Popular Cylinder Reliance 3.0 Bar PRV 100 Series PREL100014

The Reliance 3.0 bar pressure reducing valve (PRV) is a 100 series sealed system control valve with 3/4 x 1 F x F BSP connections, manufactured by Popular Cylinder Spares. It regulates incoming mains pressure to a set 3.0 bar on unvented hot water cylinders and sealed heating systems. The high capacity body suits installations with a higher flow demand.

• Discharge from the cylinder pressure relief valve, indicating the PRV is passing or holding pressure above its setting
• Hot water temperature or flow fluctuating when a tap or shower is opened elsewhere in the property
• Cylinder pressure gauge reading above the set 3.0 bar under normal draw-off
• Water hammer or banging in the pipework when inlet valves close
• Scale or debris visible at the valve body, or a weeping connection at either port

• Confirm the cylinder or sealed system requires a 3.0 bar PRV, as the rating must suit the vessel and its relief valve
• Check the connection sizes and threads: 3/4 in and 1 in female BSP
• Confirm the 100 series body will seat on the existing cold water inlet control assembly
• Check that incoming mains pressure is suitable for the valve and the property's sealed system design