平行式双闸板闸阀

阀门的选用原则和安装要求一闸阀:螺纹闸阀法兰明杆闸阀暗杠弹性座闸阀闸阀是作为截止介质使用，在全开时整个流通直通，此时介质运行的压力损失最小。

闸阀通常适用于不需要经常启闭，而且保持闸板全开或全闭的工况。

不适用于作为调节或节流使用。

对于高速流动的介质，闸板在局部开启状况下可以引起闸门的振动，而振动又可能损伤闸板和阀座的密封面，而节流会使闸板遭受介质的冲蚀。

从结构形式上，主要的区别是所采用的密封元件的形式。

根据密封元件的形式，常常把闸阀分成几种不同的类型，如：楔式闸阀、平行式闸阀、平行双闸板闸阀、楔式双闸板闸等。

最常用的形式是楔式闸阀和平行式闸阀。

二截止阀:法兰截止阀螺纹截止阀塑料截止阀截止阀的阀杆轴线与阀座密封面垂直。

阀杆开启或关闭行程相对较短，并具有非常可靠的切断动作，使得这种阀门非常适合作为介质的切断或调节及节流使用。

截止阀的阀瓣一旦处于开启状况，它的阀座和阀瓣密封面之间就不再的接触，并具有非常可靠的切断动作，使得这种阀门非常适合作为介质的切断或调节及节流使用。

截止阀一旦处于开启状态，它的阀座和阀瓣密封面之间就不再有接触，因而它的密封面机械磨损较小，由于大部分截止阀的阀座和阀瓣比较容易修理或更换密封元件时无需把整个阀门从管线上拆下来，这对于阀门和管线焊接成一体的场合是很适用的。

