H type swivel fittings is designed to apply to the cooling aspects of the design of the series, it has small size, light weight, the advantages of small friction torque force. Uses a balanced seal, friction material according to the media environment group, choose a variety of impregnated graphite, bronze, tungsten carbide, silicon nitride, such as different groups of right, enough to resist rust, scale, impact debris and other impurities on the sealing surface Our seal is done on CNC machine tools and special grinding machine, mirror-like surface, the sealing more reliable. High pressure female swivel fitting housing made of stainless steel or carbon steel materials processing high standard, multi-channel collision pressing device, avoid high pressure inflation. Hollow shaft after heat treatment, to prevent high pressure deformation and solve the problem of high pressure seal ineffective. For media including chemicals, hydraulic oils and the like. Require a high-pressure state machinery hydraulic machines, punching equipment, and other high-speed rotating equipment: For industry.