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Choosing the correct foot valve
Use the following flow chart and technical specifications to determine the correct Foot Valve for your requirements
Foot Valve selection instructions

Step 1: Measure or calculate the capacity of your pump installation.
Step 2: Look at the chart for the valve(s) that cover the flow rate.

Step 3: For dirty water applications choose the largest valve that will be operating in the area shown               by the thicker line.

Example: If your pumping capacity is 400 l/min use a FV32 Foot Valve
 

Maximum Head Pressure: @ 20°C
VALVE FV25 FV32 FV40 FV50 FV63
psi 235 235 235 235 235
Bar 16 16 16 16 16
kPa 1600 1600 1600 1600 1600

Vacuum required for initial flow:
VALVE FV25 FV32 FV40 FV50 FV63
psi -0.5 -0.5 -0.5 -0.5 -0.5
kPa -3.5 -3.5 -3.5 -3.5 -3.5

Vacuum required to fully open diaphragm:
VALVE FV25 FV32 FV40 FV50 FV63
psi -1.5 -1.5 -1.5 -1.5 -1.5
kPa -10.0 -10.0 -10.0 -10.0 -10.0

Minimum flow for self cleaning action:
VALVE FV25 FV32 FV40 FV50 FV63
l/min 110 210 300 460 600

Connection: female BSPT
VALVE FV25 FV32 FV40 FV50 FV63
Thread Size 1" 1 1/4" 1 1/2" 2" 2 1/2"

Dimensions: (mm)

VALVE FV25 FV32 FV40 FV50 FV63
Diameter 69 87 99 123 152
length 72 88 99 120 157
Installation: Valve will operate at any angle.
Head Loss: See chart above.
 		 Maximum operating temperature: 60°C ( Degrees Celsius)
Note: All references to gallons are in imperial gallons
 
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