... ,hastelloy,ect size:DN25~DN250 swing check valve-titanium1.work pressure:PN2.5,PN10,PN16,ect2.flow way:Level through,Angle valves,Y ... type.3.linkage:flange,thread4.valve clack:ball, plane seal ... .Customized design is available, OEM or ODM is welcome. swing check valve-titanium