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Designed especially for liquid transfer of LP-Gas from consumer bulk storage containers when used with a Check-Lok® or equipped with an integral excess flow valve. May also be used for vapor LP-Gas service.

In NH3 applicator tanks they may be used as a vapor bleeder valve or as a liquid withdrawal valve when installed in a coupling with a dip pipe.

These liquid transfer valves are equipped with an integral excess flow valve for liquid transfer directly from the tank fitting, or without an integral excess flow for LP-Gas transfer through a Check-Lok®. When equipped with an integral excess flow valve (7550PX), the valve should be mounted in a forged steel 3000 lb. half coupling. When mounted in a 1 1/4" x 3/4" NPT reducing coupling, the 3/4" female thread in this coupling must be full length - equivalent to a forged steel 3000 lb. half coupling.

The excess flow valve will not function properly if these specifications are not met. Refer to the Warning Bulletin in the Excess Flow Valve Section of this catalog.
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Item #

Body Material

Inlet Connection

Outlet Connection

Locking Handle

Flow at 1 psig (Cv) Pressure Drop

Excess Flow Approximate Closing Flow

7550P N/A Brass N/A 3/4" F. NPT N/A 3/4" F. NPT N/A No N/A 13.3 gpm/propane N/A
A7550P N/A Cadmium Plated Ductile Iron N/A 3/4" F. NPT N/A 3/4" F. NPT N/A No N/A 13.3 gpm/propane N/A
7550PX N/A Brass N/A 3/4" F. NPT N/A 3/4" F. NPT N/A Yes N/A N/A 16.0 gpm/propane
A7550PX N/A Cadmium Plated Ductile Iron N/A 3/4" F. NPT N/A 3/4" F. NPT N/A Yes N/A N/A 16.0 gpm/propane
7551P N/A Brass N/A 3/4" F. NPT N/A 1/2" F. NPT N/A No N/A 8.9 gpm/propane N/A
A7551P N/A Cadmium Plated Ductile Iron N/A 3/4" F. NPT N/A 1/2" F. NPT N/A No N/A 8.9 gpm/propane N/A
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