Vaillant Turbo Max Plus 824 828 837 E Diverter Valve Body 252457

Vaillant Diverter Valve Body (252457)

The Vaillant Diverter Valve Body Assembly (Part No: 252457) is a complete, ruggedly engineered hydraulic distribution block manufactured specifically for Vaillant's iconic ThermoCOMPACT, TURBOmax Plus/Pro, ecoMAX, and early ecoTEC condensing and standard combination boiler ranges. Serving as the central intersection point for the appliance's primary water delivery, this structural housing holds the internal shifting gates and cartridge assemblies. When a domestic hot water demand is generated, the valve responds immediately to divert primary heated fluid away from the central heating loop and focus it directly into the secondary plate heat exchanger.

• Cross-Circuit Fault Eradication: Corrects the prevalent system breakdown where primary central heating energy bleeds across damaged internal walls or seats into the radiator pipework during summer domestic tap use.

• Durable Structural Casting: Built using industrial-grade, thermal-shock resistant materials to eliminate structural deformation, internal micro-leak tracking, and stress cracking under continuous operational pressure.

• Streamlined Flow Pathing: Internal tracking gates are hydro-dynamically shaped to minimize physical flow resistance, optimizing water circulation speeds while cutting noise from localized system turbulence.

• Flawless OEM Integration: Designed as a direct drop-in replacement housing that perfectly matches the factory union positions, ensuring a clean, watertight connection with the boiler's original pipework tail configuration.

Compatible Models:

• VAILLANT AQUAPLUS VUI

• VAILLANT ECOMAX 824/2 E-C

• VAILLANT ECOMAX 828/2E

• VAILLANT ECOMAX 835E

• VAILLANT ECOTEC EXCLUSIVE 832

• VAILLANT ECOTEC EXCLUSIVE 838

• VAILLANT TURBOMAX PLUS 824E

• VAILLANT TURBOMAX PLUS 828E

• VAILLANT TURBOMAX PLUS 836E

• VAILLANT TURBOMAX PLUS 837E

• VAILLANT TURBOMAX PRO 24E

• VAILLANT TURBOMAX PRO 28E

• VAILLANT VUI 362-7

• VAILLANT VUI 362-7 R3

• VAILLANT VUW 242/2-3 R1

• VAILLANT VUW 242/2-3 R2

• VAILLANT VUW 242/2-3 R3

• VAILLANT VUW 242/2-5 R1

• VAILLANT VUW 242/2-5 R2

• VAILLANT VUW 242/2-5 R3

• VAILLANT VUW 242-3

• VAILLANT VUW 242-5

• VAILLANT VUW 246/2-C

• VAILLANT VUW 282/2

• VAILLANT VUW 282

• VAILLANT VUW 326

• VAILLANT VUW 356

• VAILLANT VUW 362

• VAILLANT VUW 386

• Vaillant Aqua Plus VUI 362-7 2002-2005 — 47-044-29

• Vaillant Aqua Plus VUI 362-7 R3 2005-2008 — 47-044-29 (306592)

• Vaillant Ecomax 824/2E VUW 246/2-C 2001-2007 — 47-044-12

• Vaillant Ecomax 828/2E VUW 286/2-C 2001-2007 — 47-044-17

• Vaillant Ecomax 835E VUW 356-C 2002-2008 — 47-044-27

• Vaillant Ecotec Exclusive 832 VUW 32/4 2007-2016 — 47-044-37

• Vaillant Ecotec Exclusive 838 VUW 386/4 2007-2016 — 47-044-38

• Vaillant Turbomax Plus 824E VUW 242/2-5 2001-2002 — 47-044-04-2001-2002

• Vaillant Turbomax Plus 824E VUW 242/2-5 R1 2002-2003 — 47-044-04-R1

• Vaillant Turbomax Plus 824E VUW 242/2-5 R2 2003-2004 — 47-044-04-R2

• Vaillant Turbomax Plus 824E VUW 242/2-5 R3 2004-2008 — 47-044-04-R3

• Vaillant Turbomax Plus 828E VUW 282/2-5 2001-2002 — 47-044-09-2001-2002

• Vaillant Turbomax Plus 828E VUW 282/2-5 R1 2002-2003 — 47-044-09-R1

• Vaillant Turbomax Plus 828E VUW 282/2-5 R2 2003-2004 — 47-044-09-R2

• Vaillant Turbomax Plus 828E VUW 282/2-5 R3 2004-2008 — 47-044-09-R3

• Vaillant Turbomax Plus 837E VUW 362/2-5 2002-2004 — 47-044-28

• Vaillant Turbomax Plus 837E VUW 362/2-5 R3 2004-2008 — 47-044-28 R3

• Vaillant Turbomax Pro 24E VUW 242/2-3 2001-2002 — 47-044-10-2001-2002

• Vaillant Turbomax Pro 24E VUW 242/2-3 R1 2002-2003 — 47-044-10-R1

• Vaillant Turbomax Pro 24E VUW 242/2-3 R2 2003-2004 — 47-044-10-R2

• Vaillant Turbomax Pro 24E VUW 242/2-3 R3 2004-2008 — 47-044-10-R3

• Vaillant Turbomax Pro 28E VUW 282/2-3 2001-2002 — 47-044-11-2001-2002

• Vaillant Turbomax Pro 28E VUW 282/2-3 R1 2002-2003 — 47-044-11-R1

• Vaillant Turbomax Pro 28E VUW 282/2-3 R2 2003-2004 — 47-044-11-R2

• Vaillant Turbomax Pro 28E VUW 282/2-3 R3 2004-2008 — 47-044-11-R3