倒密封 back seal
压力密封的阀盖 pressure-tight bonnet
动力操纵器 powered operator
电动操纵器 electric motor operator
气动操纵器 pneumatic operator
液压操纵器 hydraulic operator
快速操纵器 quick-acting operator
滑动阀杆 sliding stem
正齿轮传动 spur gear operated
伞齿轮传动 bevel gear operated
扳手操作 wrench operated
链轮 chain wheel
手轮 hand wheel
手柄 hand lever (handle)
气缸（或液压缸）操纵的 cylinder operated
链条操纵的 chain operated
等径孔道 full bore; full port
异径孔道 reducing bore, reduced port,venturi port
短型 short pattern
紧凑型（小型） compact type
笼式环 lantern ring
压盖 gland
阀杆填料 stem packing
阀盖垫片 bonnet gasket
升杆式（明杆） rising stem (RS)
非升杆式（暗杆） non-rising stem (NRS)
指示器/限位器 indicator/stopper
注油器 grease injector
可更换的阀座环 renewable seat ring

1.6.2 常用阀

(1）闸阀 gate valve
平行双闸板 double disc parallel seat
开口楔形闸板 split wedge
挠性整体楔形闸扳 flexible solid wedge
整体楔形闸板 solid wedge
塞型闸阀 plug gate valve
直通型闸阀 through conduit gate valve
(2) 截止阀 globe valve
球心型阀盘 globe type disc
塞型阀盘 plug type disc
可转动的阀盘 swivel disc
(3) 节流闪阀 throttle valve
针阀 needle valve
(4) 角阀 angle valve
(5) Y型阀（Y 型阀体截止阀） Y-valve (Y-body globe valve)
(6) 球阀 ball valve
三通球阀 3-way ball valve
装有底轴的 trunnion mounted
耐火型 fire safe type
浮动球型 floating ball type
防脱出阀杆 blowout proof stem
(7) 蝶阀 butterfly valve
对夹式（薄片型） wafer type
凸耳式 lug type
偏心阀板蝶阀 offset disc burerfly valve; eccentric butterfly valve
斜阀盘蝶阀 canted disc butterfly valve
连杆式蝶阀 link butterfly valve
8) 柱塞阀 piston type valve
(9) 旋塞阀 plug valve
三通旋塞阀 three-way plug valve
四通旋塞阀 four-way plug valve
旋塞 cock
衬套旋塞 sleeve cock
(10) 隔膜阀 diaphragm valve
橡胶衬里隔膜阀 rubber lined diaphragm valve
直通式隔膜阀 straight way diaphragm valve
堰式隔膜阀 weir diaphragm valve
(11) 夹紧式胶管阀 pinch valve（用于泥浆、粉尘等）
(12) 止回阀 check valve
升降式止回阀 lift check valve
旋启式止回阀 swing check valve, flap check valve
落球式止回阀 ball check valve
弹簧球式止回阀 spring ball check valve
双板对夹式止回阀 dual plate wafer type check valve
无撞击声止回阀 non-slam cheek valve
底阀 foot valve
切断式止回阀 stop check valve; non-return valve
活塞式止回阀 piston check valve
斜翻盘止回阀 tilting disc check valve
蝶式止回阀 butterfly check valve

1.6.3 其它用途的阀

安全泄气阀 safety valve (SV)
安全泄液阀 relief valve (RV)
安全泄压阀 safety relief valve
杠杆重锤式 lever and weight type
引导阀操纵的安全泄气阀 pilot operated safety valve
复式安全泄气阀 twin type safety valve
罐底排污阀 flush-bottom tank valve
电磁阀 solenoid valve, solenoid operated valve
电动阀 electrically operated valve, electric-motor operated valve
气动阀 pneumatic operated valve
低温用阀 cryogenic service valve
蒸汽疏水阀 steam trap
机械式疏水阎 mechanical trap
浮桶式疏水阀 open bucket trap, open top bucket trap
浮球式疏水阀 float trap
倒吊桶式疏水阀 inverted bucket trap
自由浮球式疏水阀 loose float trap