Fisher™ 3" Single Flanged Internal Valves

Designed to provide rapid equalization of tank pressure and downstream line pressure, providing a fast valve response time for quick valve opening. These are frequently used on bobtail and transport truck tanks for liquid gas delivery, but they may also be used on large stationary storage tanks and on in-line installations in liquid or vapor gas fi ll applications. Underwriters Laboratories (UL®)-listed types are designed for use with Propane, Butane, or Anhydrous Ammonia services. Non UL® listed types are available with a variety of trim types and body styles and are 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. Actuation of the valve can be achieved manually, by cable, or with a pneumatic actuator.