Industry News
Home /

News

/

Industry News

/How to choose right Positive displacement pumps?
How to choose right Positive displacement pumps? 2019-03-20

What is Positive Displacement Pump?


It is a pump that reciprocates or rotates in a pump body by means of a piston, a plunger, a diaphragm, a gear or a van, etc. to periodically change the volume of a plurality of working chambers in the pump body, and alternately suck and discharge the liquid.


Types of Positive Displacement Pump


Positive Displacement Pump

How pumps works?


Positive Displacement Pump


How to choose a right pump for your applications?


For high density, viscosity or temperature liquid products, many end users prefer to screw pump, gear pump, diaphragm pump or piston pump, they usually face below problems


SCREW PUMP



Positive Displacement Pump


  • The pump body is too long and site requirement is high
  • Sensitive to fluid containing solid particles
  • Heavy damage might be caused due to dry run
  • Sensitive to the change of viscosity
  • The fluid may leak out of the pump body and cause pollution to the environment and the pump body
  • Frequent to change wearing parts
  • Maintenance is inconvenient


GEAR PUMP



Positive Displacement Pump



  • The inter-tooth groove of the end cap and gear constitutes a number of fixed sealing working chambers, which can only be used as a dosing pump
  • Unbalanced radial force, large flow artery, high noise
  • Low efficiency, poor interchangeability of parts, difficult to repair after wear


DIAPHRAGM PUMP



Positive Displacement Pump



  • The diaphragm is easy to get damaged and the frequency of maintenance is high
  • Not suitable for pumping fluid
  • containing solid particles with large diameter
  • Not suitable for handling high viscosity or high concentration media
  • The fluid may leak out of the pump body and cause pollution to the environment and the pump body
  • Too many pipe elbows and valves may make the delivery pressure to be insufficient


PISTON PUMP



Positive Displacement Pump



  • Big size, high power consumption and high cost
  • Sensitive to solid particles
  • Heavy damage might be caused due to dry run
  • The fluid may leak out of the pump body and cause pollution to the environment and the pump body
  • Maintenance is inconvenient


For a pump with low maintenance, failure rate, easy maintenance and long-life, usually BONVE rotary lobe pump will be your best choice.

Positive Displacement Pump


Strength of BONVE pump


  • Wide pressure and flow range
  • High viscosity liquid transfer, up to 1.5 million cps.
  • Gap is kept between the rotors to allow no friction, thus to ensure long service life.
  • Simple installation and disassembling easy maintenance and cleaning, strong resistance to wearing.
  • High efficiency and energy- saving, stable transmission, low failure rate, good sealing and low noise.
  • Suitable temperature:1~250c degree.
Yuyao Huatai Bonve Pumps Co.,Ltd

When you choose a Bonve pump, you not only get the pump, but you also get the advantage of Bonve's engineering expertise and years of application knowledge in your industry.

Copyright © 2020 Yuyao Huatai Bonve Pumps Co.,Ltd. All Rights Reserved. Powered by dyyseo.com

Home

Products

About us

Contact us