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776 version with Shut-Off Valve base allows the Automatic Air Vent to be removed without draining the system
Bolted Flange: Galvanised Steel
The 900103 Fixed Swan Neck Tap With Fixed Nozzle (Cold Water) is WRAS approved and can be paired with the 900101 to provide a hot water supply
Rilsan paint coating and 1/2” BSP connection
Height: 440mm
Altecnic / Caleffi 311 Series Safety Relief Valve 3/4" x 3/4" F x F 5 Bar - 311550 dome 776 version with Shut-Off ValveDescription This is a stock item. Order by 5pm Monday to Thursday and 4. 30pm Friday for same day despatch. The Altecnic Caleffi series 311 and 312 safety relief valves are used in domestic hot water systems to protect the hot water cylinder and in heating systems to protect boiler and other components. The valve is selected for the required set pressure. As the pressure rises, when the discharge pressure is reached the valve opens and discharges to