介质通过此类阀门时的流动方向发生了变化，因此截止阀的流动阻力较高于其它阀门。

常用的截止阀有以下几种：1）角式截止阀；在角式截止阀中，流体只需改变一次方向，以致于通过此阀门的压力降比常规结构的截止阀小。

2）直流式截止阀；在直流式或Y形截止阀中，阀体的流道与主流道成一斜线，这样流动状态的破坏程度比常规截止阀要小，因而通过阀门的压力损失也相应的小了。

3）柱塞式截止阀：这种形式的截止阀是常规截止阀的变型。

在该阀门中，阀瓣和阀座通常是基于柱塞原理设计的。

阀瓣磨光成柱塞与阀杆相连接，密封是由套在柱塞上的两个弹性密封圈实现的。

两个弹性密封圈用一个套环隔开，并通过由阀盖螺母施加在阀盖上的载荷把柱塞周围的密封圈压牢。

电磁阀相关英文术语一、零部件术语Axes Guide 轴套Ball 球、球芯Ball seat 密封圈Blowdown Sealing Face 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Stem Mut 阀杆螺母Stem seal 填料Wedge Disc 闸板二、性能术语Applicable media 适用介质Applicable tempure 适用温度Butt Clamp 对夹Chemical anaiysis 化学成份Connecting format 连接形式Double disc 双闸板Flexible disc 弹性闸板Flange 法兰Hoop 卡箍Inside theread 内螺纹Material chemical analysis and mechanical capacity 材料化学成份和机械性能materials 材料Materials for main parts 主要零件材料Mechanical capacity 机械性能Max. Discharging Capacity 最大排水量Max. Operating Temperature 最高工作温度Max. Allowable Temperature 最高允许温度Max. Allowable Pressure 最高允许压力Model 型号Name of parts 零件名称Nominal Pressure 公称压力Outside theread 外螺纹Oxidant 氧化性介质Parallet 平行Reductant 还原性介质Rising stem 明杆Seat testing pressure 压力气密封试验压力Socket 卡套Specifications 性能规范Single disc 单闸板Solid 刚性Strengh testing pressure 强度试验压力Steam , condensate 蒸汽 , 凝结水Water,oil,steam 水 , 温度 , 气Wedge 楔式Welding 焊接三、材料术语Buna-N rubber 丁晴橡胶Casting aluminium brass 铸铝黄铜Casting aluminium bronze 铸铝青铜CHR rubber 氯晴橡胶Chrominm-molybdenum-vanadium steel 铬钼钒钢Chromium stainless steel 铬不锈钢Chromium-molybdenum steel 铬钼钢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Hayne's alloy 钴铬钨合金High tem perature steel 高温钢Low tem perature steel 低温钢Nylon 尼龙塑料Polytetrafluoroethylene 聚四氟乙烯Pure aluminum 纯铝Pure cupper 纯铜Rubbeer graphite board 橡胶石墨板Spring steel 弹簧钢Stainless acid-resisting steel 不锈耐酸钢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 工作介质四、阀门术语Angle Stop Valves 角式截止阀Angle Throttle Valves 角式节流阀Angle Type Globe Valves 角式截止阀Butterfly Type Non-slam Check 蝶式缓冲止回阀Butterfly Valves with Gear Actuator 蜗轮传动蝶阀Cock 二通CQ Thread Ball Valves CQ 螺纹球阀Diaphragm Valves 隔膜阀Double Disc Flat Gate Valves 双闸板平板闸阀Double Disk Parallel Gate Valves 明杆平行式双闸板闸板Double Opening Exhaust Valves 双口排气球Electric Actuated Stop Valves 电动截止阀Electric Actuated Wedge Gate Valves 电动楔式闸阀Electric Double Disk Parallel Gate Valves 电动平行式双闸板闸板Emergeny Cut-off Valves 紧急切断阀Free Float Type Steam Trap 浮球式疏水阀Flange Ball Valves 法兰球阀Flange Gate Valves 法兰闸阀Flange Globe Valves 法兰截止阀Gauge Valves 仪表阀Hard Seal Butterfly Valves 金属密封碟阀High Temperature Pressure Power Station Gate Valves 高温高压电站闸阀High Temperature Pressure Power Station Globe Valves 高温高压电站截止阀Lift Check Valves 升降式止回阀Lift Check Valves 升降式止回阀Lining Ball Valves 衬里球阀Lining Butterfly Valves 衬里碟阀Lining Check Valves 衬里止回阀Lining Cock 衬里二通Lining Globe Valves 衬里截止阀Lining T-Cock Valves 衬里三通旋塞阀Liquid Indicator 液位计LPG Pipe Fitting 液化气管件Magnetic Co-operate Globe Valves 磁耦合截止阀Magnetism Forle Pumps 磁力泵Manual Oil Pumps Valves 手摇油泵 ( 阀 )Meter Needle Type Globe Valves 仪表针形截止阀Oblique Stop Valves 直流式截止阀Parallesl Slide Valves 浆液阀Piping Centrifugal Pumps 管道离心泵Piping Pumps 管道泵Piping Safety Valves 管道安全阀Plunger Globe Valves 柱塞截止阀Quick Draining Valves 快速排污阀Restrictor Valves 过流阀 ( 或节流阀 )Safety Valves 安全阀Screw Pumps 螺杆泵Scum Gate Valves 排渣闸阀Single Disc Flat Gate Valves 单闸板平板闸阀Single Opening Exhaust Valves 单口排气球Slurry Pumps 泥浆泵Stop Valves 截止阀Strainer 过滤器Submerged Motor Pumps 潜水电泵 ( 排污泵 )Swing Check Valves 旋启式止回阀Swing Check Valves 旋启式止回阀Tank Lorry Ball Valves 槽车球阀T-Cock 三通Thin Gate Valves 薄型闸阀Throttle Valves 节流阀Tiny Drag Slow Shut Check Valves 微阻缓闭止回阀Under Water Pumps 液下泵Vacuum Pumps 水力喷射器 ( 真空泵 )Vertical Lift Check Valves 立式止回阀Wafer Check Valves 对夹式止回阀Wafer Type Butterfly Valves with Rubber Itning 对夹式衬胶蝶阀Waste Valves 排污箱 ( 阀 )Water Seal Gate Valves 水封闸阀Wedge Gate Valves 楔式闸阀Y Type and Cylinder Filters Y 型筒型过滤器。

阀门分类1、按工作压力分类：真空阀工作压力低于标准大气压的阀门。

低压阀门：≤16公斤/CM2，常用16公斤/CM2、10公斤/CM2，公称压力PN 小于1.6MPa；中压阀门：有25公斤/CM2，40公斤/CM2，64公斤/CM2三种，公称压力PN 2.5~6.4MPa；高压阀门：800~100公斤/CM2，公称压力PN10.0~80.0Mpa；超高压阀≥100公斤/CM2，公称压力PN大于100Mpa。

