Overview

The AVG PRV25F 25mm 1" inline pressure reduction valve is Australia Watermark approved and features a pressure adjustment range of 250-650kPa with a factory setting at 500kPa. The AVG pressure reduction valve has a full brass housing for the top assembly, where the adjustable spring and the pressure cartridge are located, unlike most other brands using plastic instead.

The AVG pressure reduction valve features the same threads, fitments and similar physical sizes with many other valve manufacturers such as Reliance, Tomson, AW, Nefa, Reflex and APO. This makes the AVG pressure reduction valve a perfect direct replacement to an existing valve with no plumbing pipe modifications required. 

The pressure reduction valves are commonly used in hot water services such as electric, heat pump, gas storage and solar hot water heaters across all mainstream brands in Australia such as Rheem, Vulcan, Rinnal, Dux, Aquamax, Thermann, Apricus and Solahart. 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. This design feature makes a pressure reduction valve more reliable than a pressure limiting valve, while functioning the same way in this application.

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 plumbing jobs in Brisbane. 

The pressure reduction valves can also be installed after water meters or just before entering houses. The pressure reduction valves can ensure a stable water supply pressure, despite the pressure fluctuations in the mains from the streets. 

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. 

Technical Details

• Manufacturer: AVG
• Australia Watermark Approved
• Model: PRV25F
• Specifications:
• Flow Rate: 155L/min@500kPa; 25.4L/min@250kPa
• Maximum Working Temperature: 80°C
• Maximum Upstream (Inlet) Pressure: 1600kPa
• Downstream (Outlet) Setting Pressure Range: 250 kPa - 650 kPa 
• Factory Pressure Setting: 500kPa
• Optional pressure gauge can be inserted for downstream pressure measurement via the BSP 6mm test plug 
• Extractable and serviceable cartridge with stainless steel filter mesh
• Thread Size: 1" BSP (25mm) Female Thread (25FI x 25FI)
• Physical Thread Measurement: 33.249mm, refer to the BSP vs Physical Thread Measurement Table in the photo gallery
• Material: DR Brass Body, Lead Free
• Intended Use: Hot water heaters and street mains water inlet into residential dwellings. 
• SKU: AVG-PRV25F and AVG-PRV25F-PRG

Package Contents

- AVG PRV25F 25mm 1" inline pressure reduction valve

- Package Weight 580g (690g with the optional gauge)