AVG PTR15-1000-LF 15mm 1000kPa PTR / TPR Pressure Temperature Relief Valve Flexible Hose • Model: NRIBV-20F

•    Model: NRIBV-20F

5°C to 90°C

In a direct flow open loop solar hot water system in Australia

the 3/4" 20mm thread size will work also

AVG PTR15-1000-LF 15mm 1000kPa PTR / TPR Pressure Temperature Relief Valve Flexible Hose • Model: NRIBV-20FOverview Australian Valve Group (AVG) PTR15 1000 LF 15mm (1 2") 1000kPa PTR Pressure and Temperature Relief Valve (also known as TPR valve) is cross compatible with other popular makes such as Reliance HT55 PTR valve with same fitments and functions. During the hot water services' heating cycles, the volume of water will expand as the temperature increases. This volume expansion creates excessive pressure inside the water cylinder and must be