SVI Series

Summary

Product identification

• Series: SVI Series (models 2, 4, 8, 16, 33, 46, 66, 92)
• Type: Submersible Vertical Electric Pumps
• Motors: Equipped with IE2/IE3 motors complying with Regulation (EC) no. 640/2009
• Frequency: 50 Hz
• Document Revision: Cod. 191002451 Rev.B Ed.06/2012

Applications

• Pumping of coolants, lubricants, and condensate
• Machine tools, welders, engine test stands
• Cooling systems
• Washing systems
• Boosters
• Market Sectors: Industrial, Civil

Operating limits

• Delivery: Up to 120 m³/h
• Head: Up to 240 m
• Liquid Temperature:
  • -10°C to +90°C for S and N versions with coupling
  • -10°C to +60°C for close-coupled E versions
• Maximum Ambient Temperature: +40°C
• Minimum Suction Liquid Level:
  • 25 mm for SVI 2-4-8-16 models
  • 80 mm for SVI 33-46-66-92 models
• Liquids Handled: Clean liquids free of abrasive substances or fibres, with kinematic viscosity up to 37 mm²/sec (with suitably sized motor).
• Maximum Pressure: Ranges from 6 bar to 26 bar depending on the model. See the official PDF for exact tabulated values.

Mechanical / hydraulic

• Pump Type: Vertical-axis pump with submersible body.
• Installation: Standard vertical position; horizontal installation on request.
• Rotation: Clockwise looking at the pump from the top down (marked with an arrow).
• Suction: Base in the suction side with a filter to prevent damage from solids.
• Mechanical Seals:
  • SVI 2, 4 (E version): Ceramic/Carbon/FPM.
  • SVI 2, 4, 8, 16 (S, N versions): Silicon Carbide/Carbon/FPM.
  • SVI 33, 46, 66, 92 (S, N versions): Balanced mechanical seal (Silicon Carbide/Carbon/FPM as standard), replaceable without removing the motor.
  • Mechanical seals comply with EN 12756 (ex DIN 24960) and ISO 3069 for S and N versions.
• Tank Coupling Flange: Complies with EN 12157 (ex DIN 5440) for SVI 2-4 models.
• Delivery Port: For SVI 33-46-66-92 models, the delivery port can be coupled to counter-flanges according to EN 1092.
• Performance Testing: Tested in compliance with ISO 9906 Annex A.
• Hydraulic Performance Range (50 Hz):
  • Max efficiency flow: 3 m³/h to 92 m³/h
  • Flow range: 1.2÷4.2 m³/h to 45÷120 m³/h
  • Max pump efficiency: 42% to 79.5%
  • Detailed hydraulic performance tables for specific models are available in the official PDF.

Electrical

• Motor Type: 2-pole motors with squirrel cage in short circuit, enclosed construction with external ventilation.
• Efficiency: Standard supplied IE2/IE3 three-phase surface motors ≥ 0.75 kW, compliant with Regulation (EC) no. 640/2009 and IEC 60034-30.
• Protection: IP55.
• Insulation: Class 155 (F).
• Performance: According to EN 60034-1.
• Standard Three-phase Voltage (50 Hz):
  • For power up to 3 kW: 220-240/380-415 V.
  • For power above 3 kW: 380-415/660-690 V.
• Cable Gland: Standard passage dimensions according to EN 50262 (metric thread).
• Overload Protection: To be provided by the user.
• Motor Noise: Mean sound pressure levels (LpA) measured at 1 meter in a free field according to the A curve (ISO 1680 standard) are generally <70 dB, with some models up to 73 dB.

Materials of construction

• SVI 2, 4 (E versions): Adapter in Cast iron (EN 1561-GJL-200 / ASTM Class 25); Impeller, Diffuser, Shaft, Screws in Stainless steel (AISI 304); Outer sleeve, Strainer, Tie rods in Stainless steel (AISI 316); Suction base in Stainless steel (ASTM CF8M / AISI 316 cast); Shaft sleeve in Tungsten carbide; Elastomers in FPM.
• SVI 2, 4 (EN versions): Adapter, Suction base in Stainless steel (ASTM CF8M / AISI 316 cast); Impeller, Diffuser, Outer sleeve, Tie rods, Screws in Stainless steel (AISI 316L or AISI 316); Shaft, Strainer in Stainless steel (AISI 316); Shaft sleeve in Tungsten carbide; Elastomers in FPM.
• SVI 2, 4, 8, 16 (S versions): Adapter in Cast iron (EN 1561-GJL-250 / ASTM Class 35); Impeller, Diffuser, Shaft, Coupling protection, Screws in Stainless steel (AISI 304 or AISI 316); Outer sleeve, Suction base, Strainer, Tie rods in Stainless steel (AISI 316L or AISI 316); Coupling in Aluminium (up to 4 kW) or Cast iron (for higher powers); Shaft sleeve in Tungsten carbide; Elastomers in FPM.
• SVI 2, 4, 8, 16 (N versions): Adapter, Suction base in Stainless steel (ASTM CF8M / AISI 316 cast); Impeller, Diffuser, Outer sleeve, Shaft, Strainer, Tie rods, Screws in Stainless steel (AISI 316L or AISI 316); Coupling in Aluminium (up to 4 kW) or Cast iron (for higher powers); Shaft sleeve in Tungsten carbide; Elastomers in FPM.
• SVI 33, 46, 66, 92 (S versions): Upper head, Adapter, Motor adapter, Seal housing, Coupling in Cast iron (EN 1561-GJL-250/200 / ASTM Class 35/25); Impeller, Diffuser, Suction base, Tie rods, Strainer, Screws, Coupling protection in Stainless steel (AISI 316L, AISI 304, AISI 316, ASTM CF8M); Shaft in Stainless steel (AISI 431); Wear ring in Technopolymer PPS; Shaft sleeve and bushing in Tungsten carbide; Bushing for diffuser in Carbon; Elastomers in FPM.
• SVI 33, 46, 66, 92 (N versions): Upper head, Adapter, Seal housing, Suction base in Stainless steel (ASTM CF8M / AISI 316 cast); Impeller, Diffuser, Tie rods in Stainless steel (AISI 316L); Shaft in Duplex stainless steel (EN 10088-1-X2CrNiMoN22-5-3 / UNS S 31803); Motor adapter, Coupling in Cast iron (EN 1561-GJL-200 / ASTM Class 25); Wear ring in Technopolymer PPS; Coupling protection, Strainer, Screws in Stainless steel (AISI 304 or AISI 316); Shaft sleeve and bushing in Tungsten carbide; Bushing for diffuser in Carbon; Elastomers in FPM.

Optional features

• Single-phase version.
• 4 poles version.
• Special voltages.
• 60 Hz frequency.
• Special materials for mechanical seals and gaskets.
• Horizontal installation.

Accessories

• Adapter ring for compatibility with previous SVI 30-60 models.

---

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 for the project.

Official datasheet (PDF)

Lenntech datasheet mirror