REDI-Non Return Valve
FEATURES:
- Mains sewage backflow prevention valve
- Dual flaps for added security
- Fits in-line with sewage pipe in new manhole
- Automatic operation with manual lock if required
We suggest a hierarchical approach to choosing your mains NRVS.
- Always fit a dual flap NRV if space exists for a new manhole between the existing manhole and the house
- If there is no space for a manhole but a Duck Bill NRV will fit choose this option next
- Next choice is a push fit NRV into your existing manhole
- If all else fails then you will have to resort to a PANSEAL that fits into your WC when needed
Push-Fit Non-Return Valve
FEATURES:
- Mains sewage backflow prevention valve
- Fits into existing manhole
- DIY solution
- Single flap valve can be manually locked shut
Duckbill Non-Return Valve
Features:
- Mains sewage backflow prevention valve
- Fits in-line with sewage pipe but new manhole not required
Appliance Non-Return Valve
Features:
- Backflow protection for washing machines and dishwashers
- Fitted internally (preferable) or externally
- Must be installed horizontally
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