AW PR20LF Inline ¾" 20mm Pressure Reduction Valve, 150-600kPa adjustable

The AW (Austworld) Inline Pressure Reduction Free Lead Valve is Australia Watermark approved with BSP 20mm 3/4" female internal threads and a pressure adjustment range of 150-600kPa (500kPa factory set). Pressure reduction valves are commonly installed in residential plumbing operations such as after water meters or just before entering houses. These inline pressure reduction valves maintain a consistent water pressure supply, despite the fluctuations in the mains water supply pressure from the streets. 

The pressure reduction valves serve as a more reliable and versatile alternatives to traditional pressure limiting valves, when used in hot water services such as electric, heat pump, gas storage and solar hot water heaters. The pressure reduction valve employs a membrane design inside with a stiff pre-loaded adjustable spring, opposed to a sliding piston mechanism found in a pressure limiting valve which often causes failures from clogging up. 

In real world installations, it is sometimes found that pressure limiting valves cannot limit pressures sufficiently in places where unusually high street mains pressures are present. This can cause troubles with ECV and PTR valves leaking on hot water services. The pressure reduction valves can be used in such situations and offer a far better pressure control from our infield experiences over the years in our own pluming jobs in Brisbane. 

The pressure reduction valve comes with a BSP 6mm test plug inbuilt, where an optional pressure gauge can be inserted for pressure measurement at the outlet. The optional pressure gauge is shown in the photo gallery and can be bought for extra. It must be noted that the pressure gauge is only intended to be used as a measurement tool and must be removed after use, as it could rust inside out if left in a wet environment for prolonged periods of time.