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
2 管道用紧固件及螺纹
2.1 紧固件
螺栓 bolt
六角头螺栓 hexagonal head bolt 方头螺栓 square head bolt 螺柱，双头螺栓 stud bolt 环头螺检 eye bolt
沉头螺栓 countersunk (head) screw 地脚螺栓 anchor bolt; foundation bolt 松紧螺旋扣（花篮螺丝） turnbuckle U形螺栓 U-bolt T形螺栓 T-bolt
圆头螺钉 round head bolt
机螺栓，机螺钉 maehine bolt 顶开螺栓，顶起螺栓 Jack screw 自攻螺钉 self tapping screw 膨胀螺栓 expansion bolt 粗制的 coarse
精制的 finished, fine 螺母 nut
六角螺母 hexagonal nut 方螺母 square nut 蝶形螺母 wing nut 扁螺母 flat nut 锁紧螺母 lock nut 垫圈 washer
平垫圈 plain washer 球面垫圈 spherical washer 弹簧垫圈 spring washer 方垫圈 square washer 斜垫圈 slant washer 销轴 pinned shan 销 pin
开口销 cotter pin 定位销 dowel pin 带孔销 pin with hole 圆锥销 taper pin 铆钉 rivet 键 key
2.2 螺纹