Rubber Flap Check Valve
Rubber Flap Check Valve
Rubber flap check valve adopts swing structure, the valve flap is made of nitrile rubber and steel plate pressed at high temperature, wash resistance, good sealing performance, simple structure, tilt valve flap and plane seat design to maximize the flow capacity of the medium.
| Nominal Diameter | DN40 – 600 |
| Nominal Pressure | 1.0/1.6MPa |
| Applicable Temperature | 0-80oC |
| Applicable Medium | Water |
Additional Information
Process Description
Related Documentation
Rubber flap check valve adopts swing structure, the valve flap is made of nitrile rubber and steel plate pressed at high temperature, wash resistance, good sealing performance, simple structure, tilt valve flap and plane seat design to maximize the flow capacity of the medium. The valve adopts the whole basin design, with a small head loss, not easy to accumulate debris, easy maintenance and other characteristics.
Features
- Prevent dielectric backflow and motor reversal
- Prevent contamination caused by backflow
- After the valve is fully opened, the flow is good, the fluid resistance is small, and the water pressure loss is small
- The rubber plate is easy to replace and maintain
Installation Dimensions Unit: mm
| DN | L | H | 1.0MPa | 1.6MPa | ||||
| D | D1 | n – φ d | D | D1 | n – φ d | |||
| 40 | 165 | 165 | 145 | 110 | 4 – φ 14 | 145 | 110 | 4 – φ 14 |
| 50 | 203 | 165 | 160 | 125 | 4 – φ 19 | 160 | 125 | 4 – φ 19 |
| 65 | 216 | 185 | 180 | 145 | 4 – φ 19 | 180 | 145 | 4 – φ 19 |
| 80 | 241 | 200 | 200 | 160 | 8- φ 19 | 200 | 160 | 8- φ 19 |
| 100 | 292 | 220 | 220 | 180 | 8- φ 19 | 220 | 180 | 8- φ 19 |
| 125 | 330 | 280 | 250 | 210 | 8- φ 19 | 250 | 210 | 8- φ 19 |
| 150 | 356 | 285 | 285 | 240 | 8- φ 23 | 285 | 240 | 8- φ 23 |
| 200 | 495 | 340 | 340 | 295 | 8- φ 23 | 340 | 295 | 12- φ 23 |
| 250 | 622 | 395 | 395 | 350 | 12- φ 23 | 405 | 355 | 12- φ 28 |
| 300 | 698 | 445 | 445 | 400 | 12- φ 23 | 460 | 410 | 12- φ 28 |
| 350 | 787 | 505 | 505 | 460 | 16- φ 23 | 520 | 470 | 16- φ 28 |
| 400 | 914 | 565 | 565 | 515 | 16- φ 28 | 580 | 525 | 16- φ 31 |
| 450 | 978 | 615 | 615 | 565 | 20- φ 28 | 640 | 585 | 20- φ 31 |
| 500 | 978 | 670 | 670 | 620 | 20- φ 28 | 715 | 650 | 20- φ 34 |
| 600 | 1295 | 780 | 780 | 725 | 20- φ 31 | 840 | 770 | 20- φ 37 |
Materials of Main Parts
| No. | Name | Material |
| 1 | Valve Body | Ductile iron |
| 2 | Bonnet | Ductile iron |
| 3 | Valve clack | Q235 |
| 4 | Rubber flap | EPDM/q235+Butyl rubber |
