VAL, SC

Summary

Product identification

These are Calpeda VAL and SC series Vertical Submerged Pumps. They are column sump pumps with the motor in a dry installation and the pump body submerged in the liquid. They operate without a suction line or foot valve.

• Impeller Type:
  • VAL: Free-flow impeller (vortex or recessed impeller)
  • SC: Open impeller
• Connections:
  • VAL 30, SC 30, SC 50: Threaded port ISO 228 (BS 2779)
  • VAL 65: Flange with plain face oval threaded counter-flange UNI 2245, PN 2,5

Applications

These pumps are designed for draining basins or sumps with domestic or industrial sewage. They are suitable for slightly dirty wastewater and liquids that are non-aggressive to the pump materials.

Operating limits

• Liquid temperature: Up to 40 °C
• Ambient temperature: Up to 40 °C
• Duty: Continuous
• Maximum size of solids:
  • VAL 30: 25 mm
  • VAL 65: 50 mm
  • SC 30: 3 mm
  • SC 50: 6 mm
• Special feature (on request): Bronze bearing bush for liquid up to 100 °C

Electrical

• Motor Type: 2-pole induction motor, 50 Hz (n ≈ 2900 rpm)
• Voltage:
  • VAL -SC (three-phase): 230/400 V ± 10%
  • VALM-SCM (single-phase): 230 V ± 10%, with thermal protector
• Insulation Class: F
• Protection: IP 54
• Efficiency: Classification scheme IE3 for three-phase motors from 0,75 kW
• Standards: Constructed in accordance with EN 60034-1; EN 60034-30-1; EN 60335-1, EN 60335-2-41
• Special features on request:
  • Other voltages
  • Frequency 60 Hz (as per 60 Hz data sheet)
  • Protection IP 55

Mechanical / hydraulic

• Construction: Vertical column sump pumps, with motor in dry installation and pump body submerged.
• Materials:
  • Pump casing: Cast iron
  • Lower bearing housing: GJL 200 EN 1561 (not existing for VAL 30)
  • Impeller:
    • VAL 30: Brass P-Cu Zn 40 Pb 2 UNI 5705
    • VAL 65: Cast iron GJL 200 EN 1561
    • SC: Brass P-Cu Zn 40 Pb 2 UNI 5705
  • Shaft: Steel C 40 UNI 7231
  • Bearing bush: Tecnopolymer
  • Shaft sleeve: Chromate bronze (for VAL 65)
• Features:
  • Construction with no mechanical seal minimizes maintenance.
  • Can be fitted with a float switch (on demand) to eliminate the need for level control systems.

Performance, Dimensions, and Weights

Performance curves, detailed dimensions, and weights for specific models (e.g., VAL 30/750/A, SC 50/1250/A) are provided in the official PDF. See the official PDF for exact tabulated values and characteristic curves.

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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