Roots blower how to open and close?

　　How to open the roots blower?

　　(1) the first check the fan open environment and the condition of the instrument electrical equipment in good condition (including three-phase electric is normal, no shortage of phase).

　　(2) check the fan of lubricating oil, half is in the level of the mirror.

　　(3) to open the fan exhaust valve and outlet valve.

　　(4) open the fan.

　　(5) after the fan running slowly close the vent valve, the fan pressure gauge rose to 0.04-0.04 Mpa.

　　Roots blower how close?

　　(1) when to stop the aeration, slowly open the vent valve in the first place.

　　(2) close the outlet valve.

　　(3) shut off the power.

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