Product code: 449921
An Alpha DHW diaphragm seal kit for use in the diverter valve section of Alpha's CB, HE, CD and SY range boilers. A directional water device in combi boilers, a diverter valve directs hot water into either a heating system or a hot water system. This feature means that combis are able to provide both heating and hot water without the need for a storage cylinder. This diaphragm is designed to move a pin to operate a microswitch that sends a message to the boiler's PCB (printed circuit board). To help you find the right parts for your jobs, go to the industry leading parts identification tool, PartsArena, giving you quick access to over 20,000 exploded diagrams, 10,000 images & 20,000 products. FREE to Wolseley trade account customers.