●Description: Sewage raft valve body for the drum-shaped, valve parts, including stainless
steel float, stem and the valve, the valve is installed in the pump outlet or
water distribution pipelines used to exclude the product in a tube of air in
order to improve efficiency in the use of pipelines and pumps, when the
negative pressure tube, this valve rapidly inhalation of ambient air in order
to prevent pipeline damage due to negative pressure. In the open position when
the water injection tube, the valve braided a lot of exhaust charge dripping
when the air is drained, the valve float to rise and drive the valve closed. To
stop the exhaust when the normal transportation of water in the tube such as
gathered a small amount of air in the valve and to a considerable extent, the
water level drop within the valve, then the air discharged from the holes. When
the pump stops, the negative pressure, flow empty tube or a case of tube plugs
quickly open, inhaled air and ensure pipeline safety.
●Standards: BS EN 1092, GB/T 9113,GB/T 17241.6.
●Materials: Ductile iron, cast iron
●Nominal
sizes: DN50—300mm
●Pressure: PN6/10/16
●Corrosion
protection: Inside and outside FBE.
●Suitable
medium: Water, oil, steam.
●Package: wooden case with plastic layer, wooden pallets with plastic layer, steel
crates.