ANSI 150LB-300LB Flange type metal seat-- Swing check valve Parameter of the products Operating Pressure 150LB/300LB Test Pressure Body 1.5 times Seal 1.1 times Working temperature -29-425℃ Application for Water,oil &gas Valve standard 1 Comply with API 6D ,ANSI/ASME B16.34 2 ...
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