三通柱塞閥三通柱塞閥三通柱塞閥三通柱塞閥三通柱塞閥三通柱塞閥三通柱塞閥三通柱塞閥

【雙柱三通柱塞閥】簡介

   上海申弘閥門有限公司主營閥門有：減壓閥(氣體減壓閥,可調(diào)式減壓閥,波紋管減壓閥,活塞式減壓閥,蒸汽減壓閥,先導(dǎo)式減壓閥,空氣減壓閥,氮?dú)鉁p壓閥,水用減壓閥,自力式減壓閥,比例減壓閥) 雙柱三通柱塞閥在石油、化工、化肥、冶金、制藥等生產(chǎn)環(huán)節(jié)需要將流體從一條管線快速切換到另一條管線，或者將一條管線的流體同時分配給另外兩面三刀條管線，以滿足工藝流程的要求。對此采用三通柱塞閥即可以實(shí)現(xiàn)。

在截止閥管件行業(yè)中，根據(jù)公稱壓力PN的大小，我們可以把公稱壓力小于等于1.6MPa的閥門為低壓閥門，公稱壓力為2.5MPa、4.0MPa、6.4MPa的閥門為中壓閥門，同時我們也經(jīng)常會提到1.6MPa壓力、2.5MPa壓力和多少公斤壓力、多少個標(biāo)準(zhǔn)大氣壓等之類的術(shù)語，那么1MPa壓力到底有多大壓強(qiáng)，1MPa壓力等于多少公斤壓力呢蒸汽壓力為2.5㎏是表示2.5kg/cm2，是表示的單位面積上的壓力--壓強(qiáng)，通常俗稱為2.5kg壓力。新的表示方法約為0.25MPa。
換算關(guān)系：1kg/cm2=0.098MPa，因此壓力2.5kg/cm2=0.245MP，可約等于0.25MPa.ISO標(biāo)準(zhǔn)帕斯卡(1Pa=1N/m2)
1公斤力/平方厘米=98.0665千帕
粗算時常按1公斤力=10N 則:
1公斤力/平方厘米=100千帕=1bar=0.1MPa
10公斤力/平方厘米=1000千帕=1MPa
公斤的單位是質(zhì)量單位
MPA是壓力的單位
質(zhì)量m=壓力/重力加速度
壓力p=壓力/面積
這是他們之間的關(guān)系

1公斤壓力指的是1公斤重的物體作用為1cm2面積上所產(chǎn)生的壓強(qiáng)，可以想像一下，1公斤重（比兩瓶一元錢的康師傅礦泉水重略輕）的物體全部壓在一個手指頭上所產(chǎn)生的壓強(qiáng)。  我們來計算一下， 1MPa=1×106Pa 1Pa=1N/1m2  1MPa=106N/m2=106N/104cm2=100N/cm2  重力加速度g約等于9.8 N/KG，為方便計算，g按整數(shù)10。 1KG的物體重力=1KG×10N/KG=10N  1公斤壓力是1KG的重力作用于1cm2面積上產(chǎn)生的壓強(qiáng)，即 1公斤壓力=10N/cm2 1MPa=100N/cm2=10×10N/cm2 即1MPa壓力等于10公斤壓力。
單位說明：  Pa，壓強(qiáng)單位，中文名稱為“帕斯卡”，簡稱“帕”，即牛/平方米，1帕=1牛/平方米  M，數(shù)量單位，M即million，數(shù)值為一百萬  N，物理力學(xué)單位，簡稱牛，是一種衡量力的大小的單位，兩個雞蛋的重力約為1N（0.1千克的物體的重量）  m，長度單位，米 m2，面積單位，平方米 cm2，面積單位，平方厘米 KG，重量單位，千克，公斤

