Steel pipe terminology
2013-11-22
TerminologyContent
Seamless elbow
An elbow processed from seamless steel pipes.
Welded elbow
An elbow formed and welded from steel plates.
Elbow
A pipe fitting that changes the direction of the pipeline.
Pipe fitting
Components used in a piping system for direct connection, turning, branching, changing diameter, and serving as ends, including elbows, tees, crosses, reducers, pipe clamps, internal and external threaded joints, unions, quick connectors, threaded short sections, reinforced pipe joints, pipe plugs, pipe caps, blind plates (excluding valves, flanges, fasteners, gaskets).
Vent pipe
A pipeline set up for venting at high points of pipelines or equipment.
Drainage pipe
A pipeline set up for draining at low points of pipelines or equipment.
Sampling pipe
A pipeline set up to extract media from pipelines or equipment for analysis and testing.
Pump anti-condensation pipeline
A small diameter pipeline that crosses between the shut-off valve and check valve on the pump outlet to prevent clogging by liquids that easily condense at room temperature.
Pump inlet balance pipeline
'A pipeline connecting the upper part of the pre-pump container with the high point of the pump inlet to prevent cavitation or balance pressure when transporting liquids in bubble point or vacuum state.
暖泵管道
为避免切换泵时，较高温度的液体急剧涌入备用泵内使泵受到损坏，在泵出口跨越切断阀与止回阀之间的一根小直径管道。
平衡液体管道
输送泡点状态下液体的管道
气液两相流管道
输送气液混相流体的管道。
SHE级管道
设计压力小于10.0MPa且设计温度高于或等于-29oC的无毒、非可燃介质的管道。
SHD级管道
设计温度低于-29oC的低温管道。
SHC级管道
管内为毒性程度为中度、轻度危害介质，或乙B类、丙类可燃介质管道。
SHB级管道
管内毒性程度为为极度危害苯、毒性程度为高度危害(丙烯腈、光气、二硫化碳和氟化氢除外）介质，或甲类、乙类可燃气体和甲A类液化烃、甲B类、乙A类可燃介质管道。
SHA级管道
管内为毒性程度为极度危害介质（苯除外）、毒性程度为高度危害的丙烯腈、光气、二硫化碳和氟化氢介质，或设计压力大于或等于10.0MPa介质的管道。
真空管道
管内绝对压力低于大气压力的管道。
高压管道
管内介质表压力大于10.0MPa的管道。
中压管道
管内介质表压力大于1.57至10.0MPa的管道。
低压管道
管内介质表压力为0至1.57MPa的管道。
公用工程管道
工艺管道以外的辅助性管道，包括水、蒸汽、压缩空气、惰性气体等的管道。
工艺管道
输送原料、中间物料、成品、催化剂、添加剂等工艺介质的管道。
挂越管路
挂在桥上等的管道。
跨越管道
架空通过铁路、公路、河、沟的管道。
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Shenyang Tengfei Iron Corporation
Shenyang Tengfei Steel Pipe Co., Ltd.
Address: No.6 A 3, No.13 Road, Economic and Technological Development Zone, Shenyang City, Liaoning Province
E-mail:tfwelcome@163.com
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