APPLICATION STORIES
     
 
APPLICATION:  DIAPHRAGM LIFE 4
 
  Benjamin Moore & Company, a nationally recognized leader in the manufacture of quality paints, uses air operated diaphragm pumps in both process and transfer applications. In one particular application they use several of these pumps in their tank storage area to transfer Texanol to their in-plant production facilities. This application is ideally suited for air operated diaphragm pumps in part due to the on/off demand for product.  
     
  PROBLEM:  
  The pumps are located at the bottom of the Texanol storage tanks. The height of the tanks, approximately 20 feet, plus the high specific gravity of the Texanol combine to produce an inlet pressure close to a 16 PSI spike when the pump’s valve balls close. Air operated diaphragm pumps are generally restricted to a maximum of 10 to 15 PSI inlet pressure before pump diaphragm life is severely reduced. Due to the high inlet pressure present, Benjamin Moore was averaging a 3 week life on the PTFE diaphragms in their Texanol transfer pumps. Every time a diaphragm failed, a significant amount of product was lost in addition to the expense and time involved for repair.  
     
  SOLUTION:  
  A BLACOH hydro-pneumatic inlet stabilizer was installed on the inlet side of the air operated diaphragm pump. The BLACOH stabilizer acts much like a shock absorber to cushion the effects of high acceleration head spikes which occur when the pump’s inlet valves close. When the pressure spikes are cushioned, stress is removed from the pump’s diaphragms and the result is increased diaphragm life.  
     
  RESULT:  
  Instead of the previous 3 week life, the pump has now operated over 6 months without a diaphragm failure. There have been no spills to clean up, repair costs have been minimized and downtime due to interruption of the Texanol transfer has been eliminated. A BLACOH inlet stabilizer has now been installed at the inlet on two other tank applications.  
     
     
     
Uncommon Solutions To Common Pump System Problems
  Industry Served:
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PAINT & COATING
 
   
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Pump Inlet Stabilizers
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