Name:Couplings
Std Ref:API 5CT
Grade:J55,K55,N80,L80,C90,P110 ,Q125

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 sizeType of ThreadO.D*L(mm)Weight(kg) Tubing Coupling2-3/8"NUE73.02*107.951.28 2-3/8"EUE77.80*123.821.55 2-7/8"NUE 88.90*130.182.34 2-7/8"EUE93.17*130.352.4 3-1/2"NUE107.95*142.883.17 3-1/2"EUE114.30*146.054.1 4"NUE120.65*146.054.35 4"EUE127.00*152.404.82 4-1/2"NUE132.08*155.584.89 4-1/2"EUE141.30*158.756.05 Casing Coupling4-1/2"STC127.00*158.755.23 4-1/2"LTC127.00*177.804.15 4-1/2"BTC127.00*225.424.55 5"STC141.30*165.104.66 5"LTC141.30*196.855.75 5"BTC141.30*231.785.85 5-1/2"STC153.67*172.455.23 5-1/2"LTC153.67*203.206.42 5-1/2"STC153.67*234.956.36 6-5/8"STC187.71*184.159.12 6-5/8"LTC187.71*222.2511.34 6-5/8"STC187.71*244.4811.01 7"STC194.46*187.158.39 7"LTC194.46*228.6010.83 7"STC194.46*254.0010.54 7-5/8"STC215.90*190.5012.3 7-5/8"LTC215.90*234.9515.63 7-5/8"STC215.90*263.5215.82 8-5/8"STC244.48*196.8516.23 8-5/8"LTC244.48*254.0021.67 8-5/8"STC244.48*269.8820.86 9-5/8"STC269.88*196.8518.63 9-5/8"LTC269.88*266.7025.45 9-5/8"STC269.88*269.8823.16 10-3/4"STC298.45*203.2020.78 10-3/4"STC298.45*269.8825.74 11-3/4"STC323.85*203.2022.64 11-3/4"BTC323.85*269.8828.03 13-3/8"STC365.12*203.2025.66 13-3/8"BTC365.12*269.8831.77 1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110 2.We also supply permium thread products by customer's request 3.Size: tubing coupling from 1.9" to 4-1/2",Casing coupling fro4-1/2"to 13-3/8" 4.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling). 5.Surface treatment: Whole phosphating, or inside phosphating and outside coating 6.Packing: By carton, wooden case, wooden pallet, or by requirements of customers

      Changzhou Oilfield Petroleum Equipment Co., Ltd. is located in Changzhou high tech Industrial Development Zone, with the advantage be richly endowed by nature. It is east to Shanghai, Wuxi, West Nanjing, North pillow Yangtze River, has the lead in all directions of traffic advantage, the Beijing Shanghai High-speed Rail, Shanghai Nanjing Expressway through the city, west of Changzhou airport, traffic is very convenient, is apart from the Shanghai port only 150 kilometers.

      This is a company for many years engaged in the special petroleum pipe production and sales company, main products include oil well pipe (casing tubing, drill pipe and line pipe) and its accessories (Coupling, drill pipe and drill pipe joints), all kinds of seamless steel pipe and coupling stock. Tubing and product specifications: 1"9 ~～20";; steel grade: H40, J55, N80, K55, C95 (R95), T95, P110, Q125 and some high collapsing strength, non standard steel grade oil casing corrosion and collar, for example: 80S, 95SS, 110TS, SC, LC, BC type of thread, special button and buckle type production according to customer requirements; drill pipe specifications: 2-3 / 8 ～6-5 / 8"; and some less than 2 - 3 / 8"; the product specifications, including direct type small drill pipe. Grade: E75, X95, G105, S135; pipeline products range: 1 / 4" ～ 12-3 / 4";;;, steel grade: B, X42, X52, X56, X60, X65, X70; PSL1; PSL2; Product grades: drill pipe: NC26, NC31, NC38, NC46, NC50, 5-1/2FH, 6-5/8FH etc.

     We have a variety of senior technical personnel and excellent technical staff, with CNC sophisticated processing equipment (10 Mori Seiki machine; 2 Danuobate machine) and a full set of test equipment, pipe processing experience is rich in oil well. Annual output of various coupling of 2800000 or more, 80000 of drill pipe joint. With the pursuit of the cause and the courage to challenge themselves and forever, my company's products have been widely applied to various fields ( Daqing, Xinjiang and Changqing Oilfield), some products are also exported to Canada, the United Arab Emirates, USA, Singapore, Russia, Turkey and other countries and regions, by the favor and praise of users at home and abroad the. We will work with you hand in hand together, create a better tomorrow.

     Our aim is: people-oriented, scientific management, quality first, service first, mutual benefit and win-win. Warmly welcome friends from all circles to visit and give guidance, and seek common development.