The HTX1503 (HT577 Lead Free) Pressure and Temperature Relief valve ensures that the temperature of the water in a pressurised unvented water heater cannot exceed 99°c in the event that the normal thermostatic controls fail.
Maximum temperature (all models) 99 degrees C
Rated Capacity (AS1357.1): DN15mm - 10 kW
Pressure Setting 700kPa
DIMENSIONS:
Model Width (W) Height (H) Outlet (O)
HT55 68mm 98mm DN15
MATERIALS:
Body - Lead Free Brass
Internal Parts - Lead Free Brass and Stainless Steel
Seat Disc - Silicon
Pressure Spring - Stainless Steel
Piston - Acetal / Lead Free Brass