H41H lift check valve is suitable for medium and small diameter pipeline under various pressures, temperatures and media to control the opening and closing device to connect or cut off the pipeline medium; rely on the self-weight of the valve flap and the fluid pressure difference to automatically prevent the fluid backflow.H41H lift check valve is widely used in water treatment, chemical industry, petrochemicals, petroleum, papermaking, mining, electric power, liquefied petroleum gas, food, pharmaceuticals, water supply and drainage, municipal services, electronics, construction, environmental protection, firefighting, heating, central air-conditioning, filtration equipment and other fields. environmental protection, fire fighting, HVAC, central air conditioning, filtration equipment and other fields.
Structural Features
- Lift check valves offer advantages such as simple construction, reliable operation, and easy maintenance.
- When the medium enters the valve body in the direction indicated by the arrow on the valve body, the pressure of the medium acts on the valve disc, generating an upward thrust. When this thrust exceeds the gravitational force of the valve disc, the valve opens. When the force exerted on the valve disc by the downstream medium pressure, combined with the gravitational force of the valve disc itself, exceeds the force exerted on the valve disc by the upstream pressure, the valve closes, preventing backflow of the medium.
- The sealing surface is resistant to wear and abrasion, ensuring excellent sealing performance and extended service life.
Product Parameters
Product Model | H41H-16C |
Valve Body Material | Cast Steel |
Nominal Pressure | ≤1.6Mpa |
Applicable Media | Water, Steam, Oil, etc. |
Applicable Temperature | ≤250°C |
Product Size Reference

Nominal Diameter | L | D | D1 | D2 | C | n-∅d | H |
DN15 | 130 | 95 | 65 | 45 | 14 | 4-14 | 77 |
DN20 | 150 | 105 | 75 | 55 | 14 | 4-14 | 77 |
DN25 | 160 | 115 | 85 | 65 | 14 | 4-14 | 80 |
DN32 | 180 | 135 | 100 | 78 | 16 | 4-18 | 85 |
DN40 | 200 | 145 | 110 | 85 | 16 | 4-18 | 95 |
DN50 | 230 | 160 | 125 | 100 | 16 | 4-18 | 105 |
DN65 | 290 | 180 | 145 | 120 | 18 | 4-18 | 120 |
DN80 | 310 | 195 | 160 | 135 | 20 | 8-18 | 130 |
DN100 | 350 | 215 | 180 | 155 | 20 | 8-18 | 140 |
DN125 | 400 | 245 | 210 | 185 | 22 | 8-18 | 155 |
DN150 | 480 | 280 | 240 | 210 | 24 | 8-23 | 180 |
DN200 | 600 | 335 | 295 | 265 | 26 | 12-23 | 211 |
DN250 | 650 | 405 | 355 | 320 | 30 | 12-25 | 260 |
DN300 | 750 | 460 | 410 | 375 | 30 | 12-25 | 323 |
DN350 | 850 | 520 | 470 | 435 | 30 | 16-25 | / |
DN400 | 950 | 580 | 525 | 485 | 36 | 16-30 | / |

















