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Marshall Excelsior · Fuel System
ME990-4F-650
In stock · ships from Knoxville
The Marshall Excelsior ME990-4F-650 is a 4-inch single flange internal valve typically installed on the inlet or outlet connections of cargo tank trucks and large stationary storage tanks.
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Designed for liquid or vapor withdrawal and fill on transport tanks. Must be matched with the correct excess flow spring rating for the tank's intended flow. Verify material compatibility for gases other than propane or NH3.
Part data verified against 3 catalog sources
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It acts as a primary shutoff and incorporates an excess flow valve that automatically closes if the flow rate exceeds 650 gallons per minute (GPM), preventing a major spill in the event of a downstream line break or hose failure. The valve is commonly used in liquid or vapor service for propane (LPG) and anhydrous ammonia (NH3), though it can handle other compressed gases. Replacement is necessary when the excess flow mechanism fails, the valve no longer holds a tight seal, or after accident damage to the tank piping.
Part Number: ME990-4F-650
EXCELERATOR 4 SINGLE FLANGE INTERNAL VALVE 650 GPM
Unit: ea
Dealer: Post Onsite
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