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China, Chinese High-Quality API 5CT Casing Coupling for Oil Industry1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Cementing ToolAPI 5CT Tubing and Casing CouplingTubing Coupling
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
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Product Description API 5CT CouplingSteel pipe couplings are essential components in the oil and gas industry, acting as short pipes or tubes with threads on both ends. These indispensable fittings connect pipelines effortlessly, offering the distinct advantage of simple pipeline maintenance and swift replacement of damaged sections, ensuring uninterrupted operations.API Couplings are specialized steel connectors designed to join casing and tubing pipes seamlessly. Known as OCTG couplings, they are typically crafted in a seamless manner, using material grades that match or exceed the pipe body such as API 5CT K55/J55, N80, L80, and P110. These couplings undergo the same rigorous heat treatment as the pipes unless specific custom requirements necessitate otherwise.Typically, tubing couplings have a maximum outer diameter of 4 1/2 inches, perfectly suited for drilling operations where they house the sucker rod for oil extraction. These couplings are more varied and robust than their casing counterparts, with the preferred choice being the thicken type upset couplings, both internal and external, known for their enhanced performance. EUE couplingThis coupling, revered in tubing connections, is hailed for its superior performance. Tubing featuring EU end (EUE) coupling is also referred to as UPTBG. Its design with a thickened (upset) end ensures improved connecting stress compared to buttress couplings. Alternatively, buttress couplings maintain equal thickness with the pipe body and are referred to as NU end (NUE) tubing or TBG.The innovative design of the oil tubing coupling addresses the critical issue of fatigue fractures, commonly caused by stress concentration. With a tapered thread connection to the tubing's interior wall and a matching thread pitch flat connection, this coupling effectively minimizes fracture risks, providing robust connections that significantly reduce the likelihood of oil well pipe string breaks.Tubing Pipe Outside Diameter(In)Tubing Pipe Outside Diameter(mm)Coupling Outside Diameter(mm)Minimum Length(mm)Diameter Of Recess(mm)Width of BearingFace Regular (mm)Max Bearing Face Diameter (mm)Mass(Kg)NUEEUENUEEUENUEEUENUEEUENUEEUENUEEUERegularSpecialClearanceRegular with special bevelSpecialClearanceRegularSpecialClearance1.948.2655.8863.50--95.2598.4249.8654.761.593.1852.0758.34--0.560.84--2 3/860.3273.0277.8073.91107.95123.8261.9367.464.763.9766.6871.8369.901.281.551.072 7/873.0288.9093.1787.88130.18133.3574.6380.164.765.5680.9885.8883.242.342.401.553 1/288.90107.95114.30106.17142.88146.0590.5096.854.766.3598.42104.78100.713.714.102.384101.60120.65127.00--146.05152.40103.20109.554.766.35111.12117.48--4.354.82--4 1/2114.30132.08141.30--155.58158.75115.90122.254.766.35123.19130.96--4.896.05--Casing couplingCasing couplings are essential for dimensions exceeding 4 1/2 inches. Unlike tubing couplings, they do not require thickening (Non-upset), resulting in various types such as:Round thread ? LTC/LC: Long round thread casing coupling? STC/SC: Short round thread casing couplingButtress thread ? BTC/BC: Buttress thread casing couplingAll three types share the same pipe body thickness, differing only in length, providing versatility and reliability for diverse applications.The oil casing coupling is indispensable for connecting two casings. This coupling is manufactured using the same precision as seamless pipes. The steel pipe ends feature internal threads for secure connections between the upper and lower casing. Ensuring airtight joint integrity, the precision of screw threading is meticulously maintained to high standards.The oil casing coupling is indispensable for connecting two casings. This coupling is manufactured using the same precision as seamless pipes. The steel pipe ends feature internal threads for secure connections between the upper and lower casing. Ensuring airtight joint integrity, the precision of screw threading is meticulously maintained to high standards.Casing Pipe Outside Diameter(In)Casing Pipe Outside Diameter(mm)Coupling Outside Diameter(mm)Minimum Length(mm)Diameter Of Recess(mm)Width of BearingFace Regular (mm)Mass(Kg) Round(LTC/STC)BTCRoundBTCRound(LTC/STC)BTCRound(LTC/STC)BTCRoundBTC RegularSpecial ClearanceSTCLTC STCLTCRegularSpecial Clearance4 1/2114.30133.35133.35123.82158.75177.80225.42116.68117.867.146.355.245.966.893.485127.00147.32147.32136.52165.10196.85231.78129.38130.567.147.146.437.868.384.005 1/2139.70160.02160.02149.22171.45203.20234.95142.08143.266.357.147.348.929.304.476 5/8168.28187.71187.71177.80184.15222.25244.48170.66171.836.356.359.1211.3411.015.657177.80200.03200.03187.32184.15228.60254.00180.18181.367.947.9410.8813.9213.986.287 5/8193.68215.90215.90206.38190.50234.95263.52197.64197.235.567.9412.1615.6315.829.298 5/8219.08244.48244.48231.78196.85254.00269.88223.04222.636.359.5215.6221.6720.8610.809 5/8244.48269.88269.88257.18196.85266.70269.88248.44248.036.359.5217.8525.4523.1612.0210 3/4273.05298.45298.45285.75203.20--269.88277.02276.616.359.5220.58--25.7413.3911 3/4298.45323.85323.85--203.20--269.88302.42302.016.359.5222.43--28.03--13 3/8339.72365.12365.12--203.20--269.88343.69343.285.569.5225.42--31.77--16406.40431.80431.80--228.60--269.88411.96410.315.569.5234.33--40.28--18 5/8473.08508.00508.00--228.60--269.88478.63476.995.569.5253.33--62.68--20508.00533.40533.40--228.60292.10269.88513.56511.915.569.5242.8156.9850.10--Company Profile
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