Check Valves

Manufacturer: ARI | KSB | etc.

Check Valves PN 16 - PN 40, metallic sealing with flanges and butt weld ends for mediums such as steam, gases and thermal oil, etc. in industry applications and chemical industrie from all leading German and European manufacturers.

  • Check Valves oil and grease-free: lubricated exclusively by mineral oil free lubricants approved by the German Federal Office for Materials Testing (Bundesanstalt für Materialforschung und -prüfung, BAM)
  • Other flange designs
  • High-temperature resistant paint (grey aluminium)
  • Low-temperature steel bolts for temperatures down to -30 °C (JS 1025 only) up to 0.75 x PN (max.)
  • Certification to customer specification
  • Straight-way or angle pattern with horizontal seat
  • Spring-loaded check disc
  • Flanges to DIN EN 1092-2 Type 21
  • Exterior coating: blue RAL 5002
  • The valves satisfy the safety requirements of Annex I of the European Pressure Equipment Directive 97/23/EC (PED) for fluids in Groups 1 and 2.
  • The valves do not have a potential internal source of ignition and can be used in potentially explosive atmospheres, Group II, category 2 (zones 1+21) and category 3 (zones 2+22) to ATEX 94/9/EC
  • Type-tested to the specifications of Germanischer Lloyd
Characteristic Value
  JL 1040 JS 1025
Nominal pressure PN 6/16 PN 16
Nominal size DN 15-300 DN 15-350
Max. permissible pressure 16 bar 16 bar
Max. permissible temperature 300 °C 350 °C


  • Powerstations 
  • Flue gas purification plant
  • Processing technology
  • Gas supply
  • Vapour facilities
  • Recycling facilities
  • Vacuum facilities
  • Hot water
  • Heating technology
  • District heating
  • Thermal oil applications
  • General plant manufacturing, etc.
Ask about this product