DPNL In-line centrifugal pump

Summary

Product Identification

• Series: DPNL
• Type: Vertical centrifugal in-line pumps, single-stage, non-self-priming, volute type.
• Manufacturer: DP-Pumps
• Compliance:
  • EN 809/A1
  • Machine Directive 2006/42/EC
  • EMC Directive 2004/108/EC
  • Ecodesign Directive 2009/125/EC
  • Regulation 547/2012 (for water pumps with a maximum shaft power of 150 kW)
  • DIN 24255 (within nominal capacity range)

Operating Limits

• Liquid Temperature: Up to 90°C
• Discharge Flange Pressure: Must not exceed 10 bar. Special orders are necessary for applications with higher pressures.
• Local Ambient Room Temperature: If exceeding +40°C, suitable ventilation must be provided.
• Minimum Efficiency Index (MEI): See pump label. The reference value MEI of a water pump with the best efficiency is = 0.70. MEI refers to the full impeller diameter.
• Warranty Period: 24 months after delivery.

Feed Water

• Liquid Compatibility: Clean or mildly impure, non-abrasive, and not containing large solid particles or fibre.
• Performance Curve Basis: Valid for water with density (ρ) = 1 kg/dm³ and viscosity (ν) = 1 cst. Consult DP-Pumps for liquids with different densities and viscosities.

Electrical

• Motor Type: Hermetic, 3 phase, totally enclosed, fan cooled, squirrel caged, IM 3611 V 18 type electrical motor.
• Motor Compliance: DIN EN 60034-1, IEC, VDE and standards.
• Isolation Class: F
• Protection Class: IP 54-IP 55
• Frequency: 50 Hz.
• Running Type: S1
• Start-up Type:
  • 3x380 V(Y) up to 4 kW
  • More than 4 kW, 3x380(Δ) + (Y/Δ)
• Motor Connection Diagram (Voltage / Connection):
  • 230/400V: Delta
  • 400V: Star, Delta
  • 3 x 230V: Delta
  • 3 x 400V: Star, Delta

Mechanical / Hydraulic

• Pump Design: Single stage, non-self-priming in-line centrifugal pumps, close coupled.
• Impeller: Closed radial type, dynamically balanced. Axial force balanced with back wear ring and balance holes.
• Shaft: Designed to be dismountable without moving suction and discharge pipes and volute.
• Bearings: Rolling bearings are not used in DPNL type pumps. Motor bearing is sufficient for axial and radial forces. Motor bearings are provided with lifelong heat resistant grease.
• Seals: Various mechanical seal types (e.g., bellow type, spring actuated type) are used for sealing in standard production.
• Coupling: Clamped type rigid coupling, provided with a coupling guard in accordance with EN 294.
• Mounting: Mounted to the ground by the foots of the volute casing.
• Flanges:
  • Suction Flange: DIN 2533-PN 16, DN 40-DN 250
  • Discharge Flange: DIN 2533-PN 16, DN 40-DN 250
• Performance Range:
  • Capacity: 2-700 m³/hour
  • Head: 2-70 m
  • Speed: 900-3600 rpm
• Pump Dimensions and Weights: Detailed tables for pump dimensions (Lm, W, H, A, B, H1, f, Nominal Diameter) and weights (Kg) are available in the official PDF. See the official PDF for exact tabulated values.
• Expected Noise Values: Tables for Sound Pressure Level (dB) at 1450 rpm/min and 2900 rpm/min, based on motor power (KW), are available in the official PDF. These values are maximum values, measured at 1 m directly above the driven pump in a free space above a sound reflecting surface, without a protective sound hood. The surface noise pressure level in dB(A) complies with TS EN ISO 20361. 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 original OEM PDF. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

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