Hi-Flow Flap Valves allow a rapid flow of water through a double sealed, self cleaning valve that cannot be over rotated and left open. Vented Flap Valves allow a flow of air over the surface of the water which improves water quality and prevents a vacuum forming when large quantities of water are quickly drawn from the tank/cistern.
Features and Benefits
- Mosquito and vermin proof
- Allow stored water to breathe
- 1/32″ aperture, grade 316 stainless steel mesh
- To suit 3 in or 4 in coupling
- Double self-cleaning seal with flaps that cannot be over-rotated and left open
Manufacturer: Rain Harvesting Pty
Keep your tank “breathing” safely
Keeping your tank ventilated helps to protect your rainwater quality – but only if you can also keep mosquitoes out. The Flap Valve Vent Screen lets you can do both, safely and effectively. It also prevents a vacuum forming when large quantities of water are quickly drawn from your tank.
Mosquito-proof your tank outlets
Flap Valve Vent Screen protects your rainwater quality. The hinged “flap” or “door” features a mosquito-proof 955 micron stainless steel screen that stops mosquitoes and other pests from getting into your tank via your horizontal outlet pipes. It self-closes to seal off your tank outlets whenever water is not passing through.
Let overflowing water out
The Flap Valve Vent Screen’s responsive hinged flap automatically opens to allow overflowing water to pass out of your tank at a high flow rate.
Secure your system with Rain Harvesting Flap Valves. Securing a Flap Valve to end of your tank and downpipe outlets ensure pests and insect can’t enter your Rain Harvesting system and harm your rainwater.