Pedrollo 4PD

Summary

Product identification

• 4" submersible motors, series 4PD.
• Constructed from premium AISI 316 and DUPLEX materials for a long service life.
• Features a DUPLEX stainless steel shaft and an AISI 316 casing.
• DUPLEX steel is recognized for its outstanding mechanical strength, which is twice that of AISI 304/316L steel.

Operating limits

• Liquid temperature: up to +40 °C
• Depth of use: up to 200 m below water level
• Starts per hour: max. 20 at regular intervals
• Minimum cooling flow: 8 cm/s

Electrical

• Motor Type: 2 poles, 50 Hz (n ≈ 2900 min⁻¹)
• Voltage:
  • Single-phase: 230 V
  • Three-phase: 400 V (230 V three-phase also listed in performance data)
• Power: From 0.37 to 7.5 kW
• Duty: Continuous running duty S1
• Insulation: Class F
• Protection: IP 68
• Available upon request: Different voltage requirements, 60 Hz frequency.
• Power cable included:
  • 2 m for power ratings from 0.37 to 2.2 kW
  • 3.6 m for powers from 3 to 7.5 kW

Performance Data (50 Hz) The document provides detailed tables for single-phase (230 V) and three-phase (230 V, 400 V) models, listing parameters such as:

• Type designation (e.g., 4PDm / 0.50, 4PD / 0.50)
• Rated power (P2 in kW and HP)
• Axial load (N)
• Revolutions (min⁻¹)
• Starting current (A)
• Nominal current (A)
• Power factor (Cos φ)
• Capacitor (μF) for single-phase versions
• Dimensions (h2 in mm)
• Weight (kg)
• Absorption (A) for various models and voltages.

See the official PDF for exact tabulated values.

Mechanical / hydraulic

• Motor Diameter: Ø 92 mm
• Coupling dimensions: In compliance with NEMA standards.
• Motor construction: Rewindable motor in oil bath (non-toxic food-safe oil).
• Sleeve: AISI 316 stainless steel.
• Shaft: 'DUPLEX' stainless steel.

Corrosion Control

• A sacrificial anode, composed of a 'cadmium-free' zinc-aluminum alloy safe for potable water, is available upon request (code ASS4PDA01).
• This anode shields against corrosion, especially from stray currents or aggressive water, thereby extending the lifespan of the motor and pump components.

Disclaimer: Extraction may miss figures, footnotes, or revisions; contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror