... : 1/2~2aa(DN15~DN50) Rating : 150~2500LB(PN16~PN420) Body Materials : A105N,LF2,F11,F22,F30 check valve gate valvecheck ... with API602, EN/ISO15761 and ANSI B16.34. All components are manufactured using CNC machine centers to ensure consistent high quality. Design ... :1/2~2”(DN15~DN50)Rating:150~2500LB(PN16~PN420)Body Materials:A105N,LF2,F11,F22,F304,F316End connection:NPT,SW ...