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Pneumatic Valve Of Sigma Mixer | JCT Machinery

December 17, 2024
Working Principle of Pneumatic Valves

pneumatic valve

Pneumatic Actuators

The cylinder (pneumatic motor) is the core component of the pneumatic valve. There is a piston inside the cylinder. When air enters the cylinder, it pushes the piston to move, thereby driving the valve to open and close.
When the air pressure in the cylinder increases, the piston pushes the valve to close or open.
If the pneumatic system works properly, the valve will open and close automatically, and the operator can adjust the valve state by controlling the switch of the air source.

Valve Structre
The structure of pneumatic valve itself is usually a ball valve, butterfly valve or gate valve, etc., and the specific form depends on the discharge requirements.
These valves will be connected to the discharge port of sigma mixer, and the valve opening will be accurately adjusted through the control of pneumatic actuator to achieve smooth discharge of the material.
Air Source
The operation of pneumatic valve depends on compressed air, which usually comes from the air pressure system. Compressed air is sent into the pneumatic actuator through the air pipe to push the piston or other mechanism to open or close the valve.
The Role of Pneumatic Valves in Sigma Mixer
  • 1. Control the Discharge Flow

  • Pneumatic valves can accurately control the discharge flow of sigma mixer. By adjusting the opening of the valve, the material can be discharged at a suitable speed to avoid excessive material flowing out or blocking the pipeline in a short time.

  • 2. Ensure Sealing and Prevent Leakage

  • During the discharge process, pneumatic valves can provide good sealing to prevent leakage of mixed materials. Especially for high-viscosity or paste materials, sealing performance is particularly important, because when these materials are discharged under high pressure, if there is no good sealing, it will cause material waste or equipment pollution.

  • 3. Improve the Degree of Automation

  • The use of pneumatic valves can achieve automatic control, reduce the need for manual operation, and increase the degree of automation of the production process. Pneumatic valves can be integrated with the control system of sigma mixer, and automatic opening and closing can be achieved through the PLC controller to optimize the production process.

  • 4. Reduce the Labor Intensity of Operators

  • Through the automatic control of pneumatic valves, manual intervention can be reduced, thereby reducing the labor intensity of operators, especially when operating in high temperature, high viscosity or toxic environments. The automatic control system can reduce personnel contact and ensure safe operation.

  • 5. Prevent Material Blockage

  • For some materials with high viscosity or large particles, pneumatic valves can be precisely adjusted to avoid blockage caused by excessively fast or slow discharge of materials, ensuring smooth discharge.

  • 6. Quick Response

  • Pneumatic valves have the characteristics of quick response and can be opened or closed quickly to ensure the efficiency of discharge process. When the discharge state needs to be switched quickly, the pneumatic valve can respond quickly and adjust the discharge flow rate.

  • 7. Adapt to High Pressure and High Viscosity Environment

  • Sigma mixer are often used to process high viscosity materials. Pneumatic valves can adapt to high viscosity materials. Pneumatic valves can adapt to high viscosity, high temperature and high pressure working environments to ensure the normal operation and sealing effect of valves.


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