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Hansen foot valves

Used on the end of a suction line to stop the fluids in the line emptying when the pump is turned off. This eliminates the need to prime your pump each time you start it.

Hansen and Guyco foot valves
 Which size valve
Click here to help you choose

Model BSP thread Metric* Price
HFV25 1" 25mm $35
HFV32 1 1/4" 32mm $50
HFV40 1 1/2" 40mm $62
HFV50 2" 50mm $80
HFV63 2 1/2" 63mm $129

  *Approx BSP Equivalent

 
 
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Total shipping per order Only $10 to any Australian Address - Prices Include GST
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  • Unrestricted flow
  • Efficiency in excess of 95%. Many other types 35% - 60%.
  • Valve opening and closing very responsive.
  • Unique Product Design incorporates built in strainer.
  • Operates via pressure differential.
  • Operates at any angle or position.
  • No poppet valve to wear.
  • Easily serviced - if required.
  • Blockage reduced due to low fluid velocity through slots.
  • Strong Non-Corrosive Materials - Body; High Quality Glass Fibre Reinforced Nylon, Diaphragm; Nitrile Rubber, Spring; Stainless Steel. All components of this valve manufactured from materials approved for use with potable (drinkable) water.
  • Maximum Recommended Working Pressure - 16 Bar (1600 kPa. 235 PSI) @ 20C.
  • When screwing metal products into valve, do not over tighten. All pipe work must be adequately supported.

Valve Operation

cut section open    How the foot valves stop back flows
Cross section shows valve in fully open position   Cross section shows valve in fully closed position
When fluid is required in the direction of flow, the diaphragm opens allowing full flow. As the flow through the valve stops, the diaphragm closes preventing any return flow. The greater the back or head pressure, the better the diaphragm seals against the valve seat.

How a foot valves works Choosing the correct foot valve

Hansen 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
Foot valve flow chart
 

Maximum Head Pressure: @ 20C

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: 60C ( Degrees Celsius)
Note: All references to gallons are in imperial gallons