Lubricated Plug Valve

A pressure balance type oil sealed plug valve, the plug is adjusted by the bolt in the lid of the valve, and the sealant inject the valve from the end of the stem; in order to prevent pressure from pushing the plug into the valve body, the end of the plug has a balance hole, and the balance hole in the small end of the valve has no medium only to the end of the small head. When entering the cavity at the two ends of the valve plug, the sealing of the valve is sealed by the sealant between the valve plug and the valve body.

A pressure balance type flip plug valve, consisting of a valve body, a cock, a stem and a filler, the cock is a conical valve plug over the upper end of the upper end, the cock is located in the inner cavity of the valve body, the stem driving cock rotates, the sealing surface of the cock is a cone, the stem and the cock are connected through the cross connector, and a cylinder between the stem and the cock is equipped with a cylinder. Spring or butterfly spring, the lower end of the valve body is fixed with a valve cover, the valve cover has a adjusting shaft, the lower end of the adjusting shaft is worn out of the valve cover and the top top cock, the lower end of the cock has a first check valve, the seal face of the cock is equipped with a seal oil tank, the valve body has a tank, the oil tank of the valve body is connected with the seal oil tank of the cock. The valve body is provided with an oil injection valve that is connected with the oil storage tank. The pressure balance type flip plug valve can be used under high temperature, high pressure and harsh conditions. It has the advantages of reliable sealing, small operating torque and long service life.

The GAIRUI Lubricated Inverted Pressure Balance Plug Valves is a valve that opens and closes the closing part (the stopper) rotating around the center line of the valve body. Plug valves are mainly used for cutting, distributing and changing the direction of media flow in pipelines. Plug valves are the earliest valves used in history. Because of its simple structure, fast opening and closing (the 1/4 circles of the plug can complete the opening and closing action), the operation is convenient, and the fluid resistance is small, so far it is widely used. At present, it is mainly used for low pressure, small caliber and medium temperature. The stopper and plug body of the stopcock is a good conical body.