GQS 40

Summary

Product Identification

Calpeda GQS 40 series submersible sewage and drainage pumps. These are single-impeller pumps with a free-flow (vortex) impeller and a vertical threaded delivery port.

Operating Limits

• Liquid temperature: up to 35° C
• pH value: 6-11
• Maximum immersion depth: 5 m
• Minimum immersion depth: 200 mm
• Continuous duty (with submerged motor)
• Kinematic viscosity: max 20 mm²/sec
• Density: 1000 kg/m³

Feed Water

Suitable for:

• Domestic or industrial waste water
• Dirty water with solids up to 40 mm grain size
• Liquids compatible with pump materials
• Draining rooms or emptying tanks
• Extraction of water from ponds, streams, or pits
• Rainwater collection

Electrical

• Motor: 2-pole induction motor, 50 Hz (n ≈ 2900 rpm)
• GQS (Three-phase models):
  • 230 V ± 10%
  • 400 V ± 10%
  • Cable: H07RN-F, 4G1 mm², length 10 m, without plug
• GQSM (Single-phase models):
  • 230 V ± 10%
  • Includes float switch and thermal protector
  • Incorporated capacitor
  • Cable: H07RN-F, 3G1 mm², length 10 m, with plug CEI-UNEL 47166
• General Electrical Features:
  • Insulation class F
  • Protection IP X8 (for continuous immersion)
  • Triple impregnation humidity-proof dry winding
  • Constructed in accordance with: EN 60034-1; EN 60335-1, EN 60335-2-41
• Other features on request: Other voltages, 60 Hz frequency, motor suitable for operation with frequency converter, three-phase pumps with incorporated float switch, 20 m cable length.

Mechanical / Hydraulic

• Construction: Single-impeller submersible pump with free-flow (vortex) impeller.
• Shaft Seal: Double mechanical shaft seal with interposed oil chamber, designed to protect against dry-running.
• Materials:
  • Pump casing: Cast iron GJL 200 EN 1561
  • Impeller: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
  • Motor jacket: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
  • Jacket cover: Chrome-nickel steel 1.4301 EN 10088 (AISI 304)
  • Handle: Polypropylene (with frame in AISI 304)
  • Shaft: Chrome-nickel steel 1.4305 EN 10088 (AISI 303)
  • Mechanical seal: Ceramic alumina/Carbon/NBR
  • Seal lubrication oil: Oil for food/pharmaceutical machinery
• Delivery Port: Vertical threaded delivery port, DN G 1 1/2.

Performance, Dimensions, and Weights

Performance curves, detailed dimensions, and weights for the GQS 40 series are provided in the official PDF. See the official PDF for exact tabulated values.

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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 on the project.

Official datasheet (PDF)

Lenntech datasheet mirror