Lochhamer Schlag 6 – D-82166 Graefelfing / Germany

Typ DUKE with handgear DN 125 / 150

Compact 3/2-way ball valve assembly model DUKE DN 25 .. DN 200



Function deployment of compact 3/2-way ball valve assembly model DUKE


  • Nominal diameter: DN 25 .. DN 200 (1″ .. 8″) in DIN and ANSI
  • Pressure rating: DIN PN 16 or PN 25 / 40, ANSI Class 150 or Class 300
  • Body material: ASTM A105, A216 WCB or stainless steel ASTM A479 F316, material no. 1.4404, ASTM A351 CF8M, material no. 14401
  • Ball and stem: AISI 316 / AISI 304 or material no. 1.4401
  • Stem seal: Viton, seat PTFE

The MVA 3/2-way compact ball valve design model DUKE is used in a continuous process to change over the flow to a standby unit without interrupting the process. The ball valves are coupled together with a fixed rod or to offset any misalignment with universal joints. A lever that can be attached anywhere on the rod permits manual operation of the valves. From DN 150 (6″) on, a hand gear is attached instead of a lever.


  • Tubular exchanger
  • Double-pipe exchanger
  • Plate heat exchanger
  • Double filter
  • Distributing / mixing liquids or gases

Here you see the simulated use of our DUKE