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Rotary Gear Pumps And Rotary Vane Pump - How to Choose?

 

Rotary gear pump is the most common displacement pump ideal for transferring high viscosity fluids. Few of the industries where rotary gear pumps are used include refineries, rolling mills, steel plants, oil mills, pharmaceutical plants, ceramic industry, paint industry and food industry. Due to its good suction quality and sturdy construction, it is a very popular choice. 

The industrial rotary gear pump transfers fluids with the action of rotating cogs or gears.  The rotation develops a seal with the casing thus creating a suction at the inlet. The drawn fluid gets enclosed in these cavities and gets transferred to discharge. 

 

Rotary gear pumps with motors are compact and with limited moving parts. They are available in two design options - external gear pumps and internal gear pumps. The external gear pumps have more rigid shaft support thus can sustain higher pressure and flow rate, while internal gear pumps are better for highly viscous fluids due to its better suction capabilities. 

 

Limitations of rotary gear pumps:

  • Should not be run dry for long periods thus need lubrication with pumped fluids
  • Susceptible to wear and tear 
  • Not suitable for abrasive fluids
  • Sensitive to temperature
  • Running on high speed than recommended may cause damage 

 

At IndusUno, we offer various rotary gear pumps from manufacturers like Dayton, Chemsteel and more. We not only give the best rotary gear pump price, but also great customer support to help make the purchase process smooth.

 

Rotary vane pump is a positive displacement pump known for dry priming, good suction and easy maintenance. These pumps can handle a wide variety of clean fluids while generating high differential pressure. Also they operate in either direction with a low noise and vibration level. 

Rotary vane vacuum pump helps remove the air molecules from the pump area by creating a suction. The oil rotary vacuum pump is used in chemical and pharmaceutical processes, food processing, packaging industry, woodwork industry etc. The dry running rotary vane is popular for printing, packaging machines, aeration and so on. The various pumps available are rotary vane water pump, rotary vane air pump and rotary vane fuel pumps.

 

While it has many advantages, what lacks in these are that they cannot handle high pressure, abrasive and viscous fluids. 

 

Similarities between rotary gear pumps and rotary vane pumps:

  • Both are positive displacement pumps with some self-priming capacity
  • Continuous flow along with pulsation of pressure and flow
  • Size and rotation of working part determines the flow rate
  • Size and speed depends on sealing of pump and not discharge pressure

 

Differences:

  • Vane pumps is more complex than gear pumps
  • Gear pumps are reversed while vane pumps cant

 

IndusUno’s promise to deliver the best

 

No matter which pump you are looking for, IndusUno is the place to buy from. Our vast catalog, impeccable service, competitive prices, online tracking of orders and options for mode of payment cannot be matched by any other supplier. When looking for bulk orders or deals all you need is to just give us a call. A wonderful shopping experience is waiting for you!