The rubber disc swing check valve is mainly composed of three main parts, the valve body, the valve cover and the rubber valve. The rubber flap is made of steel plate, steel bar and reinforced nylon cloth, and the outer layer is made of rubber, and the valve switch life can reach 1 million times. The valve is designed with full flow area, which has the characteristics of small head loss, no accumulation of debris and gradual maintenance and so on. The valve is mainly applied to the water supply and drainage system, which can be installed at the outlet of the pump to prevent the reverse flow and water hammer from damage to the pump. The valve can also be installed on the bypass pipe of the water intake pipe to prevent water from flowing back.
Yifa rubber disc swing check valve is used mainly for water supply and drainage system and can be set on the pump outlet to prevent the pump from getting harmed by the medium backflow. It can also be set on the mouth of a water outlet pipe to prevent the medium from backflow. It has simple structure,reliable performance,long durable,open-close times can be up to over million ones, can suitable for sewage.
| PN10/16 dimensions | |||||
| DN | L | n-d | B | C | D |
| 50 | 204 | 4-φ18 | 95 | 125 | 160 |
| 65 | 225 | 4-φ18 | 115 | 145 | 180 |
| 80 | 244 | 4-φ18/8-φ18 | 130 | 160 | 195 |
| 100 | 292 | 8-φ18 | 150 | 180 | 215 |
| 125 | 300 | 8-φ18 | 180 | 210 | 245 |
| 150 | 358 | 12-φ23 | 205 | 240 | 280 |
| 200 | 437 | 8-φ23/12-φ23 | 260 | 295 | 335 |
| 250 | 502 | 12-φ23/12-φ26 | 320 | 350/355 | 405 |
| 300 | 560 | 12-φ23/12-φ26 | 380 | 400/410 | 460 |
Design: EN1074-3
Flange end: EN1092-2/BS4504/DIN2532
