Pedrollo HF high flow

Summary

Product identification

The Pedrollo HF series comprises high-flow centrifugal pumps designed for civil, agricultural, and industrial applications. These pumps are suitable for continuous operation, offering high efficiency for tasks such as furrow and sprinkler irrigation, drawing water from lakes, rivers, and wells, and various industrial uses requiring substantial flow rates at medium-low head pressures.

• Performance Range:
  • Flow rate up to 2400 l/min (144 m³/h)
  • Head up to 24.5 m
• Minimum Efficiency Index (MEI): ≥ 0.40

Operating limits

• Manometric suction head: Up to 7 m
• Liquid temperature: Between -10 °C and +90 °C
• Ambient temperature: Up to +40 °C
• Maximum working pressure:
  • 6 bar for HF 4
  • 10 bar for HF 6-8-20-30
• Duty: Continuous running duty S1

Feed water

• Clean water

Electrical

The pumps are equipped with electric motors designed for stable and quiet operation.

• Motor Type:
  • Three-phase pumps are designed to work with inverters.
• Efficiency Class (IEC 60034-30-1):
  • IE3 for three-phase motors
  • IE2 for single-phase motors
• Insulation: Class F
• Protection: IPX4
• Single-phase models (HFm):
  • 230 V - 50 Hz with winding integrated thermal motor protection.
• Three-phase models (HF):
  • 230/400 V - 50 Hz up to 4 kW
  • 400/690 V - 50 Hz from 5.5 to 7.5 kW
• Absorption (Currents):
  • Single-phase 230 V:
    • HFm 4: 5.9 A
    • HFm 6C: 8.8 A
    • HFm 6B: 10.4 A
    • HFm 6A: 13.5 A
  • Three-phase 230 V:
    • HF 4: 4.3 A
    • HF 6C: 6.2 A
    • HF 6B: 7.8 A
    • HF 6A: 9.0 A
    • HF 8B: 13.0 A
    • HF 8A: 15.7 A
    • HF 20B: 14.7 A
    • HF 20A: 15.2 A
  • Three-phase 400 V:
    • HF 4: 2.5 A
    • HF 6C: 3.6 A
    • HF 6B: 4.5 A
    • HF 6A: 5.2 A
    • HF 8B: 7.5 A
    • HF 8A: 9.1 A
    • HF 20B: 8.5 A
    • HF 20A: 8.8 A
    • HF 30B: 12.3 A
    • HF 30A: 16.5 A
  • Three-phase 690 V:
    • HF 30B: 7.1 A
    • HF 30A: 9.5 A
• Available upon request: Different voltage requirements, 60 Hz frequency.

Mechanical / hydraulic

• Ports: Sizes vary by model, e.g., 2½" for HF 4, 3" for HF 6 models, 4" for HF 8, HF 20, and HF 30 models.
• Dimensions and Weight: See the official PDF for exact tabulated values for each model.
• Performance Data: Performance curves comply with EN ISO 9906 Grade 3B tolerance limits. See the official PDF for detailed curves and performance data at HS=0 m.

Materials

• Pump body: Cast iron with ISO 228/1 threaded ports
• Cover: Cast iron (AISI 304 stainless steel for HF 4)
• Impeller:
  • Stainless Steel AISI 304 for HF 4-6
  • Brass for HF 8
  • Cast iron for HF 20, HF 30
• Mechanical seal:
  • HF 4 (AR-14, Ø 14 mm): Ceramic / Graphite / NBR
  • HF 6 (FN-18, Ø 18 mm): Graphite / Ceramic / NBR
  • HF 8, HF 20 (FN-20, Ø 20 mm): Graphite / Ceramic / NBR
  • HF 30 (FN-24, Ø 24 mm): Graphite / Ceramic / NBR
• Motor shaft: Stainless steel AISI 431

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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 for the project.

Official datasheet (PDF)

Lenntech datasheet mirror