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Thumbnail Filmstrip of 65-660 | 3" NPT Square Head Plug Images

    65-660 | 3" NPT Square Head Plug
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    Purchase 65-660 | 3" NPT Square Head Plug

    PART #: 65-660
    65-660 | 3" NPT Square Head Plug

    Product Reviews

    $14.84






    Our NPT Malleable Black Iron fittings are made with care and attention to detail. Reduced parting lines and smoother edges result in better fluid flow. By using a low temperature galvanizing process the coating is more durable which means a longer lasting fitting. All Fittings are 100% Pressure Tested to 300# Class.

    • Material - ASTM A 197 - Cuppla Malleable Iron.
    • Pressure - Saturated steam: 150 PSI @ 350°F & Max pressure 300 PSI @ 150°F
    • Temperature range -20 - 350°F 


    &degF Class 150
    PSIG    		 Sizes 1/4" - 1"
    300#    		 Sizes 1-1/4" - 2"
    300#    		 Sizes 2-1/4" - 3"
    300#
    150 300 2000 1500 1000
    200 265 1785 1350 910
    150 225 1575 1200 825
    150 185 1360 1050 735
    200 150 1150 900 650
    * Permissible for service temperature up to 366 &degF, reflecting the temperature of saturated steam at 150psig.