立式止回阀

H42立式止回阀
H42正常处于关闭状态，由于管线中进口端介质的压力作用，而克服弹簧阻力使阀门开启。当进口端介质压力低于出口端时，弹簧将阀芯推向阀座而使阀门关闭，阻止介质逆流，故起止回作用。
　　 H42H碳钢由于采用弹簧支撑阀芯，故采用立式安装或卧式装均可。
型号： H42W-25P H42W-25R H42W-40P H42W-40R H42Y-40
公称压力PN(M

H42立式止回阀

H42立式止回阀正常处于关闭状态，由于管线中进口端介质的压力作用，而克服弹簧阻力使阀门开启。当进口端介质压力低于出口端时，弹簧将阀芯推向阀座而使阀门关闭，阻止介质逆流，故起止回作用。 
　　   H42H碳钢由于采用弹簧支撑阀芯，故采用立式安装或卧式装均可。

型号： H42W-25P H42W-25R H42W-40P H42W-40R H42Y-40

公称压力PN(MPa)：2.5 4.0

适用温度(℃)：≤200

适用介质：硝酸类醋酸类水、油品。

621卫生级气动蝶阀http://jihuiv.com/goods/show/208.asp

D671F46气动衬氟蝶阀http://jihuiv.com/goods/show/207.aspx

D641F46气动衬氟蝶阀http://jihuiv.com/goods/show/206.aspx

D671J气动衬胶对夹蝶阀http://jihuiv.com/goods/show/203.aspx

D643H/F气动硬密封蝶阀http://jihuiv.com/goods/show/202.aspx

Q947固定式电动球阀http://jihuiv.com/goods/show/224.aspx

电动球阀:

Q944电动三通球阀http://jihuiv.com/goods/show/216.aspx

Q914H电动三通内螺纹球阀http://jihuiv.com/goods/show/217.aspx

Q981卫生级电动球阀http://jihuiv.com/goods/show/222.aspx

Q971电动对夹球阀http://jihuiv.com/goods/show/223.aspx

Q947固定式电动球阀http://jihuiv.com/goods/show/224.aspx

Q941电动法兰球阀http://jihuiv.com/goods/show/225.aspx

Q961N电动高压球阀http://jihuiv.com/goods/show/226.aspx

Q941-FB电动防爆球阀http://jihuiv.com/goods/show/229.aspx

Q941F46电动衬氟球阀http://jihuiv.com/goods/show/230.aspx

Q911内螺纹电动球阀http://jihuiv.com/goods/show/231.aspx

PQ947电动偏心半球阀http://jihuiv.com/goods/show/232.aspx

Q941M电动高温球阀http://jihuiv.com/goods/show/253.aspx

Q911S电动塑料球阀http://jihuiv.com/goods/show/221.aspx

ZAJQ电动调节球阀http://jihuiv.com/goods/show/220.aspx

VQ947电动V型调节球阀http://jihuiv.com/goods/show/219.aspx

ZARO电动切断球阀http://jihuiv.com/goods/show/218.aspx

气动球阀:

Q614H气动三通内螺纹球阀http://www.jihuiv.com/goods/show/234.aspx

ZSHO气动切断球阀http://www.jihuiv.com/goods/show/236.aspx

ZSJQ气动调节球阀http://www.jihuiv.com/goods/show/235.aspx

ZSHO气动切断球阀http://www.jihuiv.com/goods/show/237.aspx

VQ647气动V型球阀http://www.jihuiv.com/goods/show/238.aspx

SQ611气动塑料球阀http://www.jihuiv.com/goods/show/239.aspx

Q645气动三通球阀http://www.jihuiv.com/goods/show/240.aspx

Q681F气动卫生级球阀http://www.jihuiv.com/goods/show/241.aspx

Q671气动对夹球阀http://www.jihuiv.com/goods/show/242.aspx

647气动固定式球阀http://www.jihuiv.com/goods/show/243.aspx

Q641气动法兰球阀http://www.jihuiv.com/goods/show/244.aspx

Q641气动法兰球阀http://www.jihuiv.com/goods/show/245.aspx

Q641F46气动衬氟球阀http://www.jihuiv.com/goods/show/246.aspx

Q611内螺纹气动球阀http://www.jihuiv.com/goods/show/247.aspx

PQ647气动偏心半球阀http://www.jihuiv.com/goods/show/248.aspx

Q641H气动高压球阀http://www.jihuiv.com/goods/show/249.aspx

GQ641H气动高温球阀http://www.jihuiv.com/goods/show/250.aspx

GQ641气动高温球阀http://www.jihuiv.com/goods/show/251.aspx

BQ641气动保温球阀(法兰式)http://www.jihuiv.com/goods/show/252.aspx

电动闸阀:

Z973X电动浆液闸阀http://www.jihuiv.com/goods/show/254.aspx

Z942W电动煤气闸阀http://www.jihuiv.com/goods/show/263.aspx

Z943F电动平板闸阀http://www.jihuiv.com/goods/show/262.aspx

Z945T电动暗杆闸阀http://www.jihuiv.com/goods/show/261.aspx

Z945X电动弹性座封闸阀http://www.jihuiv.com/goods/show/260.aspx

PZ941H电动排渣闸阀http://www.jihuiv.com/goods/show/259.aspx

Z960Y电动高压焊接闸阀http://www.jihuiv.com/goods/show/258.aspx

Z940Y电动高压闸阀http://www.jihuiv.com/goods/show/257.aspx

PZ973H电动刀型闸阀http://www.jihuiv.com/goods/show/256.aspx

Z941H电动法兰闸阀http://www.jihuiv.com/goods/show/255.aspx

电动调节阀:

