AVG Hot Water Expansion PTR Valve 15mm Blue 850KPA Compatible_Thermann Sensor may look different to

Sensor may look different to the picture in the listing

Delivery head

Simple and easy to assemble - all installations are done the same

If you find moisture

Should the consumption pattern change

AVG Hot Water Expansion PTR Valve 15mm Blue 850KPA Compatible_Thermann Sensor may look different toHot Water Expansion PTR Valve 15mm Blue 850KPA The Pressure and Temperature Relief valve (PTR) is designed to relieve the increase in pressure caused by water expansion during the normal heating cycle. The valve will then relieve the increase in pressure by releasing drips of hot water to the drain line. Should the electrical temperature cut out device cease to operate correctly, the water will overheat. The temperature probe will then open the PTR