Pedrollo 3SR

Summary

Product Identification

The Pedrollo 3SR series consists of 3-inch submersible pumps designed for transferring clean water. They are suitable for household use, irrigation, and small community water systems.

Performance Range

• Flow rate: up to 120 l/min (7.2 m³/h)
• Head: up to 267 m

Installation and Use

These pumps are designed for easy installation in wells 3 inches wide or more. They are capable of handling water with up to 150 g/m³ of sand.

Operating Limits

• Liquid temperature: up to +35 °C
• Maximum sand content: 150 g/m³
• Capable of operating at depths of up to 100 metres below water level (with an appropriately sized power cable)
• Operation: Vertical
• Starts per hour: 20 at regular intervals
• Minimum motor cooling flow: 8 cm/s

Electrical

• Motor: Rewindable motor in oil bath (non-toxic food-safe oil), 2-pole, 50 Hz
• Voltage:
  • Single-phase: 230 V
  • Three-phase: 400 V
• Duty: Continuous running duty S1
• Insulation: Class F
• Protection rating: IP 68
• Shaft and sleeve: AISI 304 stainless steel
• Flange coupling dimensions: NEMA standard
• Connector with power cable from:
  • 1.5 m for power up to 0.75 kW
  • 2.0 m for power ratings from 1.1 kW
• Available upon request:
  • 10, 20, 30 or 40 metres long power cable
  • Different voltage requirements
  • 60 Hz frequency
• Absorption (230 V / 50 Hz, Single-phase):
  • Power (P2): 0.25 kW (0.33 HP) to 1.1 kW (1.5 HP)
  • Axial Load: 800 N
  • Capacitor (VL=450V): 12.5 μF to 30 μF
  • Current: 3.2 A to 8.0 A
• Absorption (400 V / 50 Hz, Three-phase):
  • Power (P2): 0.25 kW (0.33 HP) to 1.1 kW (1.5 HP)
  • Axial Load: 800 N
  • Current: 1.4 A to 3.5 A

Mechanical / Hydraulic

• Delivery port: Micro-cast AISI 304 stainless steel with thread according to ISO 228/1
• Check valve: Stainless steel AISI 304
• Motor bracket: AISI 304 micro-cast stainless steel, sized to NEMA standards
• Impellers:
  • Delrin® for 3SR 1-2-4 models
  • Noryl™ for 3SR 5 models
• Diffusers: Noryl™ - AISI 304 stainless steel
• Diffuser cover:
  • Noryl™ - AISI 304 stainless steel for 3SR 1-2-4 models
  • Noryl™ for 3SR 5 models
• Pump shaft: Stainless steel AISI 304
• Pump bearings: Made of AISI 316L stainless steel coated with chromium oxide
• Tow coupling: Stainless steel AISI 316L
• Filter: Stainless steel AISI 304
• Cable sheath: Stainless steel AISI 304
• Motor 3": Rewindable oil-submerged motor
• Dimensions and Weight: See the official PDF for exact tabulated values for specific single-phase and three-phase models.

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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 original OEM PDF. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror