E4-6 60Hz Borehole Pumps

Summary

Product Identification

Caprari E4-6 Series Electric Borehole Pumps, 60 Hz. The document code is 996406E/06-23.

Pump identification codes follow a structure such as E[DN]X[Performance][ID Number]-[Motor Flange]/[Stages]-[Frequency]. Examples:

• E4XED 25/25-W: E4X (Series), ED (Desert), 25 (Identification wet number), -4 (Coupling flange motor 4"), /25 (Number of stages), -W (Unit used at 50/60 Hz).
• E6XD 20/24-Z: E (Series), 6 (DN in inch), XD (Desert), 20 (Identification wet number), -6 (Coupling flange motor 6"), /24 (Number of stages), -Z (Unit used at 60 Hz).

Submersible motor identification codes follow a structure such as MC[Thrust/Type][Nominal Diameter][Nominal Power]-[Manufacturing Characteristics]. Examples:

• MCH44-8: MC (Submersible motor), H (Axial thrust), 4 (Nominal diameter in inches), 4 (Nominal power in CV), -8 (Manufacturing characteristics).
• MAC67/3A-8: MAC (Submersible motor), 6 (Nominal diameter in inches), 7 (Nominal power in CV), /3 (Generational code), A (Hi Tech), -8 (Manufacturing characteristics).

Mechanical / Hydraulic

Pump Construction Materials (E4XED, E4XPD Series):

• Valve body, Casing, Shaft, Box coupling, Cable guard, Suction cover, Strainer, Sand guard: Stainless steel
• Shaft sleeve: Aluminium oxide
• Impeller, Diffuser, Conical valve: Technopolymer
• Intermediate plate: Stainless steel/rubber
• Bolts and nuts: Stainless steel

Pump Construction Materials (E6XD, E6XPD Series):

• Valve casing, Conical valve, Pump shaft, Shaft sleeve, Stage casing, Cable guard, Coupling, Suction casing, Strainer: Stainless steel
• Shaft bearing bush: Rubber
• Impeller, Diffuser: Technopolymer
• Bolts and nuts: Stainless steel

Pump Construction Materials (E6XDB, E6XPDB Series):

• Valve casing, Conical valve, Pump shaft, Shaft sleeve, Stage casing, Intermediate bearing, Cable guard, Flange coupling, Suction cover, Strainer: Stainless steel
• Pump shaft bearing bush: Rubber
• Impeller, Diffuser: Technopolymer
• Bolts and nuts: Stainless steel

Motor Construction Materials (MC4, MCH4, MCK4, MCR4 Series):

• Shaft, Stator shell, Diaphragm cover (MC..405-41): Stainless steel
• Sand guard, Diaphragm: Rubber
• Upper bracket: Cast iron
• Mechanical seal: Silicon carbide/ceramic or Ceramic/graphite
• Upper ball bearing, Lower ball bearing: Steel
• Rotor, Stator: Electrical steel
• Winding: Copper
• Lower bracket: Aluminium
• Diaphragm cover (MC..415-410): Technopolymer
• Bolts and nuts: Stainless steel

Motor Construction Materials (MPC6/3A Series):

• Shaft, Stator shell, Thrust-bearing: Stainless steel
• Sand guard, Diaphragm: Rubber
• Rotor, Stator: Electrical steel
• Winding: PPC
• Lower bracket, Thrust-bearing foot slip, Diaphragm cover, Upper bracket: Cast iron
• Mechanical seal cover: Technopolymer
• Mechanical seal: Silicon carbide/silicon carbide
• Bearing: Graphite
• Thrust-bearing: Stainless steel/Synthetic compound
• Shaft sleeve: Steel
• Bolts and nuts: Stainless steel

Motor Construction Materials (MAC6/3A Series):

• Shaft, Stator shell: Stainless steel
• Sand guard, Diaphragm: Rubber
• Rotor, Stator: Electrical steel
• Winding: Green wire / PPC
• Lower bracket, Thrust-bearing foot slip, Upper bracket: Cast iron
• Mechanical seal: Silicon carbide/silicon carbide
• Bearing: Graphite
• Thrust-bearing: Brass/Synthetic compound
• Diaphragm cover: Technopolymer
• Bolts and nuts: Stainless steel

Motor Construction Materials (MAC6/3B Series):

