Why Choose Us?
★ Fast& Professional Reply.
★ Great Quality!! Quick Delivery Time!! Amazing After-sales Service!!
★ Two Factories; Occupying Area 20000 Sq.m.; Technicist beyond 80.
★ Welcome OEM& ODM.
★ Export more than 60 countries, widely used in power stations, thermal power station, water works, water works, sewage disposal plants, iron and steel companies and other industries.
Application:
This valve is suitable for sewage treatment, petrochemical industry, mine smelting, water conservancy and electric power, papermaking and steel, textile printing and dyeing, building energy and other industries. It is installed at the bottom of the pump, restricting the flow of water back to the headwater in the pump,the water just can not go out.
Features:
The bottom of the valve body has the filter screen and strengthening rib, has played the not easy blockage, mainly applies in the most ordinary pumping pipe road.Because the disc is a double (or multiple valves), so open the pump when the water quickly, stop the pump can also be stopped immediately, more suitable for the large diameter of the bottom valve.
Structure diagram:

Nominal diameter(mm):DN400~DN1200
Nominal pressure(Mpa):0.1~2.5MPA
Suitable temperature:≤80℃
Suitable medium: Water, sewage,oil, etc.
Type of sealing : soft sealing .
Type of control : automatic.
Material:grey cast iron, ductile cast iron,alloy cast iron, carbon steel,stainless steel, alloy steel.
Standard: GB, BS, ASME, JIS, DIN, EN, ISO and other country, also can be produced according to user’s requirements.