Shut off butterfly valves, reduced bore

Solution for

  • District heating pipelines
  • District cooling pipelines


  • from DN900 to DN1400
  • in pressure class PN25 (body)
  • in trim classes Δp = 16 or 25 bar
  • tightness class A or B (EN12266-1)
  • for a temperature range of -40ºC to 200ºC (250ºC)
  • with welded connections (recommended)
  • available also with flanged conncetions
  • manufactured according to EN (DIN) or GOST
  • with manual gear, electric or hydraulic actuator


  • fully welded construction
  • manufactured utilizing high quality materials and commponents
  • light weight, space saving design
  • easy-to-insulate
  • easy-to-install and operate
  • maintenance-free
  • metal seated
  • stainless steel disc + special alloy, chrome plated seat
  • triple offset geometry
  • total tightness – bi-directional tightness
  • non-jamming floating seat
  • seat designed to adjust to large temp difference
  • high kV-value
  • designed according to EN488