Check Valves
H71 Wafer Lift Check Valve
- Ultra-Slim, Space-Saving: Features a wafer-style design with a face-to-face length far shorter than traditional flanged check valves, making it lightweight and significantly saving installation space.
- Convenient Installation: Can be installed both horizontally and vertically in pipelines with a simple and fast installation process.
- Quick Closing, Anti-Water Hammer: The short disc stroke, often aided by a spring, ensures a rapid response and can effectively reduce or eliminate water hammer.
- Low Flow Resistance: The internal flow path is well-designed, allowing for smooth medium flow with minimal pressure loss.
- Reliable Sealing: The precise fit between the disc and the seat ensures dependable sealing performance.
The H71 Wafer Lift Check Valve is an ultra-slim check valve installed by being clamped between two flanges. Its disc moves up and down along a central guide rod within the body, opening and closing automatically through a combination of medium pressure and spring assistance to prevent backflow. Due to its extremely short face-to-face dimension, small size, and light weight, the H71 valve not only significantly saves installation space and material costs but also effectively reduces water hammer. It is widely used in water supply and drainage, fire protection, HVAC, and industrial pipeline networks as a cost-effective anti-backflow solution.
PN1.0/1.6 MPa
| DN | L | D | D2 | D1 | Bolts | Thread | Length(L1) |
|---|---|---|---|---|---|---|---|
| 15 | 16 | 53 | 16 | 65 | 4 | M12 | 75-80 |
| 20 | 19 | 63 | 19 | 75 | 4 | M12 | 90 |
| 25 | 22 | 73 | 24 | 85 | 4 | M12 | 90 |
| 32 | 28 | 84 | 31 | 100 | 4 | M16 | 90-100 |
| 40 | 32 | 94 | 39 | 110 | 4 | M16 | 105 |
| 50 | 40 | 109 | 48 | 125 | 4 | M16 | 105 |
| 65 | 46 | 129 | 63 | 145 | 4 | M16 | 130 |
| 80 | 50 | 144 | 78 | 160 | 8 | M16 | 135 |
| 100 | 60 | 170 | 98 | 180 | 8 | M16 | 150 |
| 125 | 90 | 198 | 123 | 210 | 8 | M16 | 180 |
| 150 | 106 | 228 | 148 | 240 | 8 | M20 | 210 |
| 200 | 140 | 275 | 198 | 295 | 8 | M20 | 240 |
| 250 | 160 | 332 | 248 | 350 | 12 | M20 | 260 |
PN2.5/4.0 MPa
| DN | L | D | D2 | D1 | Bolts | Thread | Length(L1) |
|---|---|---|---|---|---|---|---|
| 15 | 16 | 53 | 15 | 65 | 4 | M12 | 80 |
| 20 | 19 | 63 | 19 | 75 | 4 | M12 | 90 |
| 25 | 22 | 73 | 24 | 85 | 4 | M12 | 90 |
| 32 | 28 | 84 | 31 | 100 | 4 | M16 | 110 |
| 40 | 32 | 94 | 39 | 110 | 4 | M16 | 115 |
| 50 | 40 | 109 | 48 | 125 | 4 | M16 | 125 |
| 65 | 46 | 129 | 63 | 145 | 8 | M16 | 145 |
| 80 | 50 | 144 | 78 | 160 | 8 | M16 | 145 |
| 100 | 60 | 170 | 98 | 190 | 8 | M20 | 160 |
| 125 | 90 | 198 | 123 | 220 | 8 | M24 | 205 |
| 150 | 106 | 228 | 148 | 250 | 8 | M24 | 225 |
| 200 | 140 | 284-291 | 198 | 310-320 | 12 | M24-M27 | 260-275 |
| 250 | 160 | 341-353 | 248 | 370-385 | 12 | M27-M30 | 280-295 |
No drawing available.
