SV Series

Summary

Product Identification

The Lowara e-SV™ Series comprises vertical multistage electric pumps, available in models 1, 3, 5, 10, 15, 22, 33, 46, 66, 92, and 125SV. These pumps are equipped with IE3 motors, compliant with ErP 2009/125/EC directives.

Applications

e-SV™ pumps are designed for handling water free of suspended solids across civil, industrial, and agricultural sectors. Typical applications include:

• Pressure boosting and water supply systems
• Irrigation systems
• Wash systems
• Water treatment plants
• Handling of moderately aggressive liquids, demineralised water, water and glycol
• Circulation of hot and cold water for heating, cooling, and conditioning systems
• Boiler feed
• Pharmaceutical, food & beverage industries

Operating Limits

• Delivery: Up to 160 m³/h
• Head: Up to 330 m
• Liquid Temperature:
  • Standard version: -30°C to +120°C
  • High temperature versions (H, B codes): 150°C or 180°C (N version)
• Maximum Operating Pressure (at 50°C):
  • 1, 3, 5, 10, 15, 22SV with oval flanges: 16 bar (PN16)
  • 1, 3, 5, 10, 15, 22SV with round flanges or Victaulic®, Clamp or DIN 11851 connections: 25 bar (PN 25)
  • 33, 46SV: 16, 25, 40 bar (PN 16, PN 25 or PN 40)
  • 66, 92, 125SV: 16 or 25 bar (PN 16 or PN 25)
• Hydraulic Performance: Compliant with ISO 9906:2012 - Grade 3B.
• Direction of Rotation: Clockwise, looking at the pump from the top down.
• Flow Range: From 0.7 m³/h (1SV) up to 160 m³/h (125SV).
• Maximum Head: Up to 360 m (46SV).
• Motor Power Range: From 0.37 kW (1SV, 3SV, 5SV) up to 55 kW (125SV).
• Maximum Pump Efficiency (Max η): Up to 80% (92SV).
• Minimum Efficiency Index (MEI): ≥ 0.4 (from January 2015). The benchmark for most efficient water pumps is MEI ≥ 0.70.

Mechanical / Hydraulic

General Construction

The SV pump is a non-self-priming vertical multistage pump coupled to a standard motor. The liquid end is positioned between the upper cover and the pump casing, secured by tie rods. The pump casing is available with various configurations and connection types.

Key features include:

• Liquid end made entirely of stainless steel in 1, 3, 5, 10, 15, 22 m³/h standard versions.
• Standard mechanical seal is replaceable without removing the motor from the pump (for 10, 15, 22, 33, 46, 66, 92, 125SV series).
• Seal housing chamber designed to prevent air accumulation.
• Reduced axial thrusts allow the use of standard, readily available motors.
• Pumps for G, N, F, T, R versions are certified for drinking water use (WRAS and ACS certified).
• Pump body fitted with couplings for installing pressure gauges on both suction and delivery flanges for 33, 46, 66, 92, 125SV series.
• Easy maintenance with no special tools required for assembly or disassembly.

Available Versions and Connections

1, 3, 5, 10, 15, 22SV Series:

• F: Round flanges, in-line ports, AISI 304, PN25.
• T: Oval flanges, in-line ports, AISI 304, PN16.
• R: Round flanges, delivery port above suction port (four adjustable positions), AISI 304, PN25.
• N: Round flanges, in-line ports, AISI 316, PN25.
• V, P: Victaulic® couplings, in-line ports, AISI 316 (PN25 for V, PN40 for P).
• C: Clamp couplings (DIN 32676), in-line ports, AISI 316, PN25.
• K: Threaded couplings (DIN 11851), in-line ports, AISI 316, PN25.

33, 46, 66, 92, 125SV Series:

• G: Cast iron pump casing, liquid end made entirely of stainless steel, in-line round flanges (PN16, PN25 or PN40 depending on model).
• N, P: Entirely AISI 316 stainless steel, in-line round flanges (PN16, PN25 or PN40 depending on model for N, PN40 for P).

Materials of Construction

Common materials for pump components include:

• Pump Body: Stainless steel (AISI 304, AISI 316L, ASTM CF8M) or Cast iron (ASTM Class 35).
• Impeller: Stainless steel (AISI 304, AISI 316L).
• Diffuser: Stainless steel (AISI 304, AISI 316L).
• Outer Sleeve: Stainless steel (AISI 304, AISI 316L).
• Shaft: Stainless steel (AISI 304, AISI 316, AISI 431) or Duplex stainless steel (UNS S 31803).
• Adapter: Cast iron (ASTM Class 35 or Class 25).
• Wear Ring: Technopolymer PPS.
• Shaft Sleeve and Bushing: Tungsten carbide.
• Fill / Drain Plugs: Stainless steel (AISI 304, AISI 316).
• Tie Rods: Galvanized steel or Stainless steel (AISI 431).

Mechanical Seals

Mechanical seals conform to EN 12756 (ex DIN 24960) and ISO 3069. Standard mechanical seal materials are Silicon carbide / Carbon / EPDM. Other options are available. Elastomers are typically EPDM, with FKM (FPM) and PTFE available for specific applications.

A compatibility chart for materials in contact with commonly used liquids is provided in the official PDF, detailing recommended elastomer and seal types for various concentrations and temperatures.

Electrical

Motor Specifications

• Type: Squirrel cage in short circuit, enclosed construction with external ventilation (TEFC).
• Protection: IP55.
• Insulation: Class 155 (F).
• Performance: According to EN 60034-1.
• Efficiency: IE3 efficiency level for three-phase surface motors ≥ 0.75 kW, according to EN 60034-30:2009 and IEC 60034-30-1:2014.
• Cable Gland: Metric, according to EN 50262.
• Thermal Protection: PTC included in motors from 30 to 55 kW (one per phase, 155°C).

Voltage Options

• Single-phase (50 Hz, 2-pole):
  • Power: 0.37 to 2.2 kW.
  • Standard Voltage: 220-240 V, 50 Hz.
  • Overload Protection: Built-in automatic reset up to 1.5 kW; user-provided for higher powers.
• Three-phase (50 Hz, 2-pole):
  • Power: 0.37 to 55 kW.
  • Standard Voltage:
    • 220-240/380-415 V, 50 Hz for power up to 3 kW.
    • 380-415/660-690 V, 50 Hz for power above 3 kW.
  • Overload Protection: To be provided by the user.

A wide range of other voltages for 50 Hz, 60 Hz, and 50/60 Hz operation are available upon request.

Special Features / Control Systems

• i-ALERT™: A patented system that constantly measures vibrations and signals any operating faults that could damage the pump. Available on request across the e-SV™ electric pump range.
• HYDROVAR™ Control System: e-SV™ pumps can be used with the HYDROVAR™ control system to manage pump operation based on system conditions and save energy.
  • e-SVH Models: Identified by an "H" in the product code (e.g., 3SVH13F015T), these models have an integrated HYDROVAR™ frequency converter directly on the motor.
  • Benefits: Energy savings through variable speed operation, easy installation, space-saving (no additional control panel or large diaphragm tanks needed), and advanced control functions (zero demand stop, dry running protection, cavitation protection, motor protection, automatic test starts, monitoring, multi-language LCD display, RS 485 interface).
  • Standard Motors: e-SVH units are fitted with three-phase standard TEFC motors with insulation class 155 (F) and power outputs up to 22 kW. A wall-mounted HYDROVAR™ version is available for higher power outputs (up to 45 kW).

---

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. For contractual data, always refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror (e-SV 50 Hz — OEM replaced dead SV brochure URL)