The opening and closing components of J41H, J41Y, and J41W national standard stainless steel globe valves are cylindrical valve discs with a flat or conical sealing surface. The valve disc moves linearly along the centerline of the fluid. The national standard globe valve is only suitable for fully open and fully closed, and is generally not used to regulate flow. When customized, it is allowed to be adjusted and throttled. 1. Simple structure, easy to manufacture and maintain; 2. Small work schedule and short opening and closing time; 3. Good sealing performance, low friction between sealing surfaces, and long service life. Design Specification: GB/T 12235 Structural length: GB/T 12221 Flange connection: JB/T 79 Testing and Inspection: JB/T 9002 Product identification: GB/T 12220 Supply Specification: JB/T 7928