Ductile Iron Flanged Anti Fouling Isolation Valve With Strainer
Product introduction:
The HS41XA filter and anti fouling isolation valve consists of two separated check valves and a hydraulic transmission to the drain valve. The first check valve body is equipped with a filter screen. Due to the local head loss of the check valve, the pressure in the middle chamber is always lower than the pressure at the inlet. This pressure difference drives the drain valve to be closed and the pipeline is supplying water normally. When the pressure is abnormal (i.e. the outlet pressure is higher than the middle chamber), even if both check valves cannot seal in reverse, the safety drain valve can automatically open to empty the backflow water and form an air partition, ensuring the hygiene and safety of the upstream water supply.
Product technical parameter:
| Pressure nominal |
1.6MPa |
| Port size |
DN50-400mm |
| Strength test standard |
2.4MPa |
| Sealing test standard |
1.76MPa |
| Parts and material |
Body |
Ductile iron, cast steel, stainless steel |
| Bonnet |
Ductile iron, cast steel, stainless steel |
| Disc |
Cast steel, stainless steel |
| Stem |
Bronze, 2Cr13 |
| Diaphragm |
NBR |
| Diaphragm plate |
Cast steel, stainless steel |
| Spring |
Stainless steel |
| Medium application |
Water and oil etc non corrosive mediums |
| Working temperature |
0-80℃ |
| Connection |
Flange connection |
Product features:
The structure of HS41XA with filtering and anti fouling isolation valve has the characteristics of rationality, convenient use, strong sealing performance, durability, and beautiful appearance. Widely used in sectors such as electricity, metallurgy, petroleum, chemicals, gas, urban construction, papermaking, textiles, pharmaceuticals, food, ships, water supply and drainage, energy, drilling, etc.
