HiFlo Valves
Supplement your rainwater tank during dry weather spells
with a reliable Full Flow Rain Relief Valve


Hansen Rapidflo Brochure
(Adobe Acrobat PDF)

HRRRF152025 RAPIDFLO VALVE With Small Adaptors Long Tail Male 15mm, 20mm & 25mm
(1/2", 3/4", 1")
HRRRF324050 RAPIDFLO VALVE With Large Adaptors Long Tail Male 32mm, 40mm & 50mm
(1-1/4", 1-1/2", 2")
Supplied with: Complete Valve Body, Weighted Float, 2.5 metre Cord and either 15mm & 20mm & 25mm Long Tail Adapter or 32mm & 40mm & 50mm Long Tail Adapter.
Max Pressure @ 20°C = 12 Bar.   Metric Sizes BSPT (DN).   Imperial Sizes BSPT.
  • Maintains a minimum water level in rainwater tanks
  • Delivers high volumes of water quickly with Unrestricted Full Flow (1275 l/min at 12 Bar)
  • Suitable for high/low pressures (0.2 Bar – 12 Bar)
  • Patent pending “self cleaning pilot” for use in clean/dirty water conditions
  • Soft open and close action preventing valve bounce and water hammer
  • Lock off plunger allows the valve to be manually locked to the off position
  • Strong compact design
  • Manufactured from strong, non corrosive UV stabilised materials
The Rain Relief Floats on this website are patent pending.
The Rain Relief Valves on this website are protected by NZ registered design application 422627 and Australian registered design application 201710480.
Hansen Rain Relief Valves are rigorously hand tested.