ZD(R)SG电动隔膜调节阀http://www.jihuiv.com/goods/show/277.aspx

ZD(R)HJP精小型电动调节阀http://www.jihuiv.com/goods/show/278.aspx

ZRZP智能电动调节阀http://www.jihuiv.com/goods/show/280.aspx

ZD(R)SP/M-GW电动高温调节阀http://www.jihuiv.com/goods/show/269.aspx

ZD(R)SPF46电动衬氟调节阀http://www.jihuiv.com/goods/show/273.aspx

ZAZP电动调节阀http://www.jihuiv.com/goods/show/279.aspx

ZD(R)SM电动套筒调节阀http://www.jihuiv.com/goods/show/275.aspx

ZD(R)SP/M-FB电动防爆调节阀http://www.jihuiv.com/goods/show/267.aspx

ZD(R)SP/M-FB-DW电动低温调节阀http://www.jihuiv.com/goods/show/270.aspx

ZRSP/M/L-GY电动高压调节阀http://www.jihuiv.com/goods/show/265.aspx

ZRSP/M-WD电动温度调节阀 http://www.jihuiv.com/goods/show/264.aspx

ZRSF(H)电动三通调节阀http://www.jihuiv.com/goods/show/266.aspx

ZDSW电动小流量调节阀http://www.jihuiv.com/goods/show/268.aspx

ZD(R)SP/M-BW电动保温调节阀http://www.jihuiv.com/goods/show/271.aspx

ZD(R)SN电动双座调节阀http://www.jihuiv.com/goods/show/274.aspx

ZD(R)SL电动笼式调节阀http://www.jihuiv.com/goods/show/276.aspx

ZD(R)SP/M-BWG电动波纹管调节阀http://www.jihuiv.com/goods/show/272.aspx

通用手动蝶阀:

D343H 法兰蝶阀http://www.jihuiv.com/goods/show/204.aspx

D43H 法兰蝶阀http://www.jihuiv.com/goods/show/205.aspx

D363H焊接式硬密封蝶阀http://www.jihuiv.com/goods/show/200.aspx

D743P不锈钢对夹蝶阀http://www.jihuiv.com/goods/show/281.aspx

D371F46蜗轮对夹式衬氟蝶阀http://www.jihuiv.com/goods/show/282.aspx

D341涡轮衬胶蝶阀http://www.jihuiv.com/goods/show/283.aspx

D71F对夹衬氟蝶阀http://www.jihuiv.com/goods/show/284.aspx

D73H三偏心对夹硬密封蝶阀http://www.jihuiv.com/goods/111/1.aspx

D343H对夹式硬密封蝶阀http://www.jihuiv.com/goods/show/292.aspx

D373H凸耳式硬密封美标蝶阀http://www.jihuiv.com/goods/show/286.aspx

D71J手动对夹式衬胶蝶阀http://www.jihuiv.com/goods/show/287.aspx

D343W不锈钢法

兰蝶阀 http://www.jihuiv.com/goods/show/288.aspx

D371X对夹式蜗轮传动软密封蝶阀http://www.jihuiv.com/goods/show/289.aspx

D341X软密封蝶阀http://www.jihuiv.com/goods/show/290.aspx

D341W涡轮通风蝶阀http://www.jihuiv.com/goods/show/291.aspx

三偏心多层次硬密封蝶阀http://www.jihuiv.com/goods/show/293.aspx

卫生级蝶阀http://www.jihuiv.com/goods/show/294.aspx

DS343H双向压蝶阀http://www.jihuiv.com/goods/show/296.aspx

通用球阀：

Q41P手动球阀 http://jihuiv.com/goods/show/326.aspx

BQ41H保温球阀 http://jihuiv.com/goods/show/325.aspx

Q11H三片式内螺纹球阀 http://jihuiv.com/goods/show/324.aspx

Q341F衬氟球阀 http://jihuiv.com/goods/show/323.aspx

Q41高压浮动球阀 http://jihuiv.com/goods/show/322.aspx

Q341H高压固定球阀 http://jihuiv.com/goods/show/321.aspx

Q45H三通内螺纹球阀 http://jihuiv.com/goods/show/320.aspx

Q61H三片式焊接球阀 http://jihuiv.com/goods/show/319.aspx

PQ341H偏心半球阀 http://jihuiv.com/goods/show/318.aspx

Q47F法兰式固定球阀 http://jihuiv.com/goods/show/317.aspx

Q361H全焊接球阀 http://jihuiv.com/goods/show/315.aspx

Q341H不锈钢浮动球阀 http://jihuiv.com/goods/show/314.aspx

Q47H不锈钢固定球阀  http://jihuiv.com/goods/show/313.aspx

Q41H涡轮煤气球阀  http://jihuiv.com/goods/show/312.aspx

Q45H三通卫生球阀  http://jihuiv.com/goods/show/311.aspx

Q341H三段式涡轮球阀  http://jihuiv.com/goods/show/310.aspx

Q341H涡轮球阀  http://jihuiv.com/goods/show/309.aspx

Q41P不锈钢球阀  http://jihuiv.com/goods/show/308.aspx

Q41H金属硬密封球阀  http://jihuiv.com/goods/show/307.aspx

Q41H三段式球阀 http://jihuiv.com/goods/show/306.aspx

Q363H焊接涡轮球阀 http://jihuiv.com/goods/show/305.aspx

Q71H对夹球阀 http://jihuiv.com/goods/show/327.aspx

Q45H三通球阀 http://jihuiv.com/goods/show/304.aspx