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    wdjudd's Avatar
    wdjudd Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 24, 2009, 10:21 AM
    ∅ Use in P&ID Drawings
    I recently encountered a P&ID drawing that contained the following information at the bottom of a 1,000 Gal storage tank:
    1,000 gal, 6' ∅ x 5' HT

    What does the ∅ mean in this description?
    What is this information used to calculate the 1,000 gal?
    WallyHelps's Avatar
    WallyHelps Posts: 1,018, Reputation: 136
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    #2

    Aug 24, 2009, 04:27 PM

    I thought it meant diameter. But I went to school a long time ago!
    That size sounds about right.

    Hope this helps,
    WallyH
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