Code: PRVSU536SV Categories: ,

536 PRV Gauge 0.5-6 bar Serv Valves SU

From £195.00 £234.00 inc. vat


The 536 Pressure Reducing Valve from Arrow Valves is designed to provide a constant outlet pressure despite varying inlet pressures. The outlet pressure is adjustable between 0.5 and 6 bar. The inlet pressure must be higher than the desired outlet pressure. The outlet pressure is factory set at 3 bar and adjustments can be made at any time by removing the tamperproof disc on top and inserting the hexagon key (supplied). Turn clockwise to increase the pressure. A pressure gauge is supplied with each PRV (DN65 has two gauges), which indicates the outlet pressure. This may be removed and a plug fitted (supplied) or a self-seal probe test point can be supplied. Two gauge ports are provided to allow right and left configurations. This direct acting PRV may be installed in horizontal or vertical pipes. Flat-faced unions enable the valve to be quickly installed and orientated and a range of connections is available to suit various pipes.


Reducing excessive mains pressure; Controlling pump outlet pressure; Pressure regulation per floor; Water conservation.

Product Specification
  • Integral Servicing Valves Yes
  • Pilot Operated No
  • Pressure Outlet 0.5-6 bar
Specification Clause

Where indicated on the drawing, a Pressure Reducing Valve shall be fitted – model PRV536 – as distributed by Arrow Valves Ltd – Tel 01442 823123 The PRV shall be direct acting and have an adjustable outlet pressure ranging from 0.5 – 6 bar and have a maximum supply pressure of 25 bar. The seat shall be stainless steel. The pressure drop from a nominal 4 bar shall be less than 0.8 bar @ 2 m/s pipe velocity. The design shall be of the removable cartridge type with integral 500 micron strainer. A pressure gauge shall be provided to indicate the downstream pressure. The body shall be DZR brass with solder union connections for secure connection to copper tube[1],[2].

Data Sheets


prv536datasheet-1.pdf (649.28 KB)