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 恒温式疏水阀 thermostatic trap
金属膨胀式蒸汽疏水阀 metal expansion steam trap 液体膨胀式蒸汽疏水阀 liquid expansion steam trap
双金属膨胀式蒸汽疏水阀 bimetallic expansion steam trap 压力平衡式恒温疏水阀 balanced pressure thermostatic trap 热动力式疏水阀 thermodynamic trap 脉冲式蒸汽疏水阀 impulse steam trap
放气阀（自动放气阀） air vent valve (automatic air vent valve) （疏水阀用） 平板式滑动闸阀 slab type sliding gate valve 盖阀 flat valve
换向阀 diverting valve, reversing valve 热膨胀阀 thermo expansion valve 自动关闭阀 self-closing gate valve 自动排液阀 self-draining valve 管道盲板阀 line-blind valve
挤压阀 squeeze valve（用于泥浆及粉尘等） 呼吸阀 breather valve 风门、挡板 damper
减压阀 pressure reducing valve, reducing valve 控制阀 control valve
膜式控制阀 diaphragm operated control valve 执行机构 actuator
背压调节阀 back pressure regulating valve
差压调节阀 differential pressure regulating valve 压力比例调节阀 pressure ratio regulating valve
1.6.4 未指明结构（或阀型）的阀
切断阀 block valve; shut-off valve; stop valve 调节阀 regulating valve 快开阀 quick opening valve 快闭阀 quick closing valve 隔断阀 isolating valve 三通阀 three way valve 夹套阔 jacketed valve
非旋转式阀 non-rotary valve
排污阀 blowdown valve 集液排放阀 drip valve 排液阀 drain valve 放空阀 vent valve
卸载阀 unloading valve 排出阀 discharge valve 吸入阀 suction valve 多通路阀 multiport valve 取样阀 sampling valve
手动阀 hand-operated valve; manually operated valve 锻造阀 forged valve 铸造阀 cast valve
（水）龙头 bibb; bib; faucet 抽出液阀（小阀） bleed valve 旁路阀 by-pass valve 软管阀 hose valve 混合阀 mixing valve
破真空阀 vacuum breaker 冲洗阀 flush valve
第一道阀；根部阀 primary valve 根部阀 root valve 总管阀 header valve
事故切断阀 emergency valve
1.7 管道特殊件 Piping Specialty
1.7.1 管道特殊件（组件）
粗滤器 strainer 过滤器 filter
临时粗滤器（锥型） temporary strainer (cone type) y 型粗滤器 y-type strainer T型粗滤器 T-type strainer 永久过滤器 permanent filter 丝网粗滤器 gauze strainer
洗眼器及淋浴器 eye washer and shower 视镜 sight glass
阻火器 flame arrester 喷嘴；喷头 spray nozzle 取样冷却器 sample cooler 消声器 silencer
膨胀节 expansion joint
波纹膨胀节 bellow expansion joint 单波 single bellow
双波 double bellow 多波 multiple bellow
压力平衡式膨胀节 pressure balanced expansion 带铰链膨胀节 hinged expansion joint
轴向位移型膨胀节 axial movement type expansion joint 自均衡膨胀节（外加强环）self-equalizing expansion joint 带接杆膨胀节 tied expansion joint
万向型膨胀节 universal type expansion joint 球形补偿器 ball type expansion joint
填函式补偿器 slip type (packed type) expansion joint 单向滑动填料函补偿器 single actionpacked slip joint
1.7.2 管道特殊元件Piping Special Element
软管接头 hose connection (HC) 快速接头 quick coupling 金属软管 metal hose 橡胶管 rubber hose 挠性管 flexible tube
鞍形补强板 reinforcing saddles 补强板 reinforcement pad 特殊法兰 special flange 漏斗 funnel 排液环 drip ring
排液漏斗 drain funnel 插板 blank 垫环 spacer
8字盲板 spectacle blind; figure 8 blind 限流孔板 restriction orifice 爆破片 rupture disk
法兰盖贴面 protective disc
费托立克接头 victaulic coupling
1.8 端部连接 End Connection
法兰端 flanged end
坡口端 beveled end (BE) 对焊端 butt welded end 平端 plain end (PE)
承插焊端 socket welding end 螺纹端 threaded end (TE) 承口 bell end
焊接端 welding end
法兰连接（接头） flanged joint
对焊连接（接头） butt welded joint
螺纹连接，管螺纹连接 threaded joint, pipe threaded joint 锥管螺纹密封焊连接 seal-welded taper pipe threaded joint 承插焊连接（接头） socket welded joint 承插连接（接头） bell and spigot joint 环垫接头 ring joint (RJ) 万向接头 universal joint
软钎焊连接（接头） soldered joint 搭接接头，松套连接 lapped joint
外侧厚度切斜角 bevel for outside thickncss 内侧厚度切斜角 bevel for inside thickness
内外侧厚度切斜角 bevel for combined thickness 法兰式的 flanged (FLGD) 对焊的 butt welded (BW) 螺纹的 threaded (THD)
承插焊的 socket welded (SW) 小端为平的 small end plain (SEP) 大端为平的 large end plain (LEP) 两端平 both ends plain (BEP)
小端带螺纹 small end thread (SET) 大端带螺纹 large end thread (LET) 两端带螺纹 both end thread (BET) 一端带螺纹 one end thread (OET) 支管连接 branch connection
焊接支管 branch pipe welded directly to the run pipe
1 管道组成件 Piping components
1.1 管子 Pipe
管子(按照配管标准规格制造的) pipe
管子(不按配管标准规格制造的其他用管) tube 钢管 steel pipe 铸铁管 cast iron pipe 衬里管 lined pipe 复合管 clad pipe
碳钢管 carbon steel pipe 合金钢管 alloy steel pipe 不锈钢 stainless steel pipe
奥氏体不锈钢管 austenitic stainless steel pipe 铁合金钢管 ferritic alloy steel pipe 轧制钢管 wrought-steel pipe 锻铁管 wrought-iron pipe
无缝钢管 seamless (SMLS) steel pipe 焊接钢管 welded steel pipe
电阻焊钢管 electric-resistance welded steel pipe
电熔（弧）焊钢板卷管 electric-fusion (arc)-welded steel-plate pipe 螺旋焊接钢管 spiral welded steel pipe 镀锌钢管 galvanized steel pipe
热轧无缝钢管 hot-rolling seamless pipe 冷拔无缝钢管 cold-drawing seamless pipe 水煤气钢管 water-gas steel pipe 塑料管 plastic pipe 玻璃管 glass tube 橡胶管 rubber tube
直管 run pipe; straight pipe
1.2 管件 Fitting
弯头 elbow
异径弯头 reducing elbow 带支座弯头 base elbow k半径弯头 long radius elbow 短半径弯头 short radius elbow 长半径180°弯头 long radius return 短半径180°弯头 short radius return
带侧向口的弯头（右向或左向） side outlet elbow (right hand or left hand) 双支管弯头（ 形） double branch elbow 三通 tee