控制管路pilot line

　　泄油管路drain line

　　放氣管路bleed line

　　接頭fitting；connection

　　焊接式接頭welded fitting

　　擴口式接頭flared fitting

　　快換接頭quick release coupling

　　法蘭接頭flange connection

　　彎頭elbow

　　異徑接頭reducer fitting

　　流道flow pass

　　油口port

　　閉式油箱sealed reservoir

　　油箱容量reservoir fluid capacity

　　氣囊式蓄能器bladder accumulator

　　空氣污染air contamination

　　固體顆粒污染solid contamination

　　液體污染liquid contamination

　　空氣過濾器air filter

　　油霧氣lubricator

　　熱交換器heat exchanger

　　冷卻器cooler

　　加熱器heater

　　溫度控制器thermostat

　　消聲器silencer

　　雙筒過濾器duplex filter

　　過濾器壓降filter pressure drop

　　有效過濾面積effective filtration area

　　公稱過濾精度nominal filtration rating

　　壓潰壓力collapse pressure

　　填料密封packing seal

　　機械密封mechanical seal

　　徑向密封radial seal

　　旋轉密封rotary seal

　　活塞密封piston seal

　　活塞桿密封rod seal

　　防塵圈密封wiper seal；scraper

　　組合墊圈bonded washer

　　復合密封件composite seal

　　彈性密封件elastomer seal

　　丁腈橡膠nitrile butadiene rubber；NBR

　　聚四氟乙烯polytetrafluoroethene；PTFE

　　優先控制override control

　　壓力表pressure gauge

　　壓力傳感器electrical pressure transducer

　　壓差計differential pressure instrument

　　液位計liquid level measuring instrument

　　流量計flow meter

　　壓力開關pressure switch

　　脈沖發生器pulse generator

　　液壓泵站power station

　　空氣處理單元air conditioner unit

　　壓力控制回路pressure control circuit

　　安全回路safety circuit