Threaded Internal Valves For Bobtail Delivery Trucks, Transports and Stationary Storage Tanks A3212 Series


Designed primarily for use with LP-Gas and anhydrous ammonia for liquid withdrawal; vapor transfer or vapor equalization of bobtail delivery trucks, transports, stationary storage tanks, and in-line installations. The valve may be operated manually by cable or pneumatically.


  • May be installed in full and half couplings.
  • Nylon bearing supported operating shaft provides smooth, easy operation.
  • Simple operating lever facilitates easy adaptation of all cable controls.
  • Midway stem position allows for quicker pressure equalization.
  • All critical operating components are located in the valve body inside the container coupling for maximum protection against physical damage.
  • Built in excess flow valve.
  • Return spring returns the valve to the closed position when the handle is released.
  • Specify RegO® Internal Valves on your next new tank body or when your tank is rebuilt.
  • A3213PA pneumatic actuator provides a convenient means of opening and closing the valve from a remote location, using either air or nitrogen for both the A3212R & A3213A service valves.


Body Ductile Iron
Operating Lever Cadmium Plated Steel
Stem Stainless Steel
Springs Stainless Steel
Seat Disc Resilient Synthetic Rubber
Shaft Bearing Nylon