JES / JESM

Summary

Product identification

• Product Line: Centrifugal Pumps
• Model Series: JES / JESM
• Manufacturer: EBARA PUMPS EUROPE S.p.A.
• Frequency: 50 Hz

Operating limits

• Max liquid temperature: 45 °C
• Maximum working pressure: 0.6 MPa
• Maximum suction depth: 8 m
• Rotation speed: ≈ 3000 min⁻¹
• Minimum flow rate: Pumps should not be used at a flow rate below 10% of best efficiency point to avoid overheating.
• Test Standard: ISO 9906:2012 – Grade 3B

Feed water

• Type of liquid: Clean water
• Test conditions: Measurements were carried out with clean water at 20°C of temperature and with a kinematic viscosity of ν = 1 mm²/s (1 cSt).

Electrical

• Motor Type: Electric – TEFC
• Number of Poles: 2
• Insulation Class: Class F
• Protection degree: IP 44 (standard), IP 55 (on request)
• Power rating: 0.37 ÷ 0.6 kW (0.5 ÷ 0.8 HP)
• Frequency: 50 Hz
• Voltage:
  • Single Phase: 230 ±10% V
  • Three Phase: 230/400 ±10% V
• Capacitor: Built in (Single Phase), Not applicable (Three Phase)
• Overload protection: Built in (Single Phase), Provided by the user (Three Phase)
• Dimensions of cable entry: PG 11
• Motor Data: See the official PDF for exact tabulated values for capacitor, input power, locked rotor current, and full load current for specific models.

Mechanical / hydraulic

• Pump Type: Closed centrifugal type
• Impeller: PPO mod. Glass fibre reinforced
  • JES 5, JES 6: Impeller diameter = 104 mm
  • JES 8: Impeller diameter = 110 mm
• Shaft seal type: Mechanical seal
• Bearing: Sealed ball bearing (6201 ZZ for both pump and fan side)
• Pipe Connection:
  • Suction: G 1 inch UNI ISO 228
  • Discharge: G 1 inch UNI ISO 228
• Materials:
  • Casing: AISI 304
  • Impeller: PPO mod. Glass fibre reinforced
  • Casing cover: AISI 304
  • Shaft seal: Ceramic/Carbon/NBR
  • Shaft: AISI 303 (Wet extension)
  • Ejector: PPO mod. glass fibre reinforced
  • Bracket: AISI 304
  • Diffuser: PPO mod. glass fibre reinforced
  • Motor casing material: AISI 304
  • Motor support: AISI 304
• Dimensions and Weight: See the official PDF for exact tabulated values for pump dimensions (A, L) and packing dimensions (X, Y, Z) and weight for specific models.
• Installation Notes: It is recommended to install a foot valve or check valve at the suction pipe to prevent air breathing when the pump stops, and to support both suction and delivery pipes to prevent the pump from leaning.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in 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