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供应信息-供应厂家直销★康豪★H71W不锈钢对夹升降式止回阀 |
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H71W止回阀由于阀体、阀瓣、阀盖等组成，阀瓣在液压的作用下打开，并限制在阀盖的凸台上，流体经阀瓣外边通过，当出口压力大于进口压力是，阀瓣就在液压力和弹簧力的作用下关闭制止了流体的返流。
一、流体力学性能：H71对夹双瓣旋启式止回阀的流体阻力系数、流量系数及开启压力：
公称通径
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阀门全开启时的流体阻力系数
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常温下阀门全开启时的水讲E量系数
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流体的流向
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DN
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NPS
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Kv(m3=／h)
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CV(U.S)
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CV(U.K)
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↑
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↓
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→
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开启压力近似值KPa
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15
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1/2
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6.4
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2.6
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3.0
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2.5
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3
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2
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2.5
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20
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3/4
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5.1
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6.4
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7.5
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6.3
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3
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2
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2.5
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25
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4
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4.1
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12.6
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14.8
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12.3
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3
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2
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2.5
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32
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11/4
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4.1
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19.7
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23.1
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19.3
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3
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2
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2.5
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40
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11/2
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3.8
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29.5
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63.9
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28.9
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3
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2
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2.5
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50
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2
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3.5
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54.6
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99.9
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63.5
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3
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2
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2.5
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65
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21/2
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3.5
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85.4
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150
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83.7
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3
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2
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2.5
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80
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3
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3.2
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128
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286
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125
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3
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2
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2.5
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100
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4
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2.8
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244
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286
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249
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3
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2
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2.5
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125
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5
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2.9
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375
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439
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368
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3
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1
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2.2
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150
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6
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3.1
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522
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611
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512
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3
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1
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2.2
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200
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8
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3.2
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915
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1070
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897
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3
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1
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2.2
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二、对夹升降式止回阀的型号、材料及主要参数：
配管法兰
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公称压力
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常规产品型号
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JB/T74-90
GB9112-9124、HG20592-20614
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PN1.0MPa
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H71H-10C
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H71W10P
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H71W10P8
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H71W10P3
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H71W10R
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H71W10R8
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H71W10R3
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PN1.6MPa
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H71H-16C
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H71H-16P
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H71H-16P8
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H71H-16P3
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H71H-16R
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H71H-16R8
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H71H-16R3
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PN2.5MPa
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H71H-25
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H71H-25P
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H71H-25P8
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H71H-25P3
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H71H-25R
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H71H-25R8
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H71H-25R3
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PN4.0MPa
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H71H-40
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H71H-40P
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H71H-40P8
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H71H-40P3
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H71H-40R
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H71H-40R8
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H71H-40R3
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PN6.3MPa
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H71H-63
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H71H-63P
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H71H-63P8
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H71H-63P3
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H71H-63R
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H71H-63R8
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H71H-63R3
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PN10.0MPa
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H71H-100
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H71H-100P
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H71H-100P8
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H71H-100P3
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H71H-100R
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H71H-100R8
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H71H-100R3
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PN16.0MPa
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H71H-160
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H71H-160P
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H71H-160P8
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H71H-160P3
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H71H-160R
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H71H-160R8
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H71H-160R3
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CB/T9112-9124、HG20615-20635、SH3406
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PN2.0MPa
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H71H-20C
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-
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H71H-20P8
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H71H-20P3
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-
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H71H-20R8
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H71H-20R3
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PN5.0MPa
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H71H-50
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-
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H71H-50P8
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H71H-50P3
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-
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H71H-50R8
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H71H-50R3
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PN11.0MPa
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H71H-110
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-
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H71H-110P8
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H71H-110P3
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-
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H71H-110R8
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H71H-110R3
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PN15.0MPa
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H71H-150
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-
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H71H-150P8
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H71H-150P3
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-
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H71H-150R8
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H71H-150R3
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ANSIB16.5
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Class150
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H71H-A1C
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-
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H71H-A1CP8
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H71H-A1P3
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-
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H71H-A1R8
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H71H-A1R3
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Class300
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H71H-A3
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-
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H71H-A3P8
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H71H-A3P3
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-
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H71H-A3R8
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H71H-A3R3
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Class600
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H71H-A6
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-
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H71H-A6P8
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H71H-A6P3
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-
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H71H-A6R8
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H71H-A6R3
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Class900
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H71H-A9
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-
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H71H-A9P8
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H71H-A9P3
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-
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H71H-A9R8
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H71H-A9R3
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主要
零件
材料
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阀体
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WCB(A105)
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ZG1Cr18Ni9Ti
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CF8(304)
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CF3(304L)
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ZG1Cr18Ni12Mo2Ti
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CF8M(316)
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CF3M(316L)
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阀瓣
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2Cr13
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1Cr18Ni9Ti
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0Cr18Ni9
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00Cr19Ni10
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1Cr18Ni12TMo2i
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00Cr17Ni12Mo2
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00Cr17Ni14Mo2
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压圈
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2Cr13
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1Cr18Ni9Ti
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0Cr18Ni9
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00Cr19Ni10
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1Cr18Ni12TMo2i
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00Cr17Ni12Mo2
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00Cr17Ni14Mo2
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弹簧
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0Cr18Ni9
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0Cr18Ni9
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0Cr18Ni9
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00Cr19Ni10
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1Cr18Ni12TMo2i
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00Cr17Ni12Mo2
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00Cr17Ni14Mo2
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适用工况
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适月介质
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水、蒸汽、
油品等
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硝酸等腐蚀性介质
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强氧化性介质
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醋酸等腐蚀性介质
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屎素等腐
蚀性介质
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适用温度（℃）
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-29～425
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-196～540
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-196～425
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-196～540
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-196～455
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注：本表为常规对夹式止回阀的型号编制、主要零件材料及适用工况，其他要求及其型号编制参见对夹式止回阀型号编制方法。
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三、H71对夹升降式止回阀的主要尺寸及重量：
公称压女
PN
MPa
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公称通径
DN
mm
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尺寸(mm)
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重量
(Kg)
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配管法兰(供参考)
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L
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D
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D2
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D3
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D4
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D5
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螺栓孔中心
圆直径Dl
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螺栓
数量
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螺栓直径d
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螺栓
长度Ll
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PN1.0MPa
PN1.6MPa
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15
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16
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52
