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начало вебинара

1:18

конструкция обжимного фитинга

4:25

знакомство с фабрикой Hy-Lok

9:04

преимущества обжимных фитингов

18:32

компоненты фитинга

21:31

требования к трубе

23:23

различия дюймовых и метрических

25:30

материалы фитингов

29:28

сертификат на материал

33:43

рабочая температура

38:38

рабочее давление

43:30

взаимозаменяемость

44:52

герметичность

46:47

кодировки фитингов

48:38

склад

50:28

сертификаты

55:14

конец вебинара

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swagelok

сравнение

hy lok

обзор

газовоеоборудование

газ

флюид лайн

fluid line

производство газового оборудования

нефтяное газовое оборудование

фитинг

aflow

A-FLow

s-lok

Ризур-Lok

Manotherm

Tescom

Нта-пром

Dk lok

Ermeto

Superlok

Манотомь

Ham Let

hsme

биметаллический термометр

манометрический термометр

Электрические термометры

обжимные фитинги

запорная арматура

запорная арматура Hy-Lok

00:00:02

Hello, Alexey,

00:00:05

freeline channel And now we are continuing our course of

00:00:08

new webinars, and I remind you that the webinars

00:00:11

will be short, half an hour each, and

00:00:13

today’s topic is compression fittings,

00:00:16

namely their properties, how to twist and

00:00:19

crimp, we will look at the next

00:00:21

webinar. And on this one, we will look at

00:00:23

all the ins and outs about them in detail so let's

00:00:27

move on to the slides

00:00:35

So, along the way, I want to say thank you to

00:00:38

everyone who tuned in, thank you to those who

00:00:41

watch the broadcasts. And here, and of course,

00:00:43

thanks to those who didn’t make it to the broadcast and

00:00:47

watch us then they like the recording,

00:00:49

the recording will definitely be present

00:00:51

on our channel But then it we will process and

00:00:54

post it, so I see the chat, please

00:00:58

write that I can be heard and

00:01:01

at the same time I will catch my eye on this area of

00:01:05

the screen which will read

00:01:07

your further questions. I hope there will be. I hope

00:01:10

that there will be some kind of lively discussion between you and me.

00:01:14

So let's go through the slides,

00:01:19

compression fittings That means, well, the word fittings is

00:01:22

generally so common, it

00:01:24

can be found in many places in

00:01:26

anything, that is, these are connectors if

00:01:28

translated literally from Latin, so

00:01:30

this can be used not only for

00:01:32

connecting pipes, I don’t know the words fittings,

00:01:35

even there in the aircraft industry we find them in the

00:01:38

connection of some kind of metal structures.

00:01:39

that is, anywhere But in our

00:01:42

context, fittings are precisely

00:01:45

pipe connectors, that is, some parts of

00:01:47

pipeline systems or some

00:01:49

devices are connected to each other and

00:01:53

liquid or gas flows inside,

00:01:56

some kind of medium flows inside, this is the essence of our

00:01:58

fittings, which means synonyms for those fittings

00:02:00

which we will talk to you about today

00:02:02

is a fitting with two mortise rings, this is the

00:02:04

main name, but because in the

00:02:06

design there are exactly two rings, but sometimes

00:02:08

they are called compression fittings

00:02:10

Because these rings are compressed. Well, either

00:02:12

compression fittings, which is probably

00:02:14

more familiar to Russians, that’s difficult. In general, what are

00:02:18

they? just don’t call it

00:02:20

Well, the essence of the design is that you need

00:02:23

to connect a pipe to a pipe or a pipe to

00:02:25

some kind of thread, or to

00:02:27

something else, and there’s actually

00:02:28

a lot of configuration here, here we’re looking at a

00:02:30

connector that connects pipe to pipe,

00:02:33

which means one part in the

00:02:35

second section part Well, partly pulled out,

00:02:38

we see from the outside how the rings

00:02:41

are pressed onto the pipe, that is, here

00:02:44

the seal even in the current environment

00:02:46

is achieved without any gaskets,

00:02:48

metal on metal, just metal on

00:02:51

metal, and there are different contact points

00:02:53

here, well, a unique

00:02:55

situation, they tinted the pipe a little and

00:02:58

ring, here you can see the contact patch of the pipe

00:03:02

with the fitting body after crimping. That is,

00:03:05

when we inserted the pipe into the fitting, it

00:03:06

was inserted there freely, but after

00:03:08

crimping, it’s like the pipe was thin, but an

00:03:10

additional contact patch formed

00:03:11

here like a barrel. But the main

00:03:15

contact patch is still the front

00:03:17

crimp rings themselves.

00:03:19

and you see the rear rings here on the

00:03:22

inside of the pipe, you see two of these pressed through,

00:03:25

as if they were not grooves, but

00:03:27

on the contrary, convexities, that is, concavities

00:03:30

inward, this is from the outside of the rings, they compressed the pipe,

00:03:33

that is, they actually pressed the metal and

00:03:35

metal on metal, here the seal is sealed under

00:03:38

the thread, the medium should no longer go here

00:03:40

that is, the entire medium should get stuck

00:03:42

at this point. At this point A. The second

00:03:46

ring actually compresses the pipe,

00:03:48

but its Main task is not to

00:03:51

transfer the torque from the nut when

00:03:54

tightening to the front ring, this is its

00:03:56

Main task. Well, the second task is to

00:03:58

additionally hold the pipe from

00:04:00

pulling out because it is stated that the

00:04:03

fittings will work forever, almost

00:04:05

50 years, they are given a service life

00:04:07

plus subject to vibration, plus

00:04:11

subject to temperature changes when the

00:04:13

pipe will actually be pulled by the force from the

00:04:16

compression of this very pipe,

00:04:18

for example. Therefore, so that all this is reliable

00:04:22

and for many years holding you need two rings

00:04:25

so that it all seals into gases means

00:04:29

production Well, initially the

00:04:32

Freeline company was organized on the basis Well, if

00:04:35

not on the basis But as an exclusive

00:04:36

representative of the high-lock corporation This is a

00:04:39

South Korean company

00:04:40

located in the city of Busan, South Korea,

00:04:44

this is a very large factory, probably 3 in the

00:04:48

world in the production of fittings after

00:04:49

Suji Lok and Parker, well, it’s like a

00:04:52

famous brand of beginnings. They were still in

00:04:55

75 as a metallurgical

00:04:56

metalworking company. But over

00:04:59

time they grew. And they came to Russia.

00:05:01

Since 2009, represented by us,

00:05:04

well, this is also briefly historical.

