Fisher CS400

The Fisher CS400 Series direct-operated, spring-loaded regulators have been engineered to fit a multitude of pressure-reducing applications including commercial and industrial installations.

This flexibility is provided by the numerous body sizes and end connections, outlet pressure settings, orifice sizes, as well as the option for internal or external pressure registration.


  • Wide variety of body sizes and end connections
  • Field convertible from internal sensing to external sensing for wide-open monitor construction
  • Available in gray cast iron, ductile iron and steel body materials
  • Only standard tools required for pressure adjustment and orifice removal
  • Easy to maintain
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