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Sep 19, 2012 10:13 AM

Blackmer has designed its TXV Series sliding vane pumps  to meet the challenges inherent in the production and handling of asphalt, a  commodity that can feature high temperatures and varying viscosities.

  The firm has designed its TXV pumps to provide  high-volume, low-speed transfer of asphalt. The key to the TXV’s performance in  these applications is the pump’s sliding vane rotor design that provides  sustained, high-level performance over a wide viscosity range. In addition, the  pump’s ability to offer slow operating speeds and non-pulsating flow minimizes  shear and product agitation. The pumps are also self-priming and can run dry  for short periods of time for priming purposes.

  TXV pumps are available in 2.5- and 3-inch port sizes.  The standard cast-iron construction includes a special open-rotor design that  offers easy flushing, bronze vanes, FKM elastomers, PTFE lip seals,  high-temperature grease-lubricated ball bearings isolated from the pumpage, and  high-temperature gasket-materials. TXV pumps deliver more fluid per revolution  than comparably ported gear pumps while their slower operating speeds result in  longer service life and reduced maintenance requirements. The TXV’s internal  relief valve also protects the pump from pressure buildup.

  For more information, go to www.blackmer.com. Blackmer is an operating  company within Pump Solutions Group (PSG). For more details on PSG, access www.psgdover.com.