Aspri

Summary

Product identification

The Aspri 15/25 MB and Aspri 35N/45N series are quiet-running multi-stage centrifugal pumps designed for surface horizontal installation.

Applications

• Aspri 15/25 MB: Suitable for clean water in domestic applications, irrigation, and hydropneumatic sets.
• Aspri 35N/45N: Suitable for clean water in domestic and industrial applications, irrigation, and hydropneumatic sets.

Operating limits

• Maximum suction lift: 9 m
• Maximum liquid temperature: 40 °C

Electrical

The pumps feature an asynchronous, two-pole motor with:

• IP 44 protection
• Class F insulation
• Continuous operation
• Efficiency IE2
• Aspri 15/25 MB models include single-phase with built-in thermal protection.

Materials

Aspri 15/25 MB Series

• Pump body and impellers: stainless steel AISI 304
• Motor shaft: stainless steel AISI 420
• Diffusers: technopolymer
• Suction and discharge connections: brass
• Mechanical seal: graphite and alumine
• Motor housing: aluminium
• O-rings: EPDM and NBR
• Built-in self-priming valve

Aspri 35N/45N Series

• Pump body and impellers: stainless steel AISI 304
• Diffusers: technopolymer
• Suction and discharge connections: cast iron
• Mechanical seal: graphite and alumine
• O-rings: EPDM and NBR
• Built-in self-priming valve
• Aspri 35N: Motor shaft in stainless steel AISI 420 and steel F-114; motor housing in aluminium L-2521.
• Aspri 45N: Motor shaft in stainless steel AISI 420; motor housing in aluminium L-2521.

Hydraulic performance

Hydraulic performance tables are provided for various models, detailing current (I), input power (P1), output power (P2 in kW and HP), capacitor size (µF for single-phase models), flow rates (l/min and m³/h), and head (mwc). Performance curves at 2900 rpm are also available.

See the official PDF for exact tabulated values.

Mechanical / Hydraulic

Dimensions (A-J, K, L, M) and weights (Kg) are provided for all models.

• Aspri 15 MB Series:
  • Models: Aspri 15 3 MB, Aspri 15 4 MB, Aspri 15 5 MB.
  • Weights range from 9.2 Kg to 11 Kg.
  • Suction and discharge connections: 1".
• Aspri 25 MB Series:
  • Models: Aspri 25 3 MB, Aspri 25 4 MB, Aspri 25 5 MB.
  • Weights range from 13.5 Kg to 17.2 Kg.
  • Suction and discharge connections: 1".
• Aspri 35N Series:
  • Models: Aspri 35 3, Aspri 35 4, Aspri 35 5, Aspri 35 6.
  • Weights range from 18.2 Kg to 23.7 Kg.
  • Suction and discharge connections: 1 1/4".
• Aspri 45N Series:
  • Models: Aspri 45 3, Aspri 45 4, Aspri 45 5.
  • Weights range from 18.6 Kg to 25.3 Kg.
  • Suction connection: 1 1/2"; discharge connection: 1 1/4".

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 for the project.

Official datasheet (PDF)

Lenntech datasheet mirror