Drayton ZA5/679-2 2 Port Valve 22mm

The V4073A Valve has been designed to control the flow of water in domestic central heating systems, where both radiator and hot water cylinder circuits are pumped. It is typically suited for small to medium sized installations

Automatic Bypass Valve suitable for all heating systems up to 10 bar static pressure where a boiler bypass is required or radiator thermostats are fitted. It provides a simple method of ensuring adequate flow through boilers which require a bypass as well as reducing system noise. In systems fitted with radiator thermostats, the valve opens automatically as the TRVs or zone valves close down and the resistance of the system starts to exceed the preset pressure limit.

The Drayton RT414 TRV provides control of individual room temperature. With integral thermostatic sensing head and reverse flow capability. The 15mm angle valve can flow or return mounted both vertically or horizontally.

Britain's best-selling range of thermostatic radiator valves sets the standards for design, performance and quality, including TRV4 lockshield and pushfit packs to suit most domestic and commercial heating systems.