2、按介质温度分类：高温阀：大于450C的阀门。

中温阀：120℃大于、小于45℃的阀门。

常温阀：-40℃大于、小于120℃的阀门。

低温阀：-100℃大于、小于-40℃的阀门。

超低温阀：小于-100℃的阀门。

3、按阀体材料分类：非金属材料阀门：如陶瓷阀门、玻璃钢阀门、塑料阀门。

金属材料阀门：如铜合金阀门、铝合金阀门、铅合金阀门、钛合金阀门、蒙乃尔合金阀门、铸铁阀门、碳钢阀门、铸钢阀门、低合金钢阀门、高合金钢阀门。

金属阀体衬里阀门：如衬铅阀门、衬塑料阀门、衬搪瓷阀门。

4、按阀门类别分为：闸阀：是作为截止介质使用，优点是阀芯可以全部打开，此时介质运行的压力损失最小。

闸阀通常适用于不需要经常启闭，适用保持闸板全开或全闭的工况。

不适用于作为调节或节流使用。

常用闸阀类型如：楔式闸阀、平行式闸阀、平行双闸板闸阀、楔式双闸板闸等。

最常用的形式是楔式闸阀和平行式。

连接方式为丝扣连接和法兰连接；用于采暖、工艺管道系统，连接方式随管道连接方式；≥dn50给水、煤气管道上采用法兰闸阀。

截止阀：截止阀的阀杆轴线与阀座密封面垂直。

阀杆开启或关闭行程相对较短，并具有非常可靠的切断动作，使得这种阀门非常适合作为介质的切断或调节及节流使用；介质通过此类阀门时的流动方向发生了变化，因此截止阀的流动阻力较高于其它阀门。

常用的截止阀有以下几种：角式截止阀，常用于卫生器具控制阀。

直通式截止阀，常用于给水系统。

柱塞式截止阀：主要用于要求快速“开”或“关”系统。

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阀操控杆 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 bush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 set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 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 flange法兰端 flange end法兰接头 flange joint法兰连结紧固件（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 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浮桶式疏水阀Open bucket steam trap协助（副）阀Auxiliary valves负荷率 Rate of load condensate附带背压力 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隔绝阀 isolating valve隔阂 Diaphragm隔阂阀 diaphragm valve隔阂式控制阀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封闭压力 Lockup pressure关阀过冷度 Subcooled temperature 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滑阀式展转活塞泵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展转滑阀活塞泵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 isolation 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构造长度 Face-to-face dimension ;End-to-end dimension; Face-to-centre dimension构造形式 Type of construction截止阀 Globe valve截止阀 Shut-off Valve截止阀；关断阀shut-off valve截止式隔阂阀Globe diaphragm valve紧迫迫断阀 Emergeny Cut-off Valves进气阀 air intake valve进水阀；进口阀门inlet valve静态特征 Static characteristics静态特征误差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空气阀门 Air valves迅速排污阀 Quick Draining Valves种类 Type冷凝固水排量Cold condensate capacity冷态试验差压力Cold differential test pressure理论排量 Theoretical flowing capacity连结槽尺寸 Dimension of connecting channel连结尺寸 Conncetion cimension连结形式 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 orifice plate流量控制阀 flow control valve流量特征 Flow characteristics流量特征误差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 condensate 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发射阀 injection valve发射阀 sprayer valve喷水阀 spray water valve频跳 Chatter均衡阀 Balance valves均衡式 Balance type平行式闸阀 Parallel gate valve Parallel slide valve启闭件 Disc启闭压差 Blowdown of a safety valve开端升程 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 safety valve热凝固水排量Hot condensate capacity进口隔绝门 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起落立式止回阀Vertical lift check valve起落式止回阀Lift check valve合用介质 Suitable medium合用温度 Suitable temperature手摇油泵 (阀) Manual 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水力发射器 (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 符合度 Percent of contact area蜗轮传动蝶阀Butterfly Valves with Gear Actuator 蜗轮传动装置Wormgear actuator屋脊式隔阂阀Weir diaphragm valve无阀泵 valveless pump无阀隔阂泵 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 reducing valve相对静误差 Relative static characteristics derivation相对流量特征误差Relative flow characteristics derivation相对压力特征误差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 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压力调理阀；压力控制阀pressure controlled valve压力特征 Pressure characteristics压力特征误差Pressure characteristics derivation 压力增加系数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液压履行器 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Load 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闸板式隔阂阀Wedge diaphragm valve闸阀 gate valve闸阀 sluice valve针形阀 Pintle valve ; Needle valve真空损坏阀 vacuum breaker valve蒸汽疏水阀 Automatic steam 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 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柱塞型摇动阀rocking plunger valve撞击手轮 Impact handwheel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 operating temperature 最高工作压力Maximum operating pressure最高排水温度Maximum temperature at discharging 最高同意温度Maximum allwable temperature最高同意压力Maximum allowable pressure最小过冷度 Minimum subcooled temperature最小压差 Minimum differntial pressure。

