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The ULTIMATE Check Valve!
 

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Hansen Check Valve Brochure
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PRODUCT SIZING & PRESSURE RATINGS
HANSEN
CODE
METRIC
BSPT / NPT
IMPERIAL
BSPT / NPT
MAX PRESSURE @ 20 Degrees Celsius
CV25
25mm
1"
10 Bar
CV32
32mm
1 1/4"
10 Bar
CV40
40mm
1 1/2"
10 Bar
CV50 50mm 2" 10 Bar
CV63 63mm 2 1/2" 10 Bar
 
FEATURES & BENEFITS
Used in-line as a non return valve to stop fluids flowing back through your system
  • High Performance, Cost Effective Check Valve with a Strong Compact Design that delivers high volumes of water quickly with unrestricted full flow
  • Unique design gives you exceptional flow rates thus can move more water in less time and save on pumping costs
  • Screw Cap allows for easy access for in-line servicing
  • No Poppet Valve to wear or jam
  • Diaphragm and spring are interchangeable with the same size Hansen Foot Valve
  • Fast response when opening and closing
  • Smooth operating valve for high efficiency with the valve opening at only 1psi
  • All connecting threads are BSPT and NPT
  • New Zealand Made
  • Manufactured from strong, non-corrosive UV stabilised materials for a long life which are approved for use with Potable (drinkable) Water
The Check Valves in this website 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, United States patent 6,374,855 and registered design 42661, United Kingdom patent 0894214 and registered design 2079841, Malaysian patent MY-0119324-A, Indonesian patent ID0007653, , Irish patent 0894214, Israeli patent 126944, Canadian patent 2253848 and South African registered design 98/1493. HANSEN is a trade mark of the Hansen group of companies.
APPROVALS
Hansen from 25mm to 63mm have met the requirements of AS/NZS 4020 Australia & New Zealand drinking water test standard.

Fire Rating UL94HB
For more information on approvals click on the appropriate logo
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