Application
- Backup water supply control valve.
- The RainAid® valve and the rainaid2lis designed to be connected to a mains water supply on a rainwater retention
tank. It will provide a backup supply of water in the event of demand exceeding rain supply, whilst
ensuring maximum rainwater storage at the next rainfall.
Video
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RainAid Valve. |
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Requires Windows Media Player to be installed.
Operating Principle
Under normal conditions, rain water will the tank. If the rainwater level drops below a pre-set
level, the RainAid® valve will open to maintain the water level using mains water.
Standards
- Certified to Watermark standard AS1910:2004,
Lic 20368, SAI Global
- New Zealand patent. 328862
- New Zealand patent. 535912
- Australian patent. 736446
- RSA Patent. 98/8777
- Australian Class II Patent 1025211
Specifications
| Inlet |
20mm 3/4" BSP (male) |
- Cold mains pressure water connection.
- Minimum inlet pressure 55 kPa (8 P.S.I.).
- Maximum inlet pressure 1000 kPa (150 P.S.I.).
- Maximum water temperature 60˚C.
- Supplied with inlet strainer.
Flow Chart
Installation
- The RainAid® valve MUST NOT be fitted to tanks used partially or entirely for storm water
detention. (Detention is the slow release of water run-off to the storm water drain during and
after rainfall events).
- Do not restrict inlet water flow.
- Not to be modified.
- Valve must be installed horizontally.
- Overflow discharge must be visible.
- Overflow and air gap to comply with local standards (air gap of 3 x mains water inlet pipe diameter - 55mm -
complies with AS/NZS 3500.1)
- The minimum water level (L) is easily set at any height during installation by adjusting the cord length.
- Cord must hang freely.
- Failure to affix label, supplied with the valve, near the visible overflow discharge will void
Warranty.
- Some Australian states stipulate a minimum water level that must be maintained for fire fighting
purposes.
- Some Australian states stipulate a visible air gap.
Important Legal Notice
Overflow discharge must be visible. If overflow is discharging when there is no rainfall, isolate water
supply and call a plumber immediately. This discharge comes from your metered water supply. Water loss
is NOT covered by the manufacturers warranty.
The RainAid valve is a mechanical water shut-off device which requires periodic maintenance.
Every 6 months, check that the valve functions correctly. Gently push the lever down. When the
valve opens, release the lever. When the weight is submerged, the valve should close. If the valve fails
to shut off completely, it may be necessary to clean, service or replace it.
Warranty is limited to any fault found in a valve due to poor workmanship or materials that is returned
to Apex Valves Ltd within 2 year from the date of manufacture.
Servicing
- Servicing is not likely to be required if the valve is fitted to a mains water supply.
- Trough–Mate spanner is available for disassembling the valve for servicing if this is required.
- Servicing details are provided on the packaging.
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Brochure
Download the RainAid® brochure as a PDF* or contact us to have one sent to you.
Download as PDF
*Requires Adobe Acrobat Reader to be installed.
Product Codes
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