|
| 数量 | 价格 |
|---|---|
| ≥ 1 | 电议 |
| H71对夹升降式止回阀的流体阻力系数、流量用开启压力 |
| 公称通径 | 阀门全开启时的流体阻力系数ζ | 常温下阀门全开启时的水流量系数 | 流体的流向 | |||||
| DN | NPS | Kv(m3/h) | CV(U.S) | CV(U.K) | ↑ | ↓ | → | |
| 开启压力近似的值KPa | ||||||||
| 15 | 1/2 | 6.4 | 2.6 | 3.0 | 2.5 | 3 | 2 | 2.5 |
| 20 | 3/4 | 5.1 | 6.4 | 7.5 | 6.3 | 3 | 2 | 2.5 |
| 25 | 1 | 4.1 | 12.6 | 14.8 | 12.3 | 3 | 2 | 2.5 |
| 32 | 11/4 | 4.1 | 19.7 | 23.1 | 19.3 | 3 | 2 | 2.5 |
| 40 | 11/2 | 3.8 | 29.5 | 34.5 | 28.9 | 3 | 2 | 2.5 |
| 50 | 2 | 3.5 | 54.6 | 63.9 | 53.5 | 3 | 2 | 2.5 |
| 65 | 21/2 | 3.5 | 85.4 | 99.9 | 83.7 | 3 | 2 | 2.5 |
| 80 | 3 | 3.2 | 128 | 150 | 125 | 3 | 2 | 2.5 |
| 100 | 4 | 2.8 | 244 | 286 | 249 | 3 | 2 | 2.5 |
| 125 | 5 | 2.9 | 375 | 439 | 368 | 3 | 1 | 2.2 |
| 150 | 6 | 3.1 | 522 | 611 | 512 | 3 | 1 | 2.2 |
| 200 | 8 | 3.2 | 915 | 1070 | 897 | 3 | 1 | 2.2 |
| H71系列对夹升降式止回阀的型号、材料及主要参数 | ||||||||
|
配管法兰 |
公称压力 |
常规产品型号 | ||||||
|
JB/T74～90、GB/T9112～9124、HG20592～20614 |
PN1.0MPa |
H71H-10C |
H71W-10P |
H71W-10P8 |
H71W-10P3 |
H71W-10R |
H71W-10R8 |
H71W-10R3 |
|
PN1.6MPa |
H71H-16C |
H71W-16P |
H71W-16P8 |
H71W-16P3 |
H71W-16R |
H71W-16R8 |
H71W-16R3 | |
|
PN2.5MPa |
H71H-25 |
H71W-25P |
H71W-25P8 |
H71W-25P3 |
H71W-25R |
H71W-25R8 |
H71W-25R3 | |
|
PN4.0MPa |
H71H-40C |
H71W-40P |
H71W-40P8 |
H71W-40P3 |
H71W-40R |
H71W-40R8 |
H71W-40R3 | |
|
PN6.3MPa |
H71H-63 |
H71W-63P |
H71W-63P8 |
H71W-63P3 |
H71W-63R |
H71W-63R8 |
H71W-63R3 | |
|
PN10.0MPa |
H71H-100 |
H71W-100P |
H71W-100P8 |
H71W-100P3 |
H71W-100R |
H71W-100R8 |
H71W-100R3 | |
|
PN16.0MPa |
H71H-160 |
H71W-160P |
H71W-160P8 |
H71W-160P3 |
H71W-160R |
H71W-160R8 |
H71W-160R3 | |
|
GB/T9112～9124、HG20615～20635、SH3406 |
PN2.0MPa |
H71H-20C |
— |
H71W-20P8 |
H71W-20P3 |
— |
H71W-20R8 |
H71W-20R3 |
|
PN5.0MPa |
H71H-50 |
— |
H71W-50P8 |
H71W-50P3 |
— |
H71W-50R8 |
H71W-50R3 | |
|
PN11.0MPa |
H71H-110 |
— |
H71W-110P8 |
H71W-110P3 |
— |
H71W-110R8 |
H71W-110R3 | |
|
PN15.0MPa |
H71H-150 |
— |
H71W-150P8 |
H71W-150P3 |
— |
H71W-150R8 |
H71W-150R3 | |
|
ANSIB16.5 |
Class150 |
H71H-A1C |
— |
H71W-A1P8 |
H71W-A1P3 |
— |
H71W-A1R8 |
H71W-A1R3 |
|
Class300 |
H71H-A3 |
— |
H71W-A3P8 |
H71W-A3P3 |
— |
H71W-A3R8 |
H71W-A3R3 | |
|
Class600 |
H71H-A6 |
— |
H71W-A6P8 |
H71W-A6P3 |
— |
H71W-A6R8 |
H71W-A6R3 | |
|
Class900 |
H71H-A9 |
— |
H71W-A9P8 |
H71W-A9P3 |
— |
H71W-A9R8 |
H71W-A9R3 | |
|
主要零件材料
|
阀体 |
WCB(A105) |
ZG1Cr18Ni9Ti |
CF8(304) |
CF8(304L) |
ZG1Cr18Ni12Mo2Ti |
CF8M(316) |
CF3M(316L) |
|
阀瓣 |
2Cr13 |
1Cr18Ni9Ti |
0Cr18Ni9 |
00Cr19Ni10 |
1Cr18Ni12Mo2Ti |
0Cr17Ni12Mo2 |
00Cr17Ni12Mo2 | |
|
压圈 |
2Cr13 |
1Cr18Ni9Ti |
0Cr18Ni9 |
00Cr19Ni10 |
1Cr18Ni12Mo2Ti |
0Cr17Ni12Mo2 |
00Cr17Ni12Mo2 | |
|
弹簧 |
0Cr18Ni9 |
0Cr18Ni9 |
0Cr18Ni9 |
00Cr19Ni10 |
01Cr17Ni12Mo2 |
0Cr17Ni12Mo2 |
00Cr17Ni12Mo2 | |
|
适用工况 |
适用介质 |
水、蒸气、油品等 |
硝酸等腐蚀性介质 |
强氧化性介质 |
醋酸等腐蚀性介质 |
尿素等腐蚀性介质 | ||
|
适用温度(℃) |
-29～425 |
-196～540
|
-196～425 |
-196～540 |
-196～455 | |||
|
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止回阀型号编制方法. | ||||||||
免责声明：以上信息由会员自行提供，内容的真实性、准确性和合法性由发布会员负责。五金机械网对此不承担任何责任。
友情提醒：为规避购买风险，建议您在购买相关产品时，优先选择金牌会员。
