IR, IRX

Summary

Product Identification

The SAER IR and IR4P series are close-coupled end-suction electric pumps, normalized according to EN 733 rules.

Main Components:

• Pump body
• Disc
• Impeller
• Shaft
• Mechanical seal
• Gasket

Available Versions and Materials (for components in contact with the liquid):

• IR / IR4P:
  • Pump body: Cast iron EN-GJL-250
  • Impeller: Cast iron EN-GJL-250
  • Seal holding cover/disc: Cast iron EN-GJL-250
  • Shaft: Stainless steel Duplex (IR), AISI 316 (IR4P)
  • Gasket: Natural fibre
• IR-M / IR4P-M (Marine Bronze Version):
  • Pump body: Bronze G-CuSn10
  • Impeller: Bronze G-CuSn10
  • Seal holding cover/disc: Bronze G-CuSn10
  • Shaft: Stainless steel Duplex (IR), AISI 316 (IR4P)
  • Gasket: Natural fibre
• IRX / IRX4P (Stainless Steel Version):
  • Pump body: Stainless steel AISI 316
  • Impeller: Stainless steel AISI 316
  • Seal holding cover/disc: Stainless steel AISI 316
  • Shaft: Stainless steel Duplex (IR), AISI 316 (IR4P)
  • Gasket: Anti-acid natural fibre

Operating Limits

• Temperature of the pumped liquid: -15°C to +120°C
• Max environment temperature: 40°C (for higher temperatures, verify)
• Max operation pressure: Maximum allowed pressure considering the sum of max. suction pressure and the head with null flow rate.
• PN max standard: 10
• PN max on request: 16 (for IR/IR4P Cast Iron, IRX/IRX4P Stainless steel up to +50°C); 14 (for IRX/IRX4P Stainless steel +50°C / +120°C)
• Max manometric suction height: Approximately 1.5 m (characteristics reduce for heights up to 6-7 m)

Feed Water

• Designed for continuous service with clear water (specific weight = 1000 kg/m³).

Electrical

• Motor: Asynchronous with 2 or 4 poles and external ventilation.
• Protection: IP55
• Insulation: Class F
• Standard Tensions (50 Hz frequency):
  • 220-240V up to 4 kW
  • 380-415V / 660-720V starting from 5.5 kW
• Motor Performance Tolerances: IEC 60034-1 rules.

Mechanical / Hydraulic

• Pump Body: Dimensions and performances according to EN 733 rules.
• Impeller: Closed, dynamically balanced with balance holes for axial thrust.
• Shaft: Completely in stainless steel.
• Bearings: Greased ball bearings.
• Flanges (UNI EN 1092-2):
  • Up to DN 150: PN16
  • From DN 200: PN10
• Mechanical Seal: Standard (see page 152 of the official PDF for details), special seals on request.
• Installation: Can be positioned with horizontal, sloping, or vertical axis, always with the motor upwards.
• DN Aspiration: 50 to 100 (150 for IR4P)
• DN Delivery: 32 to 80 (125 for IR4P)
• Maximum Flow Rate (Qmax):
  • 275 m³/h @ 2900 1/min
  • 400 m³/h @ 1450 1/min
• Maximum Head (Hmax):
  • 100 m @ 2900 1/min
  • 43 m @ 1450 1/min
• Pump Performance Tolerances: UNI EN ISO 9906 Appendix A, level 1 on request.
• Minimum Suction Pipe Diameters (for catalogue data):
  • Pump Suction DN (mm) | Suction Pipe DN (mm)
  • 50 | 80
  • 65 | 100
  • 80 | 150
  • 100 | 200
  • 125 | 250
  • 150 | 300

Hydraulic Features and Dimensions: Detailed hydraulic performance curves, electrical data (kW, HP, In(A), ls/ln), and dimensions/weights for specific models (e.g., IR32-125C, IR40-160NC/B, IR50-250NA, IR65-200NA, IR80-200A) are provided in tabulated form across multiple pages (7-16) of the official PDF. See the official PDF for exact tabulated values.

Special Versions & Accessories

Special Versions (on request):

• Alternative constructive materials (refer to page 6 of the official PDF)
• Different mechanical seals (refer to page 152 of the official PDF)
• Mechanical seal normalized according to UNI EN 12756
• Special tensions
• 60 Hz frequency

Accessories (on request):

• Kit counterflanges
• Motors with PTC protection

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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 for any project must always match the specific OEM PDF revision used for that project.

Official datasheet (PDF)

Lenntech datasheet mirror