• Shaft, Stator shell: Stainless steel
• Sand guard, Diaphragm: Rubber
• Upper cover, Lower bracket, Thrust-bearing foot slip, Diaphragm cover, Upper bracket: Cast iron
• Rotor, Stator: Electrical steel
• Winding: Green wire
• Mechanical seal: Silicon carbide/silicon carbide
• Bearing: Graphite
• Thrust-bearing: Brass/Synthetic compound
• Bolts and nuts: Stainless steel

Hydraulic Performance Standards:

• Hydraulic performance characteristics are guaranteed as conforming to standard UNI/ISO 9906 Grade 3B.
• For units coupled to MAC 6…/3B 6" motors, hydraulic characteristics are guaranteed as conforming to standard UNI/ISO 9906 Grade 2B.
• Pumps can be tested according to UNI/ISO 9906 Grade 2B upon request.

Performance Ranges:

• Performance curves for flow rate (Q) in l/s, m³/h, l/min, Imp.g.p.m., US.g.p.m. versus head (H) in m and ft are provided in the official PDF. Efficiency (η) and NPSH curves are also available. See the official PDF for exact tabulated values and graphs.

Overall Dimensions and Weights:

• Dimensions (A, B, C, D, E, F in mm) and weights (kg) are tabulated for specific pump types.
• Check valve Ø is G1 1/4 for E4XED15, E4XED20, E4XED25, E4XED30, E4XED35 series. It is G2 for E4XED40.
• Available with NPT thread.
• See the official PDF for exact tabulated values.

Operating Limits

• Maximum Submersion: 150 m
• Maximum Operating Time (outlet closed, pump submersed): 3 min
• Water Speed Outside Motor Jacket:
  • 0.08 m/s for 4" motors
  • 0.5 m/s for MPC6 motors
  • 0.5 m/s for MAC...A (5-40 cv) motors
  • 0.5 m/s for MAC...B (50-60 cv) motors
• Maximum Liquid Temperature:
  • MC4..: 30°C
  • MPC6: 40°C (5.5 - 20 cv), 35°C (25 - 40 cv), 30°C (50 cv)
  • MAC6...A: 40°C (5.5 - 20 cv), 35°C (25 - 40 cv), 30°C (50 cv)
  • MAC6...B: 45°C (5.5 - 20 cv), 40°C (25 - 40 cv), 35°C (50-60 cv)

Feed Water

• Designed for lifting water chemically and mechanically non-aggressive for components.
• Maximum Solids Content (hardness and granulometry of silt):
  • E4XED - E6XD: 300 g/m³
  • E4XPD60 - E6XPD52 (Extra Performance): 450 g/m³
• Liquid Properties:
  • Density: 1 kg/dm³
  • Kinematic viscosity: Not more than 1 mm²/s
• Hydraulic characteristics measured with cold water (15°C) and atmospheric pressure (1 bar).

Electrical

• Standard Version - Three-Phase/60 Hz Supply Voltage:
  • Direct starting: MC/MPC/MAC…-8; 460 V for all power outputs.
  • Motors are suitable for inverter operation; a filter is required between the motor and inverter to attenuate voltage gradient.
• Available Versions (On Request) - Three-Phase/60 Hz Supply Voltage:
  • 4" Motors:
    • MC...-6: 265 V up to 7.5 kW
    • MC...-8: 460 V up to 7.5 kW
  • 6" Motors:
    • MPC…-8: 460 V up to 37 kW
    • MPC…-9: 460/796 V up to 37 kW
    • MAC...-6: 265 V up to 30 kW
    • MAC...-7: 220/460 V up to 45 kW (37 kW for MAC6../3A)
    • MAC...-8: 460 V up to 45 kW (37 kW for MAC6../3A)
    • MAC...-9: 380/796 V up to 45 kW (37 kW for MAC6../3A) (9.2 - 45 kW for MAC6../3C)
  • Motors can also be supplied for other voltages and frequencies.
  • Single-phase motors: MC.S..M./3 220/230 V up to 4 kW.
  • Special materials for aggressive water available.
• Permissible Voltage Variations (on stated supply voltages without brackets):
  • Three-phase 4"; 6": 230 V ± 10%, 400 V ± 10%.
  • Single-phase 4": ± 5%.
  • For other voltages and frequencies (4"-6"): ± 5%.
• Electrical Tolerances: According to International Standards IEC 34-1.
• Thermal probes are available on request, with the same length as the power cables.

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

Official datasheet (PDF)

Lenntech datasheet mirror