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Instrumentation >> Valves >> Relief Valves

RL4 SERIES

  • Handle for field maintenance
  • Externally adjustable pressure settings while valve is in operation
  • Seven different springs
  • Manual override option with positive stem retraction is available for the full working pressure range
  • Color coded springs and labels indicate spring cracking range

(For more information please refer to Parker RL4 Series Catalog


RH4 SERIES

  • Eight springs
  • Manual override option with positive stem retraction is available for pressures up to 1500 psi (103 bar)
  • Preset from factory and comes with standard springs

(For more information please refer to Parker RH4 Series Catalog

 


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