00:05:07

The remark is not historical, rather

00:05:08

satellite A note about the factory, this is

00:05:10

the main factory, in fact there are

00:05:12

3 such sites in Busan, it’s just that there are also

00:05:16

assembly shops where they make some large things,

00:05:19

like gas-discharge frames. Well,

00:05:22

they do a lot of things, in fact, it’s

00:05:24

customary for the Koreans to make things like socks and

00:05:27

cars. Also, our Koreans have

00:05:30

a hellock habit of making fittings with

00:05:32

crowns and making some kind of large

00:05:34

systems, here is a large system. We do

00:05:36

n’t transport them to Russia, we assemble them here ourselves. We

00:05:38

have monitoring or fittings; our

00:05:40

production division is

00:05:41

excellent for Russian tasks, no worse than the

00:05:44

Koreans, no worse Americans assemble

00:05:47

systems, but we cooperate with Highlock

00:05:50

specifically in terms of fittings because it is

00:05:53

high quality, high Korean

00:05:55

quality. Now I’ll explain the reasons why

00:05:57

you should buy Korea and not

00:06:00

something else; it’s just that now there are a

00:06:02

lot of analogues and Chinese ones, and

00:06:05

well, in Russia they are also trying to

00:06:08

produce fittings. The problem is what does the first

00:06:10

problem mean? It’s in serial production that the wither

00:06:12

makes it all over the world, the factory is huge, that

00:06:15

is, we see a bunch of hangars there with

00:06:18

CNC dough machines, in many ways several rows

00:06:20

there, rows of 10 rows of 10 machines each. Well, there are

00:06:23

really a lot of them and

00:06:25

production busy almost

00:06:26

around the clock

00:06:28

So they work all over the world, that is, the

00:06:31

separate cost of manufacturing a

00:06:33

separate fitting, the cost

00:06:34

turns out to be much lower than here to

00:06:38

produce piecemeal even Lots there, let’s say 100

00:06:40

pieces, to start production on a

00:06:42

CNC machine to run an assembly line,

00:06:44

this will require much more

00:06:46

human resources and accordingly, there is

00:06:48

much more money, which is why it is more

00:06:51

profitable to produce so far it is more profitable to

00:06:53

produce in Korea this time and the second

00:06:54

main reason is the high quality of

00:06:56

surface treatment that the

00:06:58

Koreans achieve. And the main thing is the rings themselves; clever

00:07:02

technologies for annealing these rings allow

00:07:04

them to achieve the necessary properties of the metal so that

00:07:06

they fit correctly on pipe, that is,

00:07:09

if we can still cut out bodies with nuts

00:07:11

here in our production facility on the

00:07:14

second floor in Moscow, then of course it’s

00:07:18

better to use Korean rings

00:07:20

because no matter how much they tried

00:07:21

to replace them in Russia, they can’t make enough of the

00:07:23

properties of the metal. Moreover, on small

00:07:26

diameters this can still be not

00:07:28

as noticeable as

00:07:29

it is on large diameters such as

00:07:33

16-18-25 and 32 mm, where

00:07:37

enormous forces for compression are already at work, where

00:07:40

these are the highest requirements.

00:07:43

In general, with large pipes everything is more complicated,

00:07:45

so only hellock comes to

00:07:48

replace American manufacturers with their own

00:07:50

jig for It’s no secret that now

00:07:53

supplies to Russia are limited, that’s why

00:07:55

Hailu, thank God, continues

00:07:58

to supply to Russia, we keep a huge

00:08:01

warehouse here, more on this a little later,

00:08:03

which means what else is good at the factory

00:08:06

at the factory there is a clean production

00:08:07

of fittings for clean environments which we

00:08:10

talked about at from the last lecture, these are

00:08:11

fittings for microelectronics, fittings for

00:08:14

pharmaceuticals for clean applications, and in

00:08:17

order not only to

00:08:18

produce them, but to even package them

00:08:20

and ship them, you need a specially clean

00:08:24

room in which

00:08:25

this packaging will be produced, and such a clean room at the

00:08:28

Hilux production

00:08:33

means Well here is an example of systems assembled using

00:08:36

hellock fittings,

00:08:38

it’s beautiful, it’s aesthetically pleasing, it’s

00:08:41

modern, it’s quite compact because,

00:08:43

well, these are impulse lines, there are

00:08:46

low costs, so the pipes are

00:08:48

small, in this case, the pipe is 12

00:08:50

millimeters, maybe smaller, there

00:08:52

can be more, but such a pipe

00:08:53

allows, firstly It’s normal to bend yourself and

00:08:57

secondly, with the help of fittings we can

00:09:00

achieve a more compact design. That’s

00:09:02

what I want to say. If we

00:09:05

assemble it the old fashioned way on a thread, firstly

00:09:07

we get problems with tightness

00:09:09

because every threaded connection,

00:09:11

firstly on a pipe, it needs this pipe

00:09:14

cutting this thread is a whole problem, but

00:09:17

it’s a whole story, not a problem, it’s

00:09:18

additional man-hours, and secondly,

00:09:22

sealing any threaded connection

00:09:24

is just a whole story because

00:09:26

achieving tightness on gas is not

00:09:28

as easy as on liquid; liquids are

00:09:30

much less fluid than Gas.

00:09:33

-third positioning When you

00:09:36

have bent a solid pipe, a tubing-type pipe

00:09:39

or a calibrated stainless

00:09:42

pipe, you can make any bends

00:09:44

you like and connect only the ends. When

00:09:46

you do Piping on a Large Thick Pipe,

00:09:49

you can’t allow all this to be

00:09:51

forced to use

00:09:52

threaded elements at some point. it’s

00:09:55

just that you can’t rotate Part of the system,

00:09:56

in order to screw it in, you’ll have to

00:09:58

make semi-switches or organize a

00:10:01

separate connection like the American one

00:10:03

used here. Well, more often. We are used

00:10:06

to surges in Russia, but all this, of course, is

00:10:09

mainly for water systems, for

00:10:10

liquid ones. Maybe there are a number of them cases

00:10:13

for hydraulics but not for GAS because

00:10:18

it will be very difficult to catch all these leaks in the threads and this is why we

00:10:21

profess this technology, the

00:10:22

technology of assembly on pipes such as tubing

00:10:25

is calibrated thin stainless steel

00:10:27

pipes

00:10:28

that are inserted into a compression fitting and are then

00:10:30

crimped, then transition to

00:10:31

some kind of some thread happens

00:10:33

here, some of our customers at one time

00:10:36

professed welding, in fact you

00:10:39

can understand them If you have a talented

00:10:41

welder who does all this well and

00:10:43

you have an explosion A safe place where you

00:10:45

can weld where it is really allowed to

00:10:48

weld then of course the trick is up to you,

00:10:50

we We’ve come across hydrogen systems

00:10:53

that for some reason basically want to

00:10:54

cook, although our fittings

00:10:56

hold hydrogen remarkably well. Well, in general, everyone has

00:10:59

their own cockroaches, it’s a question of habit, a question of

00:11:02

finance, a question of speed, because

00:11:05

in order to do welding you still need

00:11:07

some kind of preparation to produce an

00:11:09

additional fitting. quickly in

00:11:11

the fields assembled in the field

00:11:13

literally, that

00:11:15

is, the fitting is repairable

00:11:17

if you want to pull out some Part of the system,

00:11:20

you can unscrew it. If you are

00:11:22

assembling for welding, you need to

00:11:24

organize special connectors so as

00:11:27

not to then cut out Part of the system

00:11:28

with a grinder. And of course, since 90

00:11:32

percent of our customers are

00:11:34

enterprises working for the oil industry, we

00:11:37

often encounter explosive

00:11:39

zones where welding is prohibited in principle,

00:11:41

you will not repair a system

00:11:43

assembled by welding there, you will

00:11:45

only repair a system assembled on fittings

00:11:47

that can be unscrewed and part of the

00:11:49

element can be changed because the fitting

00:11:51

allows itself to be

00:11:52

re-crimped and or reassemble another one

00:11:56

crimped onto another pipe nut

00:12:00

Well, I’m silent about the fact that all the assembled

00:12:04

fittings It’s beautiful, it’s modern, that

00:12:06

is, your product that you will be if

00:12:08

you have it in your final product

00:12:10

sold Use such systems,

00:12:12

it will look more profitable

00:12:15

in the eyes of the buyer than systems

00:12:17

assembled by welding or on threads

00:12:21

Yes, of course, fittings in some cases are

00:12:23

more expensive, in some cases I emphasize, but

00:12:26

sometimes the convenience and speed of installation

00:12:28

also plays a role in the

00:12:30

cost.

00:12:31

So now regarding the fitting itself,

00:12:35

this terminology means the body of the fitting.

00:12:39

This is the main part that the

00:12:42

pipe and rings are inserted into. and onto which the

00:12:43

nut is screwed on the body of the fitting there

00:12:46

can be many different outputs, this is not

00:12:48

necessarily two outputs, it can be a

00:12:50

cross tee. For example, which will have

00:12:54

four crimp nuts and a bunch of rings, there can

00:12:57

be a transition to threads. In principle, we

00:13:00

have threaded fittings that have threads

00:13:01

on both sides

00:13:03

means Well, in any case, this is called

00:13:05

the body of the fitting, then there is a front

00:13:08

wide ring that goes Closer to the

00:13:10

body and it is larger, which is larger,

00:13:12

which looks like a cone, then the front is

00:13:14

considered and the rear is considered the one that is

00:13:16

closer to the nut is closer, how to say to the

00:13:19

outer surface, it is smaller, which

00:13:22

means in the front The crimp ring, like the

00:13:25

body of the fitting, has a conical

00:13:27

surface inside which A actually

00:13:30

includes the answer to the quantity of the surface of the

00:13:32

rear ring. That is, we have two crimping edges.

