Pressure Reducing Valve (PRV) - JRG Industrial
Part Number: PRV1300
The 1300 PRV from Arrow Valves is designed to provide a constant outlet pressure despite varying inlet pressures. The 1300 range has exceptionally high material and performance specifications. Three outlet pressure ranges are available – see specification. The inlet pressure must be higher than the desired outlet pressure.
The outlet pressure is factory set at 4 bar (standard model - model PRV1310) and adjustments can be made at any time by inserting the hexagon key (supplied) through the top cover. Turn clockwise to increase the pressure.
A pressure gauge is supplied with each PRV, which indicates the downstream pressure. This may be removed and a plug fitted (supplied) if required. 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 pipe connectors is available to suit various pipes. Upstream and downstream Servicing Valves are strongly recommended to avoid draining for maintenance – e.g. cleaning internal strainer. See factory SV versions - with compression ends.
Where indicated on the drawing, a Pressure Reducing Valve shall be fitted as distributed by Arrow Valves Ltd - Tel 01442 823123 www.arrowvalves.co.uk. The PRV shall be direct acting and have an adjustable outlet pressure ranging from 2.0 – 6 bar1 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 0.7 bar @ 2 m/s pipe velocity. The valve shall have an integral 1000 micron strainer. A pressure gauge shall be provided to indicate the downstream pressure. The body shall be gunmetal with solder union connections for secure connection to copper tube2,3.
Amend as required:
 0.5 – 2.0 bar
 6.0 – 10.0 bar
 The PRV shall feature full-bore DZR servicing valves to enable strainer to be cleaned.
 male union connections
• Reducing excessive mains pressure
• Controlling pump outlet pressure
• Pressure regulation per floor
• Water conservation
• Isolating Valves