阀门专业英语

1、 阀门专业英语 CQ螺纹球阀 CQ Thread Ball ValvesL形三通式 L-pattern three wayT形三通式 T-pattern three way安全阀 Safety valve暗杆闸阀 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背压调节阀 back pressure re

2、gulating valve背压率 Rate of back pressure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波纹管平衡式安全阀 Bellows seal balance safety valve波纹管式减压阀 Bellows reducing valve波纹管式减压阀 Bellows weal reducing valve薄膜 thin film薄膜; 隔膜 diaphragm薄膜式减压阀 Diaphragm reducing valve薄型闸阀

3、 Thin Gate Valves不封闭式 Unseal type槽车球阀 Tank Lorry Ball Valves颤振 Flutter常闭式 Normally closed type常开式 Normally open type超低温阀门 Cryogenic valve超高压阀门 Super high pressure valve超过压力 Overpressure of a safety valve衬胶隔膜阀 rubber lined diaphragm衬胶截止阀 rubber lined globe valve垂直板式蝶阀 Vertical disc type butterfly val

4、ve磁耦合截止阀 Magnetic Co-operate Globe Valves带补充载荷的安全阀 Supplementary loaded safety valve带辅助装置的安全阀 Assisted safety valve单阀碟双面平行密封闸阀 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单闸板平板闸阀 Single Disc Flat Gate Valves弹簧薄膜式减压阀 Spring diaphragm reduc

5、ing valve弹簧式安全阀 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 guide低温阀门 Sub-zero valve低压阀门 Low pressure valve底阀 bottom valve底阀 Foot valve电磁动装置 Eletro magnetic actuator电磁阀 magnetic valve电磁阀 sole

6、noid valve电磁液动装置 Eletro magnetichydraulic actuator电动阀 mortor operated valve电动阀 motorized valve电动截止阀 Electric Actuated Stop Valves电动平行式双闸板闸板 Electric Double Disk Parallel Gate Valves电动楔式闸阀 Electric Actuated Wedge Gate Valves电动装置 Electric actuator电液动装置 Eletro hydraulic actuator电液伺服阀 electro-hydraulic

7、servovalve调节弹簧 Regulation spring调节阀 adjusting valve调节阀 control valve调节阀 regulating valve调节螺套 Adjusting bolt Adjusting screw调节圈 Adjusting ring蝶板 Disc蝶阀；瓣阀 butterfly valve蝶阀；瓣阀；拍门；铰链阀 flap valve蝶式缓冲止回阀 Butterfly Type Non-slam Check蝶式止回阀 Butterfly swing check valve定比减压阀 Proprutioning pressure reducing

8、valve定差减压阀 Fixed differential reducing valve定值减压阀 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对夹式衬胶蝶阀 Wafer Type Butterfly Valves with Rubber Itning对夹式阀门 Clamp valves对夹式止回阀 Wafer Check Valves额定排量 Certified capacity额定排量系数 Derated coefficien

9、t of discharge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阀痤槽 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 b

10、ush阀盖垫片 bonnet gasket阀杆 stem阀杆 valve rod阀杆 valve 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阀门传动装置 valve bandle se

11、t阀门和管件 Valves and Fittings阀门盘根 valve packing阀门手柄 valve handle阀盘 disc阀盘 valve disc阀片 Disc阀球 valve ball阀驱动臂 valve driving arm阀驱动臂 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

12、body阀箱 valve box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

13、 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放空阀 emptying valve放气阀 air vent valve;vent valve放气阀；排气阀 air e

14、vacuation 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浮桶式疏水阀 Open bucket steam trap辅助（副）阀 Auxiliary val

15、ves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 diaphragm valve隔膜式控制阀 diaphragm oper

16、ated 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 temperature of close valv

17、e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 shuttle v

18、alve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 iso

19、lation valve angle 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

20、；关断阀 shut-off valve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 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 press

21、ure空气阀门 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流量孔板 flow or

22、ifice plate流量控制阀 flow control valve流量特性 Flow characteristics流量特性偏差 Flow characteristics derivation漏汽量 Steam loss脉冲式疏水阀 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明杆闸阀 Outside screw stem rising through handwheel type gate valve膜

23、片 Diaphragm内压自封 Pressure seat逆止阀；止回阀 check valve逆止阀；止回阀 non-return valve逆止阀;止回阀;单向阀 check valve排放背压力 Brilt-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 condens

24、ate排污阀 blowdown valve排污箱(阀) Waste Valves排渣闸阀 Scum Gate Valves盘阀 moushroom valve盘状阀 plate valve旁路阀 by pass valve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平行式闸阀 Parallel gate valve Parallel slide valve启闭件 Disc启闭压差 Blow