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15
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24
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31
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40
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0.12
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65
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4
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M12
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75
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20
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19
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62
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19
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30
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40
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50
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0.24
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75
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4
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M12
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90
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25
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22
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70
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24
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36
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47
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58
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0.34
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85
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4
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M12
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90
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32
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28
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83
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31
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46
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56
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68
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0.53
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100
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4
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M16
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100
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40
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31.5
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93
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39
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55
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66
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78
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0.80
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110
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4
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M16
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105
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50
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40
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108
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48
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65
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78
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90
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1.2
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125
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4
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M16
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125
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65
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46
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128
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62
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80
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95
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110
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1.8
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145
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4
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M16
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130
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80
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50
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142
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76
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96
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110
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125
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2.2
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160
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8
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M16
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135
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100
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65
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162
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95
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115
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135
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150
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3.4
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180
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8
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M16
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150
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125
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90
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192
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110
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125
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132
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-
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9.0
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210
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8
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M16
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180
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150
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106
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218
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127
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150
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158
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-
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14
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240
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8
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M20
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210
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PN1.0MPa
|
200
|
140
|
273
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165
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200
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208
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-
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24
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295
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8
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M20
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240
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PN1.6MPa
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200
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140
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273
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165
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200
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208
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-
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24
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295
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12
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M20
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240
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PN2.5MPa
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15
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16
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52
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15
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24
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31
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40
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0.12
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65
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4
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M12
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80
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20
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19
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62
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19
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30
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40
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50
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0.24
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75
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4
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M12
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90
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25
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22
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72
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24
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36
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47
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58
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0.34
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85
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4
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M12
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90
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32
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28
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83
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31
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46
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56
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68
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0.53
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100
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4
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M16
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110
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40
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31.5
|
93
|
39
|
55
|
66
|
78
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0.80
|
110
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4
|
M16
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115
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50
|
40
|
108
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48
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65
|
78
|
90
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1.2
|
125
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4
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M16
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125
|
65
|
46
|
128
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62
|
80
|
95
|
110
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1.8
|
145
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8
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M16
|
135
|
80
|
50
|
142
|
76
|
96
|
110
|
128
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2.2
|
160
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8
|
M16
|
145
|
100
|
60
|
168
|
95
|
115
|
135
|
150
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3.8
|
190
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8
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M20
|
160
|
125
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90
|
194
|
110
|
125
|
132
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-
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9.2
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220
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8
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M24
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205
|
150
|
106
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224
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127
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150
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158
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-
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15
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250
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8
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M24
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225
|
200
|
140
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284
|
165
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200
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208
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-
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26
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310
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12
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M24
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260
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PN4.0MPa
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15
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16
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52
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15
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24
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31
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40
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0.12
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65
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4
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M12
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80
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20
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19
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62
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19
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30
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40
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50
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0.24
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75
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4
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M12
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90
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25
|
22
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72
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24
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36
|
47
|
58
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0.34
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85
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4
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M12
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90
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32
|
28
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83
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31
|
46
|
56
|
68
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0.53
|
100
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4
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M16
|
110
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40
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31.5
|
93
|
39
|
55
|
66
|
78
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0.80
|
110
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4
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M16
|
115
|
50
|
40
|
108
|
48
|
65
|
78
|
90
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1.2
|
125
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4
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M16
|
125
|
65
|
46
|
128
|
62
|
80
|
95
|
110
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1.8
|
145
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8
|
M16
|
135
|
80
|
50
|
142
|
76
|
96
|
110
|
128
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2.2
|
160
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8
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M16
|
145
|
100
|
60
|
168
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,
95
|
115
|
135
|
150
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3.8
|
190
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8
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M20
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160
|
125
|
90
|
194
|
110
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125
|
132
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-
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9.2
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220
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8
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M24
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205
|
150
|
106
|
224
|
127
|
150
|
158
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-
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15
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250
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8
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M24
|
225
|
200
|
140
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291
|
165
|
200
|
208
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-
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28
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320
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12
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M27
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在线询价-供应厂家直销★康豪★H71W不锈钢对夹升降式止回阀 |
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