E6-18 50Hz Borehole Pumps

Summary

Product Identification

This document describes Caprari E6-18 series 50 Hz Electric Borehole Pumps.

Product codes are structured to identify both the pump (wet end) and the submersible motor.

Pump (Wet End) Code Examples:

• E6P35-6/14 M-V
• E6P55-6/19 A-V
• E8R40N-8/11-W
• E10RB40N-8/14-V

Pump Code Breakdown:

• E.P or E: Series
• 6, 8, 10: DN in inch
• P, R, RB: Impeller type (e.g., P for standard, R for Radial, RB for Radial with Intermediate casing construction)
• 35, 55, 40: Hydraulic identification number
• -6, -8: Coupling flange motor
• /14, /19, /11: Number of stages
• M, A: Impeller trimming
• -V: Unit used at 50 Hz
• -W: Part with operation at 50Hz / 60Hz
• N: NEMA coupling
• B: Intermediate casing construction

Submersible Motor Code Examples:

• MAC625/3A-8
• MAC650/3B-8
• MAC850-8
• M14300-8
• MAC10180/3A-8

Motor Code Breakdown:

• MAC or M: Submersible motor
• 6, 8, 10, 14: Nominal diameter in inches
• 25, 50, 180, 300: Nominal power in HP
• /3: Generational code
• A: HI-TEC
• B: HI-TEC Desert
• -8: Constructional features of electric motor

Operating Limits

General Pump (Wet End) Notes:

• Suitable for raising chemically and mechanically non-aggressive water.
• Maximum content of solids:
  • 40 g/m³ (general)
  • 100 g/m³ (E6P/E8P models)
• Maximum operating time with outlet closed and pump submersed: 3 min.
• Hydraulic performance characteristics are measured with 400 V powered motors, cold water (15°C), and atmospheric pressure (1 bar). They conform to standard UNI/ISO 9906 Grade 3B.
• Catalogue data refers to liquids with a density of 1 kg/dm³ and kinematic viscosity not exceeding 1 mm²/s.
• Friction losses in check valves are included for radial pumps. For mixed-flow pumps, these losses must be deduced from the total head (see the official PDF for friction loss charts).

Motor General Remarks:

• Maximum immersion: 150 m.
• Water velocity outside the motor shell:
  • 0.2 m/s for MPC6… motors
  • 0.3 m/s for M14… motors
  • 0.5 m/s for MAC... (6"-12") - MPC8..-MPC10.. motors
• Maximum liquid temperature (varies by motor type):
  • MPC6.. = 30°C
  • MPC8.. - MPC10.. = 25°C
  • MAC6.. A = 40°C (5 - 20 cv), 35°C (25 - 40 cv), 30°C (50 cv)
  • MAC6.. B = 45°C (5 - 20 cv), 40°C (25 - 40 cv), 35°C (50 - 60 cv)
  • MAC8... = 30°C
  • MAC10... = 25°C
  • MAC12... = 25°C
  • M14... = 25°C

Feed Water

• Chemically and mechanically non-aggressive water.
• Maximum solids content: 40 g/m³ (general), 100 g/m³ (E6P/E8P).
• Performance measured with cold water (15°C).
• Liquids with a density of 1 kg/dm³ and kinematic viscosity not more than 1 mm²/s.

Electrical

Standard Execution - Three-phase/50 Hz Power Supply:

• Direct Start:
  • 6"-12" motors (MAC…-8): 400V for all powers.
  • 14" motors (M…-8): 400V for all powers.
• All motors are suitable for operation with inverters (consult sales network for prescriptions).