25、down of a safety valve起始升程 Commencement of lift气动装置 Pneumatic actuator气阀摇臂 valve arm气液动装置 Pneumatic-hydraulic actuator潜水电泵(排污泵) Submerged Motor Pumps切断阀;截止阀 block valve;shut-off valve;stop valve切断式止回阀 stop check valve切换阀;多向阀 changeover valve球、球芯 Ball球阀 Ball valve球阀 globe valve球体 Ball全启式安全阀 Fall lift

26、 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 valve三通式 Three way type上密封 Back seat上密封试验 Back seal test渗漏量 Leckage升降立式止回阀 Vertical lift check valve升降式止回阀 Lift check valve适用介质 Suitable medium适用温度 Suitable temperature手摇油泵(阀) Ma

27、nual Oil Pumps Valves疏水阀 drain valve双金属片式疏水阀 Bimetal elements steam trap双口排气球 Double Opening Exhaust Valves双联弹簧式安全阀 Duplex safety valve双闸板 Double gate disc双闸板平板闸阀 Double Disc Flat Gate Valves水封闸阀 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 Stuffing填料式旋塞阀

28、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通用阀门 General valve吐出阀；排出阀 discharge valve吐出阀限位器 delivery valve guard微启式安全阀 Low lift safety valve微阻缓闭止回阀 Tiny Drag Slow Shut Check Valves吻合度 Percent of contact area蜗轮传动蝶阀 Butterfly Valves with Gear Actuator蜗轮传动装置 Worm

29、gear 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 loss无负荷漏汽率 Rate of no-load steam loss吸（抽）气阀 Aspirating valves吸入阀 suction valve吸入阀限位器 suction valve guard先导式安全阀 Pilot operated safety valve先导式液压阀 Pilot-operated r

30、educing valve相对静偏差 Relative static characteristics derivation相对流量特性偏差 Relative flow characteristics derivation相对压力特性偏差 Relative pressure characteristics derivation销轴 Hinge pin楔式闸阀 Wedge gate valve斜板式蝶阀 Indined disc butterfly valve泄料（放空，排污）阀 Blowdown valves泄压阀 Decompression valves泄压阀 pressure release

31、 valve泄压阀；安全阀 relief valve卸荷式减压阀 Balanced reducing valve型号 Type Model旋启多瓣式止回阀 Multi-disc swing foot valve旋启式止回阀 Swing check valve旋启双瓣式底阀 Double disc swing foot valve旋塞阀 Cock旋塞阀 plug valve压力（増压）阀 Pressure valve压力调节阀；压力控制阀 pressure controlled valve压力特性 Pressure characteristics压力特性偏差 Pressure character

32、istics derivation压力增长系数 Pressure increasing ratio摇杆 Arm液动装置 Hydraulic actuator液化气管件 LPG Pipe Fitting液下泵 Under Water Pumps液压执行器 hydraulic actuator仪表针形截止阀 Meter Needle Type Globe Valves溢流阀 overflow valve翼形阀；锥形阀 wing valve油封式旋塞阀 Lubricated plug valve有阀翼板 double acting wing有阀翼板 wing with valve有负荷漏汽量 Loa

33、d steam loss有负荷漏汽率 Rate of load steam loss圆板阀；圆盘阀 disc valve圆盘式疏水阀 Shemostatic team trap圆柱齿轮传动装置 Cylindrical gear actuator圆锥齿轮传动装置 Conical gear actuator闸板 Wedge disc闸板式隔膜阀 Wedge diaphragm valve闸阀 gate valve闸阀 sluice valve针形阀 Pintle valve ; Needle valve真空破坏阀 vacuum breaker valve蒸汽疏水阀 Automatic steam

34、trap Trap整定压力 Set pressure正向作用式减压阀 Direct acting reducing valve支架 Yoke直接载荷式安全阀 Direct loaded safety valve直接作用式减压阀 Direct-acting reducing valve直流式 Y-globe type阀门招聘网直流式截止阀 Oblique Stop Valve直通单向阀 inline check valve直通单向阀 straightway check valve直通阀 Throughway Valve止回阀 Check Valve止回阀；回流阀 reflux valve制动阀

35、Brake valves中压阀门 Middle pressure valve钟形浮子式疏水阀 Inverted bucket steam trap钟形罩 Inverted bucket轴套 Axis Guide主阀 Main valve主要外形尺寸 Prime out-form dimensions主要性能参数 Specifeca tion speeification注液漏斗阀 Priming Tundish Valve柱塞阀 Plunger valve柱塞截止阀 Plunger Globe Valve柱塞型摆动阀 rocking plunger valve撞击手轮 Impact handwh

