Overview of pneumatic manual discharge valve
The pneumatic manual drain valve is mainly used for the bottom discharge of reactors, storage tanks and other vessels. It is welded to the bottom of storage tanks and other vessels with the help of the flange at the bottom of the valve, so as to eliminate the medium residues that often exist at the bottom of the vessels. According to the actual situation, the bottom result is designed as flat bottom, the valve body is V-shaped, and two working modes of valve clack are provided. The inner cavity of the valve body is equipped with a flushing and corrosion resistant sealing ring. At the moment of opening the valve, it can protect the valve body from the erosion and corrosion of the medium, and conduct special treatment on the sealing ring, so as to achieve the surface hardness of HRC56~62, with high wear resistance and corrosion resistance. The hard alloy shall be stacked on the sealing surface of the valve clack as required, and the sealing surface shall be sealed with wire to ensure the reliability of the sealing and prevent scarring. At the same time, adopt the design of short stroke valve disc. It is widely used in chemical, petroleum, metallurgy, pharmacy, pesticide, dye, food processing and other industries.
standard specification
Pneumatic belt manual discharge valve is mainly used at the bottom of tanks, reactors and other vessels. The valve is connected to the equipment through flange or butt welding and located at the bottom to eliminate the residual process medium in the vessel outlet. According to the actual situation, it can be divided into three types of structure: up expansion type, down expansion type and plunger type; Upward spread type is used for reactor discharge of agitators (except frame anchor type); For the down spread type, the plunger type is used for the reactor discharge of the frame anchored agitator. The sealing surface is made of erosion resistant and corrosion resistant materials, and special treatment is carried out to make the surface hardness reach HRC48~52. It has the functions of high wear resistance and corrosion resistance, ensuring the sealing reliability of the valve. It is widely used in chemical, petroleum, metallurgy, pharmaceutical, dye, food processing and other industries.
