Biasi Diverter Valve Repair Kit BI1141501

Biasi Diverter Valve Repair Kit (BI1141501) The Biasi Diverter Valve Repair Kit (Part No: BI1141501) is a comprehensive internal service overhaul kit designed for the brass and composite hydraulic manifolds utilized across Biasi’s high-efficiency condensing and standard combination boilers. This targeted kit includes the core replacement cartridge assembly, mechanical sealing stem, internal shuttle plates, heavy-duty spring, and a complete configuration of high-tolerance seals. By renewing these dynamic internal wear parts, it restores responsive, leak-free transition tracking within the valve, enabling the boiler to cleanly separate and direct primary heated water between the space heating system and the domestic hot water plate heat exchanger. Flow Trairection Remediation: Eliminates the common system failure where primary heat tracks into the radiators during summer tap use, restoring full thermal efficiency exclusively to the domestic hot water circuit. Low-Friction Operation: Built with premium, low-friction internal glide shafts engineered to resist mechanical binding or sticking, ensuring a highly smooth mechanical stroke against the boiler actuator. High-Grade Resilient Seals: Packed with robust EPDM rubber O-rings designed to maintain structural seal integrity when exposed to constant thermal cycling, commercial central heating inhibitors, and abrasive magnetite sludge. Targeted Core Overhaul: Offers an efficient internal mechanical rebuild that restores full hydraulic block functionality, removing the logistical necessity and high part cost of replacing the entire manifold block. Compatible Models: Biasi Garda HE M96.24 SM/B — 47-970-25 Biasi Garda HE M96.24 SM/D — 47-970-27 Biasi Garda HE M96.28 SM/B — 47-970-26 Biasi Garda HE M96.28 SM/D — 47-970-28 Biasi Garda M90F 24S — 47-970-19 Biasi Garda M90F 24SR — 41-970-10 Biasi Garda M90F 28S — 47-970-20 Biasi Garda M90F 28SR — 41-970-11 Biasi Garda M90F 32S — 47-970-22 Biasi Parva M90 24S 2002 — 47-970-13 Biasi Parva M90 28S 2002 — 47-970-14 Biasi Riva Advance HE M110.24SM/C — 47-970-29 Biasi Riva Advance HE M110.32SM/C — 47-970-30 Biasi Riva Advance Iso M110B.24SM/C — 47-583-11 Biasi Riva Compact HE M96.24 SM/C — 47-970-23 Biasi Riva Compact HE M96.28SM/C — 47-970-24 Biasi Riva Compact M90E 24S — 47-970-17 Biasi Riva Compact M90E 28S — 47-970-18 Biasi Riva Compact M90E 32S — 47-970-21 Biasi Riva Plus M90D 24S — 47-970-15 Biasi Riva Plus M90D 24SR — 41-970-08 Biasi Riva Plus M90D 28S — 47-970-16 Biasi Riva Plus M90D 28SR — 41-970-09 Biasi A00981-01