Ductile iron foot valve is a special type of check valve that has a built-in strainer. It is installed at the intake side of a suction pipe and pump, its purpose is to prevent the loss of prime when the liquid source (wet well) is lower than the pump. Prime is designed as the charge of loquid required to begin pumping action and priming is the process of filling the pump and suction pipe with liquid.
Series - 125 To 150
The check valve part of the foot valve opens when the pump starts to allow liquid to enter the suction pipe and pump, when the pump stops the check valves closes and prevents the liquid from emptying, thus the foot valve eliminates the need to prime the pump each time it is started, the strainer component of the foot valve helps to romove unwanted debris from the liquid that may cause damage to the pump.
Design Features
- High sealing performance
- Light torque
- Small flow resistances
- Not easy to produce water hammer
- Simple andconvenient installation, interchangeable parts
- Size 3″-32″ DN80-DN800
- Pressure Class "125, 150" | PN10-PN16
- End Connection Flange
- Body Material Ductile iron
- Disc Material Ductile iron+NBR
- Seat Material NBR, SS304
- Stem Material 2Cr13
- Design Standard MFD
- Face to Face Standard MFD
- Test Standard API598, EN12266
- Temperature Range -196℃~80℃
- Actuator Options /
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Structure Style
- Full Port, Single Disc Lift Type
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Connection Standard
- Flange Drilling: ANSI B16.5, EN1092-1