303 MK5

303 MK5 is a safety shut-off valve that may be used as a protection system for gas supplies and networks

Features and Benefits:

  • To be installed on the inlet pressure side with an external measuring line leading to the outlet pressure side in order to ensure automatic closing of the station in the event of overpressure
  • Operates with high accuracy and reliability
  • Push button for pressure compensating valve
  • Re-engage by hand
  • Low-pressure loss; fully-automatic operation; no external power supply required
  • Suitable for natural, non-aggressive and manufactured gases; nitrogen, carbon dioxide and propane; and other gases upon enquiry
  • CE registration according to PED
  • Max. inlet pressure pmax: up to 7 bar
  • Setting range
    • Series 303LP: 0.037 to 0.48 bar
    • Series 303MP: 0.42 to 4.5 bar
  • Pipe sizes: DN 250, DN 300
  • Temperature range: -20 to 60 °C

All mechanical components of this device are without potential ignition sources and/ or hot faces. They are not subject to ATEX 95 (94/9/EC). All electronic accessories, on the other hand, meet ATEX requirements.