Available Executions (Three-phase/50 Hz Power Supply):

• 6" Motors:
  • MPC…-8: 400 V up to 37 kW
  • MPC…-9: 400/700 V up to 37 kW
  • MAC...-6: 230 V up to 30 kW
  • MAC...-7: 230/400 V up to 45 kW (37 kW for MAC6../3A)
  • MAC...-8: 400 V up to 45 kW
  • MAC...-9: 400/700 V up to 45 kW (37 kW for MAC6../3A) (4 - 45 kW for MAC6../3C)
• 8" Motors:
  • MPC…-8: 400 V up to 92 kW
  • MPC…-9: 400/700 V up to 92 kW
  • MAC…-6: 230 V up to 75 kW
  • MAC…-7: 230/400 V up to 75 kW
  • MAC...-8: 400 V up to 110 kW
  • MAC…-9: 400/700 V up to 110 kW
• 10" Motors:
  • MPC…-8: 400 V up to 150 kW
  • MPC…-9: 400/700 V up to 150 kW
  • MAC…-6: 230 V up to 110 kW
  • MAC…-7: 230/400 V up to 132 kW
  • MAC...-8: 400 V up to 185 kW
  • MAC…-9: 400 V up to 185 kW
• 12" Motors:
  • MAC…-9: 400 V up to 280 kW
• 14" Motors:
  • M…-8: 400 V up to 450 kW

Special Motor Options (Upon Request):

• Motors for different voltages and frequencies.
• Special winding for hot water (standard for MAC12300 and M14).
• Special materials for aggressive water.

Mechanical / Hydraulic

Pump Construction and Materials: The E6-18 series pumps feature various material configurations depending on the specific model (E6P, E8P, E8R, E10R, E8RB, E10RB, E10S, E12S50, E12S55, E12S58, E12S42, E14S64, E14S50, E14S55, E14SE, E18S64). Common materials include:

• Valve casing: Cast iron, Nodular cast iron
• Conical valve: Stainless steel, Cast iron, Cast iron/rubber
• Pump shaft: Stainless steel
• Diffuser unit: Cast iron
• Cable guard: Stainless steel
• Impeller: Cast iron, Technopolymer, Stainless steel
• Coupling: Stainless steel
• Strainer: Stainless steel
• Suction casing: Cast iron, Nodular cast iron
• Shaft bearing bush: Stainless steel/rubber, Bronze
• Wear ring: Steel/Rubber, Stainless steel/rubber, Steel, Cast iron
• Bearing bush: Bronze, Stainless steel/rubber
• Delivery casing: Cast iron, Nodular cast iron
• Tie rod: Steel
• Intermediate bearing: Cast iron
• Valve spindle: Stainless steel
• Valve ring: Bronze, Cast iron
• Sand guard: Stainless steel/rubber
• Connecting flange: Steel
• Bolts and nuts are consistently stainless steel.

Motor Construction and Materials: Motor construction also varies by model (MPC6/3A, MPC8/1A, MPC10/1A, MAC6/3A, MAC6/3B, MAC8, MAC10/1A, MAC12, M.14). Common materials include:

• Shaft: Stainless steel
• Sand guard: Rubber, Bronze, Stainless steel
• Rotor & Stator: Electrical steel
• Stator shell: Stainless steel
• Winding: PPC, Green wire, PE2+PA
• Lower bracket: Cast iron
• Mechanical seal cover: Technopolymer, Stainless steel, Cast iron
• Mechanical seal: Silicon carbide/silicon carbide
• Bearing: Graphite, HT Synthetic, Bronze
• Thrust-bearing: Stainless steel/Synthetic compound, HT, Brass/Synthetic compound
• Thrust-bearing foot slip: Cast iron, Nodular cast iron
• Diaphragm: Rubber
• Diaphragm cover: Cast iron, Technopolymer
• Upper bracket: Cast iron
• Shaft sleeve: Steel, Chrome plated steel
• Motor bracket: Cast iron, Nodular cast iron
• Connecting flange: Cast iron, Nodular cast iron
• Bolts and nuts are consistently stainless steel.

Other Information (Details in Official PDF): The full PDF datasheet contains additional information on:

• Performance ranges
• Operating data
• Friction losses
• Overall dimensions and weights
• Dynamic momentum of the wet end and motor
• Feeding cables
• Maximum permitted current
• Maximum admitted cable length
• Generator power
• Common electric formulae
• Electrical tolerances
• Reactive power compensation
• Accessories

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions present in the official OEM PDF datasheet. For contractual data and complete specifications, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror