Flanged Ball Valve - 5801F Series

5801F Series Fire Safe Flanged Valves


The 5801F Series full port valve is API 607 certified fire safe flange ball valve. It has specially designed seats that provide tight shutoff and low torque. Standard features include dependable, fully contained double body seals, anti-static devices and blow-out proof stems. The full port valves have a full diameter, straight, construction-free flow path, giving about the same flow capacity as a similar size piece of pipe. Full port valves are used when flow capacity / pressure drop is the most important consideration, or when frequent cleaning with a flush or pig is required.


Investment cast 2-piece bolted body construction Blow-out proof stem Reinforced PTFE seats Adjustable, live-loaded graphite packing API 598 inspection and testing API 607 5th Edition fire tested Locking lever operator


Data Sheet
5801F Series Data Sheet
Dimensional drawing
5801F, Class 150 RF Flg. Ends, 1/2" - 8", Lever Oper.
5000F, Class 150 RF Flg. Ends, 1/2" - 8", UT Act. Sized for RPTFE seats
5801F, Class 150 RF Flg Ends, 1/2" - 8", ER Act. Sized for RPTFE seats
I & M
5801F Series I & M
Marwin Condensed Catalog
Other documentation
Steam Service SP Ratings
ASME Pressure Ratings Chart

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