Carbide spool is used in pneumatic program-controlled globe valve
What is a pneumatic program-controlled globe valve, and what role does the carbide spool play? Pneumatic program-controlled globe valve is an executive component of industrial production process automation. It controls the opening and closing of the valve through the signal sent by the industrial controller or the adjustment signal source.
Pneumatic program-controlled globe valve can be widely used in automatic control and remote control system of flammable, explosive, toxic and other gas medium in the production process of gas separation industry, petrochemical, metallurgy, electric power, light textile and other industries. The working conditions are relatively harsh, so the requirements for the material of the parts are also high. The carbide material is notoriously wear-resistant, durable and corrosion-resistant, so the carbide spool is naturally the first choice.
What role does the carbide spool play here? When the actuator signal makes the compressed air enter the cylinder from the bottom channel of the cylinder through the connecting plate, push the piston to move up to the limit, and at the same time drive the valve stem and the carbide valve core to move vertically upward, so that the carbide valve core and the valve seat sealing surface are separated , the valve is fully opened; when the signal of the actuator is reversed and the compressed air enters the cylinder from the cylinder head channel through the connecting plate, the piston is pushed down, and at the same time, the valve stem and the carbide spool are moved vertically downward, making the hard alloy spool move vertically downward. The alloy valve core and the valve seat sealing surface are closed, and the valve is completely closed.
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