Conventional Gate,Globe,Check Valve Conventional ggc valves are usually widely used in normal working conditions in many industries, also are main produts of poro. We can offer wide range of sizes（up to 48”）, ratings(up to 1500lb), and materials in different design standards. They are os&y, bb for gate&globe valve, and bonnet covered for sck,pck,tck valve, dual plate wafer check valve. They are also can be divided as forged steel valve and cast steel valve according to their materials’ difference. It can be rf, sw, npt, bw end for forged steel valve, and rf, bw end for cast steel valve.