Popular Cylinder RWC 3.5/6 Bar Inlet Control Multibloc 2 Piece Old Type

The RWC inlet control multibloc is a combined cold water inlet control assembly rated at 3.5/6 bar, supplied in the two-piece old type pattern. It is fitted to unvented hot water cylinders within the Popular Cylinder Spares cold water inlet controls range, where it regulates incoming mains pressure and controls the fill and expansion behaviour of the cylinder. The assembly forms part of the cylinder's safety and pressure control group.

• Water discharging from the cylinder's pressure relief valve without an obvious cause
• Mains pressure or flow at the hot outlets noticeably reduced or unstable
• Water weeping or dripping from the body of the inlet control assembly
• The valve failing to hold its set pressure, causing repeated relief valve operation
• Visible scale, corrosion or damage to the valve body or its connections

• Confirm your cylinder model against the fitment list above
• Check whether your existing assembly is the two-piece old type pattern, as the layout differs from later designs
• Verify the pressure rating marked on the existing inlet control matches 3.5/6 bar
• Check the condition of the connecting pipework and fittings before fitting