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Images shown above are of the Standard NRV2


Patent No. 2440412

Whole site protection against backflow:

Introducing NRv2® a simple, cost effective way of protecting water services from backflow issues caused by boilers and / or faulty valves in older boundary boxes.

A simple “plug and play” system designed to fit between a water meter and manifold in ANY boundary box, NRv2 ®can either upgrade any backflow protection up to fluid category 3 or remediate failing apparatus in the highway without excavation.

NRv2® can be used with any concentric meter, is quick and simple to install, requiring no special tools or excavations, and at around £5.00 per unit is more than cost effective when comparing the price of replacing a boundary box (£250.00+)

Also for use with equestrian, agricultural or park home situations – essentially anywhere where additional protection against backflow is required within Water Regulations.

NRv2® is fully approved by WRAS and Kiwa

NRv2® is fully approved by WRAS and Kiwa

Please see also the derivatives and applications for NRv2® below.



Standard NRv2, standard meter port cap with universal hose connector.
Converts every boundary box to a flushing point
– use to wash down after excavations.

With attenuation device fitted:
NRv2 with attenuation device to deliver 9 litres / minute at 2 bar maximum.