Cast steel safety valve,DN15-DN80. Factory supply. High pressure protect. Auto open and close. Fast response to over pressure situation.Spec:Port Size: DN15-DN80Working Presure: PN1.0-PN32Working Temp: -20~200CMaterial: see below material vs model/parts table: NO.PartsA27H materialA27W-P materialA27W-R material1Valve bodyHT350Cast steel 321Cast steel 3162Valve seat35Cast steel 321Cast steel ...
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