00:13:34

Here is one crimping edge, here is the second

00:13:38

crimping edge, they all seem to be

00:13:40

crimped against the cone, why does this happen

00:13:42

because the taper different when we

00:13:45

press one cone into another, if they have

00:13:47

different tapers, then it’s like the cone

00:13:49

that is wider, it starts to be internal, it

00:13:51

starts to deform, deform

00:13:53

and press onto the pipe now the nut

00:13:57

Well, the nut is such that I do

00:14:00

n’t specifically confuse it with this side, that

00:14:03

is, if you you see this

00:14:04

cylindrical flange on the side of a

00:14:07

strange pipe, the country of the hole for the

00:14:09

pipe is most likely a nut of a

00:14:12

compression fitting with two exit

00:14:13

rings, also other standards look like this. Otherwise,

00:14:15

we will look at them in the next lectures

00:14:18

and the inner surface of such a nut is

00:14:21

covered with silver plating, this is a special

00:14:24

coating that is designed to reduce

00:14:26

friction between thread and the body of the fitting The whole

00:14:29

point is that when tightening, well, we

00:14:31

turn with a wrench, the nut presses on the

00:14:33

rings, the rings are pressed into the pipe with a

00:14:35

fairly large moment, and so due to

00:14:37

this extrusion. It was also not enough to

00:14:40

get resistance from the thread and to

00:14:42

reduce this moment, the

00:14:44

resisting friction moment it opens from the thread with a

00:14:47

special compound.

00:14:50

Unfortunately, it doesn’t hold very securely,

00:14:53

but from any manufacturer it’s

00:14:55

just a spray on stainless steel, and if you

00:14:58

unscrew and tighten it many times,

00:15:00

over time it will wear off and at

00:15:02

some point,

00:15:03

friction between the body and the body will simply begin to increase. with a nut

00:15:06

for the time being, you will be able to

00:15:08

compress it again with the same nut, but at

00:15:10

some point you will start to get

00:15:12

scuffs because stainless steel

00:15:15

on stainless steel has very high friction, this is a

00:15:17

property of metals, this is not a property of

00:15:18

hillock fittings, this is what metals you don’t

00:15:21

take even if How will a highlock have

00:15:23

such a polished, smooth

00:15:25

surface? In any case, scuffing will occur

00:15:27

on the surface, and

00:15:30

the smoother the surface, the more scuffing

00:15:32

will begin there, so it’s

00:15:36

recommended to lubricate it sometimes; the

00:15:38

manufacturer doesn’t recommend it

00:15:40

just like that. How to lubricate it? Why?

00:15:42

Because they are fittings they are quite clean, they

00:15:45

can be used for dangerous gases

00:15:46

that are not compatible with lubricants,

00:15:48

such as oxygen or fluorine, and

00:15:51

some strong oxidizing agents

00:15:54

cannot be used with lubricants. But there are, for example,

00:15:57

perforated lubricants with fluoroplastic,

00:16:00

which is possible, that is, look at this topic

00:16:02

separately carefully. So for large

00:16:05

diameters. If you will additionally

00:16:06

lubricate the thread, this will generally

00:16:08

help you extend the durability of the

00:16:11

fitting. If you are going to

00:16:13

unscrew it many times, tighten it is

00:16:14

another question: What is a connection? In

00:16:17

most cases, it is

00:16:18

assembled once and for all; assembled and forgotten; here is our

00:16:21

main theory, as it were, that we want to

00:16:24

create a tight connection which

00:16:27

holds gas fluids well, even such as

00:16:30

helium, with just one compression, that

00:16:33

is, they compressed once and forgot.

00:16:36

So now in terms of dimensions in general. For what

00:16:39

sizes is this technology suitable? If

00:16:41

we take a pipeline with a diameter of I don’t know,

00:16:44

10 centimeters, then definitely not; for

00:16:46

large diameters this technology is not

00:16:48

suitable why Well, first of all, the cost of

00:16:51

manufacturing large fittings will be applied.

00:16:54

They will have large fittings for the price; they

00:16:56

actually go by weight, almost a canopy.

00:16:59

Because stainless steel 316 itself is an

00:17:02

expensive metal. Nickel is there or Den,

00:17:05

especially since the last year the price has gone up very much, the

00:17:07

factory and so we have big concessions

00:17:09

does that's why

00:17:10

large diameters are unprofitable

00:17:15

in terms of price, they can be, and secondly, there are

00:17:17

huge torques, even if we take

00:17:19

a diameter of 38 mm or 2 inches, there

00:17:23

should already be a huge key of size There, at

00:17:25

least a meter is better, a meter and a half if

00:17:28

you understand what tightening torques are

00:17:30

the fact that the six-eight fittings you

00:17:33

can squeeze with a wrench with one hand and two

00:17:34

fingers without problems, that is, the

00:17:36

increase in the

00:17:38

torque is quadratic in diameter, that

00:17:42

means what sizes are there,

00:17:45

firstly, they come in inches, it’s all in

00:17:48

our catalog in plates with a blue cap,

00:17:50

sometimes metric in a plate with with a black

00:17:52

cap, pay attention to this, this means that

00:17:55

inch sizes do not

00:17:58

have the letter m in the coding, this is the first

00:18:01

column, this is how the size is in the

00:18:04

fitting coding, we will talk about this

00:18:05

carefully on the next slides. This means that

00:18:08

metric sizes have

00:18:10

the letter m everywhere, and inch sizes also have some numbers - then that’s

00:18:13

where they come from, we’ll talk about it,

00:18:14

and under the thread we have a thread oh

00:18:18

under the nut we have a Yunes thread, this is a

00:18:21

universal American thread of

00:18:23

the family whose diameter

00:18:26

exactly corresponds to what we will

00:18:29

measure with a caliper, that is, we are on the

00:18:31

caliper here really there 3/ 8 intentions,

00:18:33

yes, something

00:18:36

else, just some kind of

00:18:39

unf, some kind of what it depends on. The fact is

00:18:42

that, like a metric thread, an

00:18:44

American universal thread has

00:18:46

several rulers: the main one is more accurate, super accurate,

00:18:49

and there Extra Fine is just

00:18:52

super super accurate,

00:18:54

well, the smaller the pitch, the more exactly and for

00:18:57

some diameter ratios This is

00:18:59

20 The figure is a rough step for

00:19:03

small diameters for some larger ones

00:19:05

20 threads per inch is a small step,

00:19:08

that is, what Well, you see, the pitch for all of them is

00:19:11

almost the same except for the small size

00:19:12

for all 20 threads per inch and the diameter is different,

00:19:15

it’s clear that a

00:19:16

tiny fitting will look like it has a

00:19:18

large pitch, a large fitting will look like it

00:19:20

has a small pitch, although the pitch is

00:19:22

universal That’s why some

00:19:25

Well, in general, if you need to know what kind of

00:19:27

thread there is, go to the catalog on our

00:19:30

crimped fittings on the first page

00:19:31

we get here is this plate and look there

00:19:34

What is the thread in our size

00:19:36

by the way Please note that in

00:19:38

some sizes the thread is the same,

00:19:40

for example Six Well, a 6

00:19:42

mm tube and a quarter inch tube

00:19:44

which in reality measure 6.35 mm

00:19:50

they have the same thread under the nut 7/16-20

00:19:53

yunf absolutely identical threads, this in

00:19:57

some cases allows you to combine

00:19:58

nuts, but you need to do this Be careful

00:20:00

only with low pressure, that is,

00:20:03

if you suddenly lose a nut of 6

00:20:05

millimeters And you have a nut of a

00:20:08

quarter of an inch You can replace it with

00:20:10

such a nut

00:20:11

in this connection, but it is better, of course,

00:20:14

to refrain

00:20:17

So that means once again the minimum

00:20:20

maximum minimum size is 1/16

00:20:22

inch this is an inch this is the diameter of the tube

00:20:25

approximately 1.6 mm this is the outer diameter of the

00:20:28

tube So all the fittings have all the

00:20:31

dimensions according to the outer diameter of the

00:20:33

inner tube for us in this case the

00:20:35

internal passage of the pipe may be

00:20:37

different there 1/32 inch 1/30 inch it doesn’t matter here the

00:20:41

metric minimum is 2 mm But the

00:20:45

maximum 2 inches in fact in the

00:20:47

metric there is also such a big one This is 50

00:20:49

millimeters this is not a size indicated here But

00:20:51

in fact it exists

00:20:54

Please note that in large

00:20:56

metric sizes there are under thread oh under the

00:20:59

nut the thread is not inch

00:21:02

ametric Why did the Koreans do this I

00:21:05

don’t know but there may be difficulties with the

00:21:07

interchangeability of

00:21:09

spare parts from swagil Lock and some other

00:21:12

competitive manufacturers, for some

00:21:14

it is metric, for others it is inch

00:21:16

like the corresponding inch sizes,

00:21:18

so please don’t get excited about this

00:21:20

issue But this only applies to the

00:21:22

largest fittings, which are very rare and

00:21:25

few people use them due to their large

00:21:27

size,

00:21:31

which means the pipe that is used with

00:21:34

our fittings, as you already understood, it

00:21:36

can be metric, inch, this is not the same thing, there is

00:21:39

no need to confuse them, these are different

00:21:41

pipe assortments But they all belong to the

00:21:45

standard stma269 or a213 Well, we

00:21:48

rely on standard a 269, this standard

00:21:51

describes what deviations in the

00:21:53

outer diameter there can be and what

00:21:55

deviations in ovality if anyone is

00:21:57

interested, we look into the Standard and look at

00:21:59

specific numbers and if someone suddenly

00:22:02

got hold of it With a domestic pipe he wants to

00:22:04

crimp in our fittings, then here you really

00:22:07

need to be very careful, you need to measure the

00:22:09

deviation in diameter, it should not

00:22:12

go beyond these frameworks described here,

00:22:14

if the pipe is small, then no more than

00:22:17

700 mm deviations, if there is a medium pipe

00:22:20

1/10 mm and large sizes

00:22:24

are plus -minus 0.12 mm is a deviation in the

00:22:28

outer diameter from the nominal value, then

00:22:30

these fittings have a fairly strict tolerance

00:22:32

Yes, unfortunately, why?

00:22:34

Because the rings are very, well, kind of

00:22:36

demanding if you want to get a

00:22:39

reliable connection that will work for you for 50 years in

00:22:42

conditions of vibration and temperature changes

00:22:44

you need to adhere to

00:22:47

these

00:22:48

requirements, otherwise there will be no tightness

00:22:51

at any pressure if you have,

00:22:53

excuse me, 5 atmospheres and you won’t even

00:22:55

notice the water, if you have something

00:22:57

a little leaking somewhere, it simply won’t

00:22:59

get through, it’s water, and if you have 400

00:23:02

atmospheres, hydrogen or helium, then of course

00:23:04

it will be noticeable. So for the pipe to be

00:23:07

compressed well, it is important that the pipe is

00:23:09

softer than the fitting rings, if we are talking about

00:23:12

stainless steel 316, then the hardness of the pipe should

00:23:16

be no more than 90

00:23:18

Well, for other fitting materials,

00:23:21

the pipe should be different, respectively.

00:23:25

How to distinguish between metric and inch If

00:23:28

you they bought them and forgot to sign the bags, they

00:23:31

all put them together And now

00:23:33

everything is hand-painted for a short educational program. So there are

00:23:37

dimensions that are very similar,

00:23:39

two fittings for a six tube are photographed here, there is a

00:23:42

hole of 6 millimeters with

00:23:45

kopecks here, a quarter of an inch pipe 6.35,

00:23:49

also with kopecks, you can’t tell the difference by appearance

00:23:51

you can measure with a barbell But it’s not clear you

00:23:54

will measure the hole in the nut is 6

00:23:56

millimeters. And for the fact that it’s a little larger

00:23:58

because it fits with a gap,

00:24:01

in general, so as not to deal with this nonsense,

00:24:04

I recommend paying attention to these

00:24:05

sides that metric

00:24:08

sizes of fittings have, they’re tiny the side

00:24:10

is smaller than a millimeter, even by less than a third of a

00:24:12

millimeter, it is present on all

00:24:14

nuts and the body and the fitting nuts themselves and

00:24:18

minometric sizes, inch sizes

00:24:19

do not have this side, but if you look

00:24:23

from the side, here is the side Well, in an enlarged

00:24:26

view And for the inch size there is a

00:24:29

classic cut of the nut after this

00:24:31

60 degree groove of the dart there is a

00:24:34

straight cut straight plane all without

00:24:37

a side that's how they differ even if

00:24:40

you removed the nut you can look at the

00:24:41

body of the fitting for example there is a tee

00:24:44

from which the nuts have disappeared somewhere but we

00:24:47

need to estimate what size it is We

00:24:49

measure the inner surface with a caliper

00:24:51

in which the pipe is inserted and

00:24:54

we measure not along the outer part but inside where

00:24:57

it goes into the cylinder, that is, first

00:24:59

there is a cone on which the rings sit;

00:25:01

we don’t measure this cone, we measure deeper

00:25:04

where the cylindrical surface goes,

00:25:06

don’t be mistaken. So then we look at whether there is

00:25:09

a side or not a side if there is a side, there is a

00:25:11

wonderful metric size of the

00:25:14

portico, no, we are looking for the corresponding

00:25:16

inch, similar in millimeters to

00:25:18

what we measured, here is such a simple

00:25:21

way to distinguish practically from inch

00:25:24

in materials, in fact there are a

00:25:27

lot of materials by the way, I don’t see something in the

00:25:29

question chat, don’t be shy, you

00:25:32

write Maybe

00:25:34

something is already brewing there. So the

00:25:38

main thing 90 percent of our sales and, in

00:25:42

principle, the needs of the Russian market

00:25:44

is stainless steel 316 But this is

00:25:47

the need of the oil industry and those areas of

00:25:49

the industry that we discussed in the last lecture;

00:25:50

in fact, black steel

00:25:53

is also black steel

00:25:56

they are used a lot in hydraulics, but fittings with two harmful

00:25:58

rings are rarely used for hydraulics

00:26:01

because there is a separate series about this,

00:26:03

there will be one of the next lectures,

00:26:05

but with two harmful rings they are still more

00:26:08

often used for gases because these are more

00:26:11

critical components, they are more dangerous,

00:26:12

higher pressures are therefore

00:26:14

stainless steel

00:26:17

prevails and not just any,

00:26:19

mostly 316 can be made from other

00:26:22

grades, there are 16, there are

00:26:25

304 steel, 321

00:26:28

steel, a lot, but basically it’s still

00:26:31

316 because it exhibits

00:26:33

good corrosion-resistant properties

00:26:36

due to alligating additives. Yes, it is a little

00:26:39

more expensive, but due to high serial production,

00:26:41

the Koreans managed to achieve the same

00:26:43

cost of production of 316 304 steel

00:26:46

because 304 rolled metal and all sorts of

00:26:49

other stampings they have less than 316,

00:26:52

which means if we work with such fittings with such a

00:26:56

pipe, then we take fittings, that is,

00:26:58

on the contrary, with stainless steel fittings,

00:27:00

then we do not take the pipe

00:27:02

rough hardness

00:27:04

80 90

00:27:08

no more no more carefully there

00:27:12

may be an error in the slide if you see an

00:27:14

error write to me in the chat please

00:27:16

So in second place we have brass

00:27:19

brass fittings also come in Of course

00:27:22

they are used with brass they come with a copper

00:27:25

tube copper tube it can be

00:27:26

annealed not annealed But for brass

00:27:28

fittings It’s all suitable, both hard and

00:27:31

soft, which means

00:27:35

brass is not a corrosion-resistant metal

00:27:38

Unfortunately, even on water, in general, over

00:27:41

time it oxidizes, not only that, it’s just something

00:27:44

stainless black steel gold

00:27:46

screw in you also have galvanic steam can

00:27:48

form with increased corrosion in the

00:27:51

contact zone of these metals Well, in general,

00:27:53

non-ferrous metal But there are gases for

00:27:56

which brass must be used,

00:27:57

for example, oxygen in which stainless steel

00:28:00

burns under certain conditions but brass

00:28:03

does not. If high-pressure oxygen has

00:28:05

all kinds of oxygen shock, then of

00:28:07

course you need to take brass and Copper pipe,

00:28:10

but there are special alloys Maneli

00:28:14

Kanelen Kaloi hostella, there are a lot of them,

00:28:18

in fact, there are only 10 models on

00:28:20

the list of highlock laptop model 400, one of the

00:28:23

most popular there, the hardness of the pipe

00:28:26

should be 75 RB, which means

00:28:31

we produce hostella,

00:28:32

but by the way, with the supply of these

00:28:35

materials in the last time there is some

00:28:38

complexity, the delivery time has been increased, the situation has been increased, the

