Nuovo - Honeywell Valvola di bypass automatica dritta 22 mm DU144 - Consegna gratuita

New - Honeywell Straight Auto Bypass Valve 22mm DU144 - Free Delivery Items may be in original Honeywell packing or plain box. The Honeywell DU144 automatic bypass valve controls water flow in the heating circuit according to the water pressure across it and is used to maintain a minimum flow rate through the boiler and to limit circulation pressure when other water paths are closed.

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