Fisher™ 4" Flanged Internal Valves
Typically used on the inlets and outlets of transport truck tanks and large stationary storage tanks. They can also be installed in-line. Designed for propane, butane or NH3 at ambient temperatures, the valves can be used on other compressed gases,
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