Oil Tubing and Casing Couplings

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China Main Port
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TT or LC
Min Order Qty:
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:Will the moving angle of the air conditioner indoor be harmful to the connecting pipe joint?
Rest assured that the cooling pipes of the air conditioner are all made of copper pipes. No hard bending will cause great impact on them
Q:How do you disconnect the PVC pipe joint that has been glued?
A sticky PVC pipe joint is not normally open. Only cut off and re connect.Do you know?
Q:What do you mean by the next connection in the pipe connection? How do you use it?
The difference with the common joint is that the thread on one side is longer, and the next joint is fixed to the board by the locking nut
Q:How about the water pipe fittings and millimeters?20mm is 425mm is 6Why
20mm is not a scientific argument.Should be the plastic pipe, the nominal outer diameter of DN20 plastic pipe, only corresponds to 4 points of the metal pipe threadThree,If it is a metal tube, it should be nominal diameter Dn15, and the corresponding English pipe thread is 6
Q:What is the size of the PVC pipe joint?
The molecular weight of PVC in industrial production is generally in the range of 5~12 million, with great polydispersity, and the molecular weight increases with the decrease of polymerization temperature. Without fixed melting point, 80~85 began to soften at 130 degrees C and became viscoelastic at 160~180. Its tensile strength is about 60MPa, the impact strength is 5~10kJ/m2, and it has excellent dielectric properties. The stability of the light and heat is poor, at 100 degrees above or after a long time of sunlight exposure, it will be decomposed and hydrogen chloride, and automatically catalytic decomposition, causing discoloration
Q:What's the hydraulic pipe joint material?
Chemical equipment piping usually walks a variety of corrosive fluids, the need for frequent use of solvent or water rinse. Therefore, the general chemical line must be stainless steel.While thinking about medium corrosion. We should consider the relation between pipe seal and medium. Ding Qing rubber is commonly used in hydraulic systems because it is miscible with ordinary hydraulic oils. Ding Qing rubber at a certain temperature, but also with the synthesis of acetaldehyde, sugar chemical liquid (HEPG) and the proposed plant in liquid and compatibility, nitrile rubber (NBR) is not suitable under high temperature and acidic medium, benzene or synthetic oil, then should use fluorine rubber (FKM), on the contrary, methane and refrigeration only with ammonia NBR (NBR) miscible, so most chemical stainless steel pipeline are rigid seal.
Q:What are the installation requirements of the card sleeve joint?
The ends of the pipe shall be flush. The pipe should be flush in sawing grinding wheel and other tools, and burr cleaning and high pressure air blowing after use.When installing, the coaxiality of pipe and joint body should be kept as far as possible. If the pipe deflection is too large, it will cause sealing failure.The pre assembly force should not be too large. The inner blade of the clamping sleeve is just inserted into the outer wall of the pipe, and the clamping sleeve should not be deformed obviously. When the pipeline connection, and then according to the specified tightening force assembly. The tightening force of the phi 6-10mm card sleeve is 64-115N, Phi 16mmr 259N, Phi 18mm is 450N. If the sleeve is badly deformed at pre assembly, it will lose its sealing effect.(2) prohibit adding sealant and other fillers. In order to obtain better sealing effect, the sealant is coated with sealant, and the sealant is poured into the hydraulic system, causing the hydraulic components, such as damping holes, blocked and so on.(3) when connecting the pipe, the pipe should have enough deformation allowance to avoid the tensile stress of the pipe.(4) when connecting the pipeline, it should be avoided to be subjected to lateral force; the lateral force will cause the seal to be too lax.
Q:How do I distinguish the rigid clamp joint and the flexible clamp joint from the outward appearance?
The connecting bolts are different, and the flex is 2 larger than the rigidity (with 159 clamps as an example)The two semicircle butt joint is different, the flexible clamp is butt joint, and the rigid clamp is embedded butt joint
Q:What does flaring pipe joint mean?
To match the cone of the joint, although the processing is troublesome, the sealing is reliable. In addition, the use of copper tubes in general, the expansion is relatively easy.
Q:Hydraulic hose joint is spherical and cone sealing, threaded connection, what is the form of joint?
UNF often used to transport water (high temperature), the imperial teeth often used to transport oil (high pressure).
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