ROTAN ED

ROTAN ED

ROTAN ED

Product catalog summary
Overview: The ROTAN® ED Environmental Duty Pumps are designed for applications where leakage, both liquid and gaseous, is not permissible. These pumps are suitable for handling a variety of substances including isocyanate, solvents, hazardous organic liquids, and more. They are magnetically coupled to prevent leakage and require minimal maintenance, making them cost-effective compared to traditional sealed pumps.
Specifications:
  • Materials: Cast iron, carbon steel, or stainless steel.
  • Capacity: Up to 90 m³/h (396 gpm).
  • Speed: Up to 1750 rpm.
  • Differential Pressure: Up to 16 bar (232 psi).
  • Suction Lift: Up to 0.5 bar (7.25 psi) vacuum while priming, 0.8 bar (11.6 psi) vacuum while pumping.
  • Viscosity Range: Up to 10,000 cSt.
  • Temperature: Up to 250°C (482°F).
Key Features and Benefits:
  • Reversible flow direction with a double-acting relief valve option.
  • Direct coupling to NEMA or IEC motors for speeds up to 1750 rpm.
  • Adjustable rotor end clearance without atmospheric exposure.
  • Torque capabilities exceeding 800 ft-lb.
  • Available in iron, steel, and stainless steel with tungsten carbide for abrasive applications.
Pump Selection Guidelines:
  • Determine pump size based on capacity and viscosity using the provided table.
  • Adjust capacity if the intersection does not align with a pump line.
  • Reduce maximum speed by 50% for abrasive liquids or emulsions.
  • Calculate shaft power using the formula: E(KW) = 0.07 x flow (m³/h) x differential pressure (bar).
  • Adjust shaft power by 35% for high viscosity with small pumps or low viscosity with large pumps.
See more

Catalog excerpts

ROTAN ED-1

ROTAN® EDEnvironmental Duty Pumps Key features and benefits • Reversible direction of flow with double acting relief valve option available • Coupled direct to NEMA or IEC motor for speed up to 1750 rpm • Directed coupled gearbox with NEMA or IEC electric motor eliminating alignment issues • Adjustable rotor end clearance without opening the system to the atmosphere • Torque capabilities in excessive of 800 ft-lb • Flow rates max. 90 m3/h with differential pressure up to max. 16 bar. • Iron, Steel and Stainless Steel construction • Tungsten Carbide abrasive wear materials are available for abrasive duty applications Magnetically coupled pumps for ultimate protection against leakage. As only minimal maintenance is necessary, ED pumps will be a very economical solution compared with traditionally sealed pumps, especially where the application requires the use of double mechanical shaft seals. Often these applications are very different, resulting in the seals and support system requiring regular attention and/or replacement. Thus, the life cycle costs for ED pumps are generally much lower than for pumps using two seals. Available with 90° angular configuration. For more information on Industry solutions, please visit www.desmi.com MARINE & OFFSHORE DEFENCE & FUEL

 Open the catalog to page 1
ROTAN ED-2

Selection of Pump size PLEASE NOTE! ED: Capacity curve up to 151 GP: Capacity curve up to 101 To select the pump size with this table, you should only know: - The capacity - The viscosity We start at the top of the table with the viscosity, and draw a line down, staying within the colour of the selected viscosity range (see example). Then we start at the right of the table, drawing a horizontal line starting with the required capacity (see example). The point where these two lines meet determines the pump size, defined by the diagonal lines in the table. If you do not hit one of these pump lines...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.