... Durable,Anti-corrosion,long life-span 4.Leakage: Class VI Product characteristics1) Compact structure, small cubage, ... coal gas. SpecificationDN mmDN15-400mmPNANSI 150, 300,600,JIS10K,20k,30k,40kMaterial of parts Body WCB,CF8, ... percentageRange ability LeakageANSI Class VI, Bubble tightCertificationWorkshop and production equipmentsOfficeCompany mansion HB2510 Penumatic Control Ball Valve for Shut-off