Assistant valve enterprise to win the world
Size:DN50~300
Pressures:PN10~16
Material:Nodular Cast Iron, Carbon Steel, Stainless Steel
Temperature:-20~80℃
End Connection:Flange
It is applicable to the effective isolation when the domestic and drinking water inlet pipes are cross connected, which can effectively prevent and isolate the backflow of unclean water from polluting the domestic and drinking water, and the head loss is less than 0.03MPa. When backflow occurs (the outlet pressure is higher than the inlet pressure), the middle chamber is air isolated; Hydraulic control, meeting the hygiene and safety standards for aquatic products; Low failure rate and simple maintenance.
The air in the middle chamber is isolated, and the pressure in the middle chamber is zero when it returns.
The positive differential pressure of seal closing of inlet check valve is greater than 0.7m water column.
Positive differential pressure of sealing closing of outlet check valve, greater than 0.35m water column.
Flow resistance of the whole machine 0.03MPa.