36、eel锥形阀；翼形阀 conical valve自动循环阀 Automatic Recirculation Valve组合阀 Combination valves最大过冷度 Maximum subcoold temperature最大流量 Maximum flow rate最大压差 Maximum differential pressure最低工作压力 Minimum operating pressure最高背压率 Maximum rate of back pressure最高工作背压 Maximum operating back pressure最高工作温度 Maximum operatin

37、g temperature最高工作压力 Maximum operating pressure最高排水温度 Maximum temperature at discharging最高允许温度 Maximum allwable temperature最高允许压力 Maximum allowable pressure最小过冷度 Minimum subcooled temperature最小压差 Minimum differntial pressure阀门大全（中英对照）air-compressor valve 空气压缩机阀门automatic cutout valve 自动切断阀门backlash v

38、alve 无游隙阀门High temperature valve 高温阀门hose valve 水带阀门pipe manifold valves 管道汇集器阀门pneumatic cylinder cock valve 风动汽缸排水阀阀门pneumatic positioner valve 气动阀门定位器pneumatic sander valve 风动撒砂器阀门quick opening valve 快开阀门quick-opening gate valve 速启阀门standby valve 应急阀门; 备用阀门two selenoid 双螺管阀门valve chest 阀门室valve c

39、learance 阀门间隙； 阀余隙valveman 阀门操作者wash-out valve 清洗阀门adjusting valve 调整阀, 调节阀admission valve 进气阀; 进浆阀air admission valve 进气阀air bleed(ing) valve 排气阀; 排气嘴air control valve 空调阀air cylinder valve 气筒阀air escape valve 泄气阀air inlet valve (=air intake valve) 进气阀; 进风阀air operated throttle motor 风动节流器, 风动节流阀马达

40、air pilot valve 空气导向阀air pressure governor valve 风压调压阀air relay valve 空气中继阀air release valve (=air relief valve) 排气阀; 放空阀air reversing valve 空气换向阀air shut-off valve 空气关闭阀air signal reducing valve 空气信号减压阀air slide valve 空气分配阀air starting (control) valve 空气起动(控制)阀air straining check valve 空气滤尘止回阀air v

41、alve 空气阀air vent valve 气动调压阀, 排气阀air-actuated direction valve 气动控制换向阀air-compressor valve 空气压缩机阀门air-operated valve 气动换向阀air-vacuum proportional valve 空真比例阀air-vacuum two way valve 空真二位阀alarm valve 报警阀aligned grid valve 栅极中点校直的电子管阀Allan valve 阿伦滑阀altitude valve 【航空】高度阀(航空发动机汽化器的可调整阀)ammonia valve 【工

42、】氨阀angle back-pressure valve 背压角阀angle globe valve 折角球形阀angle stop valve 弯形止阀, 折角止阀angle valve 角阀angle water valve 折角水阀annular ring valve 环形阀; 环状阀anti-g valve 【航空】防超重活门, 抗重力阀application pilot valve 作用导阀application valve 作用阀, 控制阀ashpan blower valve 灰盘吹风阀Askania valve 射流管阀atmos valve (=atmospheric val

43、ve) 大气阀, 空气阀; 放空阀autocontrol valve 自动控制阀automatic air valve 自动空气阀automatic brake valve 自动制动阀automatic control valve 自动控制阀automatic cutout valve 自动切断阀门automatic delivery control valve 自动输送控制阀automatic drain valve 自动排水阀automatic expansion valve (定压式)自动膨胀阀automatic gas sampling valve 自动气体进样阀automatic r

44、educing valve 自动减压阀(高速制动机)automatic regulating valve 自动调节阀automatic spring loaded valve 自动弹簧阀automatic supplementary air valve 自动补充(空)气阀automatic unloading valve 自动卸载阀automatic valve 自动阀automatic water level valve 自动水准阀automatically operated valve 自动操作阀automatic-control servo valve 自动控制伺服阀auxiliary

45、changeover valve 辅助切换阀auxiliary valve 辅助阀(暖汽调整阀用)back valve 回动阀, 止回阀, 逆止阀, 单向阀backflush valve 反冲阀backlash valve 无游隙阀门back-pressure valve 止回阀back-up valve 列车后端制动阀balance pressure reducing valve 平衡减压阀balance slide valve 平衡滑阀balance valve 平衡阀, 均压阀balanced distribution valve 平衡配气阀balanced safety valve 平

46、衡式安全阀(可变动背压)ball check valve 止回球阀, 球形节流阀ball float valve 浮子阀, 浮球阀ball non-return valve 球形止回阀ball relief valve 球形安全阀ball safety valve 球形安全阀ball stop valve 球形止阀ball valve 球阀, 弹子阀ball-and-lever valve 杠杆球阀bell valve 钟形阀, 装料钟bellows valve 波纹管阀bellows-operated pilot valve 膜盒控制导阀, 膜盒导引阀bevel seat valve 斜座阀

