7061

Summary

Product identification

• Models: P7061, P7065, P7081, P7101, P7105, P7121, P7125
• Type: Large Submersible Propeller Pumps
• Application: Intended for transport of large volumes of water at low heads, in column installation.
  • Suitable for clean, surface, or storm water.
  • An N-version propeller design is available for pumping screened wastewater, with sustained high efficiency.
• Installation: L-installation.
• Design: Designed with a considerably smaller footprint than conventional pumps.
• Options:
  • Zinc anodes for corrosion protection
  • Special coating system (with epoxy base coat) for demanding environments
  • Power monitoring
  • Monitoring options for temperature, vibration, and water in the oil housing

Operating limits

• Liquid temperature: Max. +40°C (+105°F)
• Depth of immersion: Max. 20 m (65 ft)
• pH of pumped liquid: pH 5.5–14
• Liquid density: Max. 1100 kg/m³ (9.17 lb per gal.)

Mechanical / hydraulic

Materials

• Propeller:
  • P7065, P7105, P7125: Stainless steel (austenitic)
  • P7061, P7081, P7101, P7121: Aluminum bronze (copper-aluminum alloy) or Stainless steel (austenitic)
• Pump housing:
  • P7065, P7081, P7121: Cast iron
  • P7105, P7125: Cast iron
• Drive unit (Pump housing for P7061, P7101): Cast iron
• Bell mouth:
  • P7105, P7125: Cast iron
• Outer casing complete (flow shield):
  • P7061 (6X5), P7101 (7X5): Hot-rolled structural steel or Stainless steel (austenitic)
• Mechanical face seals:
  • Inner seal: Corrosion resistant cemented tungsten carbide (WCCR)
  • Outer seal: Corrosion resistant cemented tungsten carbide (WCCR) or Corrosion resistant silicon carbide (RSiC)
• Drive unit shaft: Martensitic stainless steel or Duplex stainless steel
• O-rings: Nitrile rubber 70⁰ IRH

Coating System

• Standard:
  • Basecoat: Acrylic (waterborne) or alkyd (solventborne)
  • Topcoat: Oxirane ester, 2–pack
  • Total dry film thickness: 120–350 μm
• Special (option):
  • Basecoat: Epoxy, 2 layers
  • Topcoat: Oxirane ester, 2–pack, 1 layer
  • Total dry film thickness: 350–700 μm
• Other coating systems are available for special requirements such as drinking water, high temperature, or erosion applications.

Mounting-related data

• Depth of immersion: Maximum 20 m (65 ft)
• Weight: See the dimensional drawing for pump weights.
• Pump- or ball-throughlet:
  • P7061: 65 mm (2.56 inch) at 8° blade angle; 120 mm (4.72 inch) at 25° blade angle
  • P7065: 72 mm (2.83 inch) at 11° blade angle; 132 mm (5.2 inch) at 25° blade angle
  • P7081: 77 mm (3.03 inch) at 8° blade angle; 135 mm (5.31 inch) at 22° blade angle
  • P7101: 103 mm (4.06 inch) at 8° blade angle; 180 mm (7.09 inch) at 22° blade angle
  • P7105: 112 mm (4.41 inch) at 8° blade angle; 196 mm (7.72 inch) at 22° blade angle
  • P7121: 125 mm (4.92 inch) at 8° blade angle; 225 mm (8.86 inch) at 22° blade angle
  • P7125: 138 mm (5.43 inch) at 8° blade angle; 249 mm (9.80 inch) at 22° blade angle

Electrical

Cables

• SUBCAB™: Maximum voltage 600–1000 V, intended for drive units up to 1 kV.
• NTSCGEWTOEUS: For use with medium voltage (1.2–6.6 kV) drive units (available for P7101, P7105, P7121, P7125 models).
• Consult Xylem for cable dimensions.

Drive Units

• Voltage range: Up to 1 kV or 1.2–6.6 kV, depending on model and drive unit.
• Maximum number of starts per hour: 10 or 15, depending on the specific drive unit.
• See the official PDF for exact tabulated values of standard and explosionproof drive units and their respective maximum starts per hour per model.

Motor Data

• Frequency: 50 Hz or 60 Hz
• Stator insulation class: H (180°C [356°F])
• Voltage variation: Max. +/- 10%
• Voltage imbalance between the phases: 2%
• Motor encapsulation: IP68

Monitoring Systems: MAS 801 and MAS 711

The pumps are designed to be used with MAS 801 or MAS 711 monitoring systems.

MAS 801 (Standard equipment includes):

• Thermal contacts or PTC thermistors for stator winding temperature monitoring (3 in series)
• Leakage sensor in the stator housing
• Leakage sensor in the junction box
• Pt100 sensor for main bearing temperature monitoring
• Pt100 sensor for stator winding temperature in one phase
• Vibration in three directions
• Current transformer for pump current and frequency measurement
• Signal cable built into the motor cable.
• Includes PEM (Pump Electronic Module) with pump memory.

MAS 801 (Optional features):

• Pt100 sensors for stator winding temperature measurement in phases 2 and 3
• Pt100 sensor for support bearing temperature measurement
• Leakage sensor in the oil housing (Capacitive leakage sensor, CLS)
• Optional monitoring channels via power analyzer PAN 312: Three-phase power, Power factor, System voltage, Voltage imbalance, Pump current, Current imbalance.

MAS 711 (Standard monitored parameters):

• Pump memory (printed circuit board includes a temperature sensor)
• Leakage in the junction box (Float switch leakage sensor, FLS)
• Main bearing temperature (Pt100 analog temperature sensor)
• Leakage in the stator housing (Float switch leakage sensor, FLS)
• Stator winding temperature (configurations vary by drive unit voltage, including thermal contacts, PTC thermistors, and Pt100 analog temperature sensors)
• Requires a separate signal cable (12 or 24 leads).
• Pump current requires a current transformer in the control cabinet.

MAS 711 (Optional monitored parameters):

• Support bearing temperature (Pt100 analog temperature sensor)
• Water in oil (Capacitive leakage sensor, CLS)
• Vibration (VIS 10)
• Power monitoring (Separate electronic instrument with three current transformers)
• Additional Pt100 analog temperature sensors for stator windings (for up to 1 kV drive units, requires 24-lead signal cable)

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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 official OEM PDF datasheet. Contractual data for any project must always match the specific OEM PDF revision used for that project.

Official datasheet (PDF)

Lenntech datasheet mirror