00:28:41

Korean government has limited the supply of

00:28:45

such materials specifically for the nuclear

00:28:47

industry in Russia, but firstly,

00:28:49

we have workarounds for parallel

00:28:51

imports, if there is a reduction in this, we

00:28:54

bring it directly, we can bring it

00:28:56

simply through Kazakhstan, we have such an

00:28:58

opportunity We have our own

00:29:00

face there, our own partner

00:29:02

company, namely we, there are

00:29:04

also all sorts of polymer options,

00:29:07

there is aluminum, Titanium, in fact, there is a lot

00:29:10

more, open the stock list in Korea, what are there,

00:29:12

fittings, and what not, and

00:29:14

duplex steel can be all this is possible but

00:29:16

for extra money Of course in

00:29:18

smaller batches with a long lead time Well

00:29:21

because they produce 316 non-stop

00:29:24

conveyor something else they may not

00:29:27

have consumables which

00:29:29

means certificates for the material yes So there is a

00:29:35

marking on the fitting By the way, as a rule there is a marking corresponding to

00:29:37

the certificate Well there is a three-digit

00:29:39

literal number code by which

00:29:41

you can restore the certificate for the

00:29:42

material and the Koreans, upon request,

00:29:45

can send certificate material for any batch.

00:29:47

Because before manufacturing,

00:29:48

they pinch off a

00:29:51

piece of this rolled metal from the workpiece and take it for

00:29:53

analysis because they need to check their

00:29:56

suppliers of metal supply from them

00:29:58

mainly from Korea, there is something from the USA,

00:30:01

there is something from Japan, this is the

00:30:03

hexagonal rolled metal itself, which is

00:30:06

mainly used for all fittings.

00:30:08

Well, they sharpen something

00:30:10

based on stamped blanks that they

00:30:13

make in Korea. That is, under the corner for

00:30:15

the crosses, they stamp blanks.

00:30:18

That means from Elizabeth’s question: Is it better to use

00:30:21

compression fittings or threaded ones?

00:30:25

Well, we need to clarify the question actually.

00:30:27

Why is it better for

00:30:29

me at home? It’s better to have threaded ones; it’s

00:30:32

more convenient for me to work with them because everything

00:30:33

else is assembled on threaded ones. By the way, we

00:30:35

have to face such situations

00:30:36

when the customer needs

00:30:39

to change some unit only in its installation and

00:30:41

everything is on the thread, what should I do? throw out

00:30:44

half the product and assemble everything on the pipe,

00:30:46

yes This is a good cool option, but

00:30:48

it can’t always be done quickly and

00:30:50

the customer doesn’t always agree to it. Sometimes you

00:30:52

just need to change some

00:30:54

threaded fitting, then please. We have

00:30:56

threaded fittings separately, just

00:30:58

threaded ones, but there are sealing issues.

00:31:01

Because it’s one thing to figure out what kind of thread there is,

00:31:03

another thing is to figure out how

00:31:05

it seals, it’s either at the end of the thread,

00:31:07

or maybe there’s some kind of tricky gasket

00:31:09

or a cone sphere, there are many

00:31:11

types of seals, that’s

00:31:13

why if you are assembling a

00:31:16

fitting with two cutting rings for pressing, of course

00:31:18

this is a problem for you, partly you

00:31:21

will avoid it and partly you won’t because in any

00:31:23

case any pipe eventually comes to

00:31:25

some kind of unit in which the

00:31:27

thread is cut and in any case you will have to

00:31:28

interact with the thread here so

00:31:32

And on threads, you and I will also have an

00:31:35

educational lecture on pipe threads, almost the

00:31:37

next lecture True In a week and a half, that

00:31:39

just

00:31:42

means let’s look carefully at the

00:31:44

certificate for the material, what

00:31:46

features we have here, what highlock was able to

00:31:49

be measured Well, of course, iron is not included

00:31:52

here carbon entered, the

00:31:55

standard that should be shown at the top, and the

00:31:58

indicator that they measured at the bottom, I

00:32:01

just literally before the lecture pulled out the

00:32:03

first certificate I came across

00:32:05

from the folder, didn’t choose anything, well,

00:32:07

’15, because it was apparently the first

00:32:10

on the list, excuse me, but believe me,

00:32:12

modern 2023 has nothing from it no

00:32:15

difference, everything is the same,

00:32:17

here the main thing is to pay attention to

00:32:21

nickel with chromium, which is within a

00:32:23

tolerance of 12. In fact, they sometimes

00:32:25

go along the Lower edge in some

00:32:27

products that are not in contact with

00:32:28

the environment, some parts. But still there

00:32:31

will be more than 10 in any case, because

00:32:33

10 for Nickel is the threshold below

00:32:36

which

00:32:38

intercrystalline

00:32:41

pitting or crevice corrosion can begin in the metal Well, it

00:32:44

can start anyway Well, more than ten

00:32:47

further These are the critical indicators that

00:32:50

the cotton can withstand And of course there is

00:32:52

molybdenum or bdenum Well, don’t be greedy,

00:32:55

put it okay besides this, hellock

00:32:58

prescribes various

00:33:00

parameters for I don’t know, but for the

00:33:04

physical properties of the workpiece, that is,

00:33:05

they compress, stretch, they do something else with

00:33:09

it, in general, these are all sorts of

00:33:10

elastic modulus, they prescribe it all in

00:33:12

the certificate there below, not everything

00:33:15

fit below they are what -the parameters

00:33:17

are also written if you are interested.

00:33:19

So, write all this out for some

00:33:22

product

00:33:23

that is supplied to the party, this code,

00:33:27

this code will be applied to the fitting itself on the

00:33:30

neck of the fitting body under the thread unf this

00:33:33

one between the thread and the hexagon, you can

00:33:35

read this code or between other In

00:33:39

general, somewhere there will be such a code

00:33:41

present

00:33:44

in the parameters

00:33:47

Well, let's start with the temperature, probably now let's

00:33:49

continue with the temperature

00:33:51

stainless steel is damn good because

00:33:54

it supports cryogenics because

00:33:56

cryogenics is also our sector,

00:33:58

quite large

00:33:59

liquefaction of natural gas liquid

00:34:01

natural gas liquid nitrogen that's all

00:34:05

will only be assembled on stainless steel

00:34:07

Unfortunately, black steel simply does not withstand

00:34:09

such temperatures Despite the fact that at

00:34:11

low temperatures corrosion could

00:34:13

be acceptable and less could just be

00:34:15

painted Yes,

00:34:17

ordinary steel becomes brittle and can be

00:34:20

torn apart by a pressure surge, stainless steel does

00:34:22

not behave like that minus 196 please,

00:34:24

well the upper limit is not as high as that of

00:34:27

some other steels - 650 approximately

00:34:30

degrees Celsius, but in principle for

00:34:33

most tasks this is a feasible burden. Well,

00:34:37

besides, we are talking about stainless steel

00:34:40

directly in the fittings themselves. That is, in

00:34:42

principle, you can heat it higher, in

00:34:44

general, nothing It will be And the

00:34:46

hermetic personality will not even be lost, we carried out

00:34:48

such tests on our fitting here on the side,

00:34:50

we heated the fitting here clearly above 700

00:34:52

degrees Judging by the glow of the metal, but

00:34:56

nevertheless it did not lose its tightness;

00:34:57

moreover, we then barely disassembled the tube.

