EVM / EVMG / EVML / EVMS / EVMSL / EVMSL3 / EVMSL5 / EVMSL10 / EVMSL15 / EVMSL20 / EVMSG1 / EVMSG3 / EVMSG5 / EVMSG10 / EVMSG15 / EVMSG20

Summary

Product Identification

The EVM series consists of Vertical Multistage Pumps, including EVMS 1-3-5-10-15-20 and EVM 32-45-64 models. These are non-self-priming, vertical multistage in-line, centrifugal pumps designed for 50 Hz operation.

The EVMS models are available in 1, 3, 5, 10, 15, and 20 m³/h nominal flow sizes. Versions include:

• EVMS: AISI 304 version
• EVMSL: AISI 316 version
• EVMSG: Cast Iron version

Typical Applications

Industry

• Water treatment: Reverse osmosis, ultra-filtration, water purification, micro-filtration, softening, ionizing and demineralising systems, swimming pools, separators.
• Boiler feeding: Steam systems, condensate systems.
• Wash and clean: Vehicle washing systems, industrial part washing, laundry systems, supply of liquids with acids and bases, supply of chemical liquids.
• Chilling: Handling of refrigerants for cooling, thermal control systems, industrial cooling, laser cooling.
• Machine tooling: Cooling lubricant supply for tooling machines.
• Pressure boosting: For industrial use.
• Food & beverage: Food washing systems, bottle wash systems.
• Pharmaceutical industries.
• Marine applications: Freshwater, deckwash, high fog and fire fighting on ships.

Building Service

• Pressure boosting: For buildings, high-rise buildings/hotels.
• Sprinkler systems.
• Fire fighting systems: Jockey pumps.
• District heating.
• Heat exchangers / fan heaters.
• Air conditioning systems.
• Heating systems.

Water Supply

• Water treatment: Water treatment plants filtration, water treatment plants transfer.
• Pressure boosting: Transfer from water treatment plants (mains).
• Irrigation: Golf course / sport fields irrigation.
• Agriculture: Sprinkler irrigation, drip irrigation.

Operating Limits

• Maximum operating pressure: 16 bar (1.6 MPa) or 25 bar (2.5 MPa).
• Liquid temperature range: -30°C to +140°C.
• Performance curves are based on clean water at 20°C with a kinematic viscosity of 1 mm²/s (1 cSt).
• Pumps should not be operated at a flow rate below 10% of the best efficiency point to prevent overheating.

Mechanical / Hydraulic

Pump Type

• Non-self-priming, vertical multistage in-line, centrifugal pumps.

Materials (for EVMS(.)1-3-5-10-15-20 models)

• Impeller: EN 1.4301 (AISI 304), EN 1.4401 (AISI 316)
• Intermediate casing: EN 1.4301 (AISI 304), EN 1.4401 (AISI 316)
• Liner ring: EN 1.4301 (AISI 304) + PPS, EN 1.4401 (AISI 316) + PPS
• Bottom casing: Cast Iron, EN 1.4301 (AISI 304), EN 1.4401 (AISI 316)
• Casing cover: EN 1.4301 (AISI 304), EN 1.4401 (AISI 316)
• Shaft: EN 1.4301 (AISI 304), EN 1.4404 (AISI 316L), EN 1.4462 (AISI 329A) (material depends on model)
• Shaft sleeve bearing: Tungsten carbide
• O-ring: EPDM, FPM
• Outer casing: EN 1.4301 (AISI 304), EN 1.4404 (AISI 316L)
• Motor Bracket: Cast Iron
• Tie rod: Galvanized steel 6.8 strength class ISO 898/1
• Coupling: Die cast aluminium (up to 4 kW), Cast Iron (from 5.5 kW)
• Base: Cast Iron, Die cast aluminium

Shaft Seal

• Type: Cartridge Unbalanced type (up to 16 bar), Cartridge Balanced type (from 16 to 25 bar).
• Materials:
  • Rotating Part: SiC (Q1), SiC with graphite (Qg)
  • Stationary Part: Carbon (B), SiC (Q1)
  • Elastomers: EPDM (E), FPM (V)
  • Compression spring/Collar: AISI 316 (G)
• Conforms to EN12756 (ex DIN 24960).
• Dimensions: See the official PDF for exact tabulated values for d1, d2, d3, d4, l for EVMS 1/3/5 and EVMS 10/15/20 models.

Piping Connection Options

• Oval flange
• Round flange (DIN)
• Loose round flange (DIN)
• Victaulic®
• Clamp connection

Efficiency

• High pump efficiency classified in MEI > 0.7 for all models (EVMS(.)1, EVMS(.)3, EVMS(.)5, EVMS(.)10, EVMS(.)15, EVMS(.)20).
• Information on benchmark efficiency is available at www.europump.org (Ecodesign section) and www.europump.org/efficiencycharts (refer to "Multistage Vertical 2900 rpm").

Performance Data

• Selection charts are available for EVMS(.)1-3-5 and EVMS(.)10-15-20 models, providing total manometric head (H) in meters at various capacities (Q) in l/min and m³/h, corresponding to different motor powers (kW/HP) and maximum working pressures. See the official PDF for exact tabulated values.
• Dimensional sketches and weights are provided for specific models (e.g., EVMS(L)1, EVMSG1, EVMS(L)3). See the official PDF for exact tabulated values.

Electrical

Motor

• Commercial motors can be fitted.
• IE3 motor provided for over 0.75 kW.
• PTC sensor available from 1.5 kW motor.

Specifications

• Frequency: 50 Hz
• Phase: Single Phase, Three Phase
• Rotation speed: ~ 2900 min⁻¹
• Power rating:
  • Single Phase: 0.37 ÷ 2.2 kW (0.5 ÷ 3.0 HP)
  • Three Phase: 0.37 ÷ 18.5 kW (0.5 ÷ 25 HP)
• Voltage:
  • Single Phase: 230 ± 10% V
  • Three Phase (up to 4 kW): 230/400 ± 10% V
  • Three Phase (above 5.5 kW): 400/690 ± 10% V
• Type: Electric - TEFC
• Efficiency Level: IE3 above 0.75 kW.
• No. of poles: 2
• Protection degree: IP 55
• Insulation Class: F (temperature rise class B)
• Thermal Protection: PTC is available for 1.5 kW and above.
• Casing Material: Aluminium
• Flange mount (IEC motor): IM B14 (up to 4 kW), IM B5 (above 5.5 kW)

Certifications

• Drinking water approval: DM174/2004, ACS, KTW (KTW is certified for components), WRAS.
• Atmospheres explosibles approval: ATEX 2014/34/UE (for EVMSG models).
• Conform to the provisions of the European directives.

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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 official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror