The parts design of H44X (SFCV) series rubber flap check valve is mainly composed of three main parts: valve body, bonnet and rubber flap
The rubber flap in the valve is made of steel plate, steel rod and reinforced nylon cloth as the substrate, and the outer layer is covered with rubber. The service life of the valve flap can reach 1 million times. H44X (SFCV) series rubber flap check valve adopts full flow area design, which has the characteristics of small head loss, not easy to accumulate sundries, simple maintenance and so on. H44X (SFCV) series rubber flap check valve is mainly applicable to horizontal water supply and drainage system. It can be installed at the water outlet of the pump to prevent backflow and water hammer damage to the pump. H44X (SFCV) series rubber flap check valve can also be installed on the bypass pipe of the inlet and outlet pipe of the reservoir to prevent the pool water from flowing back to the water supply system. Check valves are generally suitable for clean media, not for media containing solid particles and high viscosity.
mm | L | D | D1 | D2 | b-f | Z-фd |
50 | 203 | 165 | 125 | 100 | 19-3 | 4-ф19 |
65 | 216 | 185 | 145 | 120 | 19-3 | 4-ф19 |
80 | 241 | 200 | 160 | 132 | 19-3 | 8-ф19 |
100 | 292 | 220 | 180 | 155 | 19-3 | 8-ф19 |
125 | 330 | 250 | 210 | 185 | 19-3 | 8-ф19 |
150 | 356 | 285 | 240 | 210 | 19-3 | 8-ф23 |
200 | 495 | 340 | 295 | 262 | 20-3 | 12-ф23 |
Feature
Body | Ductile Iron |
Bonnet | Ductile Iron |
Disc | NBR+Q235+Nylon fiber mesh sleeve |
Gasket | NBR |
Norminal pressure | 1.6 mpa |
sheel test (water) | 1.76 mpa |
seal test (water) | 2.4 mpa |
temperature | -10 to 80 ℃ |