• The filter pipe explosion-proof valve is installed between the large cyclone/spray room and the filter, and is designed to prevent the shock wave and flame generated by the explosion from returning to the production workshop along the pipeline where it is installed, causing damage to the workshop equipment and personnel. It can effectively reduce the known maximum explosion pressure in the protective shell and act as an isolation valve during the explosion. The explosion-proof isolation valve can block the destructive effects caused by the pressure wave and flame spreading from the downstream of the dust explosion along the installation pipeline to the upstream.

• In normal operating mode, it opens under the impact of the dust-laden airflow flowing in the opposite direction of the explosion pressure wave. Applicable to ST1/ST2 organic dust and metal dust. Prevent the danger of explosion spreading along the filter, cyclone separator and other equipment. Under normal operation, the damper is kept open by the self-balancing device. When an explosion occurs, the damper automatically closes due to the airflow and remains closed under the action of the self-locking device. Therefore, it prevents the explosion from spreading to other parts of the equipment, especially preventing sparks from being led from the cyclone pipeline to the back stage to cause a larger explosion, bringing the greatest safety guarantee to users.

• Applicable wind speed: 15-30m/s;

• Pressure loss: about 200pa;

• Maximum explosion pressure: 2.0barg@20℃;

• Applicable dust: St1 and St2 dust with Kst less than or equal to 300barg*m/s;

• Installation method: horizontal installation, flange connection;

• Self-locking device, adjustment by balance hammer, small pressure loss

• Prevent floating dust from returning along the pipeline when the dust collector stops;