減壓閥標(biāo)準(zhǔn)一覽表 
標(biāo)準(zhǔn)編號  標(biāo)準(zhǔn)中文名稱  標(biāo)準(zhǔn)英文名稱  JB/T10367-2002  液壓減壓閥      GB/T12245-1989  減壓閥性能試驗(yàn)方法  Methods of performance test for pressure reducing valves GB/T12246-1989  先導(dǎo)式減壓閥  Pilot-operated reducing valves  GB/T12244-1989  減壓閥一般要求  General specification for pressure reducing valves GB/T1852-1993  船用法蘭鑄鋼蒸汽減壓閥  Marine steel flanged steam pressure reducing valves  GB10868-1989  電站減溫減壓閥技術(shù)條件   Specification of the steam converting valve for fossil power stations JB/T7376-1994(2005復(fù)審)   氣動空氣減壓閥 技術(shù)條件       JB/T7310-1994(2005復(fù)審)   裝載機(jī)用減壓閥式先導(dǎo)閥     JB/T53361-1994  液壓減壓閥產(chǎn)品質(zhì)量分等(試行)    JB/T53265-1999  先導(dǎo)式減壓閥 產(chǎn)品質(zhì)量分等     JB/T2205-2000  減壓閥結(jié)構(gòu)長度       NF P43-035-2000   建筑閥門.供水減壓閥和復(fù)合供水減壓閥.要求和試驗(yàn)   (Building valves - Water pressure reducing valves and combination water pressure reducing valves - Requirements and tests.)  NF A84-420-1991   氣焊設(shè)備和有關(guān)方法.減壓閥入品接頭.尺寸   (Equipment for gas welding and allied processes. Pressure regulators inlet connections. Dimensions.)  NF M88-773-1981   商用丁烷容器裝置.低壓固定調(diào)節(jié)的家用商品丁烷減壓閥   (INSTALLATIONS BURNING COMMERCIAL BUTANE. PRESSURE REGULATOR TRIP,LOW-PRESSURE FIXED FLOW,FOR COMMERCIAL BUTANE FOR DOMESTIC USE.)  NF M88-775-1990   裝液態(tài)碳?xì)浠衔锏匿撈?可移動部分和半移動部分用高壓可調(diào)減壓閥.功能.標(biāo)記、試驗(yàn)   (LIQUEFIED HYDROCARBONS SYSTEMS IN CYLINDERS. FIXED  ADJUSTEMENT,HIGH PRESSURE REGULATOR FOR AND SEMI- PREMISES. CONSTRUCTION. OPERATION, MARKING,TESTS.)  NF M88-737-2003   可運(yùn)輸可再填充液化石油氣瓶用減壓閥   (Pressure relief valves for transportable refillable cylinders for Liquefied Petroleum Gas (LPG).)  NF E48-423-2001   液壓傳動.減壓閥、順序閥、卸載閥、 節(jié)流閥和止回閥.裝配面   (Hydraulic fluid power - Pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves -  Mounting surfaces.)  ANSI/ASSE 1003-1995  家用供水系統(tǒng)用減壓閥  (Water Pressure Reducing Valves for Domestic Water Supply Systems)  ANSI/ASSE 1046-1990  熱膨脹減壓閥  (Thermal Expansion Relief Valve)  ANSI Z 21.22a-1999  減壓閥和真空減壓閥  (Pressure Relief Valves and Vacuum Relief Valves)  ANSI Z 21.22b-2001  熱水供應(yīng)系統(tǒng)的減壓閥  (Relief Valves for Hot Water Supply Systems (same as CSA 4.4b))  ANSI/ASTM F 1508-1997   用于蒸汽、氣體和液體設(shè)備的角型減壓閥規(guī)范   (Specification for Angle Style, Pressure Relief Valves for Steam, Gas, and Liquid Services)  ASME A112.4.1-1993  熱水器減壓閥排水管  (Water heater relief valve drain tubes) ASME PTC 25.3-1988  安全和減壓閥   (Safety and relief valves) 

