Why Would You Choose Dry Vane Pump?

By August 19, 2019
Dry Vane Vacuum Pump

If you are dealing with some low viscosity liquids such as LP gas, solvents, fuels or oils, gasoline, ammonia, and refrigerants then you need to install a dry vane pump. Dry vane pumps can handle low viscosity liquids and such pump does not have any internal metal to metal contact. Apart from that, dry vane pumps have the self condensate capacity for wear, and they can perform well on non-lubricating liquids. You can find various types of vane pumps in the market including the sliding vane pumps, flexible vane pumps, swinging vane pumps, and rolling vane. They are easy to maintain, and they have a good suction capacity. Apart from that, dry vane pumps can handle fluids of different temperature. You can use the pressure from 15 BAR to 200 PSI in the dry vane pumps that is higher than hydraulic vane pumps.

What Are The Working Principles Of Dry Vane Pumps?

There are many advantages of dry vane pumps. They can handle large solid liquids and they are more flexible than other pumps. Even you can also use the dry vane pumps for small solids and create a good vacuum system.

  • There is an electrical rotor attached to the cycloidal cam and this rotor is installed close to the wall of the chamber. The rotor is sealed into the cam with two slide plates and you can find vanes or blades inside the slots of the pump. Once you switch on the rotor, the fluids enter into the pump and form hydraulic pressure. Such pressure then pushes the vanes toward the walls of the housing. You need to check the sealing of the rotor, vanes, and cam and slide plates before you start the pump because tight sealing of such parts will ensure good suction.
  • The cam force fluids then enter through the holes, and you can find some pockets in the vanes, rotor, cam and slide plates of these pumps. Once you start the dry vane pump, the fluid starts entering into the cam through these pockets.
  • After you switch on the rotor, the vanes sweep the fluid to the opposite side. Then the fluid will squeeze through the discharge holes of the cam. Afterward, the fluids get discharged from the ports of the pump.

What Are The Advantages Of Dry Vane Pumps?

  • Dry vane pumps can handle thin liquids with high pressure. Such pumps can compensate for wear through vanes.
  • Dry vane pumps are ideal for solvents and LPG. You can use dry vane pumps for a short period, and you can find only one seal or stuffing box in this pump.
  • They have better vacuum capacity than other pumps. The filtration capacities of dry vane pumps are better than other pumps.
  • But you cannot use dry vane pumps under high viscosity pressure because they are designed for low viscosity pressures only.

There are many industries that use dry vane pumps. Aerosol, aviation, auto industry, LPG, alcohols, refrigeration, solvents, and aqueous solutions are some of the industries that use dry vane pumps. So, if you have any similar industry then you can buy some dry vane pumps for your low pressure solvents.

As stated earlier that you do not need to invest any additional amount for maintaining such pumps. But dry vane pumps are little expensive and most of the manufacturers provide a limited warranty on their pumps. So, you can search such pumps online and check their viscosity pressure. Then choose a perfect one according to your requirements. If you face any problems, then you can discuss your requirements with the technical team of the manufacturers. They will assist you to choose the best quality dry vane pump at affordable prices.