Altecnic 4 Bar 1/2" Temperature/Pressure Relief Valve

Product features:

• The Altecnic 309 temperature - pressure relief valves are used to control and limit the temperature and pressure of hot water contained in a domestic storage cylinder, preventing the water from reaching 100 degrees celsius.
• When the set conditions are reached, the valve discharges a sufficient amount of water to allow the temperature or pressure to return within the system's operating limits.
• The valves have been designed for use on unvented hot water systems.