DW / DW VOX / DWF / DW VOXF / DWFZ / DW VOXFZ

Summary

Product Identification

This document describes EBARA SUBMERSIBLE SEWAGE PUMPS from the DW-DW VOX series, operating at 50Hz. The product line includes DW, DW VOX, DWF, DW VOXF, DWFZ, and DW VOXFZ models.

Operating Limits

• Liquid Handled: Dirty water, sewage water
• Max Temperature: 40 °C
• Max Solids Size: 50 spherical mm
• Maximum Immersion: 7 m
• Minimum Flow Rate: Pumps should not be used at a flow rate below 10% of the best efficiency point to avoid the risk of overheating.

Mechanical / Hydraulic

• Impeller Type:
  • DW: Single channel
  • DW VOX: Vortex
• Shaft Seal Type: Double mechanical seal
• Bearing Type: Sealed ball bearing
• Pipe Connection:
  • Suction-Flange: 50 Open mm
  • Discharge-Flange:
    • DW: G 2 UNI ISO 228
    • DWF: Flange DN 50
• Lubricating Liquid: White mineral oil: Esso Marcol 152 (385 cc)
• Applicable Standard of Test: ISO 9906:2012 - Grade 3B

Materials of Construction

• Casing: AISI 304
• Impeller: AISI 304
• Casing Cover: AISI 304
• Seal Cover: AISI 304
• Shaft: AISI 303 (wet extension)
• Shaft Seal:
  • Pump side: SiC/SiC/NBR
  • Motor side: Carbon/Ceramic/NBR
• Mechanical Seal Components:
  • Rubber cup: NBR
  • Seat: Ceramic, Silicon carbide
  • Seal face: Carbon, Silicon carbide
  • Bellow: NBR
  • Spring: AISI 304

Bearings

• Pump side: 6303 ZZ
• Cover side: 6203 ZZ

Electrical

• Motor Type: Submersible dry type
• Number of Poles: 2
• Rotation Speed: ≈ 2800 min⁻¹
• Insulation Class: F
• Protection Degree: IP X8
• Frequency: 50 Hz

Power and Voltage

• Single Phase:
  • Voltage: 230 ±10% V
  • Power Rating: 0.55 ÷ 1.1 kW (0.75 ÷ 1.5 HP)
  • Capacitor: Built in
  • Overload Protection: Built in
  • Float Switch: Optional
  • Float Switch Cable Material: H07RN-F
  • Float Switch Cable Size: 3G1
  • Power Cable Length: 10 m
  • Power Cable Material: H07RN-F
  • Power Cable Size: 3G1 (up to 0.55 kW), 3G1.5 (from 0.75 to 1.1 kW)
• Three Phase:
  • Voltage: 400 ±10% V
  • Power Rating: 0.55 ÷ 2.2 kW (0.75 ÷ 3 HP)
  • Capacitor: Not applicable
  • Overload Protection: Provided by the user
  • Float Switch: Not applicable
  • Power Cable Length: 10 m
  • Power Cable Material: FG50K
  • Power Cable Size: 4G1.5 + 2x0.5

Motor Data

Detailed tables for Input Power, Capacitor, Full Load Current, and Locked Rotor Current are available for specific DW and DW VOX models (75 M, 75, 100 M, 100, 150 M, 150, 200, 300). See the official PDF for exact tabulated values.

Performance Range

Performance tables provide total manometric head (H) in meters for various flow rates (Q) in l/min and m³/h across different pump types and power ratings. See the official PDF for exact tabulated values and performance curves.

Dimensions and Weight

Dimensions (H in mm) and weights (kgf) are provided for various pump types (DW, DW VOX, DWF, DW VOXF, DWFZ, DW VOXFZ) in both automatic (with float switch) and manual configurations, for single and three-phase models. Packing dimensions (X, Y, Z in mm) and weights (kgf) are also listed. See the official PDF for exact tabulated values.

Installation

Float switch ON/OFF dimensions are provided for specific pump models:

• 75 MA: A = 460 mm (ON), B = 250 mm (OFF)
• 100 MA / 150 MA: A = 470 mm (ON), B = 260 mm (OFF)

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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