Rotary Paddle Level Switch - MPL

Rotary Paddle Type Level Switch is used for upper limit detection for powder or bulk material in silo, hopper, etc.

The rotating paddle continuously rotates and outputs the detection signal when the paddle is buried in powder and its rotating torque exceeds certain value. For installation, wall side mounting or suspension mounting can be selected. In case of suspension mounting, expansion type or wire-rope type which the detecting position is adjustable.

Principle

The MPL series operating principle is simple. A unit is usually located through a bin wall at the top, middle or low level of a bin. During normal operation (no material present) a synchronous motor rotates the paddle at 1 RPM. When this paddle rotation is impeded by material, surrounding the paddle, motor will stall and cause the Micro-switch to change state. (indicating an alarm or control)

Applications

Suitable for powdery producing & processing industries such as plastic, chemical, medical, forage, cement and fertilizer powders.

Features

• Airtight sealing device, outdoor application is available.
• Unique sealing ring design, it can perform good dust protection to avoid the dust permeate into housing body along with the shaft.
• The torque force is adjustable.
• The performance of torsion is stable and reliable.
• If the rotary paddle bears an extra overload, the motor will be appeared slide to prevent the inside mechanism damaged.
• It is rationally designed, the inside mechanisms are easily tore down for checking, maintenance and replacement. It does not necessary to remove the complete set from the tank.
• very suitable for small tank and material of low density.