47、, 角阀biased valve 承载阀blast furnace gas valve 高炉煤气阀blast regulation valve 通风调节阀bleed valve 排出阀; 放泄阀bleeder valve 放液阀, 放水阀block valve 隔断阀blocking valve 闭塞阀blow valve 通风阀, 安全阀, 放空阀blow-down valve 排气阀blower drain valve 鼓风机放泄阀blower regulation valve 通风调节阀blower valve 鼓风机阀blow-off valve 排出泄阀, 放泄空阀, 喷放阀blow

48、out valve 排气管, 排出阀boiler check valve 锅炉止回阀boiler feed valve 锅炉给水阀bonnet valve 帽状阀bottom drain valve 底部放泄阀bottom valve 底阀brake application magnet valve 电磁制动阀brake application valve 制动作用阀brake control valve 制动控制阀brake cylinder release valve 制动缸缓解阀, 制动缸放风阀brake metering valve 制动调节阀brake pipe compensati

49、ng valve 制动管补偿阀brake release magnet valve 缓解电磁阀brake valve 制动阀brass valve 黄铜阀brass-fitted cast-iron valve 黄铜配制铸铁阀brass-trimmed valve 黄铜配制阀breather valve 通气阀, 呼吸阀breathing type safety valve 呼吸式安全阀(罐车)brine retaining valve 盐水箱保持阀bucket valve 活塞阀buffer change valve 缓变阀building block valve 积木式阀, 集成阀buil

50、t-in check valve 内装式单向阀bullet valve 球阀buried valve with key 液下控制阀butterfly control valve 蝶形控制阀butterfly throttle valve 蝶形节流阀butterfly valve 蝶阀by-pass valve 旁通阀, 辅助阀, 回流阀by-path valve 旁通阀, 辅助阀, 回流阀caboose valve 守车阀cage type valve 笼形阀cam-operated valve 凸轮控制阀capless tyre valve 无帽胎阀car discharge valve 车

51、辆放风阀car signal valve 车辆信号阀, 车辆放风阀cartridge inserted valve 筒式插装式阀, 插装阀cement valve 【机】水泥止回阀center valve 中心阀centre bypass valve 中间位置旁通的换向阀, M型机能换向阀centre spool valve 中心柱形阀centrifugal saw plate valve 离心机的圆盘保险(溢流)阀centrifugal type injection valve 离心式喷射阀change valve 活页阀;旋转阀, 转换阀;多向阀charge valve 充气阀, 加载阀,

52、 加液阀charging check valve 充气止回阀charging valve 充气阀, 加载阀, 加液阀check valve 单向阀, 止回阀, 防逆阀;检验阀check-valve pump 止回阀配流泵chimney valve 烟道阀choker checkvalve 阻气单向阀cindervalve 卸灰阀Cineston controller brake valve 钦式控制制动联合阀 (用于地下铁道)circulating-water valve 循环水阀circulation valve 环流阀clack valve 止回阀clapper valve 瓣阀clock

53、 valve 单向绞链阀closed center valve 中间位置封闭的阀(方向阀); 闭中心阀closed crossover valve 正遮盖的换向阀closed exhaust valve 密闭排气阀closed-type fuel valve 密闭形燃油阀closing valve 隔离阀, 节制阀, 隔断阀, 停汽阀clutch application valve 离合器作用阀clutch temperature adjusting valve 离合器温度调节阀coasting valve 滑行阀, 惯性运动阀coaxial valve 同轴管阀cold water stop

54、 valve 凉水止阀column shut-off valve 柱关闭阀column switching valve 柱转换阀column valve 柱阀combination sliding and rotary spool valve 又移动又旋转的圆柱滑阀combination valve 组合阀combined inlet-outlet valve 进出组合阀combined strainer and check valve 混合滤尘止回阀common slide valve 普通滑阀compensated flow control valve 带压力补偿的流量控制阀;调速阀com

55、pensated relief valve 平衡式溢流阀compensating air valve 补充空气阀, 补偿气阀, 平衡气阀compensating valve 补偿阀compensation valve 平衡阀, 补偿阀compression release valve 减压阀compression valve (减振器的)压缩行程阀concentric valve 同心阀condensate valve 凝结水阀condenser level control valve 凝汽器水位调节阀condenser relief valve 凝气器安全阀condenser valve 凝汽阀conductors valve 车长阀, 紧急制动阀cone valve 锥形阀cone-way valve 单向阀conical seat v