Vogel Series MPE

Summary

Product identification

The Vogel Series MPE are multistage pumps.

Operating limits

• Performance Range:
  • Capacity up to 300 m³/h (1320 USgpm)
  • Head up to 850 m (2780 feet)
  • Speed up to 2950/3550 min⁻¹ (2950/3550 rpm)
• Size:
  • DN 100 up to DN 125 discharge (2.5" - 5")
• Temperature:
  • max. 140°C (284°F) without cooling
  • max. 180°C (356°F) with cooling
• Casing Pressure:
  • max. 100 bar (1450 psig)

Handled Liquids

• Clean or slightly contaminated fluids (without bigger solids)
• Cold and hot water
• Condensate

Applications

• General industry
• Snow-making systems
• Steel mills
• Sugar industry
• Pulp and paper industry
• Power plants
• Reverse Osmosis
• Mine dewatering

Mechanical / hydraulic

Design Features MPE

• Horizontal, "in-between" bearing design, with stiff shaft for lowest shaft deflection.
• Efficiency optimized closed impellers and diffusers avoid radial loads and minimize shaft loads and shaft deflection.
• Thrust balancing by balancing drum with pressure balancing at the discharge side shaft seal considerably reduces the loads on pump bearings and shaft seals.
• Rigid construction with pump feet integrated to pump casing ensures deform-less transmission of pipework loads into foundation.
• Suction- and discharge casing executed with "universal" casing feet for easy change of flange directions.
• Thermal expansion of the pump rotor is balanced internally by a floating bearing at suction side, without affecting the shaft alignment.
• Maintenance friendly design enables the change of bearings and shaft seals without pump disassembly.

Shaft Sealing

• Stuffing Box:
  • With shaft sleeve and lantern ring.
  • Standard execution with internal flush.
  • External flush option available, in case of vacuum during standstill of pump.
  • Up to temperatures of 120°C (248°F).
• Mechanical Seal:
  • Balanced single mechanical seal according to EN 12756 (DIN 24960) at both sides.
  • Standard execution with internal flush, optional external flush.
  • Temperatures up to 140°C (284°F) without cooling.

  • 140°C (284°F) up to 180°C (356°F) with cooling of the stationary ring.

  • Cartridge mechanical seals, in single or double design, are available on request.

Branch Directions

• Standard:
  • Drive-end at discharge side.
  • Sense of rotation clockwise seen from drive side.
  • Discharge branch at drive side, vertically upwards.
  • Suction branch at non-drive side, horizontally left seen from drive side.
• Optional:
  • Discharge as well as suction branch direction can be horizontally left or right or vertically upwards (both branches in the same direction only possible for 3 or higher number of stages).
  • The design with integral casing feet enables changing of branch directions by using the same components.
  • Drive-end at suction side for flexibility at installations with limited space.
  • Sense of rotation counter clockwise seen from drive side.

Materials

• Balancing drum and bush:
  • 141, 341: Balancing drum 1.4021, balancing bush 1.4313
  • 672: Balancing drum 1.4462 coated, balancing bush 1.4462
• Other materials upon request.

Accessories

• Baseframe in welded design
• Flexible coupling
• Coupling guard, made of stainless steel 1.4571 in standard execution
• Motor
• Speed controllers
• Minimum flow- and non return valves
• Special accessories according to customer requirements

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Disclaimer: This summary is based on extracted text and may miss figures, footnotes, or recent revisions present in the official OEM PDF. Contractual data for any project must always match the specific OEM PDF revision used for that project.

Official datasheet (PDF)

Lenntech datasheet mirror