Calpeda NCE EI Energy Saving Circulating Pumps

The Calpeda NCE EI 32-60 is a highly efficient, energy-saving variable speed circulating pump designed for small-scale domestic heating and underfloor systems. Engineered with a permanent magnet synchronous motor and integrated onboard inverter, this compact circulator intelligently adjusts to system demands—optimizing flow and reducing power consumption without compromising performance.

Housed in a robust cast iron body, the NCE EI features threaded ISO 228 ports (G1, G1½, G2) and delivers quiet, long-lasting operation even in tight installation spaces. This model is perfect for radiators, floor heating loops, and other closed-loop hot water systems where efficiency, compactness, and plug-and-play usability are key.

KEY FEATURES

• Compact design for tight installations
• Energy-efficient permanent magnet motor with variable speed control
• Self-cleaning patented square chamber to prevent rotor blockage
• Multiple operating modes:
  • 2 constant pressure curves (I–II)
  • 2 proportional pressure curves (1–2)
  • Manual fixed-speed mode
• Cataphoresis-treated hydraulic components for enhanced corrosion resistance
• Quick-connect power plug for easy installation
• Ultra-quiet operation (≤ 43 dB[A])

PERFORMANCE

• Max Flow Rate: 58 L/min (4.2 m³/h)
• Max Head: 6.8 m (68 kPa)
• Power Consumption: 3–56W (0.003–0.056 kW)
• Energy Efficiency Index (EEI): ≤ 0.20
• Operating Modes: Fixed, proportional, and constant pressure

OPERATING CONDITIONS

• Liquid temperature: +2°C to +95°C
• Ambient temperature: 0°C to +40°C
• Max working pressure: 6 bar
• Max glycol content: 40%
• Min suction pressure at 95°C: 0.5 bar
• Storage conditions: -20°C to +70°C (max. RH 95% at 40°C)

CONSTRUCTION

Energy saving variable speed circulating pump driven by a permanent magnet synchronous motor (pm) controlled by on board inverter.

APPLICATION

• Small domestic heating systems- Floor heating systems

UNION KITS

• Cast Iron (G1 1-2 - G1)
• Brass (G2 - G 1 1/4)