Bronze gear Pumps

Product Code : POS - 2

Positive displacement pumps.

Pump application:                    
These positive displacement low inertia pumps are excellent at pumping fluids at medium to high pressures.   These pumps can be used to pump water and other non abrasive fluids.  Very useful for pressure boosting, liquid transfer, factory process pumping and lubrication duties.                    
Performance data:                    
Performance curves are based on a kinematic viscosity value of 1mm2/s and a density of 1000 Kg/m3 at 20ºC.                              
  - Flow rates up to 4m3/h.          
  - Heads up to 140m.          
  - Fluids must be clean and free from suspended abrasive particles.          
  - Maximum fluid temperature: +60ºC.          
  - Maximum ambient temperature: +60ºC.          
  - Maximum allowable pressure in casing: 6 Bar.          
  - Rotational speed: 700rpm recommended maximum.          
  - Comes in three different configurations and 3 different sizes.          
B Series - standard unit          
  - Castings and gears made from L.G.2 bronze.         
  - Plain bronze bearings.         
  - Graphite gland packing.         
  - 316 Stainless steel shafts.         
  - Stainless steel cap screws.         
  - Available in 3 sizes 15mm, 20mm and 25mm.                   
B/RV Series - as per standard unit plus       
  - Full inbuilt bypass valve - interchangeable for either direction      
  - Bypass valve has stainless steel seat and tension spring.      
  - Bypass valve has a Viton O ring.      
  - Available in 3 sizes 15mm, 20mm and 25mm.      

BB Series - as per standard unit plus        
  - Complete with a Viton carbon - ceramic mechanical seal.       
  - Ball race on the drive end of drive shaft and a replaceable glacier bearing on  the opposite end.       
  - Replaceable glacier bearings on idler shaft.       
  - Available in 3 sizes 15mm, 20mm and 25mm.                   

Securely bolt the pump unit in location. The gear pump can be installed in any orientation.  However ensure that the pump is running in the right direction.   Gear pumps can run in either direction by operating the power unit in reverse or alternatively by changing the delivery and suction pipes to opposite sides of the pump.  If closed heads are to be encountered than a pressure relief or bypass valve must be installed and set to the required pressure.    If full bypass is required ensure that the vee belt or chain drives are correctly aligned with the correct tension.    Always prime the pump with the fluid to be pumped and start with a fully open discharge before throttling to pressure requirements.

Caution: avoid running the  pump dry as this will create rapid wear.                    

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