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H74H对夹单瓣旋启式止回阀

发布日期:2015-11-29    点击数: H74H对夹单瓣旋启式止回阀
产品名称:H74H对夹单瓣旋启式止回阀
产品型号:H74H
品牌:金豪阀门

H74HDUIJIADANBANXUANQISHIZHIHUIFAXIANGXIZILIAO:

YI、H74HDUIJIADANBANXUANQISHIZHIHUIFAGAISHU:

    H72DUIJIASHIXUANQISHIZHIHUIFASHIZHIHUIFAZHONGJUYOUDUANJIEGOUDEYIZHONG,ZHUYAOSHIYONGYUGEZHONGYETIGUANDAOXITONG,JUYOUMIFENGXINGNENGHAO,ZHANYONGKONGJIANXIAO,ZHONGLIANGTEQING,JIEGOUJINCOU,WEIXIUJIANDANFANGBIANDENGDAOTEDIAN。

应用范围:
对夹升降式止回阀适用于公称压力PN10~PN420、Class150~Class2500;公称通径DN15~DN1200、NPS1/2~48;工 作温度-196℃~540℃的各种管路上,用于防止介质倒流。通过选用不同的材质,对夹式止回阀可适用于石化、冶金、电力、轻工、食品等行业中水、蒸汽、 油品、硝酸、醋酸、强氧化性介质及尿素等多种介质。 

二、H74H对夹单瓣旋启式止回阀执行标准:
设计制造:JB/T8937   
结构长度:JB/T8937   
配管法兰:JB/T74     
试验与检验:JB/T9092-1999
产品型号:H74H、H74W
尺寸范围:DN15~DN300
压力等级:1.6~6.4MPa
壳体材料:碳钢、不锈钢
适用介质:气体、液体、蒸汽
操作方式:自动

SAN、H74HDUIJIADANBANXUANQISHIZHIHUIFAZHUYAOLINGBUJIAN:

零件名称阀体、阀瓣密封圈
材料碳钢、不锈钢、铜橡胶、三元丙橡胶、聚四氟乙烯、不锈钢

SI、H74HDUIJIADANBANXUANQISHIZHIHUIFAANZHUANGCHICUN:

公称通径阀门全开启
     时的流体阻
     力系数ξ
常温下阀门全开启时的水流量系数流体的流向
DNNPSKv(m3/h)Cv(U.S)Cv(U.K)
开启压力近似值KPa
5022.663746221
6521/22.410912810721
8032.317220116921
10042.028933828321
12551.847655746621
15061.575087873521
20081.314321675140321
250101.223302726228321
300121.036764301360221
350140.952746171516921
400160.873068548716031
450180.8924610818906131
500200.811415133561118731
600240.717573205601722231
700280.723919279852344141
750300.727458321262690941
800320.731241365523061641
900360.739539462613874841
1000400.748814571124783841
1050420.753817629665274141
1200480.770292822426888641

开心彩票网WU、H74HDUIJIADANBANXUANQISHIZHIHUIFAZHUYAOWAIXINGCHICUN:

公称通径DLD
I型II型PN1.0PN1.6PN2.5PN4.0
50251522109109109109
65381522129129129129
80461522144144144144
100721524164164170170
125951626194194186186
1501141929221221226226
2001402943275275283293
2501882943330331343355
3002163850380386403420
3502634152440446460477
4003055162491498517549
4503565162541558567574
5004066580596620627613
6004827090698737734750

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