ball valve
Last Post 16 Nov 2012 10:47 AM by pfeinstein. 2 Replies.
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New Member
New Member

30 Oct 2012 10:38 PM
    what does 80 cf8 mean on a ball valve?
    Basic Member
    Basic Member

    02 Nov 2012 11:12 AM
    Do you know who manufactured the valve?

    Without seeing the valve it is hard to know. It could be a date code. I could me some sort of specification or part number code.

    Where is this information on the valve?

    How is it imprinted on the valve?

    Niel Leon

    Update - I did some searching.

    I am not 100% sure but cf8 appears to be a Chinese standard for Stainless steel either 304 or 316.

    see -

    The 80 may indicate the DN size of DN80, but that is only a guess resulting from the website above.

    New Member
    New Member

    16 Nov 2012 10:47 AM
    The most likely meaning is:

    80 = DN80, i.e., a port-hole diameter of 80mm (i.e., a 3" valve)

    CF8: this is an abbreviation of ASTM A351 CF8, which is a cast stainless steel specification.


    My interests include duplex valves from The Alloy Valve Stockist, Barcelona, Spain at