ASTM E 1008-2003  地?zé)岷推渌邷匾后w設(shè)備用減壓閥體的安裝、檢驗(yàn)及維修用標(biāo)準(zhǔn)實(shí)施規(guī)范   (Standard Practice for Installation, Inspection, and Maintenance  of Valve-body Pressure-relief Methods for Geothermal and Other  High-Temperature Liquid Applications)  標(biāo)準(zhǔn)編號  標(biāo)準(zhǔn)中文名稱  標(biāo)準(zhǔn)英文名稱  ASTM F 1795-2000   空氣或氮?dú)庀到y(tǒng)用減壓閥標(biāo)準(zhǔn)規(guī)范   (Standard Specification for Pressure-Reducing Valves for Air or Nitrogen Systems)  ASTM F 1565-2000  蒸汽設(shè)備用減壓閥標(biāo)準(zhǔn)規(guī)范   (Standard Specification for Pressure-Reducing Valves for Steam Service)  ASTM F 1508-1996   用于蒸汽、氣體和液體設(shè)備的角型減壓閥標(biāo)準(zhǔn)規(guī)范   (Standard Specification for Angle Style, Pressure Relief Valves for Steam, Gas and Liquid Services) ASTM F 1370-1992   船上給水系統(tǒng)用減壓閥   (Standard Specification for Pressure-Reducing Valves for Water Systems, Shipboard)  BS EN 1567-2000   建筑物閥門.減壓閥和組合減壓閥.要求和試驗(yàn)   (Building valves - Water pressure reducing valves and combination water reducing valves - Requirements and tests)  BS ISO 5781-2000   液壓傳動.減壓閥、順序閥、卸荷閥、節(jié)流閥和止回閥.安裝面   (Hydraulic fluid power - Pressure reducing valves, sequence valves, unloading valves, throttle valves and check valves - Mounting surfaces)  BS ISO 6264-1998  液壓傳動.減壓閥.裝配面   (Hydraulic fluid power - Pressure-relief valves - Mounting surfaces)  prEN 14071-2000   液化石油氣（LPG）罐的減壓閥 輔助設(shè)備   Pressure relief valves for LPG tanks - Ancillary equipment  BS 6283-2-1991   熱水系統(tǒng)中使用的安全和控制裝置.壓力范圍從1bar到10bar溫度減壓閥規(guī)范   (Safety and control devices for use in hot water systems  - Specifications for temperature relief valves for pressures from 1 bar to 10 bar)  BS 6283-4-1991   熱水系統(tǒng)中使用的安全和控制裝置.第 4部分:zui大供給壓力為12bar,標(biāo)準(zhǔn)尺寸包括DN50的微量繃緊減壓閥規(guī)范   (Safety and control devices for use in hot water systems - Specification for drop-tight pressure reducing valves of nominal size up to and including DN 50 for supply pressures up to and including 12 ba)  DIN EN 13953-2003   液化石油氣(LPG)用可運(yùn)輸?shù)目稍俪涫絻馄康臏p壓閥   (Pressure relief valves for transportable refillable cylinders for Liquefied Petroleum Gas (LPG); German version EN 13953:2003)  DIN EN 1567-2000   建筑閥門.水減壓閥和組合水減壓閥.要求和試驗(yàn)   (Building valves - Water pressure reducing valves and combination water pressure reducing valves - Requirements and tests; German version EN 1567:1999) JIS B8652-2002   比例電動液壓減壓閥及安全閥的試驗(yàn)方法   (Test methods for electro-hydraulic proportional pressure relief valves and electro-hydraulic  proportional pressure reducing and relieving valves)  JIS F0504-1989  船上機(jī)械裝置用減壓閥的應(yīng)用和壓力調(diào)節(jié)  (Application and setting pressure of relief valves for ships' machinery)  UL 1478-1995  消防泵減壓閥   (Fire pumps relief valves )  UL 1468-1995   防火設(shè)備用直接控制的減壓閥和壓力(Direct acting pressure reducing and pressure 
控制閥   restricting valves )  JIS B8666-2001  液壓動力.減壓閥.安裝表面  (Hydraulic fluid power -- Pressure-relief valves -- Mounting surfaces)  JIS B8372-1994   氣動裝置用減壓閥   (PRESSURE REDUCING VALVES FOR PNEUMATIC USE) JIS B8664-2001   液壓動力.壓力控制閥(不包括減壓 閥)、順序活門、釋荷閥、節(jié)流閥和止回閥.安裝表面   (Hydraulic fluid power -- Pressure-control valves (excluding pressure-relief valves), sequence valves, unloading valves, throttle valves and check valves -- Mounting surfaces)  JIS B8410 AMD 1-2003  水管用減壓閥(修改件1)  (Pressure reducing valves for water works (Amendment 1))  JIS B8651-2002  比例電動液壓減壓閥試驗(yàn)方法  (Test methods for electro-hydraulic proportional pressure relief valves)  JIS B8410-1999   水管用減壓閥   (Pressure reducing valves for water works) ISO 15500-12-2001   道路車輛.壓縮天然氣(CNG)燃料系統(tǒng)元部件.第12部分:減壓閥   (Road vehicles - Compressed natural gas (CNG) fuel system components - Part 12: Pressure relief valve (PRV))  ISO 6264-1998  液壓傳動.減壓閥.裝配面   (Hydraulic fluid power - Pressure-relief valves - Mounting surfaces)  ISO 5781-2000   液壓傳動.減壓閥、順序閥、卸荷閥、節(jié)流閥和止回閥.裝配面  (Hydraulic fluid power - Pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves - Mounting surfaces) GB/T10868-2005   電站減溫減壓閥    

【雙柱三通柱塞閥】主要連接、結(jié)構(gòu)尺寸：