Oil Tubing and Casing Couplings

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China Main Port
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TT or LC
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10 Pieces pc
Supply Capability:
60000 Pieces per Month pc/month

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Product Description:

 

Name:Couplings  

Std Ref:API 5CT

Grade:J55,K55,N80,L80,C90,P110

Type: NU, EU; STC,LC,BTC,special clearance

 

Coupling Manufacturer of Tubing and Casing coupling according to API SPEC 5CT AND 5B

API couplings for oil tubing and casing

Size and Specifications

Descriptions and size

Type of Thread

O.D*L(mm)

Weight(kg)

Tubing Coupling

2-3/8"

NUE

73.02*107.95

1.28

2-3/8"

EUE

77.80*123.82

1.55

2-7/8"

NUE 

88.90*130.18

2.34

2-7/8"

EUE

93.17*130.35

2.4

3-1/2"

NUE

107.95*142.88

3.17

3-1/2"

EUE

114.30*146.05

4.1

4"

NUE

120.65*146.05

4.35

4"

EUE

127.00*152.40

4.82

4-1/2"

NUE

132.08*155.58

4.89

4-1/2"

EUE

141.30*158.75

6.05

Casing Coupling

4-1/2"

STC

127.00*158.75

5.23

4-1/2"

LTC

127.00*177.80

4.15

4-1/2"

BTC

127.00*225.42

4.55

5"

STC

141.30*165.10

4.66

5"

LTC

141.30*196.85

5.75

5"

BTC

141.30*231.78

5.85

5-1/2"

STC

153.67*172.45

5.23

5-1/2"

LTC

153.67*203.20

6.42

5-1/2"

STC

153.67*234.95

6.36

6-5/8"

STC

187.71*184.15

9.12

6-5/8"

LTC

187.71*222.25

11.34

6-5/8"

STC

187.71*244.48

11.01

7"

STC

194.46*187.15

8.39

7"

LTC

194.46*228.60

10.83

7"

STC

194.46*254.00

10.54

7-5/8"

STC

215.90*190.50

12.3

7-5/8"

LTC

215.90*234.95

15.63

7-5/8"

STC

215.90*263.52

15.82

8-5/8"

STC

244.48*196.85

16.23

8-5/8"

LTC

244.48*254.00

21.67

8-5/8"

STC

244.48*269.88

20.86

9-5/8"

STC

269.88*196.85

18.63

9-5/8"

LTC

269.88*266.70

25.45

9-5/8"

STC

269.88*269.88

23.16

10-3/4"

STC

298.45*203.20

20.78

10-3/4"

STC

298.45*269.88

25.74

11-3/4"

STC

323.85*203.20

22.64

11-3/4"

BTC

323.85*269.88

28.03

13-3/8"

STC

365.12*203.20

25.66

13-3/8"

BTC

365.12*269.88

31.77

1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110

2.We also supply permium thread products by customer's request

4.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling). 

 

