Glow-worm Flow Switches

Glowworm Flow Switches also sometimes called a flow sensors are a device commonly fitted internally to Glowworm boilers and this boiler part senses when a hot water tap outlet has been opened (turned on) and there is demand for hot water, the water moves through the flow switch and then switches the boiler ignition sequence so that the domestic hot water is provided at the tap. All our Glowworm Flow Switches are new and genuine manufacturer spares.

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