
The valve is installed at the lowest end of the pump suction pipe and operates fully submerged in water. It automatically locks water and
prevents back‑flow upon pump shutdown to effectively stop water returning inside the pipeline. Only one‑time priming is required for
long‑term operation; repeated refilling is unnecessary for pump start‑up, saving time and labor and boosting operational efficiency. Fitted with an integrated reinforced fine‑mesh strainer, the valve efficiently intercepts sand, gravel, weeds and fine suspended solids. It keeps
contaminants out of the pump casing and protects the pump impeller, greatly lowering pump failure rates and the risk of pipeline clogging.
Internally, it adopts a highly‑elastic wear‑resistant sealing structure, delivering tight closure and reliable shut‑off performance to achieve
near‑zero leakage and zero back‑flow. The streamlined flow‑path provides low intake resistance without impairing the pump’s suction flow rate and head. Subjected to enhanced anti‑corrosion treatment, the valve body resists water pressure, aging and long‑term water
immersion. It fits various clean‑water services including river water, well water, tap water and industrial circulating water.
With solid construction, sensitive opening‑and‑closing action, high durability and easy maintenance, this valve features higher pressure
resistance, better anti‑clogging capacity and longer service life than conventional foot valves. It is widely used in pump water‑supply
systems for farmland irrigation, water‑conservancy water intake, municipal water supply & drainage and factory circulating‑water projects. It acts as a high‑performance upgraded replacement for traditional ordinary foot valves.
Thickened Reinforced Valve Body, Pressure‑resistant without Deformation
Adopting integrally thick casting, it has sufficient wall thickness and high mechanical strength. It resists cracking and deformation under
Reinforced Fine‑mesh Strainer, Doubled Anti‑clogging Performance
Equipped with denser mesh and reinforced frame structure, it intercepts fine sand, weeds and gravel. It is less susceptible to clogging and greatly reduces cleaning frequency.
High‑density Water‑stop Sealing, Stable Water‑locking with Zero Back‑flow
The upgraded wear‑resistant elastic sealing provides excellent fitting tightness and reliable shut‑off. It maintains pipeline pressure without back‑flow and ensures stable pump start‑stop performance.
Low Water‑flow Resistance, No Adverse Effect on Pump Head
The optimized flow passage allows flexible opening of valve disc and smooth water intake. It prevents pump choking and flow loss for
Corrosion‑resistant to Long‑term Water Immersion, Greatly Extended Service Life
Internal and external anti‑rust and anti‑corrosion treatment prevents rust and aging during prolonged submersion. Its durability is far