阀门部件中英文对照

1、阀门部件中英文对照valvevalve deck platevalve platevalve deck plate type piston pumpvalve plate type piston pumpDiscvalve operating rodvalve seat recessvalve gridvalve positionervalve stopvalve tail rodvalve guidebonnetbonnet bushbonnet gasketstemvalve rodvalve spindleDimmension of valve stem endstem ringYoke

2、 bushing Yoke nutstem packingDimension of valve stem headvalve springvalve spring platevalve-controlled hydraulic ramvalve yokeValvevalve bandle setValves and Fittingsvalve packingvalve handlediscvalve discDiscvalve ballvalve driving armvalve motion armvalve type pistonvalve type bucketvalve box typ

3、e piston pump阀室式活塞泵（美）valve pot type piston pump阀抬起装置valve lifting device阀体body阀体valvebody阀箱valvebox阀箱valvecage阀箱valvechest阀箱；阀限位器valve guard阀箱盖cover for valve box阀箱盖valve box cover阀箱式活塞泵（美）turret type piston pump阀形活塞泵valve type piston pump阀座Seat ring阀座valve carrier阀座valve seat（bodyseat）阀座；阀盘valve s

4、eat阀座环 seat ring阀座密封嵌条sealing strip for valve seat法兰 flange法兰堵头blind flange法兰端 flange end法兰接头flange joint法兰连接紧固件（双头螺栓和螺帽）flange bolting法兰密封面，法兰面flange facing法兰面加工flange facing finish法兰球阀Flange Ball Valves翻板阀Flap反冲盘Disc holder反向作用式减压阀Reverse acting reducing valve反向作用式减压阀Reverse acting reducing valve放

5、空阀emptying valve放气阀air vent valve;ventvalve放气阀；排气阀air evacuation valve放泄阀escape valve分置阀室式活塞泵separate valve box type piston pump分置阀室式活塞泵（美）side pot type piston pump封闭式Seal type浮动式球阀Float ball valve浮球Ball float浮球阀Float Valve浮球式疏水阀Ball float steam trap浮球式疏水阀Free Float Type Steam Trap浮桶Bucket float浮桶式疏

6、水阀Open bucket steam trap辅助（副）阀Auxiliary valves负荷率Rate of load condensate附加背压力Superimposed back pressure复位弹簧Returnning spring杠杆式Lever type杠杆式安全阀Lever and weight loaded safety valve杠杆式减压阀Lever reducing valve高温阀门High temperature valve高压阀门High pressure valve格兰密封gland隔离阀isolating valve隔膜Diaphragm隔膜阀diaph

7、ragm valve隔膜式控制阀diaphragm operated comtrol valve工作背压Operating back pressure工作温度Operating temperature工作温度Working temperature工作压差Operting differential pressure工作压力Operating pressure工作压力Working pressure公称通径Nominal diameter公称压力Nominal pressure固定式球阀Fixed ball valve关闭压力Lockup pressure关阀过冷度Subcooled temper

8、ature of close valve关阀温度Closing valve temperature管道安全阀Piping Safety Valves过冷度 Subcoold temperature过流阀（或节流阀） Restrictor Valves喉径Throat diameter滑阀slide valve滑阀式回转活塞泵rotary piston pump with slide gate滑阀型转子泵eccentric rotary pump with sliding sleeve环形阀annular valve环形阀double beat valve换向阀selector valve换向阀

9、shuttle valve回转滑阀活塞泵piston pump with rotary gate回座压力Re-seating pressure of a safety valve活塞昵减压阀Piston reducing valve活塞式阀piston valve活塞式阀；柱塞式阀plunger valve活塞式减压阀Piston reducing valve减速阀 Deceleration valves减压比Pressure reducing ratio减压阀pressure reducing valve浆液阀Parallel Slide Valves角阀Angle Valve角阀isola

10、tion valveangle configuration角式Angie type角式节流阀Angle Throttle Valves角式截止阀Angle Stop valves铰链阀；片状阀flapper valve节流阀throttle valve节流阀choke valve节流阀；节流throttle结构长度Face-to-face dimension ;End-to-end dimension; Face-to-centre dimension结构形式Type of construction截止阀Globe valve截止阀Shut-off Valve截止阀；关断阀shut-off v

11、alve截止式隔膜阀Globe diaphragm valve紧急切断阀Emergeny Cut-off Valves进气阀 air intake valve进水阀；进口阀门inlet valve静态特性Static characteristics静态特性偏差Static characteristicsderivation开阀过冷度Subcooled temperatureof open valve开阀温度Opening valve temperature开启高度Lift壳体试验Shell test壳体试验压力Seal test pressure空气阀门Air valves快速排污阀Quick

12、 Draining Valves一、阀门种类英汉术语对照Airvalves 空气阀门AngleStopvalves 角式截止阀AngleThrottleValves 角式节流阀AngleTypeGlobeValves 门角式截止阀Ashvalves 排灰阀Drainagevalves 排水阀Auxiliaryvalves 辅助（副）阀Balancevalves 平衡阀Bellowsvalves 波纹管阀Blowdownvalves 泄料（放空，排污）阀Brakevalves 制动阀ButterflyTypeNon-slamCheck 蝶式缓冲止回阀ButterflyValveswithGear

13、Actuator 蜗轮传动蝶阀Buttweldingvalves 对焊连接阀Clampvalves 对夹式阀门Cock 二通Combinationvalves 组合阀CQThreadBallValvesCQ 螺纹球阀Culvertvalves 地下管道阀Decelerationvalves 减速阀DiaphragmValves 隔膜阀Decompressionvalves 泄压阀DoubleDiscFlatGateValves 双闸板平板闸阀DoubleDiskParallelGateValves 明杆平行式双闸板闸板ElectricActuatedStopValves 电动截止阀Electr

14、icActuatedWedgeGateValves 电动楔式闸阀ElectricDoubleDiskParallelGateValves 电动平行式双闸板闸板EmergenyCut-offValves 紧急切断阀Exhaustvalves 排气阀FreeFloatTypeSteamTrap 浮球式疏水阀FlangeBallValves 法兰球阀FlangeGateValves 法兰闸阀FlangeGlobeValves 法兰截止阀GaugeValves 仪表阀Hand-operatedvalves 手动阀HardSealButterflyValves 金属密封碟阀HighTemperature

15、PressurePowerStationGateValves 高温高压电站闸阀HighTemperaturePressurePowerStationGlobeValves 高温高压电站截止阀Hydraulicrelayvalves 液压继动阀LiftCheckValves 升降式止回阀LiftCheckValves 升降式止回阀Limitvalves 限位阀LiningBallValves 衬里球阀LiningButterflyValves 衬里碟阀LiningCheckValves 衬里止回阀LiningCock 衬里二通LiningGlobeValves 衬里截止阀LiningT-Cock

16、Valves 衬里三通旋塞阀LiquidIndicator 液位计LPGPipeFitting 液化气管件MagneticCo-operateGlobeValves 磁耦合截止阀MagnetismForlePumps 磁力泵ManualOilPumpsValves 手摇油泵（阀 ）MeterNeedleTypeGlobeValves 仪表针形截止阀ObliqueStopValves 直流式截止阀ParallelSlideValves 浆液阀Pintlevalve 针形阀PipingCentrifugalPumps 管道离心泵Plungervalves 柱塞阀Pressurevalve压力（增压

17、）阀PipingPumps 管道泵PipingSafetyValves 管道安全阀PlungerGlobeValves 柱塞截止阀QuickDrainingValves 快速排污阀RestrictorValves 过流阀（或节流阀）SafetyValves 安全阀ScrewPumps 螺杆泵ScumGateValves 排渣闸阀Solenoidvalves 电磁阀SingleDiscFlatGateValves 单闸板平板闸阀SingleOpeningExhaustValves 单口排气球SlurryPumps 泥浆泵StopValves 截止阀Strainer 过滤器SubmergedMot

18、orPumps 潜水电泵（排污泵）SwingCheckValves 旋启式止回阀SwingCheckValves 旋启式止回阀TankLorryBallValves 槽车球阀T-Cock 三通ThinGateValves 薄型闸阀ThrottleValves 节流阀TinyDragSlowShutCheckValves 微阻缓闭止回阀Triple（tee）valves 三通阀Two-wayvalves 二通阀UnderWaterPumps 液下泵VacuumPumps 水力喷射器（真空泵）VerticalLiftCheckValves 立式止回阀WaferCheckValves 对夹式止回阀W

19、aferplatevalves 对夹蝶板阀对夹式衬胶蝶阀WaferTypeButterflyValveswithRubberItningWasteValves 排污箱（阀 ）WaterSealGateValves 水封闸阀WedgeGateValves 楔式闸阀YTypeandCylinderFiltersY 型筒型过滤器二、零部件英汉术语对照AxisGuide 轴套Ball 球、球芯Ballseat 密封圈BlowdownSealingFace 启、阀件密封面Body 阀体Bonnet 阀盖Disc 阀瓣Mut 螺母Screw 螺栓Sealing 密封件Spring 弹簧Stem 阀杆Ste

20、mMut 阀杆螺母Stemseal 填料WedgeDisc 闸板三、规范技术英语术语对照Applicablemedium 适用介质Applicabletemperature 适用温度ButtClamp 对夹Chemicalanalysis 化学成份Connectingformat 连接形式Doubledisc 双闸板Flexibledisc 弹性闸板Flange 法兰 Hoop 卡箍Insidethread 内螺纹Jacket夹套Mains 电源Materialchemicalanalysisandmechanicalcapacity 材料化学成份和机械性能materials 材料 Mater

21、ialsformainparts 主要零件材料Mechanicalcapacity 机械性能Max.DischargingCapacity 最大排水量Max.OperatingTemperature 最高工作温度Max.AllowableTemperature 最高允许温度Max.AllowablePressure 最高允许压力Model 型号Nameofparts 零件名称nitrogen(N) 氮Nominalbore 公称通径NominalPressure 公称压力Nozzle 排气口Outsidethread 外螺纹Oxidant 氧化性介质Parallel 平行Piping 管路Pi

22、ston 活塞Reductant 还原性介质Risingstem 明杆Seal 阀座，密封面Seattestingpressure压力气密封试验压力Socket 卡套Specifications 性能规范Singledisc 单闸板Solid 刚性Strenghtestingpressure 强度试验压力Steam,condensate蒸汽，凝结水Stroke 冲程，行程Water,oil,steam 水 ,温度 ,气Wedge 楔式 Welding 焊接四、材质术语英汉对照Atbasmetal 镍铬钢Buna-Nrubber 丁晴橡胶Castingaluminiumbrass 铸铝黄铜Cas

23、tingaluminiumbronze 铸铝青铜Ceramicmetal 陶瓷金属Chromelalloy 镍铬合金CHRrubber 氯晴橡胶Chrominm-molybdenum-vanadiumsteel 铬钼钒钢Chromiumstainlesssteel 铬不锈钢Chromium-molybdenumsteel 铬钼钢Corrugationpad 波形垫Cuprumalloy 铜合金DuctileCastiron 球墨铸铁Expandedgraphite 柔性石墨FineSteelCastingiron 优质碳素钢Fluorousrubber 氟橡胶GrayCastiron 灰铸铁H

24、ayne' sallo站铭鸨合金Hightemperaturesteel 高温钢Monel 蒙乃尔合金Lowtemperaturesteel 低温钢Nylon 尼龙塑料Polytetrafluoroethylene(PTEF) 聚四氟乙烯Polythene 聚乙烯Purealuminium 纯铝Purecupper 纯铜Rubbergraphiteboard 橡胶石墨板Springsteel 弹簧钢Stainlessacid-resistingsteel 不锈耐酸钢StainlessandGraphite 不锈钢 /石Stainlesssteel 不锈钢SteelCastingiron

25、 碳素钢铸件ShellTestPressure壳体试验压力ServiceFluid 工作介质。门材质术语中英文对照中国设备网2008-5-24文字选择： 大 中 小Atbas metal 银铭钢Buna-N rubber丁晴橡胶Casting aluminium brass 铸铝黄铜Casting aluminium bronze 铸铝青铜Ceramic metal陶瓷金属Chromel alloy银铭合金CHR rubber氯晴橡胶Chrominm-molybdenum-vanadium steel铭旬仇钢Chromium stainless steel铭不锈钢Chromium-molybd

26、enum steel 铭铝钢Corrugation pad 波形垫Cuprum alloy 铜合金Ductile Cast iron球墨铸铁Expanded graphite柔性石墨Fine Steel Casting iron 优质碳素钢Fluorous rubber 氟橡胶Gray Cast iron 灰铸铁Hayne1 s alloy钻铭鸨合金High tem perature steel 高温钢Monel蒙乃尔合金Low temperature steel 低温钢Nylon尼龙塑料Polytetrafluoroethylene(PTEF)聚四氟乙烯Polythene 聚乙烯Pure a

