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Fisher™ Types C483-24 and C484-24 Jet Bleed Internal Valves
Types C483-24 and C484-24 Jet Bleed internal valves are frequently used on bobtail and transport truck tank applications, but they may also be used on large stationary storage tanks and on in-line installations.
The valves can be operated by cable or with air. Designed for use with Propane, Butane, or Anhydrous Ammonia, the valves can be used on other compressed gases, but the user should check with the factory to make sure the valves are suitable for the particular service.

CAD Drawings and Models: Click Here
Fisher™ Types C483-24 and C484-24 Jet Bleed Internal Valves


Body Size and End Connections
Inlet: 3-inch CL300 RF Modified Flange (4.62-inch / 117 mm diameter bore)
Outlet: 3-inch CL300 RF Flange
Maximum Allowable Inlet Pressure
400 psig / 27.6 bar WOG
Temperature Capabilities
-20 to 160°F / -29 to 71°C
Approximate Weights
Type C483-24: 32 Pounds / 15 kg
Type C484-24: 18 Pounds / 8 kg


  • Patented rapid equalization bleed area
  • Unique Serviceability Features
  • Excess Flow Closure
  • Back Check Feature
  • Spring loaded polytetrafluoroethylene (PTFE) stub shaft packing
  • PTFE wear pads Rulon® Bushings at critical wear points
  • Manual, Cable, or Air Open/Close valve actuators
  • Thermal Fusible links or plugs melt at 212 to 220°F / 100 to 104°C and allow valve closure in the event of a fire at the valve


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