Ductile Iron Flanged Backflow Preventer Anti Pollution Isolation Valve
Product introduction:
The HS41X backflow preventer, also named as anti pollution isolation valve, it is designed to prevent serious pollution caused by backflow in the current water supply network; Our unit has introduced advanced foreign technology and independently developed a new hydraulic control valve that is safe, reliable, and prevents backflow pollution of drinking water, to ensure the hygiene and safety of drinking water and fill the gap in the domestic valve field. The first and second stage check valves mainly consist of valve body, valve cover, valve, sealing gasket, spring, etc. The ordinary type is composed of two check valves connected in series, without safe drainage
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 HS41X 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.
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