Pump Protection Valves – Automatic Recirculation Valves – SUL

1 stage Pressure Reduction

The series SUL offers an effective, low cost protection for pumps in the chemical- and petrochemical Industries.


  • ΔP bypass < 40 bar
  • Pressure reduction one stage
  • Flange
  • DIN und ASTM materials
  • DN 25 bis 250
  • PN 16 bis 64
  • Niro interior parts (min. 13 % chrome)
  • Exchangeable interior parts
  • Low loss of pressure in mainstream
  • High Kv in the Bypass
  • Non-return function possible

If you would like additional information, please click on any literature link below or Contact Us directly so that we may provide you with detailed specifications.




Series SUL - ARV Brochure
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