Long Thread Coupling

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1 Piece pc
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Product Description:

 

Long Thread Coupling

1. Standard: API 5ct 

2.Size: 2-3/8''-20''

3.Grade: K55,J55,L80,N80,P110

 

1

2

3

4

5

6

7

8

9

10

11

12

13

Size

O. D.

in

Casing

O. D.

D in

Coupling

O. D.

W in

Length

NL in

Diameter

of

Recess

Q in

Depth

of

Recess

q in

Width

of

Bearing

Face

b in

Hand-Tight

Standoff

A

End of

Threads of

Coupling

Power-Tight

Make-up

J in

No. of

Threads

Per

Inch

Weight

lb

Short 

Long

Short

Long

4-1/2

4.500

5.000

6 1/4

7

4 19/32

0.500

5/32

3

0.500

8

7.98

9.16

5

5.000

5.563

6 1/2

7 3/4

5 3/32

0.500

3/16

3

0.500

8

10.27

12.68

5-1/2

5.500

6.050

6 3/4

8

5 19/32

0.500

1/8

3

0.500

8

11.54

14.15

7

7.000

7.656

7 1/4

8 3/4

7 3/32

0.500

3/16

3

0.500

8

18.49

23.87

9-5/8

9.625

10.625

7 3/4

9

9 25/32

0.433

1/4

3 1/2

0.500

8

39.75

56.11

10-3/4

10.750

11.750

8

10 29/32

0.433

1/4

3 1/2

0.500

8

45.81

13-3/8

13.375

14.375

8

13 17/32

0.433

7/32

3 1/2

0.500

8

56.57

16

16.000

17.000

9

16 7/32

0.433

7/32

3 1/2

0.500

8

76.96

18-5/8

18.625

20.000

9

18 27/32

0.433

7/32

3 1/2

0.500

8

119.07

20

20.000

21.000

9

11

1/2

20 7/32

0.366

7/32

4

0.500

8

95.73

126.87

 

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Q:What's the half pipe connection?
The main function is to connect the small main pipe to the big main pipe and reinforce it. The common branch pipe is smaller than DN50, will use half pipe joint, more than DN50, must choose the variable diameter three links to connect.
Q:What material does the hydraulic pipe joint use? Carbon steel or cast iron?
The joints are mainly welded, flared and jacketed.Cast iron is generally used on low pressure. Not welded, sealed with raw material tape and thread. 0~1.6mpa, right?.
Q:May I ask what material EN39 is? Used to make a threaded pipe joint
EN39 is a European standard, the standard number is EN39:2001. The standard formal name is: carbon steel pipe for scaffolding.
Q:What is pressing type pipe joint
Belongs to a class of hose joint, joint sealing need to withholdA joint body and sleeve are generally formed
Q:Hydraulic pipe quick coupling principle of hydraulic pipe joint
JB/T6381 ~ 6385-1992 burking hose connector has the advantages of convenient installation, but added a tightening process. After the hose is damaged, the joint coat can not be reused, and it is made up of a steel wire braided hose. The utility model can be connected with a welding pipe joint sealed with a O ring. Pipeline system suitable for oil, water and gas as medium. Medium temperature: Oil: -30 ~ 80 degrees Celsius; air, -30 ~ 50 degrees Celsius; water, 80 degrees below JB/ZQ4427 ~ 4428-1986, three valve type hose joint assembly, do not need to remove the rubber tube of the outer layer. A slightly different diameter of hose hose, hose on the joint coat of pre compression to compensate. Hose pre compression in 31% ~ 50% range to ensure no leakage under the pressure of work, will not pull glue, cover does not break. With the welded pipe joint, quick joint, sleeve type pipe joint used for oil, water and gas pipeline system for medium, working pressure, medium temperature by connecting hose limited JB/ZQ4429 ~ 4431-1986 quick change connector (both open and closed) tube apart and self sealing pipe. In the liquid will not be lost, so it is suitable for frequent disassembly occasions. The structure is complex, and the local resistance loss is greater. Suitable for oil and gas pipeline system for medium, the working pressure is lower than 31.5MPa, the medium temperature of -20 to 80 DEG JB/ZQ4434-1986 quick change connector (both ends open) for oil and gas pipeline system for medium, the working pressure of medium temperature according to connecting hose limited JB/ZQ4435-1986
Q:Apart from the air-conditioning, the high-pressure pipe is not tight enough. What shall I do?
If the connection is not tight, is the copper pipe joint cracked or deformed?
Q:Pipe joint thread, said in 2 / 3 / 4 points, what does that mean, how to convert ah?,
A threaded pipe joint, said the 2 / 3 / 4 what is the meaning of: usually refers to the diameter of the pipes, is expressed in Imperial units; conversion relationship: 1 inches =25.4 mm, 1 inch =8, 1 points =1/8 inches =3.175 mm; then, 2 inches =2*3.175=6.35 mm; 3 English major is approximately equal to 10 mm; 4 points equal to approximately 15 mm. Preliminary estimates, according to the general 1 inches =25 mm; 1 =3 mm old!
Q:Outside the wire (wire) of what the standard joint size
The metal joint is made of zinc alloy. The surface is zinc plated, sanded or chrome plated. The structure is close, without porosity and high strength. Reliable connection with metal hose, beautiful appearance;The metal joint is an end connection and a linear connection for connecting the metal hose to the case;It is recommended to use an inch metal hose joint or a metric thread metal joint;Can be customized a variety of non-standard metal hose joints, special metal joints.Ferrule type metal joint
Q:What is the manual pre assembly procedure for the EO-2 joint?
4, the pre assembly force should not be too ambassador, the inner edge of the card sleeve is just inserted into the outer wall of the pipe, and the clamping sleeve should not have obvious deformation. When the pipeline connection, and then according to the specified tightening force assembly. Phi 6-1 card sleeve tightening force is 64-1 15N, 16 MMR 259n, Phi Phi 18mm for 450n. If the sleeve is badly deformed at pre assembly, it will lose its sealing effect.Matters needing attention:1, prohibit adding sealant and other fillers. Some people in order to obtain better sealing effect, in the card cover with sealant, the result of sealant is poured into the hydraulic system, causing hydraulic components, such as plugging holes.2. When connecting the pipe, should make the pipe has enough deformation allowance, avoid the pipe by tensile force.3. When connecting the pipeline, it should be avoided to be subjected to lateral force, lateral force caused by the assembly seal is not strict.4, when connecting the pipeline, should be a one-time good, avoid repeated disassembly, otherwise it will make poor sealing performance.
Q:Why are the sleeve joint leaks?
Main reasons and troubleshooting methods of oil leakage in sleeve type pipe joint:The card sleeve type pipe joint with highest accuracy requirements (diameter > drawn tube. When the cold drawn pipe and the sleeve matching parts are not closed, the strain has an axial pin (the outer diameter of the pipe and the inner diameter of the sleeve), it will leak. Solution: at this time can be cut off a strain of cold drawing tube, or replace the card re assembly qualified.
Rapidly developing, we could produce 1,300,000 couplings. We have passed API, and our products include all types of API 5CT. If you are interested in our products, please contact us without any hesitation. We are looking forward to establishing mutually beneficial business relationships with clients both in the domestic and the overseas markets.

1. Manufacturer Overview

Location Tinajin,China
Year Established 2006
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Main Markets North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Southern Europe
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