Rain Relief Valves Rapid-Flo and Slo-Flo

Supplement your rainwater tank during dry weather spells with a reliable Full Flow Rain Relief Valve or a Slo-Flo restricted Rain Relief Valve

NZD $3.25$143.75
$143.75
Part No:  HRRRF152025 
Hansen – Rapidflo Valve 15/20/25 Long Tail
HRRRF - Hansen Rapid-Flo and Slo-Flo Rain Relief Valves
1$143.752 - 9$129.3810+$115.00
SKU:  HAN-HRRRF152025
$143.75
Part No:  HRRRF324050 
Hansen – Rapidflo Valve 32/40/50 Long Tail
HRRRF - Hansen Rapid-Flo and Slo-Flo Rain Relief Valves
1$143.752 - 9$129.3810+$115.00
SKU:  HAN-HRRRF324050
$143.75
Part No:  HRRSF1520 
Hansen – Sloflo Valve 15/20 Long Tail
HRRRF - Hansen Rapid-Flo and Slo-Flo Rain Relief Valves
1$143.752 - 9$129.3810+$115.00
SKU:  HAN-HRRSF1520
$57.50
Part No:  HRRDIA 
Hansen – 25mm Rain Relief Diaphragm & SS Spring
Hansen Check Valve and Foot Valve Parts
1$57.502 - 9$25.8810+$23.00
SKU:  HAN-HRRDIA
$11.10
Part No:  HRRNUTG 
Hansen – Rain Relief Valve Body Cap Nut
HRRNUTG - Hansen Valve Body Cap Nut
1$11.102 - 9$5.0010+$4.44
SKU:  HAN-HRRNUTG
$19.16
Part No:  HRRLP 
Hansen – Rain Relief Locking Plunger
1$19.162 - 9$8.6210+$7.66
SKU:  HAN-HRRLP
$30.66
Part No:  HRRFCAPASS 
Hansen – Rain Relief Rapid~Flo Cap Assembly
1$30.662 - 9$13.8010+$12.26
SKU:  HAN-HRRFCAPASS
$26.84
Part No:  HRRARMASS 
Hansen – Rain Relief Arm Assembly
1$26.842 - 9$12.0810+$10.74
SKU:  HAN-HRRARMASS
$76.66
Part No:  HRRWFLOAT 
Hansen – Rain Relief Weighted Float
1$76.662 - 9$34.5010+$30.66
SKU:  HAN-HRRWFLOAT
$17.26
Part No:  HRRCORD 
Hansen – Rain Relief 2.5m Cord
Hansen Cord
1$17.262 - 9$7.7710+$6.90
SKU:  HAN-HRRCORD
$23.00
Part No:  HRRWC 
Hansen – Rain Relief Weight & Carrier
1$23.002 - 9$10.3510+$9.20
SKU:  HAN-HRRWC
$23.01
Part No:  HMAL15 
Hansen – Long Tail Adaptor with O-Ring Seal 25x15mm
HMAL - Hansen Long Male Adaptors with O-Ring Seal
1$23.012 - 9$6.9010+$6.14
SKU:  HAN-HMAL15
$23.01
Part No:  HMAL20 
Hansen – Long Tail Adaptor with O-Ring Seal 25x20mm
HMAL - Hansen Long Male Adaptors with O-Ring Seal
1$23.012 - 9$6.9010+$6.14
SKU:  HAN-HMAL20
$15.34
Part No:  HMAL25 
Hansen – Long Tail Adaptor with O-Ring Seal 25x25mm
HMAL - Hansen Long Male Adaptors with O-Ring Seal
1$15.342 - 9$6.9010+$6.14
SKU:  HAN-HMAL25
$19.16
Part No:  HMAL32 
Hansen – Long Tail Adaptor with O-Ring Seal 25x32mm
HMAL - Hansen Long Male Adaptors with O-Ring Seal
1$19.162 - 9$8.6210+$7.66
SKU:  HAN-HMAL32
$10.55
Part No:  HMAL40 
Hansen – Long Tail Adaptor with O-Ring Seal 25x40mm
HMAL - Hansen Long Male Adaptors with O-Ring Seal
1$10.552 - 9$9.5010+$8.44
SKU:  HAN-HMAL40
$10.55
Part No:  HMAL50 
Hansen – Long Tail Adaptor with O-Ring Seal 25x50mm
HMAL - Hansen Long Male Adaptors with O-Ring Seal
1$10.552 - 9$9.5010+$8.44
SKU:  HAN-HMAL50
$23.63
Part No:  HRRSFBODY 
Hansen – 25mm Rain Relief Slo~Flo Valve Body
1$23.632 - 9$21.2710+$18.90
SKU:  HAN-HRRSFBODY
$3.25
Part No:  HRRSFFR 
Hansen – Rain Relief Slo~Flo Flow Restrictor
1$3.252 - 9$2.9310+$2.60
SKU:  HAN-HRRSFFR
$3.25
Part No:  HRRSFOA 
Hansen – Rain Relief Slo~Flo Outlet Adaptor
1$3.252 - 9$2.9310+$2.60
SKU:  HAN-HRRSFOA

Please click on the headings to show more information on the Hansen Rain Relief Valves - Rapid-Flo and Slo-Flo Valves.

Hansen Rapid-Flo & Slo-Flo Rain Relief Valves
Sizes & Description

Hansen Code Size
HRRRF152025
Rapid~Flo Valve
Small Adaptors - Long Tail Male
15, 20 & 25mm
HRRRF324050
Rapid~Flo Valve
Large Adaptors - Long Tail Male
32, 40 & 50mm
HRRSF1520
Slo~Flo Valve
Small Adaptors - Long Tail Male
15, 20 & 25mm
HRRDIA 25mm Valve Diaphragm
with Stainless Steel Spring
HRRNUTG Valve Body Cap Nut
HRRRFCAPASS
Rapid~Flo Valve
Cap Assembly for Valve
HRRARMASS Valve Arm Assembly
HRRWFLOAT Valve Weighted Float
HRRCORD Valve 2.5m Cord
HRRWC Valve Weight & Carrier
HMAL15 25mm BSPT to 15mm BSPT
HMAL20 25mm BSPT to 20mm BSPT
HMAL25 25mm BSPT to 25mm BSPT
HMAL32 25mm BSPT to 32mm BSPT
HMAL40 25mm BSPT to 40mm BSPT
HMAL50 25mm BSPT to 50mm BSPT
HMAL15 25mm BSPT to 50mm BSPT
HRRSFBODY 25mm Female BSPT Diaphragm Valve Body
for Slo~Flo Rain Relief Valve

Rapid~Flo Valve Infographic

Rapid~Flo Valve Infographic

Slo~Flo Valve Infographic

Slo~Flo Valve Infographic

Hansen Rapid-Flo & Slo-Flo Valves
Product Information

  • Features & Applications
  • Maintains a minimum water level in rainwater tanks.
  • 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 locked to the off position manually.
  • A strong, compact design manufactured from strong, non-corrosive, UV-stabilised materials.
  • Rapid~Flo Valve - Delivers high volumes of water quickly with unrestricted full flow (1275 l/min at 12 Bar).
  • Slo~Flo Valve - Delivers consistent 2.0 l/min.
  • Download the Hansen Rapid~Flo Valves Brochure.
  • Download the Hansen Slo~Flo Valves Brochure.
  • Intellectual Property
  • The Hansen Rain Relief Floats on this website are patent pending. The Hansen Rain Relief Valves on this website are protected by NZ registered design application 422627 and Australian registered design application 201710480.