27、luminium 纯铝Pure cupper 纯铜Rubber graphite board 橡胶石墨板Spring steel 弹簧钢Stainless acid-resisting steel不锈耐峋？Stainless and Graphite不锈钢/ 石墨Stainless steel 不锈钢Steel Casting iron 碳素钢铸件Shell Test Pressure壳体试验压力Service Fluid工作介质阀门中英文对照表CQ 螺纹 CQThreadBallValves L 形三通式 L-patternthreeway T 形三通式 T-patternthreeway

28、SafetyvalveCQ 螺纹 CQ Thread Ball ValvesL 形三通式 L-pattern three wayT 形三通式 T-pattern three waySafety valve暗杆 Inside screw nonrising stem type gate valve百叶窗；闸板shutter百叶窗式挡板 louver damper摆阀式活塞泵 swing gate piston pump保温式 Steam jacket type报警阀 alarm valve报警阀；信号阀；脉冲阀sentinel valve背压 back pressure regulating v

29、alve背压率 Rate of back pressuec本体阀杆 密封body stem seal波纹管阀 Bellows valves波纹管 密封阀bellow sealed valve波纹管 密封式Bellows seal type波纹管平衡式 Bellows seal balance safety valve波纹管式 Bellows reducing valve波纹管式 Bellows weal reducing valve薄膜 thin film薄膜；隔膜diaphragm薄膜式 Diapjragm reducing valve薄型 Thin Gate Valves不封闭式Unsea

30、l type槽车 Tank Lorry Ball Valves颤振 Flutter常闭式 Normally closed type常开式 Normally open type超 Cryogenic valve超高压 Super high pressure valve超过 压力 Overpressure of a safety valve衬胶隔膜阀 rubber lined diaphragm 衬胶 rubber lined globe valve垂直板式 Vertical disc type butterfly valve磁耦合（球形截流阀）"id="tag_keys_li

31、nks"> Magnetic Co-operate Globe Valves带补充载荷的 Supplementary loaded safety valve 带辅助装置的 Assisted safety valve单阀碟双面平行 密封parallel single disk gate valve单口排气阀 Single Opening Exhaust Valves单向阀 Non-return Valve单闸板 Single gate disc单闸板平板 Single Disc Flat Gate Valves弹簧薄膜式活塞式可调 "id="tag_keys_

32、links"> Spring diaphragm reducing valve 弹簧式 Direct spring loaded safety valve 弹簧座 Spring plate弹性闸板 Flexible gate disc当量计算排量 Equivalent calculated capacity挡板damper导阀 Pilot valve导向套 Valve guide disc guideSub-zero valve低压 Low pressure valve底阀 bottom valve底阀 Foot valve电磁动装置 Eletro magnetic actua

33、tormagnetic valve solenoid valve 电磁一液动装置 Eletro magnetichydraulic actuator 电动阀 mortor operated valve 电动阀 motorized valve电动 Electric Actuated Stop Valves电动平行式双闸板闸板Electric Double Disk Parallel Gate Valves电动楔式 Electric Actuated Wedge Gate Valves电动装置 Electric actuator电一液动装置 日etro hydraulic actuator 电液伺

34、服阀 electro-hydraulic servovalve 调节弹簧 Regulation spring adjusting valve control valveregulating valve调节螺套 Adjusting bolt Adjusting screw 调节圈 Adjusting ring蝶板Disc;瓣阀 butterfly valve;瓣阀；拍门；钱链阀 flap valve蝶式缓冲 Butterfly Type Non-slam Check蝶式 Butterfly swing check valve定比 Proprutioning pressure reducing v

35、alve定差 Fixed differential reducing valve定值 Fixed pressure reducing valve动态特性 Dynamic characteristics对焊连接阀 Buttwelding valves对夹蝶板阀 Wafer plate valves对夹式衬胶 Wafer Type Butterfly Valves with Rubber Itning对夹式阀门Clamp valves对夹式 Wafer Check Valves额定NE量 Certified capacity额定排量系数 Derated coefficient of dischar

