SCUBA

Summary

Product Identification

• Series: SCUBA
• Type: Close-coupled submersible electric pumps
• Market Sectors: Residential, Agriculture, Industry
• Applications:
  • Water supply from primary water supply tanks or reservoirs, 6” wells, basins, and watercourses.
  • Sprinkler irrigation systems.
  • Pressure boosting with pump directly inserted in tank or well, to avoid suction problems and noise.
  • Rain water harvesting.
  • Car washing system.
• Identification Code Example: SC2076CGL27
  • SC = SCUBA series pump
  • 2 = Flow rate 2 m³/h
  • 07 = Motor power 0.75 kW
  • 6 = 60 Hz
  • Null = Single-phase
  • C = With capacitor
  • G = Float
  • L27 = 20 m cable H07

Operating Limits

• Delivery: up to 8 m³/h at 3450 rpm
• Head: up to 75 m at 3450 rpm
• Maximum Overall Diameter of Electric Pump: 128 mm
• Maximum Immersion Depth: 20 m
• Maximum Permissible Quantity of Suspended Sand: 25 g/m³
• Passes Solids: up to 2.5 mm
• Delivery Port: Rp 1 1/4
• Motor Power: 0.75 to 1.1 kW
• Maximum Supply Voltage Variations: ±5%
• Maximum Number of Starts per Hour (evenly distributed):
  • 25 for motors up to 0.9 kW
  • 20 for motors 1.1 kW
• Maximum Water Temperature in Contact with Motor: 40°C (continuous use)
• Liquid Density for Performance Validity: ρ = 1.0 kg/dm³
• Kinematic Viscosity for Performance Validity: ν = 1 mm²/sec
• Minimum Distance between Pump Diameter and Internal Well Diameter: 3 mm
• Minimum Water Circulation Speed Around Motor: 8 cm/sec
• Minimum Dynamic Water Level in Well: 1 m above the pump’s delivery port

Electrical

• Single-phase Version:
  • 220-240 V, 60 Hz
  • With built-in automatic reset overload protection.
  • With built-in capacitor.
• Three-phase Version:
  • 220-230 / 380-415 V, 60 Hz
  • Overload protection to be provided by user and installed in the control panel.
• Insulation Class: F
• Cable Lengths: 10 m or 20 m
• Cable Types and Cross-sections:
  • Single-phase: H07RN-F (3G1 or 3G1.5)
  • Three-phase: H07RN-F (4G1)
• Capacitor Values (Single-phase, µF / 450 V):
  • SC2076C, SC2096C, SC4076C, SC4096C: 25
  • SC2116C, SC4116C: 30
• Input Power and Current (Maximum values in specified range):
  • Single-phase 220-230 V:
    • SC2076C: 0.95 kW, 4.47 A
    • SC2096C: 1.17 kW, 5.40 A
    • SC2116C: 1.41 kW, 6.43 A
    • SC4076C: 0.97 kW, 4.52 A
    • SC4096C: 1.15 kW, 5.31 A
    • SC4116C: 1.49 kW, 6.80 A
  • Three-phase 220-230 V:
    • SC2076T: 0.85 kW, 2.99 A
    • SC2096T: 1.08 kW, 3.52 A
    • SC2116T: 1.32 kW, 4.10 A
    • SC4076T: 0.87 kW, 3.03 A
    • SC4096T: 1.06 kW, 3.46 A
    • SC4116T: 1.40 kW, 4.30 A
  • Three-phase 380-400 V:
    • SC2076T: 1.73 A
    • SC2096T: 2.03 A
    • SC2116T: 2.37 A
    • SC4076T: 1.75 A
    • SC4096T: 2.00 A
    • SC4116T: 2.48 A
• Pump - Panel Combination: The document provides a table for matching three-phase pump types with control panel types (QTD/... and Q3D/...). See the official PDF for exact tabulated values.

Mechanical / Hydraulic

• Construction Characteristics:
  • Close-coupled, multiple impeller submersible electric pump.
  • The liquid end is located underneath the electric motor, which is cooled by the pumped liquid.
  • Can also operate in horizontal position.
• Materials:
  • Impellers: Technopolymer
  • Diffusers: AISI 304 stainless steel
  • Outer Sleeve, Motor Casing, Suction Screen, Shaft Extension: AISI 304 stainless steel
  • External Mechanical Seal: Silicon carbide
  • Internal Mechanical Seal (fixed part): Steatite
  • Internal Mechanical Seal (rotary part): Carbo-graphite
  • Elastomers: Nitrile rubber (NBR)
  • Motor Shaft: Acciaio inox EN 10088-3-X17CrNi16-2 (1.4057) / AISI 431
  • Pump Shaft: Acciaio inox EN 10088-1-X5CrNi18-10 (1.4301) / AISI 304
  • Other components (e.g., Sleeve with head, Initial bowl, Final diffuser, Final bowl, Filter): AISI 304 stainless steel
  • Bearing spider, Lower head, Upper head: Technopolymer PPS
  • Lower bearing support: Die-cast aluminium
  • Bush bearing: Technopolymer PU
  • Capacitor housing spacer: PA66-GF35
• Dimensions and Weights:
  • Length (L mm):
    • SC2076C, SC2076T, SC4076C, SC4076T: 516
    • SC2096C, SC2096T, SC4096C, SC4096T: 541
    • SC2116C, SC2116T, SC4116C, SC4116T: 586
  • Weight (kg):
    • SC2076C, SC2076T: 17.5
    • SC2096C, SC2096T: 16.3
    • SC2116C, SC2116T: 17
    • SC4076C, SC4076T: 17
    • SC4096C, SC4096T: 16
    • SC4116C, SC4116T: 18
• Hydraulic Performance: See the official PDF for exact tabulated values and performance curves (pages 4, 9, 10, 11).

Optional Features

• Pre-assembled float switch (SCUBA CG)
• Kit with inverter ResiBoost
• External capacitor

Installation Guidelines

• Control panel equipped with a main switch and thermal relay for overload protection is required.
• Non-return valve at 10 meters’ distance from the delivery ports, plus an additional non-return valve every 30-50 meters of piping.
• Gauge and gate valve at well mouth.
• Electronic probes or floats for protection against dry running.
• Secure the drop cable to the pipe every 2-3 meters of piping.
• Ensure the electric pump is installed at a safe distance from the bottom of the well.

Technical Appendix Information

The document includes a technical appendix with detailed information on:

• Submersible electric pump installation diagrams.
• Asynchronous motor starting systems (Direct, Star-Delta, Impedances, Autotransformer).
• Water requirements for civil users and community buildings, including consumption tables and contemporaneity coefficients.
• NPSH (Net Positive Suction Head) calculations and factors affecting cavitation.
• Tables for water vapour pressure and density.
• Flow resistance in straight cast iron pipelines (Hazen-Williams formula C=100) and flow resistance in bends, valves, and gates.
• Conversion tables for volumetric capacity, pressure and head, length, volume, and temperature.

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

Official datasheet (PDF)

Lenntech datasheet mirror