WTA® Relief Valve Type 14.3

WTA® Relief Valve is mainly used as bypass valve in small circuits.

Features And Benefits

  • Mainly used as bypass valve in small circuits
  • With lockable hand wheel cover and stem lock nut to prevent alteration of the set opening pressure
  • Changing the opening pressure takes place after removal of the hand wheel cover by turning the hand wheel; by so doing the outer pressure spring is tensioned and adjusted to a defined pressure
  • The valve is not compensated against backpressure

Technical Details


  • Carbon Steel 1.0619 / WCB
  • Stainless Steel 1.4408 / CF8M
  • Low Temperature Carbon Steel 1.6220 / LCB / LCC
  • Special Materials


  • Straight type
  • Y-type or corner-type with flanges or buttweld ends


For various media with inflammable, explosive, volatile or aggressive characteristics, whose emission into the atmosphere must be prevented.


  • Permissible working pressure acc. EN 1092 part 1
  • Face-to-face dimension acc. EN 558-1, EN 12982
  • Inspection and testing acc. EN 12266
  • Design in accordance with TA-Luft