Vaillant Diverter Valve Repair Kit

Vaillant Diverter Valve Repair Kit (140352) The Vaillant Diverter Valve Repair Kit (Part No: 140352) is a targeted internal mechanical overhaul solution engineered for the premium brass hydraulic distribution blocks utilized in early-generation Vaillant Turbomax combination boilers. This service kit contains the high-tolerance replacement cartridge assembly, central control stem, dynamic spring mechanisms, internal packing gland, and a complete layout of durable sealing gaskets. By renewing these critical, high-wear internal components, it eliminates mechanical sticking and internal tracking faults within the hydro-block, ensuring the boiler dynamically routes primary thermal energy cleanly between the space heating system and the domestic hot water plate heat exchanger. Internal Bleed Resolution: Repairs the classic cross-circuit failure where heated primary water leaks into the radiator network during summer tap operation, locking the thermal output exclusively to domestic hot water demands. Low-Friction Operation: Built with a precision-machined center stem and dynamic components that resist structural binding, ensuring smooth mechanical responses against the boiler's hydraulic pressure changes. Resilient Sealing Design: Packed with specialized rubber O-rings and packing seals engineered to withstand intense thermal cycling, system pressure fluctuations, and chemical central heating inhibitors. Cost-Efficient Overhaul: Provides a focused mechanical rebuild that restores factory-level hydraulic isolation without the high part cost and extended labor required to replace the entire heavy brass valve housing. Compatible Models: Vaillant Turbomax VUW 242/1E (1998–2001) — 47-044-02 Vaillant Turbomax VUW 242E (1995–1999) — 47-044-25 Vaillant Turbomax VUW 282/1E (1998–2001) — 47-044-06 Vaillant Turbomax VUW 282E (1995–1999) — 47-044-26 Vaillant A00638 140352