Standard OD Minimum length Pupil Bearing Weight OD Standard and Special N diameter surface kg mm special clearance mm Q widt b chamfered coupling mm mm couplings Wc 4 5 6 Standard Special W mm 82.5 35 2.38 coupling clearance mm 88.9 38.89 2.38 coupling 1 2 3 95.25 47.63 3.18 9 10 1.05 43.16 – 98.42 54.76 3.18 0.38 – 1.315 48.26 – 123.82 67.46 3.97 0.57 – 1.66 55.88 – 133.35 80.16 5.56 0.68 – 1.9 63.5 – 146.05 96.85 6.35 0.84 – 2-3/8 77.8 73.91 152.4 109.55 6.35 1.55 1.07 2-7/8 93.17 87.88 158.75 122.25 6.35 2.4 1.55 3-1/2 114.3 106.17 4.1 2.38 4 127 – 4.82 – 4-1/2 141.3 – 6.05 –

·1,All Coupling Stock is certified to API Standards by an independent 3rd party laboratory prior to coupling manufacturing.2,After machining all couplings undergo 100% thread inspection.3,Color Coding and Marking as per API Standard.Modified Couplings available from stock in 2-3/8”, 2-7/8” and 3-1/2’ J55 and L80.4,Special Beveled one or both ends on request.5,Extended Length Couplings in 2-3/8”, 2-7/8” and 3-1/2’ J55 available from stock, other sizes and materials on request.

Hengshui Weijia Petroleum Equipment Manufacturing Co., Ltd. was established in 2 0 0 9, located at Fuyang East Road, Ji zhou District, Heng shui City, He bei Province, close to Beijing Airport and Tianjin Port with convenient transportation and beautiful environment. It is a joint venture of Western Oilfield Materials Supply Co., Ltd. and Hengshui Yaotai Machinery Manufacturing Co., Ltd.

As a professional supplier of Tubing pup joint ,Casing pup joint,Tubing couplings, Casing couplings, Crossovers , Swages and other petroleum accessories.We have an excellent team, advanced production equipment, strict inspection procedures and specialized laboratories, as well as professional R & D technicians to meet customers’ different customization needs.In order to provide the best products and services, we have established a modern quality management system strictly in accordance with international standards.In addition, due to the huge overseas market, most of our products have passed A P I – 5 C T, I S O 9 0 0 1 quality system, I S O 1 4 0 0 1 environmental system, O H S A S 1 8 0 0 1 environmental system.At the same time, we also undertake O E M and O D M orders. If you have any new ideas for the product, please contact us. We look forward to working with friends from all over the world.

Q1: Are you trading company or manufacturer ?A1: We are factory.Q2: How long is your delivery time?A2: Generally it is 5-10 days if the goods are in stock.or it is within 30 days if the goods are not in stock,

it is according to quantity.Q3: What’s the main application of Casing and Tubing?A3: Casing and Tubing are widely used in oil pipe, gas pipe, oil field.Q4: What kind of type of end-finish can you offer?A4: For Tubing: Plain end, NU T&C, EU T&C, Integral Joint