Thomas Dudley Vantage Pneumatic Flush Valve Diaphragm Seal — 314574
The Thomas Dudley 314574 is a genuine replacement flat diaphragm seal designed specifically for the Niagara Vantage pneumatic air-operated flush valve. This high-quality rubber seal is essential for maintaining a watertight closure in Vantage concealed cisterns. It is compatible with both single and dual flush models, provided the valve was manufactured before 2010. Replacing a worn seal is a cost-effective way to stop water constantly running into the pan and restore the efficiency of your cistern.
Is your valve Newer or Older?
Thomas Dudley Vantage valves use two different seal profiles depending on the date of manufacture. This listing is for the FLAT version (Pre-2010).
Identification Guide:
MPN: 314574 | Outer Diameter: 65mm | Centre Hole: 38mm | Profile: Flat (for Pre-2010 valves)
Key Features
- Specialized Compatibility: Designed exclusively for the Thomas Dudley Vantage flush valve.
- Pre-2010 Version: Flat design specific to earlier Niagara pneumatic models.
- Versatile Use: Suitable for both single and dual flush cistern configurations.
- OEM Quality: Genuine Dudley product ensures a precise fit and long-lasting seal.
Installation Note
Before ordering, please confirm your valve type. This seal is 65mm in diameter with a 38mm centre and has a flat profile. To install, carefully remove the valve from the cistern, peel off the old perished washer, and stretch the new genuine Dudley seal into position.