【ZCG型高溫電磁閥】產(chǎn)品特點(diǎn)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(shí)我們也經(jīng)常會(huì)提到1.6MPa壓力、2.5MPa壓力和多少公斤壓力、多少個(gè)標(biāo)準(zhǔn)大氣壓等之類的術(shù)語(yǔ)，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(shí)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(gè)手指頭上所產(chǎn)生的壓強(qiáng)。 我們來計(jì)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(jì)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(jiǎn)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(jiǎn)稱牛，是一種衡量力的大小的單位，兩個(gè)雞蛋的重力約為1N（0.1千克的物體的重量） m，長(zhǎng)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(hào) 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(dòng)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(zhǎng)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(dòng)部分和半移動(dòng)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(dòng).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(hào) 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(dòng).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(dòng).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?chǔ)氣瓶的減壓閥 (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(dòng)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(dòng)力.減壓閥.安裝表面 (Hydraulic fluid power -- Pressure-relief valves -- Mounting surfaces) JIS B8372-1994 氣動(dòng)裝置用減壓閥 (PRESSURE REDUCING VALVES FOR PNEUMATIC USE) JIS B8664-2001 液壓動(dòng)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(dòng)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(dòng).減壓閥.裝配面 (Hydraulic fluid power - Pressure-relief valves - Mounting surfaces) ISO 5781-2000 液壓傳動(dòng).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 |
