Wafer type check valve
Wafer type check valve
H71H, H71W type PN10~PN40 The clamp type lifting check valve is composed of valve body, valve disc, spring, etc., and is installed horizontally or vertically in the pipeline system to prevent the medium from flowing backward.
Product Features
1. Short structure, small size, light weight
, fast valve flap closure, small water hammer pressure
, smooth flow path, low fluid resistance, sensitive action and good sealing performance
Wafer type check valve
Product Usage
H71H, H71W type PN10~PN40 clamp lift check valve consists of valve body, valve disc, spring, etc., installed horizontally or vertically in the pipeline system to prevent backflow of the medium.
Features
1, with a short structure, small size, light weight
2, the valve flap is closed quickly, the water hammer pressure is small
3, the flow path is smooth, the fluid resistance is small; the action is sensitive, the sealing performance is good
Performance parameter
model | Nominal diameter | test pressure | Operating temperature | proper temperature | |
case | seal | ||||
H71H-16Q | 1.6 | 2.4 | 1.76 | ≤235°C | Water, steam, oil, etc. |
H71H-25Q | 2.5 | 3.75 | 2.75 | ≤235°C | |
H71W-25H | ≤300°C | ||||
H71W-25P | ≤200°C | Corrosive medium such as nitric acid | |||
H71W-40H | 4 | 6 | 4.4 | ≤300°C | |
H71W-40P | ≤200°C | water vapor | |||
Main shape and connection size
Nominal diameter DN (mm) | L | D | ||
1.6 | 2.5 | 4 | ||
15 | 25 | 48 | 48 | 48 |
20 | 1.5 | 58 | 58 | 58 |
25 | 35.5 | 68 | 68 | 68 |
32 | 40 | 80 | 80 | 80 |
40 | 45 | 90 | 90 | 90 |
50 | 56 | 105 | 105 | 105 |
65 | 63 | 125 | 125 | 125 |
80 | 71 | 140 | 140 | 140 |
100 | 80 | 160 | 165 | 165 |
125 | 110 | 190 | 195 | 195 |
150 | 125 | 215 | 225 | 225 |
200 | 160 | 270 | 285 | 290 |
250 | 200 | 330 | 340 | 350 |
300 | 250 | 385 | 400 | 415 |
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