节流：throttling
工作孔：oriffice
分配阀：distribution valve
液压分配阀、配液阀：Hydraulic distribution valve
气压分配阀、配气阀：pneumatic distribution valve
（液压）蓄压器：Hydraulic accumulator
重锤蓄压器：Weighted hydraulic accumulator
弹簧蓄压器：Spring-loaded hydraulic accumulator
管路、管道：pipeline
管子：Pipe
接管零件、管件：Pipe fitting
管节：Pipe coupling
弯头：Elbow
三通管：Tee
四通管：cross
管堵（塞）、外丝堵、螺塞：Male pipe plug
堵盖：Bonnet
鞍形接头、交叉接头：Cross-over(saddle)
内接头、螺纹接头：Shoulder nipple
接管螺母、接头螺母：Collar nut
旋入接头：Threaded bushing
中间接头：Union joint
接管：Union nipple
软管：Hose