Vogel Series MP, MPA, MPB, MPV

Summary

Product identification

The Vogel Series MP, MPA, MPB, MPV are multistage pumps.

• Models: MP, MPA, MPB, MPV, MPBH, MPVS, MPAI
• Sizes: DN 40 up to DN 125 (from 1 1/2“ to 5“) discharge
• Design: Modular system with 4 mechanical sizes covering 8 different hydraulics.

Operating limits

• Max. temperature: 140°C (280°F)
• Max. casing pressure: 55 bar (800 psig)
• Performance range:
  • Capacities up to 340 m³/h (1500 USgpm)
  • Head up to 500 m (1640 feet)
  • Max. speed up to 3600 rpm
• Shaft Seal Pressure Limits:
  • Gland packing: Max. 25 bar operation pressure.
  • Mechanical seals: Required above 25 bar operation pressure.
• Vertical Wet Pit Installation Lengths (MPVS):
  • At 2950/3550 rpm: max. 4m
  • At 1450/1750 rpm: max. 10m

Feed water

The pumps are designed to handle pure as well as slightly contaminated media, including:

• cold and hot water
• condensate
• oil suspensions
• acids as well as their watery solutions
• caustic solutions
• brine

Applications

• water supply
• booster systems
• irrigation
• fire fighting
• snow making
• cooling circuits
• boiler feed
• condensate
• district heating
• osmosis and ultra filtration
• spray water systems
• cleaning systems
• mining

Electrical

• HYDROVAR (for MPBH models):
  • A programmable pump control system incorporating a frequency inverter and control logic, directly mounted on the pump motor.
  • Power range: 1.5 to 22 kW (split version up to 45 kW).
  • Control capabilities: Constant pressure control (pump stops at zero flow), following a preset and programmable system curve, constant flow control (using flow meter or differential pressure transmitter), actuator mode.
  • Communication: External communication via an RS 485 interface with Modbus RTU as standard.
  • Multi-pump systems: Self-sufficient with automatic cycling, cut-in/cut-out pumps based on system demand, and pump changing in case of failure.
• Efficiency:
  • Complies with regulation 547/2012/EG (Minimum efficiency index MEI ≥0.1).
  • MEI reference value for water pumps with best efficiency is ≥0.7.
  • A variable speed controller can be used to run the pump more efficiently and economically when operated at different duty points.

Mechanical / hydraulic

• General Design:
  • Multistage pumps with closed radial type impellers and wear rings on both sides.
  • Axial thrust is minimized by balance holes for reduced bearing loads and extended bearing lifetime.
  • Diffusers are separated from stage casings and are easily exchangeable.
  • Designed for heavy-duty industrial applications.
  • All design versions conform to ISO 5199 / EN 25199.
  • Multioutlet design available for all horizontal and vertical MP designs, allowing for multiple discharge branches to serve different pressure zones.
• Type MP (Horizontal):
  • Horizontal shaft with bearings at both ends, drive-end at discharge side (standard).
  • Clockwise rotation (counter-clockwise and other flange orientations optional).
  • Suction branch left, discharge branch radially upwards (adjustable in 90° increments).
  • Grease lubrication for drive end thrust bearing (double row) and suction side ball bearing.
  • Thermal expansion of the pump rotor is balanced internally.
  • Bearings and shaft seal are maintainable without pump disassembly.
• Type MPA (Endsuction):
  • Endsuction design for optimum flow into the first stage impeller.
  • Discharge branch radially upwards, drive end at discharge side.
  • Thrust bearing at drive side with grease lubrication.
  • Medium lubricated slide bearing between first and second stage impeller.
  • Inducer design available for low NPSH applications.
  • Eliminates the need for a second shaft seal.
  • Bearings and shaft sealing are maintainable without pump disassembly.
• Type MPB (Vertical Close Coupled):
  • Vertical close coupled design using standard IEC motors up to 90 kW.
  • Pump shaft directly coupled to the motor shaft (non-flexible coupling).
  • All axial forces absorbed by motor bearings.
  • Medium lubricated slide bearing in suction casing.
  • Shaft sealing maintainable without pump disassembly.
• Type MPV (Vertical with Separate Thrust Bearing):
  • Vertical design with separate thrust bearing (grease lubrication) and flexible coupling between motor and pump shaft.
  • Uses standard IEC motors for 90 kW and larger (110 kW to 355 kW for IEC3, design V1).
  • Medium lubricated sleeve bearing in suction casing.
  • Shaft sealing maintainable without pump disassembly.
• Type MPVS (Vertical Wet Pit):
  • Vertical wet pit design with installation lengths up to 4m (at 2950/3550 rpm) or 10m (at 1450/1750 rpm).
  • Separate grease lubricated thrust bearing.
  • Standard motors according to IEC3, design V1, with flexible coupling.
  • Drive and discharge branch always above liquid level.
  • Medium lubricated sleeve bearings in pump body and shaft section (number depends on installation length).
  • Suitable for variable speed control.
  • Mechanical seal or gland packing available.
  • Suction bells, suction strainers, or foot valves available.
  • Can design and inducer design available for hot or volatile media and low NPSH applications.
• Shaft Seal Options:
  • Seal chamber dimensions comply with ISO 3096.
  • Mechanical seals complying with ISO 3096 and EN 12756, version 'k' can be used.
  • Taper bore type seal chamber is self-venting, ensuring optimum lubrication and cooling.
  • Gland Packing: Available for operation pressures up to 25 bar.
  • Mechanical Seals:
    • Single mechanical seal, design U (unbalanced) up to max. 16 bar.
    • Single mechanical seal, design B (balanced) up to max. 55 bar.
    • Cartridge mechanical seals (single, or double with external flush) are available for ease of mounting and maintenance.
• Materials:
  • Elastics (O-rings): EPDM for hot water up to 140 °C, optional VITON.
  • Standard Materials (examples):
    • Impeller: 0.6025, CC480K, 1.4408, 1.4517
    • Diffuser: 0.6025, 1.4408, 1.4517
    • Casings (Suction, Stage, Discharge): 0.6025, 0.7040, 1.0619, 1.4408, 1.4517 (Discharge casing standard 0.7040 at >40 bar)
    • Shaft: 1.4021, 1.4462
    • Casing wear rings: Optional 1.4462
  • Mechanical Seal Standard Materials:
    • Stationary ring: Carbon (resin impregnated), SiC (pure silicon carbide).
    • Elastics: EPDM, Viton.
    • Metal parts: 1.4571.
  • Optional materials are available upon request.
  • Material codes are cross-referenced with EN (DIN), ISO, BSI (UK), AISI, and ASTM standards.
• Accessories:
  • baseframes
  • couplings
  • coupling guards
  • motors IEC3 standard
  • minimum flow valves
  • speed control
  • special accessories to meet customer requirements

Sectional Drawings

Detailed sectional drawings and corresponding parts lists are available in the official PDF for various pump types and shaft seal configurations (e.g., MP with stuffing box, MP with mechanical seals SA, SB, SD, SC, SE, SF, CD, CS, CQ, SW; MPA with stuffing box). See the official PDF for exact tabulated values.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

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