Thomas Dudley Niagara Dual Flush Pneumatic Valve
Important Product Notice: A brand-new, current-generation Thomas Dudley Niagara valve will be sent. It is fully backwards-compatible and engineered to twist directly into your existing installed Dudley cistern basket with no need to remove or replace the base cradle.
The Thomas Dudley Niagara 327628 is the authentic, WRAS-approved pneumatic dual-flush replacement valve designed specifically for Thomas Dudley concealed cistern suites, including the Vantage, Miniflo, and Royal ranges. Engineered for smooth air-operated activation, it provides factory 6/4-litre dual-flush performance (adjustable down to 5/3 or 4/2.6 litres for water conservation). Because it locks straight into your established Dudley basket via a quarter-turn bayonet fixing, maintenance can be carried out inside tight furniture or concealed cavities without disturbing water seals.
Identification Guide:
MPN: 327628 | Barcode (EAN): 5013824036125 | Compatible Ranges: Dudley Vantage, Miniflo, Royal & Illusion Concealed Cisterns | Outlet Size: 50mm (2" BSP) | Operation: Pneumatic (Twin Tube Air Operated) | Material: High-Grade Polypropylene / ABS
Key Features
- Direct Basket Retrofit: Twists straight into your existing Dudley basket in seconds — eliminates the need to remove the cistern or unbolt the bottom seal.
- Genuine Manufacturer Quality: Original Thomas Dudley replacement ensuring factory-grade seal integrity and precise flow rates.
- Water-Saving Dual Flush: Pre-set to standard 6/4-litre flush, easily adjustable to lower volumes to match your pan requirements.
- Pneumatic Actuation: Twin-tube pneumatic system provides ultra-light button push operation and flexible remote button placement up to 750mm.
- WRAS Approved: Fully compliant with UK water supply regulations and manufactured to BS 1212 standards.
Installation & Compatibility Note
This valve features a 50mm (2" BSP) base diameter. If you are replacing a faulty valve in an existing Dudley Vantage or Miniflo installation, leave the original basket clamped to the cistern base. Turn off the water, disconnect the two air tubes, twist the old body 90° anticlockwise to release, insert this new unit, twist clockwise to lock, and reattach the tubes.



