Cast Iron/Ductile Iron Automatic Air Valve Double Ball&Single Ball Type Material Body Cast iron/ductile iron Cover Cast iron/ductile iron Float ball NBR Spindle Stainless steel/brass Design Design is according to ISO Standard Flange drilled is according to DIN,BS,JIS,ANSI etc. Thread is according to BS,DIN,JIS,ANSI standard etc. Test Working Pressure PN10/PN16 Class 125/150 Shell Pressure PN15/PN24 300PSI Seat pressure PN11/PN17.6 200PSI
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