一、闸阀闸阀（gatevalve）的启闭件是闸板，闸板的运动方向与流体方向相垂直，闸阀只能作全开和全关 , 不能作调节和节流。

1.分类：闸阀根据分类方法不同可分为：平行式闸阀、楔式闸阀、升降式闸阀、旋转杆式闸阀、快速启闭闸阀、缩口闸阀、平板闸阀等。

2.特点：流体阻力小，适用的压力、温度范围大，介质流动方向不受限制，密封性能良好。

3.施工、安装要点：1）安装位置、高度、进出口方向必须符合设计要求，连接应牢固紧密。

2）安装在保温管道上的各类手动阀门，手柄均不得向下。

3）阀门安装前必须进行外观检查，阀门的铭牌应符合现行国家标准《通用阀门标志》GB 12220的规定。

对于工作压力大于1.0 MPa 及在主干管上起到切断作用的阀门，安装前应进行强度和严密性能试验，合格后方准使用。

强度试验时，试验压力为公称压力的1.5倍，持续时间不少于5min，阀门壳体、填料应无渗漏为合格。

严密性试验时，试验压力为公称压力的1.1倍；试验压力在试验持续的时间应符合GB 50243标准要求，以阀瓣密封面无渗漏为合格。

4.闸阀的种类按密封面配置可分为楔式闸板式闸阀和平行闸板式闸阀，楔式闸板式闸阀又可分为：单闸极式、双闸板式和弹性闸板式；平行闸板式闸阀可分为单闸板式和双闸板式。

按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。

闸阀的安装与维护应注意以下事项：●手轮、手柄及传动机构均不允许作起吊用，并严禁碰撞。

●双闸板闸阀应垂直安装（即阀杆处于垂直位置，手轮在顶部 )。

●带有旁通阀的闸阀在开启前应先打开旁通阀（以平衡进出口的压差及减小开启力 )。

●带传动机构的闸阀，按产品使用说明书的规定安装。

●如果阀门经常开关使用 , 每月至少润滑一次。

二、截止阀截止阀（stop valve,Globe Valve）的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿阀座的中心线作直线运动。

