PrimeDisc X | DSF

Extended Disc Check Valve

DN 15-100

Design Features

  • Large flange connection faces on both sides
  • Long lifetime due to guided valve plate by body ribs
  • Centrering through body-outside-diameter
  • Flange connection acc. to DIN 2512 und DIN 2513/V13 possible
  • Pmax. 40 bar in standard, versions available up to 160 bar
  • Mounting with seals between flanges acc. to DIN EN 1092-1, PN 10-160 und ASME B16.5 CL. 150-600lbs
  • Operational limits acc. to DIN EN 1092-1 and AD 2000 notice W10
  • Tightness acc. to DIN EN 12266-1 and Leakage Rate A (Sealing E, P, V)
  • Body length acc. to DIN EN 558-2, row 52
  • Identification acc. to DIN EN 19 
  • In compliance with PED 2014/68/EU

Special versions


  • Springs in Hastelloy C4 (up to 400°C) and Nimonic (up to 500°C)
  • Special springs for different opening pressures
  • available up to pmax. 160 bar