Main structural characteristics of J641H pneumatic flange straight-through GLOBE VALVE are: 1.exquisite selection, in line with domestic and foreign standards, with reasonable structure, and beautiful shape. 2, the disc and seat sealing surface adopt iron-based alloy or stellite cobalt-based hard alloy build up welding, with wear-resistance, high temperature resistance, corrosive resistance, good anti-abrasion performance, long service life. 3, after tempering and surface nitriding treatment, the stem has a good anti-corrosion and scratch resistance. 4, it can adopt a variety of pipe flange standards and flange sealing surface pattern, to meet the various project needs and user requirements. 5, full range of body materials, packing, gasket can be selected and matched reasonably according to the actual working conditions or the users