00:35:00

We could not get it out of there, that is the

00:35:02

nut is unscrewed, the tube

00:35:03

is pulled out, that is, in principle, you

00:35:05

can heat more if you are assembling

00:35:07

some kind of furnace or testing it on an installation with a

00:35:09

higher temperature, then of course

00:35:10

you need to look at the temperature of the pipe itself

00:35:13

and the pressure that you are going to

00:35:15

keep inside

00:35:17

if there is low pressure stop,

00:35:19

let’s say a python tube just heats up

00:35:21

Well, that’s okay Let it heat

00:35:23

up to 1000 there 1200 melting point

00:35:27

means brass Unfortunately,

00:35:31

its upper limit is only 204 degrees Well, alas,

00:35:35

minus 54 But we give an interference fit of minus

00:35:39

60 degrees if there are

00:35:41

actually some cold conditions Here this -54 is very

00:35:45

conditional,

00:35:46

here we are talking about the fitting itself about contact

00:35:49

with a copper pipe, but essentially brass is

00:35:53

used. In many cryogenic

00:35:55

fittings there is brass, bronze, it

00:35:59

appears there, that is, the question here is the

00:36:00

ratio of metals in this

00:36:04

Manel alloy, temperatures were drawn for the model

00:36:07

Well, actually a corrosion-resistant alloy

00:36:10

is sufficient, that is, we give it when

00:36:12

stainless steel cannot cope with some

00:36:14

chemical that does not corrode the veins, then

00:36:16

you need to resort to Manela, but more often

00:36:19

in the context of some small parts,

00:36:21

for example, spare needles for needle

00:36:23

valves, that is, what is the responsible unit

00:36:25

- the needle, in addition to which the entire flow

00:36:28

is corroded, which can lead to

00:36:30

non-sealing, so we change it and the body,

00:36:31

but the walls are so thick there, that

00:36:33

millimeters per year rotted, so it’s no big deal, it

00:36:35

will hold 1000 bar

00:36:37

without problems, which means our

00:36:39

catalog has a temperature correction for

00:36:42

pressure of various materials

00:36:45

Well, it is clear that at ordinary room

00:36:48

temperatures the correction is one, that is, we

00:36:50

take the pressure from the table and multiply by

00:36:53

one. But if the temperature starts

00:36:54

to rise, there is a whole table up to 0.37, the

00:36:57

multiplication coefficient will be, that is, there was a

00:37:00

fitting for 500 pairs for a long time lived at 0.37 at a

00:37:03

high temperature Well, it was

00:37:05

correspondingly

00:37:06

100 bar, for example, take this

00:37:11

amendment into account. So what does the

00:37:13

reliability of the connection depend on? Now,

00:37:16

unfortunately, we won’t post a minute in terms of time,

00:37:18

now then quickly Well, the

00:37:21

first is the quality, you don’t really need to

00:37:23

blame everything on the quality of the compression fittings

00:37:24

only half depends on the fittings,

00:37:26

that is, we monitor the quality of

00:37:28

our products

00:37:29

hellock Well done, we also assemble well here in Moscow,

00:37:33

but half depends on the

00:37:36

quality of the assembly. It really depends on the quality of the pipe, that

00:37:38

is, there

00:37:40

should be no scratches, nothing, and it depends on the

00:37:43

golden hands of the assembler

00:37:47

a lot also depends on who installs these fittings. That is, you

00:37:50

may not be able to tighten the fitting,

00:37:52

you may somehow insert it crookedly, I don’t know.

00:37:54

That is, all these factors can be, we’ll

00:37:57

talk about them in the next lectures. What

00:37:59

is the freshness of a fitting? I mean

00:38:01

how many times does it has already been used for

00:38:03

crimping or some kind of assemblies. The whole point is that there

00:38:05

is a system in which

00:38:08

some kind of connector is made in the form of a fitting and

00:38:11

it is assembled several times, disassembled,

00:38:13

then somewhere somewhere in the mud of someone,

00:38:14

lying in the fields, then they are assembled back

00:38:16

It is clear that the wear can

00:38:18

be different and the

00:38:20

time will also depend on the degree of diligence in this reassembly. How many

00:38:22

times can you reassemble?

00:38:25

There is debate about this

00:38:27

and how many times you can reassemble a

00:38:29

highlow fitting, they say dozens of times, but

00:38:32

it all depends on the diameter and some

00:38:36

other conditions.

00:38:39

In terms of operating pressure, we have already, in principle,

00:38:42

gone over the manufacturer does not write down the

00:38:44

operating pressure of the fitting. Why

00:38:46

Because the fitting is obviously higher than the pipe

00:38:49

holds. But we sometimes prescribe 690

00:38:53

bar based on the fact that we have

00:38:55

complex products in the form of ball valves

00:38:57

and needle valves that have

00:38:59

crimp fittings but at the same time, the

00:39:03

maximum operating

00:39:04

pressure is prescribed, so we start from this,

00:39:06

it’s clear that it’s not the fittings that are the problem, that there’s

00:39:09

something else that won’t hold there, but

00:39:12

this is 690 bar, which is 10,000 pounds per

00:39:15

square inch. Therefore, such a non-round

00:39:17

number is stupid. It’s just like a proven

00:39:20

fact that yes, we officially have a product with fittings for

00:39:23

such pressures, in

00:39:24

fact, the real pressure that

00:39:26

holds the fittings can be greater, the

00:39:27

smaller the diameter, the higher the pressure of a three-ruble

00:39:31

pipe, a three-ruble pipe, fittings calmly hold 1,000 bar,

00:39:34

nothing will happen, especially since the

00:39:37

unfitting always acts as a

00:39:38

bandage It holds than a pipe Well, for

00:39:41

brass It is clear that the pressure is much less

00:39:43

there, in fact 200 bar is basically

00:39:46

400 bar with interference for some

00:39:49

certain diameters and the model is also

00:39:51

smaller than stainless steel, but no one

00:39:53

from the manufacturer will ever give exact data

00:39:55

because it depends on many factors there, the

00:39:58

thickness of the pipe plays a role and the

00:40:01

operating temperature, we have such a

00:40:04

sample, everyone has it in a good way, and not

00:40:07

only this is the result of a tensile test on the

00:40:10

connection with the fitting,

00:40:13

that is, they crimped the pipe 1/2 inch by 0.049

00:40:16

inches, this is almost 12 by 1 Well, the

00:40:20

wall thickness is almost 1 mm, even

00:40:23

a little smaller. The working pressure of Work

00:40:26

Impression is about 255 pairs, this is according to the

00:40:30

pipe passport, respectively, the

00:40:32

burst pressure is 4 times higher than that there, well,

00:40:35

how much is 255 multiplied by 4

00:40:38

above 1000 and the burst pressure at which

00:40:41

this burst occurred is 1025 bar Here this is G,

00:40:46

this is relatively atmospheric. Don’t be

00:40:49

alarmed, these are the same bars, it’s just that

00:40:51

0 is accepted as zero around us and not absolutely

00:40:54

zero, the vacuum is just the Koreans need to write Well,

00:40:57

in the context of such high pressures, it

00:40:59

doesn’t matter what the bar is. And so,

00:41:02

well, we see that the fitting acted

00:41:05

as a bandage and even in this place

00:41:07

the pipe is even less swollen than in a

00:41:10

straight section, that is, the pipe will

00:41:11

burst in straight sections not in the area of the

00:41:14

fittings. The only negative that

00:41:16

can arise if the burst pressure is exceeded

00:41:18

is that the pipe

00:41:21

will swell a little there and get stuck in the

00:41:23

fitting itself, it’s difficult will be able to disassemble it

00:41:26

well, using a puller to knock it out, you may have to

00:41:28

cut off some part, but

00:41:30

the tightness will not be broken, on the contrary,

00:41:32

the pipe to the fitting will fit more tightly,

00:41:34

that is, everything in the connection itself

00:41:36

will be as tight as possible, it

00:41:38

will simply become non-separable, if this happens to you,

00:41:42

it means in Remarque’s catalog by

00:41:45

pipe diameters and pressure, but we

00:41:48

will still talk about this in the lecture on pipes.

00:41:50

Therefore, I’ll just give

00:41:53

the parameters

00:41:54

and say what kind of gray zone there is, there is a

00:41:57

gray zone in which it is written for gas,

00:41:59

use pipes with a wall thickness

00:42:01

outside this zone Why this pipe it’s not

00:42:05

bad, not only that, we use 12 by 1

00:42:07

regularly. And even if you read the

00:42:09

manual carefully, 12 by 1 can be

00:42:12

used on GAZ; it’s just that the whole pipe

00:42:15

is considered thin-walled, that is, a pipe 8

00:42:18

by 07 or 12 by 07 20 by 1, it’s clear

00:42:22

that the diameter increases accordingly and the

00:42:25

wall thickness will also seem to increase, but

00:42:27

for such a diameter, the wall thickness

00:42:30

is very thin, so when

00:42:31

we compress the ring, uh, this pipe is strongly

00:42:34

pressed inward and its thickness is not

00:42:37

enough to firmly resist

00:42:39

this pressing force. Therefore,

00:42:42

this connection is pressed strongly, and it turns out to be

00:42:43

airtight, but if you have a scratch on the pipe.

