產(chǎn)品名稱(chēng):全銅對(duì)夾升降式止回閥,對(duì)夾式止回閥
產(chǎn)品型號(hào):H71W
產(chǎn)品特點(diǎn):對(duì)夾升降式止回閥由閥體、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
產(chǎn)品概述:
1、具有結(jié)構(gòu)短、體積小、質(zhì)量輕
2、閥瓣關(guān)閉快速,水錘壓力小
3、流道通暢,流體阻力小;動(dòng)作靈敏,密封性能好
一、主要技術(shù)參數(shù):
型號(hào) | 公稱(chēng)壓力PN(MPa) | 試驗(yàn)壓力PS(MPa) | 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) |
二、主要零件材料:
DN | 閥體 | 閥瓣 | 彈簧 |
H71W-25H、H71W-40H | 2Cr13 | 1Cr13 | 1Cr18 Ni9Ti |
H71W-16P、H71W-25P | ZG1Cr18 Ni9Ti | 1Cr18 Ni9Ti | 1Cr18 Ni9Ti |
三、主要外形連接尺寸:
公稱(chēng)壓力 | 公稱(chēng)通徑 | 尺寸(mm) | |||||
L | D1 | D2 | D3 | D4 | D5 | ||
PN1.0MPa | 15 | 16 | 52 | 15 | 24 | 31 | 40 |
20 | 19 | 62 | 19 | 30 | 40 | 50 | |
25 | 22 | 72 | 24 | 35 | 47 | 58 | |
32 | 28 | 83 | 31 | 46 | 56 | 68 | |
40 | 31.5 | 93 | 39 | 55 | 66 | 78 | |
50 | 40 | 108 | 48 | 65 | 78 | 90 | |
65 | 46 | 128 | 62 | 80 | 95 | 110 | |
80 | 50 | 142 | 76 | 96 | 110 | 128 | |
100 | 60 | 162 | 95 | 115 | 132 | 150 | |
125 | 90 | 192 | 110 | 125 | 135 | - |