The one and only springless WAFER check valve

The springless Wafer check valve for water treatment, vacuum and gas applications. Maintenance free. Suitable for horizontal, vertical up and down installation (even in vertical pipes with flow down). Up to 220°C.

YGROS patented technology sets new standards in the world of plant design, thanks to a patented magnetic principle replacing the conventional spring in Non Return Valves.

For fluids and steam.

  • No more springs that can break or misfire
  • No flow obstructing components
  • No flicker
  • No stagnation point, no media entrapment
  • No maintenance needed

Benefits at a glance:

  • No chatter: the magnetic principle is particularly suitable for compressible media (such as gas) or low pressure processes. Very low difference pressure needed to keep the disc fully open
  • High chemical resistance / longer valve life: due to the 1.4404 (AISI 316L) / 1.4462 (Duplex) construction
  • Safe closing: provided by integral magnets
  • Any installation position possible: unlike other spring less check valves, YGROS WAFER can be installed in the horizontal, vertical up and down positions
  • Energy saving (laminar flow): the innovative working principle and design allow for a smooth flow, minimizing turbulence and pressure drop
  • Maintenance free

For more information and quotation please contact

Peter viggo Petersen

Technical Director / CTO

Peter Viggo Petersen

Technical Director / CTO
Aquatiq Food Factory
+47 990 93 301
[email protected]

Peter Viggo Petersen

Special competencies

  • Hygienic processing plants
  • Project management
  • Planning and executing projects for new installations or rebuilding of processing plants for hygienic production of Dairy products, Food, Fish and Pharmaceuticals


  • 1988-1992 – Engine fitter, Hammerum Tullebølle/Svendborg
  • 1992-1996 – Engineer, Odense Teknikum Denmark


  • CTO- Aquatiq Food Factory (2014-Present)
  • Project Manager Food & Pharma, ÅF
  • Project Manager – SPX APV Norway AS