00:42:45

Longitudinal,

00:42:47

some other flaw, then

00:42:50

unfortunately, when crimping, the ring will not push through

00:42:52

this flaw, but simply together with the pipe,

00:42:55

together with the pipe inside it,

00:42:57

it will be printed. That is, if the pipe is

00:42:59

thick-walled, the scratch will be

00:43:01

completely leveled by the ring, crumpled, flattened it

00:43:04

won’t be there, but if it’s thin-walled, then it

00:43:07

will remain, this scratch under the ring and

00:43:09

through it, a little at a time, a couple of molecules

00:43:11

per minute, your gel will escape into

00:43:13

the atmosphere. You don’t want this

00:43:14

right. Therefore, for gas we use

00:43:18

pipes that are not too thin-walled or we monitor the

00:43:20

quality of the pipe in the place where crimping

00:43:22

in Russia is actually done, they simply

00:43:24

monitor the quality of the pipe at the end where the

00:43:28

rings are planned to be installed and that’s all and

00:43:30

the problem will be solved

00:43:33

tests for the interchangeability of vessels with

00:43:36

locks, but we have already talked about this many

00:43:37

times, and our fittings

00:43:40

are interchangeable and not only can you

00:43:42

take them our fitting instead of their own jelly

00:43:44

Yes, the Germans, the independent company Lloyd's

00:43:46

German certification rules, such a

00:43:48

good study has already been true for a long time,

00:43:50

but the research is reliable, they

00:43:54

poured a bunch of parts into one basket and

00:43:58

ours all mixed and collected in different

00:44:00

versions

00:44:01

somewhere One ring is our one essence of residential

00:44:04

somewhere there, on the contrary, somewhere suji nut

00:44:06

location Our body of a serviceman, that is, a bunch of

00:44:08

combinations of us and competitive products,

00:44:12

all this was assembled using

00:44:14

assembly technology technology, we have the same

00:44:16

geometry of ring fittings and other things also

00:44:19

coincide except for the large sizes,

00:44:20

remember there is a different thread under the nut

00:44:22

But this was not discussed here, you see the 16 mm

00:44:25

limit and this entire system was tested with

00:44:28

cyclic loads of all

00:44:30

kinds of pressure, including

00:44:33

withstanding time. Everything is hermetically sealed so everything

00:44:37

works fine, everything holds up fine

00:44:38

Well, in principle, in life we have

00:44:40

as many veins as we have I didn’t say that you ca

00:44:42

n’t interchange with other

00:44:44

manufacturers, we then don’t bear

00:44:46

responsibility. It works because

00:44:49

here only half depends on the fitting, the

00:44:52

remaining half depends on the golden

00:44:54

hands of the master, that is, you

00:44:57

so on tightness. Why can we

00:45:01

use our highlock compression fittings?

00:45:04

How tight are they?

00:45:06

there are no metal-to-metal gaskets,

00:45:08

but nevertheless, during the initial crimping, that

00:45:11

is, when the pipe is crimped for the first time without

00:45:13

disassembling, then

00:45:14

you can achieve very high

00:45:16

tightness indicators, almost the

00:45:19

same as those of hanger fittings that are used in

00:45:21

clean environments, if everything went well, here

00:45:25

you go, a leak tester the port is a hellock

00:45:27

Sketch something is checked for leaks more

00:45:29

often with a finder,

00:45:31

all this was connected through a membrane, which

00:45:33

means that they tested tested the

00:45:36

7c 674 fitting, our usual one, they connected it

00:45:39

somehow in the system, they evacuated

00:45:42

everything from the inside to a vacuum and began to supply

00:45:45

gels from the outside, which means helium and began to

00:45:48

measure the leakage inside Well, as is usually

00:45:50

done, test pressure 2 to 10 minus

00:45:53

4 Tor

00:45:55

of this vacuum test time 30 seconds

00:45:58

leak that was measured unit for

00:46:00

10 minutes 10 cubic centimeters per

00:46:03

second atmospheric cubic centimeters per

00:46:06

second Excuse me, that is, it will

00:46:08

drop so

00:46:11

much The atmosphere will drop the pressure in

00:46:13

cubic centimeter per unit of time

00:46:16

Well, that is, absolutely, practically not

00:46:18

at all. Such small

00:46:21

leaks can be achieved with the help of fittings.

00:46:22

But you must understand that this depends

00:46:24

greatly on the quality of the pipe, it greatly

00:46:27

depends on how many times you have already

00:46:28

disassembled it because when you disassemble and

00:46:30

reassemble in a slightly different position and

00:46:33

well, it’s as if if it’s pressed onto your excuse me

00:46:37

oval pipe in a certain way, then

00:46:39

inserted a little at an angle it won’t

00:46:41

be so hermetically sealed, but in no

00:46:43

case should you wrap fum-lend in there

00:46:45

or put some kind of gaskets, it’s better not

00:46:48

there will be

00:46:49

and now for encoding sizes dimensions

00:46:53

[music]

00:46:55

Here is the entry at the bottom of the fitting encoding, a

00:46:57

custom letter And this is what the assembler

00:46:59

is what is in the assembly means cms is the

00:47:02

actual form of the fitting in this case

00:47:04

mail connector number 2 is the size of the

00:47:09

fitting connection itself And 6G is the

00:47:12

thread size because that this fitting

00:47:13

has a separate thread, just a pipe

00:47:15

thread, so these numbers are coded

00:47:19

as follows: take an inch, divide it into 16

00:47:22

pieces 1/16 inch 1/8, that is, 2 16 and

00:47:26

4 16 and so on,

00:47:28

divide into 16 pieces and this is how many of these

00:47:31

pieces we took such a figure and it will be that is,

00:47:34

if we take

00:47:35

1/8 this is two two parts two 16 parts of an inch

00:47:40

that is, the number two we take a quarter of an inch

00:47:43

this is 4/16 hence the number four and so on This is

00:47:46

just a bare number it is written either this

00:47:49

way or with the letter t if we are talking

00:47:52

about some kind of ball valves or

00:47:54

race valves with the same fitting, but

00:47:57

if we see the letter M, it means it is a

00:47:59

metric size, then we forget

00:48:00

about inches altogether and assume that this

00:48:03

tube is 6 mm 12 mm and so on. Everything that is

00:48:06

written before the letter M means

00:48:08

regarding

00:48:10

sizes of pipe threads that can

00:48:12

be on one of the sides of such a fitting, not

00:48:15

on the fitting side but on the threaded

00:48:16

side, divide the same inch into 16

00:48:18

pieces and take that number, or there

00:48:22

may be a metric thread, then

00:48:24

accordingly there will be the letter M20,

00:48:26

for example,

00:48:28

and the pitch By the way, the thread metric also

00:48:32

indicate m20p1 pinch pinch this is step one

00:48:35

this is 10

00:48:37

millimeter step

00:48:40

Since this is the last slide how we

00:48:43

store fittings in the warehouse Well, first of all,

00:48:45

we have a lot of them in the warehouse, you just ca

00:48:47

n’t imagine how many of them we have a

00:48:49

very large warehouse at a large warehouse

00:48:51

in Moscow, seriously, I’m not bragging,

00:48:53

it’s really very big, which

00:48:55

means large sizes, almost all sizes,

00:48:58

we store fitting bodies

00:49:00

separately, nuts with rings, we carry out

00:49:02

Russian assembly here after

00:49:04

shipment. This allows us to

00:49:05

combine any version of the

00:49:07

fitting body with the required rings, that’s what it

00:49:12

means According to our database,

00:49:14

this is stored as with the letter B C 674 Well,

00:49:19

you won’t see this, this is our internal

00:49:20

kitchen, just like that, it

00:49:22

lies separately. This is how we get it from Korea.

