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全銅對(duì)夾式止回閥
上海代益閥門(mén)專(zhuān)業(yè)生產(chǎn)全銅對(duì)夾式止回閥，不銹鋼對(duì)夾式止回閥，法蘭全銅對(duì)夾式止回閥，鑄鋼對(duì)夾式止回閥，H71W全銅對(duì)夾式止回閥。 H71W型對(duì)夾式止回閥的詳細(xì)資料： |
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H71W型對(duì)夾式止回閥適用介質(zhì)：水、蒸體、油品等
對(duì)夾式止回閥由閥體、閥瓣、彈簧等組成，水平或垂直安裝于管路系統(tǒng)，防止介質(zhì)倒流，具有結(jié)構(gòu)短、體積小、質(zhì)量輕；閥瓣關(guān)閉快速，水錘壓力小；流道通暢，流體阻力小；動(dòng)作靈敏，密封性能好。
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◆ H71W型對(duì)夾式止回閥主要技術(shù)參數(shù)：
| 型號(hào) |
公稱(chēng)壓力PNMPa |
試驗(yàn)壓力PSMPa |
工作溫度℃ |
適用介質(zhì) |
| 殼體 |
密封 |
| H71W-16T |
1.6 |
2.4 |
1.76 |
≤200 |
水、蒸體、油品等 |
| H71H-25Q |
2.5 |
3.75 |
2.75 |
≤235 |
| H71W-25H |
≤300 |
| H71W-25P |
≤200 |
硝酸等腐蝕性介質(zhì) |
| H71W-40H |
4.0 |
6.0 |
4.4 |
≤300 |
水、蒸體、油品等 |
| H71W-40P |
≤200 |
硝酸等腐蝕性介質(zhì) | |
| H71W型對(duì)夾式止回閥規(guī)格型號(hào) |
閥體 |
閥瓣 |
彈簧 |
| RH71W-25H、RH71W-40H |
2Cr13 |
1Cr13 |
1Cr18 Ni9Ti |
| RH71W-16P、RH71W-25P |
ZG1Cr18 Ni9Ti |
1Cr18 Ni9Ti |
1Cr18 Ni9Ti | | | |
