Is the discharge valve of Roots blower normally open or closed?

Is the discharge valve of Roots blower normally open or closed?

Off. For normal startup of Roots blower, start the blower under full load, and then slowly close the exhaust valve. When closing the exhaust valve, observe the air pressure gauge at the fan outlet. The value of the barometer shall not exceed the rated pressure of the fan, or it will be overpressure.

When the high-pressure roots blower is shut down, slowly open the exhaust valve to fully open. Press the stop button on the electric cabinet.

The discharge valve of Roots blower should always be closed, otherwise, the normal operation and efficiency of the blower will be affected, the service life of the equipment will be reduced, and even the environment will be affected.

When using Roots blower, if it is necessary to discharge gas, it is necessary to first stop the blower, then open the discharge valve, and then close the discharge valve after the gas is completely discharged, and restart the blower. This can avoid the emission of gas to the fan rotor during operation, and can also reduce noise and environmental pollution.

Therefore, the discharge valve of Roots blower should always be closed. It should only be opened when it is necessary to discharge gas, and it should be timely closed after the opening operation. At the same time, it is also necessary to clean and maintain the discharge valve regularly to ensure its normal use effect and service life.