AVG NRIBV-15INV Internal Flare 15mm Non Return Isolation Duo Valve Pressure & Temperature Relief Valve which filters debris from the

which filters debris from the water stream

this flow rate is found to be most efficient due to the laminar flow property of the water and hot water stratification effect in the water tank

Connection Threads: BSP 3/4" (20mm) Female Swivel Loose Nut

gas storage and heat pump tanks/water heaters

AVG NRIBV-15INV Internal Flare 15mm Non Return Isolation Duo Valve Pressure & Temperature Relief Valve which filters debris from theOverview AVG NRIBV 15INV 15mm internal flare (also known as inverted flare) non return isolation duo valve is Watermark approved. The non return isolation duo valve features a durable metal butterfly handle and an inbuilt one way check valve which isolates the residential hot water system from the mains supply. The duo valve can be manually switched on and off with its quarter turn ball valve operation, allowing for easy maintenances and services. The