タイトルまたは説明

Full port or conventional port Life type check valves Ball type check valves Swing type check valves According to requirement equip inside spring Bolted bonnet with spiral-wound gasket ,threaded and seal welded bonnet or threaded and seal welded bonnet or threaded and pressure seal bonnet Socket weld ends to ASME B*6.*1 Screwed weld ends to ASME B *6.*1 Screwed ends(NPT) to ANSI/ASME B 1.*0.1 Main materials A**5, LF2 ,F5 ,F*1 ,F*2 ,**4(L) ,**6(L) ,F**7 ,F**1 ,F*1 ,Monel ,*0Alloy . Disc can change for soft seal disc and ball disc