Rotary vane vacuum pump to prevent reverse method

if ordinary rotary-vane vacuum pump rotor inversion, vacuum pump oil and will return to the vacuum chamber, air pollution and damage caused by the existing vacuum degree. In practice, therefore, it is necessary to prevent the rotary-vane vacuum pump are reversed. How to prevent the rotary-vane vacuum pump inversion commonly? Understand it with screw vacuum pump manufacturers.

if rotary-vane vacuum pump are reversed, it usually appears in the stage of start and stop the water pump.

rotary-vane vacuum pump are usually driven by three-phase ac motor, so the first thing to pay attention to the connection of the power cord, to ensure the correct direction of rotation. At present, some pumps are equipped with reverse braking, in order to prevent the pump reverse rotation. Once the power cord connection is not correct, vacuum pump can't start.

when the pump stop, the exit of the atmospheric pressure will make the vacuum pump reversal. Therefore, it is necessary through a separate vacuum pump and the vacuum chamber, special valve to prevent reverse rotation in air and oil pump to enter into the vacuum chamber. The special valve is usually a electromagnetic relief valve, it is usually connected to the power of the motor, and installed in the inlet tube of vacuum pump. When the vacuum pump power or control switch is closed, the electromagnetic valve will open, through the atmosphere and pump suction pressure difference between closing the passage between the pump and the vacuum chamber, and will to the vacuum pump inlet air emissions. Vacuum pump starts, the electromagnetic valve closed, vacuum pump drain protection valve, valve plate by spring pressure on.

in addition, some of the rotary-vane vacuum pump are also will be installed at the inlet of the pump a air isolation valve to replace the electromagnetic relief valve, in order to realize the function of protection valve.

J&T INDUSTRY CO.,LTD. shows how effective market design can encourage participation, reduce gaming, and aggregate information, in order to improve liquidity, efficiency, and equity in markets.
J&T INDUSTRY CO.,LTD. is a water pump services company that creates pool cover drain pump water pump for winter cover pump.Our services have brought great value to customers. Welcome to visit us at J&T INDUSTRY.
water pump has its grasp on oversees market and has a very good repute. Our products are available at very competitive prices.
Loyalty programs provide an opportunity to learn the preferences of customers and design communication strategies that will resonate with water pump.