閥簡(jiǎn)介上海申弘閥門有限公司主營(yíng)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)柱塞式放料閥用于對(duì)反應(yīng)器,各種容器以及管線實(shí)放放料和無死區(qū)關(guān)斷操作。對(duì)于需要閥門全排量工作系統(tǒng),柱塞閥比之放料閥更適用。由于柱塞在閥腔內(nèi)移動(dòng)的過程也是清潔閥腔的過程,因此,柱塞閥可應(yīng)用于漿體工藝介質(zhì)。設(shè)計(jì)多樣化,可與各種容器的出口對(duì)接。管線取樣和放料。低溫應(yīng)用配備聚氟乙烯、石墨徑向密封,高溫應(yīng)用采取金屬密封。柱塞式放料閥各種操作方式可供選擇,例如手動(dòng)、氣動(dòng)(彈簧復(fù)位式、雙作用式、帶手輪和不帶手輪)、電動(dòng)、液動(dòng)等。只要柱塞*離開流道,柱塞閥就可提供全排量狀態(tài)工作。本標(biāo)準(zhǔn)規(guī)定了手動(dòng)柱塞式不銹鋼放料閥的類型,技術(shù)要求及標(biāo)記。本標(biāo)準(zhǔn)適用于化工、石油化工裝置所帶有攪拌器的反應(yīng)釜之放料及取樣。
【柱塞式放料】能發(fā)生的故障,原因及消除方法在截止閥管件行業(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,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
【柱塞式放料】主要零件材料
1、 閥體
2、 支架:zg1cr18n9ti、cf8(304)、、cf3(304l)、zg1cr18ni2mo2ti、cf8(316l)、wc8
3、 閥桿
4、 活塞筒
5、 缸套:1cr18ni9ti、、00cr19ni11(00cr19ni11(304l) 1cr18ni2mo2ti 2cr13、cr17ni14m02(316l)、、00cr17ni14m02(316l)
6、 填料:石墨
7、 閥芯蓋:銅
8、 填料壓蓋:wcb、1cr18ni9ti、0cr18ni90cr18ni9(304)、00cr19ni11(304l)、 1cr18ni12moti 2cr132cr13、0cr17ni12mo02(316l)
9、手輪:可鍛鑄鐵、球墨鑄鐵或鋼
【柱塞式放料】耐腐蝕性