Stop inaccurate water meter counts with
Rotem's 3/4" UFR

Unregistered Flow Regulator
How does the UFR work?
The UFR is a differential non-return valve, designed in such a way that the pressure difference required to
open it is more than that required to keep it open. The pressure difference to open the UFR is 0.4 bar,
whilst the pressure difference to keep it open is 0.1 bar.
When a leak develops the downstream pressure drops.

When the downstream pressure drops below 0.4 bar of that of the upstream pressure, the UFR opens and
allows for a flow rate above that of the measurement threshold.

The free flow of water through the UFR equalizes the pressure across the UFR and allows it to close. The
continuing leak downstream to the UFR will make this operation repeat itself over and over again. Every
time the UFR opens, a quantity of water passes through the water meter at a flow rate above the
measurement threshold of the water meter and so the flow is measured.
Item Cost £55.00 + Vat
22-24 Denington Road, Wellingborough, Northants, NN8 2QH - Telephone Number 01933 223278
Email elmltd@aol.com