Foot Valve

Foot Valve

Basic information
Basic information
This valve is installed at the bottom of the pump's underwater pipette, restricting the return of the liquid to the water source in the pump pipe.
Features
Features
1. Full pipe size flow area;
2. Lowest head loss;
3. 360° stainless steel strainer;
4. The disc is completely covered with adhesive and reliable sealing.
Principle
Principle
The water of the water source enters the valve body from the cover. Under the pressure of the fluid, the disc opens the water, and when the pressure in the outlet pipe stops, the disc will be closed quickly, and the liquid will not be poured back to the water source, which plays a role of unimpeded pumping and saving water energy loss.
Installation and Commissioning
Installation and Commissioning
Installed at the bottom of the pump suction pipe to ensure its vertical status;Start immediately after the water is filled in the forward water pipe for the first time, resulting in a semi-vacuum in the suction pipe and water is sucked into the vertical pipe to complete the water pumping process. For specific use, please consult ZhengFeng Valve Group.

Part

Material

Standard

Body

Ductile Iron

EN 1563/DIN 1693

Flow Deflector

Ductile Iron

EN 1563/DIN 1693

Stem

Stainless Steel 431

EN10088-1/ASTM A959

Disc

Ductile Iron + EPDM

EN 1563/ISO 4633

Strainer

Stainless Steel 431

EN10088-1/ASTM A959

Spring

Stainless Steel 431

EN10088-1/ASTM A959

For the materials options not listed, consult factory.

ZhengFeng manufactures valves in more than 50 different alloys.

Product scope, Standards & Materials
Size Range: 2"~24"
Pressure Rating: 10bar ~ 25bar
Face to Face Dimensions: AMSE B16.10, EN558-1
Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2
Coating: Fusion Bonded Epoxy Coating
Inspection and Test: ISO 5208 / EN 12226-2

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