Altecnic / Caleffi 309 Series Pressure & Temperature Relief Valve 1/2" 90°C 7 Bar - 309473CST 7 barg • Available with NPT thread:

• Available with NPT thread: Fig

- Ductile Iron Body

• 32 bar from -10 to 120ºC

Materials: Ductile Cast Iron (EN-GJS-400-15 EN1563)

822 Y-Type Strainer

Altecnic / Caleffi 309 Series Pressure & Temperature Relief Valve 1/2" 90°C 7 Bar - 309473CST 7 barg • Available with NPT thread:Description 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 is designed to regulate and limit the temperature and pressure within domestic hot water storage heaters. It prevents the water from exceeding 100C and forming steam. When the pre set limits are reached, the valve safely discharges water into the atmosphere to restore pressure