Altecnic / Caleffi 309 Series - 309570CST - Pressure & Temperature Relief Valve 3/4" 90°C 7 Bar 15mm • O-Ring features define leak

• O-Ring features define leak paths

Thermometer fits all sizes

This option is particularly useful if the tap is being used to rinse items

The valves are available in different pressures ranging from 3

Altecnic / Caleffi 309 Series - 309570CST - Pressure & Temperature Relief Valve 3/4" 90°C 7 Bar 15mm • O-Ring features define leakDescription This is a stock item. Order by 5pm Monday to Thursday and 4. 30pm Friday for same day despatch. The Altecnic Caleffi series 309 temperature & pressure relief valve controls and limits the temperature and pressure of the hot water contained in a domestic storage heater and prevents it from being able to reach temperatures of over 100C, with the formation of steam. On reaching the settings, the valve discharges a sufficient amount of water