00:49:24

So, separately, nuts with rings, they

00:49:28

can be in the form of a set, they can be in the

00:49:30

form individual components front steering wheel

00:49:32

this front ring this rear wheel

00:49:36

Here But we supply you with assemblies with

00:49:38

the letter a which means that the

00:49:40

assetlet, that is, the fitting is already assembled with

00:49:43

nuts and rings And all you have to do is

00:49:45

insert a pipe from it, you don’t need to

00:49:47

buy rings for it, but you can

00:49:49

always buy spare rings in case

00:49:52

if you suddenly want to crimp some

00:49:54

other Pipe and throw away that piece in the

00:49:56

same body of the fitting, you can crimp it again, which

00:49:59

means we store brass fittings

00:50:01

in their entirety, so they come without a letter,

00:50:03

just cms74 dash Brass is a coding for the

00:50:06

fact that it is brass Well, it’s very small,

00:50:09

the dimensions are 1/16 inches, we protect the eyes of

00:50:12

our storekeepers and assembly operators

00:50:15

so that they don’t go crazy putting these

00:50:17

beads on the

00:50:19

body of the fitting, that’s why they’re completely small. That’s

00:50:23

probably the last one according to the certificates.

00:50:26

This is the same slide, let’s

00:50:29

take a quick look. to our website

00:50:32

where our website is here is our website How to find

00:50:35

certificates on our website here is our website the

00:50:37

main page feeline.ru we go about the

00:50:41

company for some reason for some reason there is

00:50:43

no reference information guys about the

00:50:45

company and we poke certificates the

00:50:47

page is loaded with certificates

00:50:49

certificates there is a lot of that we need we

00:50:53

If we are talking about fittings Here you need

00:50:55

to understand We

00:50:57

have received Russian-made tenge now or

00:51:00

purely Korean, most likely 99

00:51:02

percent You get

00:51:04

Russian-assembled fittings, they come with a

00:51:06

Russian-made certificate for fittings

00:51:09

But if you are with some special

00:51:12

option you ordered them to Korea and they weren’t

00:51:14

assembled in Russia but delivered entirely,

00:51:16

then you need to look for a certificate

00:51:19

specifically on hellock products, then you

00:51:21

need this, the second part here,

00:51:23

certificates or declarations of conformity.

00:51:26

And if we are talking mainly about

00:51:28

fittings assembled in Russia, then here

00:51:30

please 4 options means there is

00:51:33

RTS 032 there is this RTS 010 this is just

00:51:38

general Industrial machine safety

00:51:41

0.32 this means that the product is suitable for

00:51:45

use working under pressure under

00:51:48

high pressure it means this is a

00:51:50

certificate not a Declaration this is a regular

00:51:53

certificate Let’s click on it and we’ll

00:51:55

see what it’s like represents

00:51:57

something written, there is our

00:52:01

technical specification for assembly, according to which we are

00:52:03

assembling, in fact, this is a huge

00:52:05

thick Talmud of which

00:52:07

only the first page is shown here,

00:52:10

if we open a similar certificate

00:52:13

made in Korea,

00:52:15

then here we will see a list of valves,

00:52:18

fittings and everything that is included there that means

00:52:22

here is a list, each one has its own

00:52:25

fuel injection pump code if you suddenly need a cat Nvid it

00:52:27

is indicated in the invoice in the

00:52:30

shipping documents

00:52:35

So, actually, on the fitting, probably

00:52:37

all

00:52:38

this is on the fitting for the fittings, basically

00:52:41

this is the fitting of the hellock product, the same thing

00:52:43

is And there is also PMR certificates with

00:52:46

this is a maritime register, the Russian maritime

00:52:48

register is there. Similarly, there is a foreign

00:52:50

Lloyd's certificate, this is an

00:52:55

international maritime register, the fact is that the fitting

00:52:56

can be used on ships sailing on the

00:52:59

sea Why Because there is salty

00:53:01

sea water, something can corrode our fitting is

00:53:04

not traveling around, so you can, well, in Russia you can have your

00:53:08

own requirements of the RS and we also

00:53:10

have a standard rmrs approval. If someone

00:53:13

suddenly needs a river register. You know what?

00:53:16

If we have a maritime

00:53:18

register certificate, it automatically

00:53:20

absorbs the river register, that is, the river register is

00:53:22

no longer needed if you are building an oil tanker

00:53:25

or working on an oil platform with

00:53:28

fittings can be useful for free,

00:53:31

we also have such a certificate,

00:53:34

rule 110, I’ll open it for fittings, it

00:53:37

says that the fitting can be

00:53:39

used on some kind of under-hood

00:53:42

fittings. On equipment running on

00:53:45

compromised natural gas, here is the

00:53:48

Natural gas cng compressor, which means this is the

00:53:52

product that we have approved for

00:53:54

use on cng it is indicated in these certificates

00:53:57

there is a whole list for fittings in a

00:53:59

separate separate PDF highlighted and

00:54:02

here are some options for fittings there

00:54:04

cnca these are all the types of fittings

00:54:07

that are approved for this matter. Also

00:54:11

in some cases when working with motor

00:54:13

fuel this can be useful now

00:54:14

regarding us we have

00:54:16

one hundred Gazprom 9001 certificates we passed it a couple of years

00:54:20

ago we support it We have our own

00:54:23

specialists for interaction with the

00:54:25

certification company

00:54:27

so we have implemented a

00:54:29

quality management system both in production

00:54:32

and in warehouses and throughout the organization

00:54:35

this it is in the freeline. It is clear

00:54:37

that the highlock factory also has its own

00:54:39

international quality management system,

00:54:41

well, we just have

00:54:43

it in the freeline because we are

00:54:46

also a manufacturer, there is also Inter Gas

00:54:48

Cert, this connection is about assessing the business

00:54:50

reputation of

00:54:51

Gazprom Theme and there are certificates with

00:54:55

9001 Well, this is actually what it is,

00:54:58

well, in general, all our regalia, our

00:55:01

highlock regalia, can be viewed on our

00:55:03

website in the certificates section A We

00:55:06

return to you to the lecture with you, the

00:55:09

collection which we conclude with this,

00:55:11

thank you for being with us. If there are

00:55:13

any - then write your questions. You can

00:55:15

write them here in the comments for

00:55:17

10 seconds, or then write

00:55:21

a comment under the video and don’t forget

00:55:24

to like it, we will be very pleased

00:55:26

to understand. In general,

00:55:28

you need or don’t need our webinars and in what direction

00:55:30

we should develop now I promised

00:55:34

half an hour, in fact I spent an hour

00:55:36

because the topic is voluminous. But even so, we

00:55:39

divided it into several parts and the next

00:55:41

lecture will be about the crimping itself;

00:55:43

we’ll crimp the fitting; we’ll look at the

00:55:46

nuances of how it works; then there will

00:55:48

definitely be a lecture on threads. There will be a

00:55:50

lecture on pipes. How choose a pipe, how

00:55:53

to bend it correctly, and so on.

00:55:54

Now we will take all of this separately in detail

00:55:56

at webinars. Alexey was with you,

00:56:00

thank you for joining us. See you

00:56:03

soon,

00:56:08

not quite soon, we will have a

00:56:10

webinar in a week and a half, next

00:56:12

week I won’t be there what are you writing?

Description:

Обоснование использования, с какой трубой, какие нагрузки/давления/температуры/среды/материалы,Знакомство с фабрикой и РФ производством. 00:00 начало вебинара 1:18 конструкция обжимного фитинга 4:25 знакомство с фабрикой Hy-Lok 9:04 преимущества обжимных фитингов 18:32 компоненты фитинга 16:36 размеры обжимных фитингов 21:31 требования к трубе 23:23 различия дюймовых и метрических 25:30 материалы фитингов 29:28 сертификат на материал 33:43 рабочая температура 38:38 рабочее давление 43:30 взаимозаменяемость 44:52 герметичность 46:47 кодировки фитингов 48:38 склад 50:28 сертификаты 55:14 конец вебинара _____________________________ Наш сайт: https://fluid-line.ru/ Мы Вконтакте: https://vk.com/fluidline Мы в телеграме: https://t.me/fluidline_ru Наш канал Яндекс Дзене: https://dzen.ru/id/5f7ad0ff21a4da6245a6c83f Многоканальный телефон: +74959844100 E-mail: [email protected]

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