Australian Valve Groups (AVG) Tri-Set selectable pressure limiting valve is the successor to the old PLV range. The Tri-Set is simply described as "one valve with three pressure settings". The Tri-Set range comes in 15mm and 20mm compression olive also 15mm and 20mm Female BSP connections. The Tri-Set incorporates three selectable pressure settings within the one compact valve. The selectable settings for the 15mm and 20mm are;
The AVG PLV is ideal for installation with high-pressure storage water heaters. When fitted to the inlet supply line to a water heater, its purpose is to control the inlet supply line pressure to a pre-set maximum, and to remain in the open position if the pressure in the supply line falls below the pre-set maximum. Other applications include dishwashers, washing machines (to reduce water hammer), tap mixers and water filtering systems.
High pressure may cause excessive discharge and possible premature failure of the relief valve. The maximum water pressure relates to the period of lowest water usage, this usually occurs during the night. In any mains pressure water heater installation, if the inlet water pressure exceeds 80% of the nominal set pressure of the operating relief valve, a Pressure Limiting Valve must be fitted to the cold inlet. If a cold water expansion control valve is fitted it will have a lower set pressure than the PTR valve and therefore will be the main operating relief valve.
In addition to these instructions, Pressure limiting valves (PLV) must be installed in accordance with AS/NZS 3500 National Plumbing and Drainage Code and all Government requirements must be met.
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The team at plumbonline, aim to provide the information you need to get a quality plumbing product direct to your door, building site or business at the best possible price. We are continually adding to our range, sourcing new products and working with our suppliers to remain competitive on price, service and on-time delivery. plumbonline's mission is to supply a quality product at a range of price points to suit all applications and let you make an informed choice. Service is paramount at plumbonline so if you need assistance we encourage you to contact us to ensure your purchase is right the first time every time. SAFETY WARNING - All Gas | Plumbing | Electrical items must be installed by a licensed Installer.