420/430 Advanced FIT AODD Pumps Now in Aluminum


Wilden, part of PSG, a Dover company and a worldwide leader in air-operated double-diaphragm (AODD) pump technology, is pleased to announce the release of aluminum versions of its 420/430 Advanced FIT AODD pumps. Featuring bolted product containment, easier maintenance and more efficient operations, Wilden 420/430 Advanced FIT pumps have been specifically designed to be direct replacements for existing 38 mm (1-1/2”) pump installations. The release of the aluminum 420/430 Advanced FIT pumps now completes the Advanced FIT pump line, which is available in 38 mm (1-1/2”) through 76 mm (3”) sizes with either aluminum or stainless steel wetted path options.

Providing increased performance with no repiping necessary, Advanced FIT pumps precisely “FIT” bolt-to-bolt and pipe-to-pipe in existing fluid-handling piping systems that utilize competitor pumps or Wilden Original and Advanced pump models. Wilden Advanced FIT pumps feature superior flow rates and easier installation compared to other brands. They have been engineered to be an easy, cost-effective way to enhance and upgrade existing pump performance with superior bolted product containment.



  • Pro-Flo SHIFT Air Distribution System affords outstanding energy efficiency
  • Pro-Flo S ADS offers high operational flexibility
  • Wide range of diaphragms for greater diversity in fluid compatibility
  • 420 comes with NMPT or BSPT threaded connections
  • 430 available with ANSI or DIN flanged pipe connections
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