Durable Forged Brass Check Valve. 1.Material:brass body/stem,zinc/plastic handle. 2.Medium:water,oil,gas. 3.Certification:CE. Durable Forged Brass Check Valve.1.Model No. : LDM-CV042.Material: Body Brass,Hpb57-3,Hpb59-3,CW614n,CW617n, CuZn39pb3,,CuZn40pb2,CW3770,DZR. Stem Brass Stem, Brass as above. Sealing PTFE/TEFLON,VITON,O-RINGS. Handle Iron handle,Stainless steel handle, Aluminium handle, ...