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Q:How was the pipe joint named?
Use the end extension of the pipe for sealing without any other seals. The utility model has simple structure and is suitable for the connection of thin-wall pipe fittings, and is suitable for pipelines with low pressure of oil and gas as medium. The pressure is allowed to be used in table 41, table 27~41, GB5625.1 to 5653-1985Insert welded pipe jointThe length of the tube will need to be inserted into the pipe joints and pipe end until the connector end of the contact, the pipe and the pipe joint are welded together, can save over, but the pipe size is strictly applicable to oil and gas as the medium pipeline system table 43 ~ 49 JB3878-1985Cone seal welded pipe jointOne end of the connecting pipe is provided with an outer cone surface, and a O shape sealing ring is matched with the inner cone surface of the joint body, and is screwed with the screw thread. The working pressure is 16 ~ 31.5MPa, the temperature - 25 to 80 DEG C for oil as medium piping system table 50 ~ 62 JB/T6381 ~ 6385-1992Withhold hose connectorThe installation is convenient, but a tightening process is added. 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 to 50 degrees Celsius; water below 80 degrees JB/ZQ4427 ~ 4428-1986
Q:PVC can the pipe joint be butted with the joint? How do I get it?
One is welding, the other is adhesive bonding, and the other is double headed thread connection
Q:Silicone gasket, rubber gasket, water pipe joint which is good?
Silicone gasket is also a rubber gasket, compared with the ordinary rubber gasket, it has better chemical stability
Q:Inside and outside the threaded joint, one end of the internal thread (G),
The cylindrical internal thread and the taper outer thread form a column / cone fit; the taper internal thread and the taper outer thread form the cone / cone matching.
Q:How to compile the welding technology of 12CrlMoVG header and pipe joint
(2) before welding, before welding, the pipe should be 30 degrees, and the inside and outside 15mm range of the pipe should be polished to be metallic. The pipe clearance is 1~3mm. When the actual clearance is too large, the transition layer shall be deposited on the side of the pipe groove. Set up temporary shelter facilities, strictly control the wind speed at the welding operation place, and the air hole is easy to generate because the wind speed is beyond a certain range.(3) the operation uses WST315 manual tungsten argon arc welding machine, the welder itself is equipped with high frequency arc striking device, and the high frequency arc striking can be adopted. The arc and arc electrode, such as arc too fast, easy to produce crater crack, so the operation will lead to the edge of the pool or parent material is thick, and then gradually reduced the pool slowly extinguish arc, and finally close the protective gas.
Q:Connect with stainless steel tube with 304 stainless steel clip type pipe joint,
Because it is clamping, used for steam to consider the impact of temperature, it is not recommended for toxic, harmful, medium pressure above the high temperature gas.
Q:The difference between expanding, clamping sleeve and welding pipe joint
Flaredfitting: flaredfitting medium: oil, water, gas and other non corrosive or corrosive medium pipe joint with steel pipe specifications and flexible pipe welding, has the characteristics of reliable connection, good sealing performance, so it is widely used in oil refining, chemical industry, light industry, textile, metallurgy, national defense, aviation, shipbuilding and other systems; also suitable for hydraulic transmission of various mechanical engineering, machine tools and other equipment pipeline.
Q:Hydraulic hose joint is spherical and cone sealing, threaded connection, what is the form of joint?
WREN we also do ultra high pressure joint (hydraulic joint) and all hydraulic wrenches, hydraulic pumps, etc., you can contact us to negotiate!
Q:What's the hydraulic pipe joint material?
Selection of pipe joints, the minimum is equal to the entire hydraulic system working state of the maximum working pressure setting the maximum working pressure for each joint, not only to consider the pump outlet pressure, also consider starting pressure relief valve. Therefore, in the design of complex hydraulic pipeline, the actual pressure is best measured by field measurements. The system operating pressure has been fixed, so the maximum working pressure of each selected pipe joint shall be checked.The maximum working pressure of the pipe joint can be changed by different sealing methods or according to the change of temperature: similarly, if the pipe joint chooses the elastic seal, it will get higher working pressure than the rigid seal.International standard set 4 times insurance coefficient, the reason is the practice of design thinking, the error of pipe joint device and equipment operation process may appear, the working condition of the system stability, in order to guarantee the system not paralyzed when in operation, so the insurance coefficient of the nominal pressure of the high.
Q:What do you mean by "s" in the standard of pipe joint?
In hydraulic couplings, the S denotes the heavy series, L denotes the light series, M denotes metric threads, and R stands for English threads
Our company has integrated equipment and processing capacities of machining, heat-treatment, surface treatment, and hot extruding. For human resources, we have 16 senior engineers, 16 engineers and technicians and 14 inspectors, and have advanced processing technology and experience in casing and tubing couplings, pup joints, tool joints and down hole tools. Quality of our products is stable and excellent.

1. Manufacturer Overview

Location Henan,China (Mainland)
Year Established 1999
Annual Output Value US$10 Million - US$50 Million
Main Markets 16.72% North America
16.67% South America
16.67% Eastern Europe
16.67% South Asia
16.67% Mid East
16.60% Southeast Asia
Company Certifications ISO9001

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin port,Shanghai port,Qingdao port
Export Percentage
No.of Employees in Trade Department 6-10 People
Language Spoken: English, Chinese
b)Factory Information  
Factory Size: 30,000-50,000 square meters
No. of Production Lines 2
Contract Manufacturing OEM Service Offered Buyer Label Offered
Product Price Range Low and/or Average