DWC / DWO

Summary

Product Identification

EBARA DWC Series Centrifugal Pumps (50Hz) are available in various models and connection types.

• Models: DWC 300/1.1, DWC 300/1.5, DWC 500/1.5, DWC 500/2.2, DWC 500/3.0
• Connection Types:
  • DWC-V: Victaulic connection
  • DWC-N: Threaded connection

Operating Limits

• Liquid Temperature:
  • Minimum: -15 °C
  • Maximum: +90 °C (Standard and Special mechanical seal)
  • Maximum: +110 °C (Optional mechanical seal)
• Maximum Working Pressure: 0.8 MPa

Feed Water

• Type of Liquid: Moderate aggressive fluids, glycol solutions, liquids suitable for industrial washing equipment. Not suitable for drinking water. For other industrial fluids, contact Technical Customer Service.
• Impurities: Liquids containing impurities.
• Test Conditions for Curves: Measurements were carried out with clean water at 20 °C of temperature and with a kinematic viscosity of 1 mm²/s (1 cSt).

Electrical

• Motor Type: Electric - TEFC, Three Phase
• Efficiency Level (Reg. 640/2009):
  • IE2 from 1.1 kW up to 3.0 kW
  • IE3 from 1.1 kW up to 3.0 kW
• Number of Poles: 2
• Rotation Speed: ≈2800 min⁻¹
• Insulation Class: F
• Protection Degree (CEI EN 60034-5): IP 55
• Power Rating: 1.1 ÷ 3.0 kW (1.5 ÷ 4.0 HP)
• Frequency: 50 Hz
• Voltage: 230/400 V ±10%
• Overload Protection: User provide
• Cable Entry Dimensions: PG11 - PG13.5 – M20x1.5
• Motor Data: Detailed motor data, including input power, efficiency at various loads (50%, 75%, 100%), full load current, and locked rotor current for 230 V and 400 V, are available in the official PDF for each pump type and IE2/IE3 motor configuration. See the official PDF for exact tabulated values.

Mechanical / Hydraulic

• Pump Type: Centrifugal, closed impeller.
• Shaft Seal Type: Mechanical seal.
• Bearing Type: Sealed ball bearing.
• Pipe Connection:
  • Suction: Victaulic connection Ø 2” (60.3 mm) for DWC-V models; G 2” for DWC-N models.
  • Discharge: Victaulic connection Ø 2” (60.3 mm) for DWC-V models; G 2” for DWC-N models.
• Materials of Construction:
  • Casing: EN 1.4301 (AISI 304)
  • Impeller: EN 1.4301 (AISI 304)
  • Casing Cover: EN 1.4301 (AISI 304)
  • Shaft Seal (Standard): Ceramic/Carbon/EPDM
  • Shaft: EN 1.4301 (AISI 304) (Wet extension)
  • Bracket: Aluminium
  • Motor Casing Material: Aluminium
  • Base Material/Motor Support: Aluminium
• Applicable Standard of Test: ISO 9906:2012 Grade 3B.
• Impeller Diameters:
  • DWC 300/1.1: 133 mm
  • DWC 300/1.5: 148 mm
  • DWC 500/1.5: 125 mm
  • DWC 500/2.2: 140 mm
  • DWC 500/3.0: 148 mm
• Performance Range: Performance charts detailing total head (H) in meters versus capacity (Q) in l/min and m³/h are available in the official PDF. The recommended working range is indicated by continuous curves, while dotted curves are a guide. Pumps should not be used at a flow rate below 10% of the best efficiency point to avoid overheating. See the official PDF for exact tabulated values and performance curves.
• Mechanical Seal Options: Various mechanical seal configurations (Standard, H, HS, HW, HSW, Q1AVGG, VAEGG, Q1U3EGG, U3BEGG, AQ1EGG) are available with different material combinations for rotary seal ring, stationary seal ring, O-rings, bellows, spring, and frame. See the official PDF for detailed material specifications.
• Bearings: Specific ball bearing types (e.g., 6204 2RSH, 6204-ZZ C3) are used for the pump side and fan side, varying by pump type and motor efficiency (IE2/IE3). See the official PDF for exact tabulated values.
• Thermal Insulation: Insulation for the pump casing and coupling is available as standard or on request for certain models and connection types. See the official PDF for specific configurations.
• Dimensions and Weight: Detailed dimensions (B, C, H3 in mm) and weights (kgf) for DWC-V (Victaulic connection) and DWC-N (Threaded connection) models are provided in the official PDF. See the official PDF for exact tabulated values.
• Packing: Packing dimensions (X, Y, Z in mm) and weights (kgf) are provided in the official PDF. See the official PDF for exact tabulated values.
• Noise Data:
  • Sound Pressure Level (LpA): <70 dB(A)
  • Tolerance: ± 2.5 dB
  • Measurement: Mean value of several measures at 1m distance around the pump.

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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 on the project.

Official datasheet (PDF)

Lenntech datasheet mirror