Butt Weld Pipe Fittings
Precision engineered butt weld fittings for seamless pipe connections.
Tubing coupling is an oilfield drilling tools, mainly for tubing connections.
Tubing coupling mainly aims to solve the existing couplings easily generated due to fatigue fracture stress concentration problems.
Tubing is important to oil drilling equipment, and its main equipment includes drill, core pipe and casing, drill collars and drilling small diameter steel pipe and so on. Mainly used for oil well drilling and completion during drilling after wall support, in order to ensure the conduct and completion of the drilling process of the wells after the regular oil casing normal operation.
Tubing coupling structure is: tubing ends with the inner wall of the coupling connected to tapered threads, couplings and tubing ends of the body with the same thread pitch flat with threaded connect. A single taper threaded connection with relief tubing outer thread root stress concentration characteristics, not easy to produce fatigue fracture, connecting effect. Effectively prevent oil well tubing string broken off accidents.
API OCTG steel tubing and casing coupling for premium connection thread
API Coupling refers to the steel couplings that used in connecting casing pipe and tubing. Also known by OCTG coupling, it is usually manufactured in seamless type, material grade same with the pipe body (API 5CT K55/J55, N80, L80, P110 etc), same PSL or providing higher grades than requested. Same heat treatment also applicable, except there is an special requirements.
Casing coupling is a short pipe applied in connecting two casing pipes which have threads. The pipe coupling has internal threads machined to match the external thread of the long joints of casing. The two joints of casing pipes are screwed into opposite ends of the casing coupling. Through their strength can be normally made of the same grade of steel as the casing. All casing couplings are manufactured in accordance with API 5CT specification of the latest edition.
Tubing couplings are essential drilling tools in the oil field, mainly used to connect oil pipes. They address the issue of stress concentration, reducing the risk of cracking.
The threading design of tubing couplings ensures a strong and reliable connection, effectively preventing oil well string dropout accidents. The threading on the oil pipe ends and the inner wall of the tubing coupling match perfectly, providing a secure and durable connection that is resistant to cracking.
Any type of packing is available according to customer need to worldwide destinations.
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
