PRODUCTS .DSHC

ELECTRIC PUMPS FOR VACUUM WITH MINIMUM MAINTENANCE The only supply required is water. Characteristics Minimum space occupied Thanks to its monoblock design with the drive motor, to the replacement of the second stage by a simple Flapper-type expulsion valve, and the application of state-of-the-art axial seals. Its use is recommended when

  • Vacuums greater than 97% of absolute (30 mm Hg) are not required.
  • There is the possibility of suction of liquids or vapors in quantities that would affect any oil-bathed pump.
  • Whenever the required service is characterized by large volumetric displacement, continuous operation and the possibility of suction of mud or other undesirable elements that, with the system, are dragged to the outside by the supply water together with the air and vapors.
  • Applications
  • Cooking and/or concentrated at a low temperature of: must, jellies, sweets, syrups, etc
  • Central vacuum for medical clinics or laboratories
  • Thermomanufacturing of thermal plastics
  • Calibration of extruded thermoplastic tubes
  • Machines for the meat industry
  • Degassed and dehydrated for the impregnation of wood or other porous material
  • Rapid cooling (rapid evaporation of moisture in fruits, vegetables, achieving a rapid drop in temperature.)
  • Textile industry (treatment of different fibers, ironing)
  • Deodorizing (eliminating undesirable gases in chemical substances, food products, etc.)
  • Low temperature distillations (vacuum extraction of volatile fractions)
  • Evisceration (elimination of viscera in birds, fish, etc.)
  • Acceleration of filtering, reducing the pressure in the discharge of the filter (eg: rotary filters)
  • Hospital sterilization equipment
  • Suction for dentistry
  • Labeling machines
  • Various constructions in fiber cement
  • Priming of centrifugal pumps
  • Depression of groundwater in soil

Operating principle

  1. It shows the collector and plate of ports that are connected with their corresponding suction and expulsion ducts.
  2. Here the rotor mounted on its axis can be observed. Said axis is eccentric with respect to the outer cylinder. The volume of water schematized is that which is established in the body of the pump, when fluid-dynamic equilibrium is reached.
  3. In this diagram, the configuration of the water during the march can be observed, which is arranged according to a hydraulic ring centrifuged by the rotor and concentric with the cylinder. In this way, the water, when it moves away from the rotor core (correspondence with the suction port) sucks as if it were a piston. At the same time, during the approach to the core (correspondence with the discharge port), the aforementioned air and vapors are expelled, plus the supply water that is independently taken by the pump of a line or tank to ensure its cooling, lubrication and hydraulic seal. The supply water is sucked by the pump and returned by the discharge, along with the gases and vapors.

Note: The particularity of this series of pumps is the aforementioned expulsion valve (Flapper type) that acts to prevent the backflow of water and air. This increases the volumetric efficiency and improves the final vacuum quality, avoiding the second pumping stage with the consequent decrease in size and power required, and increase in the overall performance.