阀杆的运动形式，（通用名称：暗杆），也有升降旋转杆式，（通用名称：明杆）截止阀是指关闭件（阀瓣）沿阀座中心线移动的阀门。

阀门代号缩写AAAE：Acrylic acid – ethylene 丙烯酸–乙炔AARH：Arithmetic average roughness height算术平均粗糙度高度ABRA：adrasive 研磨料ACM：asbestes covered metal 包石棉金属Actuated valve 驱动阀门：借助手动、电动、液压或气压来操纵的阀门ACV：automatic 自动control valve控制阀AGSS：Angular Seating Surface 角支持面AI：aluminum 铝AI.B：aluminium bronze 铝青铜Air valves 空气阀门AIV：air inlet valve 进气阀ALBC：aluminium bronze casting 铝青铜铸件AMB：Ambient 环境Angle stop valves 角式截止阀Angle throttle valves角式节流阀Angle type globe valves 门角式截止阀ANSI：American National Standards Institute美国国家标准协会AO：Adjustable Opening 可调式开AOIV：automatically operated inlet valve 自动操作进给阀AOPV：Air-Operated Plastic valve 气动塑料阀a/or：automatic operated valve 自动操作阀API：American Petroleum Institute美国石油协会Applicable medium 适用介质Applicable temperature 适用温度AS：Alloy Steel 合金钢ASB：Asbestos石棉ASBR：Asbestos Rubber石棉橡胶Ash valves 排灰阀Aspirating valves 吸（抽）气阀ASME：American Society Of Mechanical Engineer美国机械工程师学会ASTM：American Society Of Testing Material美国材料试验学会、阀体材料Atbas metal 镍铬钢Auxiliary valves 辅助（副）阀AV：Angle Valve角阀AWV：automatic washing valve 自动洗涤阀AWWA：American Water Works Association 美国自来水厂协会Axis guide 轴套BBalance valves 平衡阀Ball 球、球芯Ball seat 密封圈BAV、BV：Ball valve球阀BB：Bolted Bonnet螺栓连接阀盖BBE：Bevel Both Ends两端坡口端BC：Bevel Cover螺栓连接阀帽.BCV：ball check valve 球止回阀BDV：blow down valve 放泄阀BE：Bever End坡口端Bellows valves 波纹管阀 Bellow pipe 波纹管Bevel Gear伞齿轮BFV、BUV：Butterfly valve蝶阀BFW：Boiler Feed Water锅炉给水BG：Bolted Gland 螺栓连接填料压盖Bi-offset：双偏心（蝶阀）BLD：Blind Flange盲法兰（法兰盖）BLE：Bever Large End大端坡口端BLK：Blank插板（盲板）Blowdown sealing face 启、阀件密封面Blowdown valves 泄料（防控，排污）阀BLS：Bellows Sealing波纹管密封Body 阀体Bonnet 阀盖Brake valves 制动阀BRS：brass 黄铜BRZ：bronze 青铜BTV：Breathing Valve呼吸阀Buna-N rubber 丁晴橡胶Butt clamp 对夹Butterfly type non-slam check 蝶式缓冲止回阀Butterfly valves with gear actuator 涡轮传动蝶阀Butt welding valvws 对焊连接阀BV：breather valve 呼吸阀BVMA：British Valve Manufactures Association 英国阀门制造商协会BW：butt welded 对焊连接BS：british standard 英国标准CCA：corrosion allowance腐蚀裕量Casting aluminium brass 铸铝黄铜Casting aluminium bronze 铸铝青铜CEIR法：Comite Europeen de I’industric de la Robineterie欧洲阀门制造业委员会Ceramic metal 陶瓷金属Check valve 换向阀Chemical analysis 化学成分Chromel alloy 镍铬合金Chrominm-molybdenum-vanadium steel 铬钼钒钢Chrominm stainless steel 铬不锈钢Chrominm-molybdenum steel 铬钼钢CHR rubber 氯晴橡胶CI：cast lron 铸铁CL：class等级Clamp valves 对夹式阀门CLAS：cast low alloy steel 低合金铸钢Cock 二通CODE、OCMM：commodity code商品代码Combination valves 组合阀CON：concentric同心Connecting format 连接形式 connection 连接方式Corrugation pad 波形垫CQ Thread ball valves CQ螺纹球阀CPL：coupling管箍CR：chloroprene rubber 氯丁橡胶CS：carbon steel 碳钢Culvert valves 地下管道阀Cuprum alloy 铜合金CV、CHV：Check valve止回阀DDATASHEET FOR VALVES PORCUREMENT 阀门采购（制造）数据表DBB：double blovk and bleed 双截断排放（阀）Deceleration valves 减速阀DE S-Bolt：double end stud bolt双头螺柱DGT：Degreasing treatment 脱脂处理DI：ductile lron球墨铸铁Diaphragm valves 泄压阀Disc 阀瓣DN：Nominal diameter公称直径Dimension of connecting channel 连接槽尺寸（启闭件与阀杆装配连接部位的结构尺寸）Double Disc 双闸板Double Disc