P 7020 7040

Summary

Product identification

The P7020, P7030, P7035, and P7040 are submersible propeller pumps designed for the transport of large volumes of water at low heads. They are intended for column installation in clean, surface, or storm water applications. An N-version propeller design is available for pumping screened wastewater with sustained high efficiency.

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.)

Electrical

• Cables: SUBCAB® cables are specified with a maximum voltage of 600–1000 V, intended for drive units up to 1.1 kV.
• Motor characteristics:
  • Insulation class: H (+180°C, +356°F)
  • Voltage variation: Maximum +/- 10%
  • Voltage imbalance between phases: Maximum 2%
  • Number of starts per hour: Maximum 30
  • Frequency: Models are available for both 50 Hz and 60 Hz operation (e.g., 7020.090, 7020.180, 7030.090, 7030.180, 7035.090, 7035.180, 7040.090, 7040.180).

Mechanical / hydraulic

• Depth of immersion: The maximum depth of immersion is 20 m (65 ft).
• Weights (without cables):
  • P7020: 250 kg (551 lb)
  • P7030: 450 kg (992 lb)
  • P7035: 800 kg (1764 lb)
  • P7040: 800 kg (1764 lb)
• Pump (ball-) throughlet:
  • P7020: 46 mm (1.81 in)
  • P7030: 64 mm (2.52 in)
  • P7035: 50 mm (1.97 in)
  • P7040: 79 mm (3.11 in)

Materials

• Propeller: Stainless steel (austenitic)
• Major castings:
  • Pump housing: Cast iron
  • Bellmouth: Hard-Iron™ (High chromium cast iron)
  • Other major castings: Cast iron
• Lifting handle: Stainless steel (austenitic)
• Mechanical face seals:
  • Inner: Wolfram Carbide Corrosion Resistant (WCCR) rotating ring, WCCR stationary ring
  • Outer: WCCR rotating ring, WCCR stationary ring or Silicon carbide (RSIC) rotating ring, RSIC stationary ring
• Motor shaft: Stainless steel (martensitic)
• Fasteners: Stainless steel (austenitic)
• O-rings: Nitrile rubber (NBR) 70⁰ IRH, Fluorinated rubber (FPM)
• Coating system:
  • Standard: Acrylic (waterborne) or alkyd (solventborne) basecoat, Oxirane ester (2-pack) topcoat. Total dry film thickness 120–350 μm.
  • Special (option): Epoxy (2 layers) basecoat, Oxirane ester (2-pack, 1 layer) topcoat. Total dry film thickness 350–700 μm.
  • Other coating systems are available for special requirements like drinking water, high temperature, or erosion applications.

Monitoring systems

The pumps are designed to be used with MAS 801, MAS 711 (P7030, P7035, and P7040 only), and MiniCAS II monitoring systems.

MAS 801

Standard MAS 801 equipment includes:

• Thermal contacts or PTC thermistors for stator winding temperature monitoring (3 in series)
• Leakage sensor in the leakage chamber
• 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 Optional MAS 801 features include Pt100 sensors for stator winding temperature measurement in phases 2 and 3, and a Pt100 sensor for support bearing temperature measurement.

Stator temperature monitoring methods for MAS 801:

• Configuration with thermal switches: Three thermal switches (normally closed, open at 140°C / 285°F) in series in the stator winding coil ends, plus one Pt100 sensor in one winding.
• Configuration with thermistors: Three PTC thermistors (TRef=140°C / 285°F) in series in the stator winding coil ends, plus one Pt100 sensor in one winding. Analogue sensors allow for two adjustable alarm limits: a warning ("B"-alarm) and a pump stop ("A"-alarm).

MAS 711

Available for pump models P7030, P7035, and P7040 in applications with a single, screened motor cable. Standard MAS 711 equipment uses a 12-lead auxiliary cable plus 4 leads from the motor cable for:

• Thermal switches for stator temperature monitoring (three in series) or PTC thermistors
• Leakage sensor in the inspection chamber
• Leakage sensor in the junction box
• Analogue temperature sensor (Pt100) for main bearing temperature monitoring
• Analogue temperature sensor (Pt100) for stator winding temperature in one phase
• Vibration sensor VIS 10
• Analogue temperature sensor (Pt100) for support bearing temperature monitoring
• Pump memory

Stator temperature monitoring methods for MAS 711 are identical to MAS 801.

MiniCAS II

Parameters trackable with MiniCAS II:

• Stator winding temperature: Standard: 3 thermal switches; Optional: 3 PTC thermistors.
• Leakage in the inspection chamber: Float switch leakage sensor (FLS) (Standard).
• Leakage in the junction box: Float switch leakage sensor (FLS) (Optional).

Accessories and Options

• Mechanical accessories: Cable handling system, Lifting equipment.
• Electrical accessories: Pump controller, Control panels, Starters, MiniCAS-II monitoring.
• Options: Zinc anodes for corrosion protection in seawater, Special coating system (with epoxy base coat) for demanding environments.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in 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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