477
Temperature and pressure relief valve for solar heating systems

It provides automatic temperature and pressure relief protection for hot water and storage tank.
It is equipped with a manually operating lever.
The valve lever must be manually operated at least once a year to insure that water-ways are clear.
Body in antidezincification brass.
105 mm extension thermostat.
Setting temperature: 90°C.
Power rating: 25KW.
Setting pressure: 7 bar.
Threads: ISO228 (equivalent to DIN EN ISO 228 and BS EN ISO 228).