flat gate valves 双闸板平行闸阀Double Disc parallel gate valves 明杆平行式双闸板闸阀Double opening exhauxt valves 双口排气球DR：drip ring排污环Drainage valves 排水阀DSAW：double side arc welding 双面埋弧焊Dual plate双瓣式（止回阀）Ductile cast iron 球墨铸铁DV：diaphragm valve隔膜阀EEB：extended bonnet延长阀盖、阀盖加长颈ECC：eccentric偏心EFW：electrical fusion welding电熔焊EL： elbow弯头Electric actuated stop valves 电动截止阀Electric actuated wedge gate valves 电动楔形闸阀Electric double disk parallel gate valves 电动平行式双闸板闸阀Emergency cut-off valves 紧急切断阀ENR：engineering standard工程标准EPV：elector valve -pneumatic valve 电动阀-气动阀EPDM：ethylene-propylene-diene monomer 三元乙丙橡胶ERW:electrical resistance weld 电阻焊ESV：emergency shut valve 紧急切断阀EXHV：exhaust valve 排气阀Expanded graphite 柔性石墨Expansion valve 膨胀阀FFCPL：full coupling 双承口管箍凹面/大凹面（密封面）FF：flat face全平面（密封面）FG：flexible graphite柔性石墨FHF：全硬密封面、防火阀 firesafe valve 防火阀Filter过滤器Fine steel casting iron 优质碳素钢、steel casting iron 碳素钢铸件Flange 法兰 hoop 卡箍Flage ball valves 法兰球阀Flage gate valves 法兰闸阀Flage globe valves 法兰截止阀FLB：Floating Ball浮动式球阀Flexible disc 弹性闸板FLG：Flange：法兰FLGD：法兰连接Fluorous rubber 氟橡胶FNPT：60°Female NPT Tgreads60° NPT内螺纹FP：Full Port全通径Free float type steam trap 浮球式疏水阀FRP：fiberglass-reinforced plastics玻璃纤维增加塑料（玻璃钢）FT（S-BOLT）：full Threaded stud bolt全螺纹螺柱FTV：foot valve 底阀FV：flush valve 冲洗阀GGauge valves 仪表阀GALV：galvanized 镀锌GBP：stainless stell wire&flexible graphite braided packing不锈钢丝和柔性石墨纺织填料GBPR：stainless stell wire&flexible graphite braided packing+flexible graphite packing ring不锈钢丝和柔性石墨纺织填料+柔性石墨填料环General valve 通用阀门-各工业企业中管道上普遍采用的阀门GSV：gas sampline valve 气体采样阀 gas valve 气阀Globe stop valve 球形截止阀GTV、GV：Gate valve闸阀GSK：Gasket垫片GLV、GVL：Globe valve、stop valve截止阀GMG：grooved metal gasket齿形金属垫片GO：Gear operation齿轮操作GR：grade级别GRAF：Graphite石墨Gray cast iron 灰铸铁HHand-operated valve 手动阀Hard Seal Butterfly Valver 金属密封蝶阀HAS-C：hastelloy-c哈斯合金-cHayne’s alloy 钴铬钨合金HCPL：half coupling单承口管箍HCV：hose connection valve 软管连接阀Hydraulic control valve 液压控制阀 Hydraulic valve 液压阀Hydraulic actuator 液动装置HEX：hexagon六角HF：hardening face表面硬化、硬密封面HFSV：high flow shutoff valve 高速关闭阀HFW：high frequency weld高频焊HHN：heavy hexagonal nut重型六角螺母High Temperature steel 高温钢High Temperature Pressure Power Station Gate Valves 高温高压电站闸阀High Temperature Pressure Power Station Globe Valves 高温高压电站截止阀HPS：hing pressure service高压介质HPV：high pressure valve 高压阀HW：hand wheel手轮Hydraulic relay valves 液压继动阀IID：inside diameter 内径ILRV：in-line relief valve 管道泄压阀INO：inlet open 进气阀打开Inside thread 内螺纹INV：in-line needle valve 管道针型阀IR：inner Ring内环IS：inside screw stem 内螺纹阀杆（暗杆）ISO：International Standard Organization国际标准组织IT：impact test冲击试验IV：inlet valve 进气阀JJacket 夹套JCVA：Japan Cylinder Valve Association 日本高压容器及阀门协会JS：jack screw顶丝螺纹KLLAT：lateral tee斜三通LB：pound磅Lever：手柄（手动省略）LG：large groove 大槽面（密封面）LGS：longitudinal seam纵向焊缝Lift：升降式（止回阀）Limit valve 限位阀Lining Ball Valves 衬里球阀Lining Butterfly Valves 衬里蝶阀Lining Check Valves 衬里止回阀Lining Cock 衬里二通Lining Globe Valves 衬里截止阀Lining T-Cock Valves 衬里三通旋塞阀Liquid Indicator 