Payment & Shipping Terms:
|Secondary Or Not:||Non-secondary||Application:||Oil Pipe|
|Technique:||Hot Rolled||Special Pipe:||API Pipe|
|Alloy Or Not:||Is Alloy|
The pup joint is a commonly used fitting in industrial pipe connection. According to different connections, it can be usually divided into thread and flange types. The threaded type can be further classified into two head external thread, single head external thread, and flat head external thread types. In addition, the product falls into tubing and casing types based on different uses.
This accessory for tubing is actually a short section of tubing. Compared with the tubing, it is just different in length. The product is manufactured in line with the API Specification 5CT, 5B and other related standards, and marked with the API logo. We can produce a variety of flat end and external upset tubing pup joints with J, N, L, and other steel grades and different specifications.
1. The pipe body enjoys large mechanical strength and good overall performance.
2. The thread is processed by dedicated CNC machine tools, which ensure high precision, reliable use, and long life.
3. The coupling adopts phosphating or copper plating, which guarantees good wear resistance.
Size: 2 3/8" - 20"
Material: J55, K55, N80, L80, P110, etc.
0.61m, 0.91m, 1.22m, 1.83m, 2.44m, 3.05m, 3.66m, Tolerance: ±0.076
2 Foot, 3 Foot, 4 Foot, 6 Foot, 8 Foot, 10 Foot, 12 Foot, Tolerance: ±3in
|Range 1||Range 2||Range 3|
|Total range length, inclusive||16.0 to 25.0||25.0 to 34.0||34.0 to 48.0|
|Range length for 95 % or more of carload (a)|
|Permissible variation, max.||6.0||5.0||6.0|
|Permissible length, min.||18.0||28.0||36.0|
|THREADED AND COUPLED TUBING AND CASING USED AS TUBING|
|Total range length, inclusive||20.0 to 24.0 b||28.0 to 32.0 c||38.0 to 42.0 d|
|Range length for 100 % of carload (a)|
|Permissible variation, max.||2.0||2.0||2.0|
|INTEGRAL TUBING CONNECTIONS (including IJ/PE and IJ/SF)|
|Total range length, inclusive||20.0 to 26.0 b||28.0 to 34.0||38.0 to 45.0|
|Range length for 100 % of carload a||2.0||2.0||2.0|
|Permissible variation, max.|
|PUP JOINTS||Lengths 2, 3, 4, 6, 8, 10 and 12 e Tolerance ± 3 in|
|a Carload tolerances shall not apply to order items of less than 40 000 lb of pipe. For any carload of 40 000 lb or more of pipe that is shipped to the final destination without transfer or removal from the car, the tolerance shall apply to each car. For any order item consisting of more than 40 000 lb of pipe that is shipped from the manufacturer's facility by rail, but not to the final destination, the carload tolerance shall apply to the overall quantity of pipe shipped on the order item, but not to the individual carloads.
b By agreement between purchaser and manufacturer the maximum length may be increased to 28.0 ft.
c By agreement between purchaser and manufacturer the maximum length may be increased to 34.0 ft.
d By agreement between purchaser and manufacturer, the maximum length may be increased to 45.0 ft.
e 2 ft pup joints may be furnished up to 3 ft long by agreement between purchaser and manufacturer, and lengths other than those listed may be furnished by agreement between purchaser and manufacturer.
Standard drift size
|Product and Label 1||Standard drift mandrel size min.|
|< 9-5/8||152||d - 3,18|
|W 9-5/8 to u 13-3/8||305||d - 3,97|
|> 13-3/8||305||d - 4,76|
|Tubing a, b|
|u 2-7/8||1 067||d - 2,38|
|> 2-7/8 to u 8-5/8||1 067||d - 3,18|
|> 8-5/8 to < 10-3/4||1 067||d - 3,97|
|a Integral-joint tubing shall be tested before upsetting with a drift mandrel as shown, and shall also be drift tested at the pin end, after upsetting, with a cylindrical drift mandrel 1 067 mm in length and diu - 0,38 mm in diameter (see Table C. 26, Col. 6 for diu of API Spec. 5CT ).
b Casing sizes larger than Label 1: 4-1/2 but smaller than Label 1: 10-3/4 specified by the purchaser to be used in tubing service shall be marked as specified in Clause 11 of API Spec. 5CT.
As a professional pup joint manufacturer and supplier in China, our company provides a wide range of products that includes API casing, screen pipe, API coupling, API tubing, and more.