Product Overview 
 Structural principle of differential pressure valve oil seals, differential oil seal is a wedge gate valve flexible wedge gate valve in the existing structure developed on the basis, that the existing valve wedge gate valve seat in the chamber C position, each equipped with an automatic pressure lubrication oil seal body, this body the fuel tank filled with seal fat, can be moved along the surface of the piston within the cylinder and valve seat formed, when the valve is closed, the valve body cavity filled with dielectric pressure in the valve, the valve's downstream side, due to referral support is cut off, and in the cavity to form a pressure difference, pressure difference in this role, push the piston downward movement, thus reducing the fuel tank sealing resin, through seat into the seat sealing surface of the channel-shaped sealing film in order to achieve sealing. External to the body before and after the site, each equipped with a seal pressed into the body fat compensation, when the valve is required to compensate for leakage sealing resin exchange, simply rotate the gland, sealing the hole through the body fat can enter the valve seat seal surface and to achieve a seal. 


 Valve Manufacturing Co., Ltd. Linyi on the industry, free :400 -6999-972 National Recruitment agency vacancies in some cities