液位计LJ：lap joint松套连接LM：male face/large male凸面/大凸面（密封面）LM/LF：large male face/large female face大凸面/大凹面（密封面）LN：lined衬里Low Temperature steel 低温钢LP：low pressure低压LPG Pipe Fitting 液化气管件LR：long radius长半径LT：large tongue 大榫面LT/LG：large tongue and large groove大榫面和大槽面（密封面）LTS：low temperature system低温系统LTCS：low temperature Carbon sreel低温碳钢LUG：lug type凸耳型MMagnetic Co-operate Globe Valves 磁耦合截止阀Magnetism Forle Pumps 磁力泵Mains 电源Manual Oil Pumps Valves 手摇油泵Material chemical analysis and mechanical capacity 材料化学成分和机械性能Materials 材料 materials for main parts 主要零件材料MAX：maximum最大Max.Discharging Capacity 最大排水量Max.Operating Temperature 最高工作温度Max.allowable temperature 最高允许温度Max.allowable pressure 最高允许压力Me 凸面/大凸面（密封面）Mechanical capacity 机械性能Med 介质MEG：metallic envelope gasket金属包覆垫片Meter Nddfle Type Globe Valves 仪表针形截止阀MFR：manufacturer制造商MGV：electromagnetic valve 电磁阀MH：metallic hose金属软管MI：malleable lron可锻铸铁MIN：minimum最小MNPT：60°male npt thread60°NPT外螺纹Model 型号MP：medium pressure中压介质MSS：American valve&fitting fabrication standardization Association 美国阀门及配件工业制造商标椎化协会Manufacture’s Standardization Society of Valve and Fittings Industry （美）阀门与管件工业制造商标椎化协会MT：magnetic particle testing 磁粉检测MTO：material take-off材料统计NName of parts 零件名称NB：non-bonnet非阀盖NBE: nipples both end 螺纹连接、短管连接、就是加短管、两端短节NBR：nitrilr-butadiene rubber丁晴橡胶Nitrogen（N）氮NO：number编号Nominal bore 公称通经Nominal pressure 公称压力Non-slam 非撞击式Nozzle 排气口NPS：nominal pipe size管子公称尺寸NPT：national taper pipe（thread）（美国）国家锥形管螺纹NR：natural rubber天然橡胶NRV：non-return valve 止回阀Nut 螺母NV：needle valve针形阀Nylon 尼龙塑料OOblique Stop Valves 直流式截止阀OCR：octagonal ring gasket八角形环垫片OD：outside diameter外径OHV：overhead valve 顶阀OLET：out-let管嘴（支管台）One-way valves 单向阀OR：outer ring外环OS&Y：Outside Screw And Yoke支架式明杆外螺纹Outside thread 外螺纹OV：orbit valve orbit阀门OVR：oval ring gasket椭圆形环垫片Oxidant 氧化性介质PPacking：填料、包装Parallel 平行Parallel Slide Valves 浆液阀PATN：Pattem型式PBE：plain both ends两端平端面PCV：pressure control valve 压力调节阀PE：plain end平端面P&ID：piping and instrument diagram管道和仪表流程图Pintle valve 针型阀Piping 管路Piping Centrifugal Pumps 管道离心泵Piping Pumps 管道泵Piping safety valves 柱塞截止阀Piston 活塞PLSO：plate slip-on板式平焊Plunger valves 柱塞阀Pneumatic adjusting valve 气动调节阀 Pneumatic actuator 气动装置POE：plain one end一端平端面Polythene 聚乙烯PP：polyethylene聚丙烯PPL：polyphenyl对位聚苯PRESS：Hydraulic压力 pressure redulating valve 压力调节阀Pressure valve 压力（增压）阀Proposal valve 比例阀PRV、RV：pressure reducing valve 减压阀PSB：pressure sealing bonnet压力密封阀盖PSC：pressure sealing cap压力自密封阀盖/帽PSE：plain small end小端平端面PTFE：polytetrafluoroethylene聚四氟乙烯Pure aluminium 纯铝Pure cupper 纯铜PV：plug valve旋塞阀PVC：polyvinyl chloride聚氯乙烯PVDF：polyvinylidene fluoride聚偏二氟乙烯PWHT：post welding heat treatment焊后热处理QQEV：quick exhaust valve 快速排气阀Quick Draining Valves 快速排污阀RR：radius半径R2：55°taper pipe external thread 55°锥管外螺纹Rc：55°taper pipe internal thread 55°锥管内螺纹RCPL：reducing coupling 异径管箍RED：reduced 异径Regulating valve 调压阀REP：reduced port缩径Reductant 还原性介质Restrictor Valves 过流阀（节流阀）RF：raised face 