Valves
  
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Used in-line as a non return valve to stop fluids flowing back through your system.

Available sizes:
25mm, 32mm, 40mm, 50mm, 63mm
(1", 1 1/4", 2", 2 1/2" BSPT/NPT)

Click here to help you choose which sized valve

  • Exceptional Flow - Move more water in less time.
  • 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.
  • Inline Servicing - Removable cap - Easy access to all moving parts - Valve stays inline for servicing (if required).
  • No poppet valve to wear or jam - Smooth Flow.
  • Interchangeable Components - Diaphragm and Spring are Interchangeable Components used in the same size Foot Valve.
  • Fast Response Opening & Closing.
  • Operates at any angle.
  • Maximum Recommended Working Pressure - 10 Bar (1000 kPa. 145 PSI) @ 20°C.
  • When screwing metal products into valve, do not over tighten. All pipe work must be adequately supported.
  • Hansen have tested all its products for use with cold water up to a maximum temperature of 60°C (140°F). We do not recommend the use of these products with temperatures higher than 60°C (140°F) as plastic expands due to temperature increases. Hansen cannot guarantee the products will perform when used with temperatures over 60°C (140°F). Hansen products that have failed in temperatures higher than 60°C (140°F) will not be covered by warranty.
When fluid is required in the direction of flow, the diaphragm opens allowing exceptional 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.
 
Cross section shows valve in fully open position
  
Cross section shows valve in fully closed position

Downloadable Files
Valve Range
Marketing Brochure

NOTICE: The products on this web page are protected by intellectual property rights owned by the Hansen group of companies in New Zealand, Australia and other countries, including NZ patents 286543/299570 and 331955 and registered design 29440, Australian patent 708382 and registered design 138753 and patents/registered design in other countries. HANSEN and HANFLO are trade marks of the Hansen group of companies.