36、ge二通阀 Two-way valves阀 valve阀板 valve deck plate阀板 valve plate阀板式活塞泵 valve deck plate type piston pump阀板式活塞泵 valve plate type piston pump阀瓣Disc阀操纵杆 valve operating rod阀瘗槽 valve seat recess阀挡 valve grid阀挡 valve positioner阀挡 valve stop阀导杆 valve tail rod阀导向器 valve guide阀盖bonnet阀盖衬套bonnet bush阀盖垫片bonnet g

37、asket阀杆stem阀杆 valve rod阀杆 vake spindle阀杆端部尺寸 Dimmension of valve stem end阀杆环stem ring阀杆螺母 Yoke bushing Yoke nut阀杆填料 stem packing阀杆头部尺寸 Dimension of valve stem head阀簧 valve spring阀簧压板 valve spring plate阀控水锤泵 valve-controlled hydraulic ram阀框架valve yoke阀门 Valve传动装置 valve bandle set 和管件 Vakes and Fittin

38、gs 盘根 valve packing 手柄 valve handle 阀盘disc 阀盘 valve disc 阀片Disc 阀球 valve ball 阀马区动臂 valve driving arm 阀马区动臂 valve motion arm 阀式活塞 valve type piston 阀式活塞valve type bucket阀室式活塞泵 valve box type piston pump 阀室式活塞泵（美） valve pot type piston pump 阀抬起装置 valve lifting device 阀体body 阀体 valve body 阀箱 valve box

39、 阀箱 valve cage 阀箱 valve chest阀箱；阀限位器 valve guard阀箱盖 cover for valve box阀箱盖 valve box cover阀箱式活塞泵（美） turret type piston pump 阀形活塞泵 valve type piston pump 阀座 Seat ring 阀座 valve carrier阀座 valve seat（body seat）阀座；阀盘valve seat阀座环seat ring阀座 密封 嵌条 sealing strip for valve seat法兰flange法兰堵头blind flange法兰端fla

40、nge end法兰接头flange joint法兰连接紧固件（双头螺栓和螺帽）flange bolting法兰 密封 面, 法兰面 flange facing法兰面力口工 flange facing finish法兰 Flange Ball Valves翻板阀Flap反冲盘 Disc holder反向作用式 Reverse acting reducing valve 反向作用式 Reverse acting reducing valve放空阀 emptying valve放气阀 air vent valve;vent valve放气阀；排气阀 air evacuation valve放泄阀 e

41、scape valve分置阀室式活塞泵 separate valve box type piston pump分置阀室式活塞泵（美） side pot type piston pump封闭式Seal type浮动式 Float ball valve浮球 Ball float浮 Float Valve浮球式 Ball float steam trap浮球式 Free Float Type Steam Trap浮桶 Bucket float浮桶式 Open bucket steam trap辅助（副）阀 Auxiliary valves负荷率 Rate of load condensate附力口背

42、 压力 Superimposed back pressure复位弹簧 Returnning spring杠杆式Lever type杠杆式 Lever and weight loaded safety valve杠杆式 Lever reducing valve高温 High temperature valve高压 High pressure valve格兰密圭gland隔离阀 isolating valve隔膜 Diaphragm隔膜阀 diaphragm valve隔膜式控制阀 diaphragm operated comtrol valve工作背压 Operating back pressu

43、re工作温度 Operating temperature工作温度 Working temperature工作压差 Operting differential pressure工作压力 Operating pressure工作压力 Working pressure公称通径 Nominal diameter公称压力 Nominal pressure固定式 Fixed ball valve关闭 压力 Lockup pressure关阀过冷度 Subcooled temperature of close valve关阀温度 Closing valve temperature管道 Piping Safe

44、ty Valves过冷度 Subcoold temperature过流阀（或节流阀）Restrictor Valves喉径 Throat diameter滑阀 slide valve滑阀式回转活塞泵rotary piston pump with slide gate滑阀型转子泵 eccentric rotary pump with sliding sleeve环形阀 annular valve环形阀 double beat valve换向阀 selector valve换向阀 shuttle valve回转滑阀活塞泵 piston pump with rotary gate回座 压力 Re-s

45、eating pressure of a safety valve活塞H匿 Piston reducing valve活塞式阀 piston valve活塞式阀；柱塞式阀plunger valve活塞式 Piston reducing valve减速阀 Deceleration valves减压比 Pressure reducing ratiopressure reducing valve浆液阀 Parallel Slide Valves角阀 Angle Valve角阀 isolation valve angle configuration角式 Angie type角式节流阀 Angle Th

