Flanged ball valves - 6801F Series

6801F Series Flanged Valve


The 6801F Series is a world class API 607 certified fire safe flanged ball valve available in full port construction. Specifically designed seats provide tight shutoff and low torque. Full port valves have a full diameter, straight, constriction-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
6801F Series Data Sheet
Dimensional drawing
6801F, Class 300 RF Flg. Ends, 1/2" - 8", Lever Oper.
6801F, Class 300 RF Flg. Ends, 1/2" - 6", UT Act. Sized for RPTFE seats
6801F, Class 300 RF Flg. Ends, 1/2" - 6", ER Act. Sized for RPTFE seats
I & M
6801F Series I & M
Marwin Condensed Catalog
Other documentation
Steam Service SP Ratings
ASME Pressure Ratings Chart

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