0449 - Printed in Germany
9.0068.09
Pressure reducing
valve
312 / 315.5
Spare parts
Instructions for use
What to do......
if the downstream pressure
rises above the set pressure
in the case of a pressure reducing valve installed for the
purpose of reducing pressure in a hot water system, the
cause is very often due to pressure crossflow in a mixing
valve, due to the fact that the cold water supply has not
been fitted with a pressure reducer.
This occurs especially in the case of thermostatic mixing
valves, single-lever mixing valves or normal two-tap mixing
valves with clogged anti-splash nozzles.
Such faults can only be eliminated by installing the
pressure reducing valve in the main supply line, thus
reducing the pressure in both, the hot and cold water
supply systems to the same level.
R.W.C. Reliance Water Controls LTD.
Worcester Road, Evesham, WR11 4RA
England
Tel.:0386/47148+9 Fax.: 47028 Tx.:339717
0312.15.900 0,5-5,0 bar
0312.20.901 0,5-2,1 bar
0312.20.902 2,1-6,0 bar
0828.08.000
312
315.5
As an option a PRV 315.5 with
incorporated check-valve is
available.
This to protect up-stream
installations against pollution or /
and back pressure.
