GMC, GMV

Summary

Product identification

Calpeda GMC and GMV series are close-coupled electric submersible pumps designed for sewage and drainage applications.

• GMC: Features a single-channel impeller.
• GMV: Features a free-flow (vortex) impeller.

Operating limits

• Liquid temperature: Up to 35 °C
• pH value: 6-11
• Maximum immersion depth: 10 m (with suitable cable length)
• Duty cycle: Continuous duty (with submerged motor)
• Solids grain size:
  • GMC: Up to 45 mm
  • GMV: Up to 50 mm
• Kinematic viscosity: Maximum 20 mm²/sec
• Liquid density: 1000 kg/m³

Feed water

Designed for domestic or industrial wastewater and dirty water containing solids, compatible with the pump's construction materials.

Electrical

• Motor type: 2-pole induction, 50 Hz (n ≈ 2900 rpm)
• Insulation class: F
• Protection: IP X8
• Winding: Triple impregnation, humidity-proof
• Standards: Constructed in accordance with EN 60335-2-41

Three-phase models (GMC, GMV)

• Voltage options: 230 V ± 10%; 400 V ± 10%
• Protection: 2 built-in thermal protectors (to be connected to a control box)
• Cable: 4G1,5 mm² + 2x0,5 mm², length 10 m

Single-phase models (GMCM, GMVM)

• Voltage: 230 V ± 10%
• Features: Float switch, built-in thermal protector, and built-in capacitor
• Cable: H07RN8-F, 3G1,5 mm², length 10 m, with plug (CEI - UNEL 47166)

Optional features (on request)

• Other voltages
• Frequency 60 Hz (as per 60 Hz data sheet)
• Motor suitable for operation with frequency converter

Mechanical / hydraulic

Construction features

• Shaft seal: Double mechanical shaft seal with interposed oil chamber for protection against dry-running.
• Bearings: Lower double ball bearing ensures high reliability.
• Discharge port: DN 65
• Impeller diameter: GMC Ø45, GMV Ø50

Materials

• Pump casing: Cast iron GJL 200 EN 1561
• Casing cover: Cast iron GJL 200 EN 1561
• Impeller: Cast iron GJL 200 EN 1561
• Motor housing: Cast iron GJL 200 EN 1561
• Motor cover: Cast iron GJL 200 EN 1561
• Shaft: Chrome steel 1.4016 EN 10088 (AISI 430)
• Mechanical seal (Upper): Carbon, ceramic, NBR
• Mechanical seal (Lower): Silicon carbide, silicon carbide, NBR
• Seal lubrication oil: Oil for food machinery and pharmaceutic use

Performance

Performance curves and detailed tabulated values for total head (H), flow rate (Q), motor power output (P2), and maximum power input (P1) are available for various GMC and GMV models. See the official PDF for exact tabulated values.

Dimensions and weights

Detailed dimensions, including those for duck foot coupling installations, and weights are provided for specific models. Weights range from approximately 27 kg to 32.5 kg depending on the model. See the official PDF for exact tabulated values and diagrams.

---

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 for the project.

Official datasheet (PDF)

Lenntech datasheet mirror