46、rottle Valves角式 Angle Stop valves钱链阀；片状阀 flapper valve节流阀 throttle valve节流阀 choke valve节流阀；节流throttle结构长度 Face-to-face dimension End-to-end dimension Face-to-centre dimension结构形式 Type of constructionGlobe valveShut-off Valve;关断阀 shut-off valve截止式隔膜阀 Globe diaphragm valve紧急切断阀 Emergeny Cut-off Valves

47、进气阀 air intake valve进水阀；inlet valve静态特性 Static characteristics静态特性偏差 Static characteristics derivation开阀过冷度 Subcooled temperature of open valve开阀温度 Opening valve temperature开启高度Lift壳体试验Shell test壳体试验 压力Seal test pressure空气 Air valves快速排污阀 Quick Draining Valves类型Type冷凝结水排量 Cold condensate capacity冷态试

48、验差 压力 Cold differential test pressure理论排量 Theoretical flowing capacity连接槽尺寸 Dimension of connecting channel连接尺寸 Conncetion cimension连接形式 Type of connection帘面积 Curtain area流道面积 Flow area流道直径 Flow diameter流量孑L板 flow orifice plate流量控制阀 flow control valve流量特性 Flow characteristics流量特性偏差 Flow characterist

49、ics derivation漏汽量Steam loss脉冲式 Impulse steam trap密封面 Sealing face密封_试验Seal test密封试验压力Seal test pressure明杆平行式双闸板闸板Double Disk Parallel Gate Valves明杆 Outside screw stem rising through handwheel type gate valve膜片 Diaphragm内压自封 Pressure seat逆止阀； check valve逆止阀；non-return valve逆止阀；;单向阀check valve排放背 压力 B

50、rilt-up back pressure排放压力 Relieving pressure排灰阀Ash valves排量系数 Coefficient of discharge排气阀 air release valve排气阀 Exhaust valves排气阀Vent Valve排水阀 Drainage valves排水温度 Temperature at discharging condensate排污阀 blowdown valve排污箱（阀）Waste Valves排渣 Scum Gate Valves盘阀 moushroom valve盘状阀 plate valve旁路阀 by pass v

51、alve配汽活塞阀缸套 piston valve line喷射阀 injection valve喷射阀 sprayer valve喷水阀 spray water valve频跳 Chatter平衡阀 Balance valves平衡式 Balance type平行式 Parallel gate valve Parallel slide valve 启闭件Disc启闭压差 Blowdown of a safety valve起始升程 Commencement of lift气动装置 Pneumatic actuator气阀摇臂valve arm气一液动装置 Pneumatic-hydraulic

52、 actuator 潜水电泵（排污泵）Submerged Motor Pumps 切断阀;block valve;shut-off valve;stop valve 切断式 stop check valve切换阀 侈向阀 changeover valve球、球芯BallBall valveglobe valve球体Ball全启式 Fall lift safety valve热凝结水排量 Hot condensate capacity入口隔离门 suction isolating valve塞子Plug三通阀 three-way isolating valve三通阀 three-way valv

53、e三通式 Three way type上密封Back seat上餐国_试验Back seal test渗漏量Leckage升降立式 Vertical lift check valve升降式 Lift check valve适用介质 Suitable medium适用温度 Suitable temperature手摇油泵（阀）Manual Oil Pumps Valves drain valve双金属片式 Bimetal elements steam trap 双 口 NE气球 Double Opening Exhaust Valves 双联弹簧式 Duplex safety valve双闸板

54、Double gate disc双闸板平板 Double Disc Flat Gate Valves水封 Water Seal Gate Valves水力喷射器（真空泵）Vacuum Pumps 伺服阀 servovalve填料 Packing填料垫 Packing seat填料函填料式 Gland packing plug valve填料箱 Stuffing box填料压盖Gland通气阀 breather valve通气阀；呼吸器breather通用 General valve吐出阀；排出阀 discharge valve吐出阀限位器delivery valve guard微启式 Low lift safety valve微阻缓闭 Tiny Drag Slow Shut Check Valves吻合度 Percent of contact area蜗轮传动 Butterfly Valves with Gear Actuator蜗轮传动装置 Wormgear actuator屋脊式隔膜阀 Weir diaphragm valve无阀泵 valveless pump无阀隔膜泵 valveless diaphragm pump无阀振动泵 valveless vibration pump无负荷漏汽量 No-load steam