Time to Replace Your DA3+ Valve

Because of necessary upgrades and constant innovation to create the most efficient and sustainable valves possible, SPX FLOW no longer offers the APV DA3+ Series of valves as new equipment. But since there are DA3+ valves in operation around the world, the NEW DA4 valve insert can be installed in the OLD DA3+ housing. This is a simple process that provides the latest valve technology without major modifications to your plant. Upgrading typically takes between 5 - 15 minutes. Learn more about the APV D4 / DA4 Series - Double Seat Mix Proof Valves.

Used for the reliable separation of dissimilar fluids, our new D4 Series meets today’s demand for production flexibility, increased productivity, rapid return on investment (ROI), and improved product quality across the food & beverage, dairy, personal care, and brewing process industries.

Benefits of upgrading from DA3+ to DA4 include:

  • Integrated position
  • Improved seal design to increase the longevity
  • An open yoke for leak detection and prevention of heat transferring
  • Fully welded actuator to mitigate corrosion problems
  • Low air supply required to actuate the valve
  • Slimmer actuator for easier installation and service

Not ready to upgrade? Not a problem.

We understand if you want to continue using your DA3+ valve, which is why we offer original DA3+ spare parts to ensure that any downtime is minimal. Please keep in mind that DA3+ valves require OEM parts to remain under warranty.

Whether upgrading to new the new D4 Series, or servicing existing equipment, we are here for you. Explore the D4 series.

Where To Buy


  • Valve Key for your DA3+ Series Double Seat Mixproof Valve
  • DA3+ Double Seat Mixproof Valve User Manual GB | DE | DK | ES | FR
  • DA3+ Double Seat Mixproof Valve ATEX User Manual GB | DE