304/316 Stainless Steel Pipe Fitting NPT Thread Sleeve Coupling

Description:
Couplings are short lengths of pipe used to connect 2 joints of tubing or casing.
They come with painted colour codes on their external surface to indicate their grades.
Couplings are manufactured according to API 5CT and 5B specifications.


Features:

1. API 5CT Certificate.
2. 100 % customer satisfaction for Quality and Reliability.
3. Superior Plating, Painting and Packaging Processes.
4. After machining all couplings undergo 100% thread inspection.
5. Colour Coding and Marking as per API Standard.
6. MTRs available for all coupling.

Tubing Coupling

Pipe O.D.
1.900, 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2 in

Grade
J-55, C-75, L-80, N-80, C-95, P-110

Thread Connection 
EUE, NUE

Option
Electro-zinc plated
Phosphorization

Standard
API 5CT, API 5B

Casing Coupling

Pipe O.D.
4-1/2, 5, 5-1/2, 6-5/8, 7, 7-5/8, 8-5/8, 9-5/8, 10-3/4, 11-3/4, 13-3/8, 16, 18-5/8, 20 in

Grade
H-40, J-55, K-55, C-75, L-80, N-80, C-95, P-110, L80-13CR

Thread Connection
BTC, STC, LTC

Option
Electro-zinc plated
Phosphorization

Standard
API 5CT, API 5B

Coupling pipe grade identification by paint color

Grade
Color Coding (Painted Outside)

H-40
Black

J-55 or K-55
Green

N-80
Red

M-65 or L-80
Red with one Brown Band

L-80 Type 9CR
Red with two Yellow Bands

L-80 Type 13CR
Red with one Yellow Band

C-90 Type 1
Purple

C-90 Type 2
Purple with one Yellow Band

T-95 Type 1
Silver

T-95 Type 2
Silver with one Yellow Band

C-95
Brown

P-110
White

Q-125 Type 1
Orange

Q-125 Type 2
Orange with one Yellow Band

Q-125 Type 3
Orange with one Green Band

Q-125 Type 4
Orange with one Brown Band

 

Why you need to choose lake petro ?
As a professional oil and gas service company, Lake petro has many good experience is selling and serve for the oilfield
industies,quality is the culture of the company, we provide the API and BV certifed products for customer.
Can you make us the best quality products as well as a good price.
Yes. we can give you really quality products with best price,we have a better understanding of Chinese market, with us your moeny
will be safe.
What is special compare with other company ?
First, we provide the quality products, with BV and API certified, at the same time, we will provide the customer with the best
service after sale, any time any where.