e-NSC

Summary

Product identification

The e-NSC Series consists of horizontal centrifugal electric pumps, 60 Hz, equipped with IE3 efficiency motors. These are centrifugal end-suction electro-pumps, primarily single-stage (except two-stage NSC2 models), featuring an axial flanged suction port, radial flanged discharge, and a horizontal shaft.

Standard construction includes cast iron casing and impeller, with options for bronze to duplex stainless steel. Pumps are designed with a back pull-out configuration for easier maintenance and are equipped with interchangeable mechanical seals.

Available pump constructions:

• NSC: Bare shaft pump
• NSCE: Extended shaft
• NSCS: Stub shaft
• NSCF: Frame mounted
• NSCC: Frame mounted with spacer coupling
• NSC2: Two impellers, extended shaft

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
• Maximum Operating Pressure:
  • Standard version with mechanical seal BQ1EGG-WA and 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
  • Cast ductile iron casing: 16 bar @ 120 °C and 15,6 bar @ 140 °C
  • Stainless steel casing: 16 bar @ 50 °C and 14,8 bar @ 140 °C
  • Duplex casing: 16 bar @ 140 °C
  • NSC2 models with mechanical seal BQ1EGG-WA and cast iron casing: 12 bar @ 110 °C and 10 bar @ 120 °C
  • For detailed pressure/temperature application limits for various mechanical seal and casing material combinations, refer to the official PDF.
• Maximum Ambient Temperature: 40 °C

Mechanical / hydraulic

• Pump Type: Centrifugal end-suction, single-stage (except NSC2 two-stage models).
• Hydraulic Performance: Compliant with ISO 9906:2012 (Grade 3B).
• Maximum Delivery:
  • Up to 715 m³/h for 2 poles range.
  • Up to 2200 m³/h for 4 poles range.
• Maximum Head:
  • Up to 155 m for 2 poles range.
  • Up to 130 m for 4 poles range.
• Nominal Pressure: 16 bar (PN12 for NSC2 models).
• Discharge Ports: DN32 to DN300.
• 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.
• Rotation: Anti-clockwise when facing the pump’s suction port.
• Counter-flanges: Not included with the pump.
• Standard Materials:
  • Volute Casing / Casing Cover: Cast iron (EN 1561 - GJL-250 / ASTM Class 35). Larger models (200-250, 200-315, 250/315) may use Cast ductile iron (EN 1563 - EN-GJS400-15 / ASTM A536 40-60-18).
  • Impeller: Stainless steel (EN 10088-1-X2CrNiMo17-12-2 / AISI 316L) for smaller sizes (32, 40, 50). Cast iron (EN 1561 - GJL-200 / ASTM Class 30) for larger sizes (65, 80, 100-315). Bronze (EN 1982 - CuSn10-C / UNS C90700) is also an option.
  • Shaft / Shaft Extension / Stub Shaft: Stainless steel (EN 10088-1-X2CrNiMo17-12-2 / AISI 316L or EN 10088-1-X17CrNi16-2 / AISI 431).
  • Wear Ring: Stainless steel (EN 10088-X5CrNi18-10 / AISI 304).
  • Impeller Lock Nut and Washer: Stainless steel (EN 10088-1-X5CrNiMo17-12-2 / AISI 316 or A4 (~ 1.4401)).
  • Impeller Key: Stainless steel (EN 10088-1-X2CrNiMo17-12-2 / AISI 316L or EN 10088 - X6CrNiMo17-12-2 / AISI 316Ti).
  • Fill and Drain Plugs: Nickel-plated brass (EN 12164-CuZn39Pb3 / CW614N) or Stainless steel (EN 10088 - X6CrNiMo17-12-2 / AISI 316Ti).
  • O-Ring: EPDM (standard version).
  • Mechanical Seal: Carbon / Silicon carbide / EPDM (standard version). Other options include SiC/Carbon/FKM, SiC/SiC/EPDM, SiC/SiC/FKM, Tungsten Carbide/Metal-impreg. carbon/EPDM, Tungsten Carbide/Metal-impreg. carbon/FKM.
  • Gasket: Asbestos-free synthetic fiber AFM 34 (for larger models).
  • Motor Adapter / Adapter / Bearing Bracket: Aluminium (EN 1706-AC-AlSi11Cu2 (Fe) / AC46100) or Cast iron (EN 1561 - GJL-250 / ASTM Class 35).
  • Fastening Bolts and Screws: Galvanized steel or Carbon steel.

Electrical

• Motor Type: Squirrel cage in short circuit, enclosed construction with external ventilation (TEFC).
• Poles: Available in 2-pole and 4-pole ranges.
• Rated Power:
  • 1,5 to 110 kW for 2-pole range.
  • 0,25 to 400 kW for 4-pole range.
• Protection Degree:
  • IP55 as motor (EN 60034-5).
  • IPX5 as electro-pump (EN 60529).
• Insulation Class: 155 (F).
• Efficiency:
  • IE3 efficiency level (three-phase from 0,75 kW).
  • Performances according to EN 60034-1.
  • IE efficiency level according to IEC 60034-30 and IEC 60034-30-1 (≥ 0,75 kW).
• Cable Gland: Metric cable gland according to EN 50262.
• Standard Voltage (60 Hz):
  • Single-phase: 1 x 220-230 V. Includes built-in automatic reset overload protection.
  • Three-phase 2-pole:
    • 3 x 220-230/380-400 V for power up to 22 kW.
    • 3 x 220/380 V for WEG motors, power from 22 to 55 kW.
    • 3 x 380/660 V for power above 55 kW.
  • Three-phase 4-pole:
    • 3 x 220-230/380-400 V for power up to 15 kW.
    • 3 x 220/380 V for power from 18,5 to 55 kW.
    • 3 x 380/660 V for power above 55 kW.
• Overload Protection: To be provided by the user for three-phase versions.
• PTC: Included as standard only for WEG motors (one per phase, 155 °C).

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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 official OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror