H72 (Y / W) wafer check valve
Product Overview
Wafer check valve is also known as reverse flow valve, check valve, back pressure valve and one-way valve. This kind of valve is automatically opened and closed by the force generated by the flow of the medium in the pipeline, which belongs to an automatic valve.
Product material list:
| 型号 | 公称压力 PS（MPa） | 试验压力（MPa） | 工作温度（℃） | 适用介质 | |
壳体 | 密封 | ||||
H77X | 1.0 | 1.5 | 1. 1 | 软密封：<80 硬密封：<450 | 水、气体、 油品、硝酸等 |
| 1.6 | 2.4 | 1. 76 | |||
| 2.5 | 3.75 | 2.75 | |||
| 4.0 | 6.0 | 4.4 | |||
| 6.4 | 9.6 | 7.0 | |||
零件名称 | 材料 | ||||
10C、25(10c、16、25、64) | H77H-(16c、25、40、64） | H77H-（25I、40I、64I) | H77W-(16c、25c、25、40) | H77W-(10P、16P、25P、40P) | |
阀体、蝶板 | 铸钢WCB | 铬钼钢 | 铸钢WCB | 1Cr18Ni9Ti | |
阀阀杆 | 2Cr13 | 1Cr18Ni9Ti | 2Cr13 | ||
阀体密封圈 | 丁腈橡胶 | 堆焊合金焊 | 堆焊硬质合金 | - | - |
助关弹簧 | 1Cr18Ni9Ti | 耐热合金 | 1Cr18Ni9Ti | ||
Product parameters:
公称通径 DN(mm) | L | D2 | D3 | 公称通径 DN(mm) | L | D2 | D3 | ||
H77X | H77H H77Y H77W | H77X | H77H H77Y H77W | ||||||
50 | 43 | 100 | 43 | 46 | 400 | 140 | 485 | 376 | 390 |
80 | 64 | 135 | 71 | 80 | 450 | 152 | 545 | 427 | 427 |
100 | 64 | 15 | 91.5 | 94 | 500 | 152 | 608 | 479 | 490 |
125 | 70 | 185 | 115 | 118 | 600 | 178 | 718 | 579 | 588 |
150 | 76 | 210 | 141 | 145 | 700 | 229 | 800 | 675 | 686 |
200 | 89 | 265 | 191 | 20 | 800 | 241 | 905 | 774 | 784 |
250 | 114 | 320 | 230 | 250 | 900 | 241 | 1005 | 875 | |
300 | 114 | 375 | 290 | 300 | 1000 | 300 | 1115 | 974 | |
350 | 127 | 435 | 340 | 340 | 才200 | 350 | 1325 | 1164 | |