突台面（密封面）RFG：reinforced flexible graphite 增强柔性石墨板Rising stem 明杆RJG：metallic ring joint gasket 金属环连接垫片RP：reinforcing pad 补强板RPTFE：reinforced poly tetrafluoroethylene 增强聚四氟乙烯RSG：reinforced sheet gasket 增强板式垫片RT：radiographic test 射线检测RTFE：增强四氟乙烯Rubber graphite board 橡胶石墨板RV：relief valve 安全阀、溢流阀 overflow valve 溢流阀SS-BOLT：S&B Spacer & Blank 垫环和插板（盲板）Safety Valves 安全阀SAW：submerged arc weld 埋弧焊SB：stud bolt 双头螺柱SB：spectacle blank 8字盲板SBR：styrene butadiene rubber 丁苯橡胶Screw 螺栓SCH：Schedule美标管件，钢管的壁厚符号、表号Screw Pumps 螺杆泵Scum Gate Valves 排渣闸阀SCV：stop check valve 截止止回阀Sealing 密封件 seal 阀座，密封面Seat testing pressure 压力气密封试验压力Self-acting valve 自动阀门：依靠介质（液体、空气、蒸汽等）本身的能力而自动动作的阀门Service fluid 工作介质Servo valve 伺服阀SEY：Side Entry侧装式SF small female face 小凹面（密封面）SFR：synthetic fiber rubber 合成纤维橡胶Shell test pressure 壳体试验压力Single Disc 单闸板 Single Disc Flat Gate Valves单闸板平板闸阀Single Opening Exhaust Valves 单口排气阀SG：small groove 小槽面（密封面）Slurry Pumps 泥浆泵SM：small male face 小凸面（密封面）SMLS：seamless无缝SNIP：swage nipple 异径短节SO：slip-on 平焊SOAV：solenoid operated air valve 电磁操纵气阀Socket 卡套Solenoid valves 电磁阀Solid 刚性SOV：shut-off valve 断流阀Specifications 性能规范Spring steel 弹簧钢SPS：spiral seam 螺旋缝SR：short radius 短半径SRT：T-Type strainer T型过滤器SRY：Y-Type strainer Y型过滤器SS：stainless steel 不锈钢SSV：surface safety valve 地表（井口）安全阀ST：steam trap 蒸汽疏水器、疏水阀STD：standard标准Steam ， condensate 蒸汽，凝结水Stem 阀杆 stem nut 阀杆螺母 stem seal（packing）填料STHU：straight-through 直通Strength testing pressure 强度试验压力Stroke 冲程，行程STL：硬质合金、斯太立合金Stop Valves 截止阀Strainer 过滤器Submerged Motor Pumps 潜水电泵（排污泵）SV：safety valve 安全阀SW：socket welding 承插焊连接SWB：seal weld bonnet 密封焊阀盖SWG：Spiral Wound Gasket缠绕式垫片SWNG：Swing Type旋启式（止回阀）TTank lorry ball valves 槽车球阀TB：threaded bonnet 螺纹连接阀盖TBE：threaded both ends 两端螺纹端T-Cock 三通TDCV：turning disc check valve 翻转阀瓣止回阀TE：threaded end 螺纹端TEMP：temperature 温度Temperature control valve 温控阀TEY：top entry 顶装式Thin gate valves 薄型闸阀THK：thickness 厚度THR：thread 螺纹Throttle valves 节流阀Tiny drag slow shut check valves 微阻缓闭止回阀TLD：倾斜式阀板（瓣）TOE：therad one end一端螺纹端Triple（tee）valves 三通阀 3 way valveTRIM:内件TRI-ECC：Tri-offset：三偏心（蝶阀）TRUB：trunion ball 固定式球阀TV：throttle valve 节流阀TVV：thermal vacuum valve 温控真空作用阀Two-way valves 两通阀TWV：Tee valve 三通阀TZM：titanium-zirconium-molybdenum alloy 钽-锆-钼合金UUG：Underground 地下Under water pumps 液下泵USV：underwater safety valve 水下安全阀UT：Ultrasonic Test 超声波检测VVacuum pumps 水力喷射器（真空泵）Val：valve 阀门Valve code 阀门型号 valve typeVB：valve body 阀体VB：valve box 阀箱Vertical lift check valves 立式止回阀Vl：valve 阀门VLSO：valve stem leak-off 阀杆漏泄WWAF：Wafer对夹连接wafer check valves 对夹式止回阀water，oil，steam 谁，温度，气waterworks valve 水阀wafer plate valves 对夹式蝶板阀wafer type butterfly valves with rubber itning 对夹式衬胶蝶阀waste seal gate valves 水封闸阀WB：Welding Bonnet 焊接连接阀盖Wedge disc 闸板wedge 楔式 welding 焊接Wedge gate valves 楔式闸阀WN：welding neck 对焊法兰颈Worm Gear涡轮WQF：weld factor 焊缝系数WRC：wire cloth 金属丝编织物XXS加厚管XXS特厚管、壁厚代号YY type and cylinder filters Y型筒过滤器YV：wye valve Y型阀，阀杆直流式阀Z一般刚性闸板使用在温度不太高，压力不太大的场合，弹性闸板使用在高温高压或者对密封要求比较高的场合。