產(chǎn)品名稱:對(duì)夾升降式止回閥
產(chǎn)品型號(hào):H71H/W
產(chǎn)品特點(diǎn):
H71H/W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,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?。粍?dòng)作靈敏,密封性能好。
對(duì)夾升降式止回閥主要技術(shù)參數(shù):
型號(hào) |
公稱通徑 |
試驗(yàn)壓力 |
工作溫度 |
適用溫度 |
|
殼體 |
密封 |
||||
H71H-16Q |
1.6 |
2.4 |
1.76 |
≤235℃ |
水、蒸氣、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℃ |
|
H71W-40P |
≤200℃ |
水、蒸氣 |
對(duì)夾升降式止回閥主要零件材料:
型號(hào) |
閥門 |
閥瓣 |
彈簧 |
H71H-16Q H71H-25Q |
QT400-15 |
25 |
50CrVA |
H71W-25H H71W-40H |
2Cr13 |
1Cr13 |
1Cr18Ni9 |
H71W-25P H71W-40P |
ZG1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
對(duì)夾升降式止回閥主要外形尺寸:
公稱通徑 |
L |
D |
公稱通徑 |
L |
D |
||||
1.6 |
2.5 |
4.0 |
1.6 |
2.5 |
4.0 |
||||
15 |
25 |
48 |
48 |
48 |
80 |
71 |
140 |
140 |
140 |
20 |
31.5 |
58 |
58 |
58 |
100 |
80 |
160 |
165 |
165 |
25 |
35.5 |
68 |
68 |
68 |
125 |
110 |
190 |
195 |
195 |
32 |
40 |
80 |
80 |
870 |
150 |
125 |
215 |
225 |
225 |
40 |
45 |
90 |
90 |
90 |
200 |
160 |
270 |
285 |
390 |
50 |
56 |
105 |
105 |
105 |
250 |
200 |
330 |
340 |
350 |
65 |
63 |
125 |
125 |
125 |
300 |
250 |
385 |
400 |
415 |