e-NSC

Summary

Product identification

The e-NSC Series consists of horizontal centrifugal electric pumps, compliant with ErP 2009/125/EC and equipped with IE3 motors for 50 Hz operation. The document revision is F, dated 03/2016.

These pumps are centrifugal end-suction electro-pumps, primarily single-stage (except for two-stage NSC2 models), featuring an axial flanged suction port, radial flanged discharge, and a horizontal shaft.

Available constructions include:

• Extended shaft (NSCE): Close-coupled via an adaptor bracket, with the impeller keyed directly to a special motor shaft extension.
• Frame mounted (NSCF): Flexible-coupled with a bracket, support, flexing coupling (spacer on demand), aligning, and anchoring base.
• Stub shaft (NSCS): Rigid-coupled with a bracket, adaptor, and a rigid coupling keyed to the standard motor shaft extension.
• Bare shaft pump (NSC): Version without a driver, suitable for coupling with a standard electric motor.
• Two impellers extended shaft (NSC2)

Discharge ports range from DN32 to DN300. For NSC2 models, suction is 2” and discharge is 1¼”.

Operating limits

• Fluid temperature range:
  • Standard version (with mechanical seal BQ1EGG-WA and EPDM gasket): -25 to +120 °C.
  • Versions on request (depending on mechanical seal and gasket): -20* or -25 to +120 or +140 °C. (*Fluoro-elastomer: FPM (old ISO), FKM (ASTM & new ISO)).
• Maximum operating pressure:
  • Standard version (mechanical seal BQ1EGG-WA, cast iron casing): 16 bar @ 90 °C and 10 bar @ 120 °C.
  • Version with other mechanical seal and cast iron casing: 16 bar @ 120 °C and 14.9 bar @ 140 °C.
  • Version with cast ductile iron casing: 16 bar @ 120 °C and 15.6 bar @ 140 °C.
  • Version with stainless steel casing: 16 bar @ 50 °C and 14.8 bar @ 140 °C.
  • Version with duplex casing: 16 bar @ 140 °C.
  • NSC2 models (mechanical seal BQ1EGG-WA, cast iron casing): 12 bar @ 110 °C and 10 bar @ 120 °C.
  • See the official PDF for more detailed pressure/temperature application limits for specific mechanical seal and casing material combinations.
• Maximum ambient temperature: 40 °C.
• Altitude: ≤ 1000 m Above Sea Level.

Electrical

• Motor type: Squirrel cage in short circuit enclosed construction with external ventilation (TEFC).
• Poles: 2-pole and 4-pole ranges.
• Protection degree: IP55 as motor (EN 60034-5), IPX5 as electro-pump (EN 60529).
• Insulation class: 155 (F).
• Efficiency level: IE3 efficiency level for three-phase motors ≥ 0.75 kW, according to EN 60034-30:2009 and EN 60034-30-1:2014.
• Standard voltage (50 Hz):
  • 1 x 220-240 V for power up to 2.2 kW.
  • 3 x 220-240/380-415 V for power up to 3 kW.
  • 3 x 380-415/660-690 V for power above 3 kW.
• Single-phase motors (2 poles, 50 Hz):
  • Rated power from 1.1 to 2.2 kW.
  • Built-in automatic reset overload protection.
• Three-phase motors (2 poles, 50 Hz):
  • Rated power from 1.1 to 200 kW.
  • Overload protection to be provided by the user.
  • PTC included as standard only for WEG motors (one per phase, 155 °C).
• Three-phase motors (4 poles, 50 Hz):
  • Rated power from 0.25 to 355 kW.
• Electrical performances: According to EN 60034-1.
• Cable gland: Metric, according to EN 50262.

Mechanical / hydraulic

• Maximum delivery:
  • Up to 640 m³/h for 2 poles range.
  • Up to 1900 m³/h for 4 poles range.
• Maximum head:
  • Up to 154 m for 2 poles range.
  • Up to 100 m for 4 poles range.
• Hydraulic performance: Compliant with ISO 9906:2012 (Grade 3B).
• Minimum efficiency index (MEI): Equal to or higher than 0.4, compliant with Regulation (EU) No 547/2012.
• Rotation: Anti-clockwise when facing the pump’s suction port.
• Counter-flanges: Pump does not include counter-flanges.
• Connection dimensions: According to EN 733 for models 32-125/200, 40-125/250, 50-125/250, 65-125/315, 80-160/315, 100-200/400, 125-250/400, 150-315/400.
• Standard materials:
  • Volute casing: Cast iron EN 1561 - GJL-250 (JL1040) / ASTM Class 35. For larger models (200-250, 200-315, 250/315, 150-500, 200-400, 200-500, 250-400, 250-500, 300-350, 300-400, 300-450) also Cast ductile iron EN 1563 - EN-GJS400-15 (EN-JS1030) / ASTM A536 40-60-18.
  • Casing cover: Cast iron EN 1561 - GJL-250 (JL1040) / ASTM Class 35. For larger models, also Cast ductile iron EN 1563 - EN-GJS400-15 (EN-JS1030) / ASTM A536 40-60-18.
  • Impeller:
    • Sizes 32, 40, 50: Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) / AISI 316L.
    • Sizes 65, 80: Cast iron EN 1561 - GJL-200 (JL1030) / ASTM Class 30. Also available in Bronze EN 1982 - CuSn10-C (CC480K) / UNS C90700.
    • Other sizes: Cast iron EN 1561 - GJL-200 (JL1030) / ASTM Class 30 or Bronze EN 1982 - CuSn10-C (CC480K) / UNS C90700.
  • Shaft extension/Stub shaft/Shaft: Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) / AISI 316L. For larger sizes (65-250, 80-200, 80-250, and 50-315 up to 300-450), Stainless steel EN 10088 - X17CrNi16-2 (1.4057) / AISI 431.
  • Wear ring: Stainless steel EN 10088-X5CrNi18-10 (1.4301) / AISI 304.
  • Impeller lock nut and washer: Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) / AISI 316. For larger models, A4 (~1.4401).
  • Impeller key: Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) / AISI 316L. For larger models, EN 10088 - X6CrNiMo17-12-2 (1.4571) / AISI 316Ti.
  • Fill and drain plugs: Nickel-plated brass EN 12164-CuZn39Pb3 (CW614N). For larger models, Stainless steel EN 10088 - X6CrNiMo17-12-2 (1.4571) / AISI 316Ti.
  • O-Ring: EPDM (standard version).
  • Mechanical seal: Carbon / Silicon carbide / EPDM (standard version).
  • Motor adapter: Aluminium EN 1706-AC-AlSi11Cu2 (Fe) (AC46100) or Cast iron EN 1561 - GJL-250 (JL1040) / ASTM Class 35.
  • Volute casing fastening bolts and screws: Galvanized steel. For larger models, Carbon steel.
  • Gasket: Asbestos-free synthetic fiber AFM 34 (for larger models).
  • Bearing bracket: Cast iron EN 1561 - GJL-250 (JL1040) / ASTM Class 35 (for larger models).

Model Availability

The e-NSC series offers a wide range of models with various power ratings and configurations (NSC, NSCE, NSCS, NSCF, NSCC, NSC2) for both 2-pole and 4-pole operation at 50 Hz. For a comprehensive list of available models and their specific power ratings, please refer to the official PDF datasheet.

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. For contractual purposes, all data must be verified against the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror