IN-VB 2 / IN-VB-S 2 / IN-VB-S-V 2

Summary

Product identification

• Series: IN-VB 2 to IN-VB 85 Vertical multistage inline centrifugal pumps.
• Type Designations:
  • IN-VB: Standard version with oval flange; all wetted parts stainless steel AISI 304.
  • IN-VB…F: Standard version with round flange; all wetted parts stainless steel AISI 304.
  • IN-VB-S: Special version with oval flange; all wetted parts stainless steel AISI 316 L.
  • IN-VB-S…F: Special version with round flange; all wetted parts stainless steel AISI 316 L.
  • IN-VB-S-V: Special version with Victaulic coupling; all wetted parts stainless steel AISI 316 L.

Description

• High-quality product with wetted parts made of stainless steel AISI 304 (IN-VB series) or AISI 316 L (IN-VB-S series).
• Designed for high efficiency, longevity, and low maintenance.
• Features low noise operation and minimal space requirements.
• Equipped with ceramic, wear-resistant, liquid-lubricated bearings.
• Shaft sealing is achieved with a mechanical seal according to DIN(-EN) standards.
• Sleeve sealing utilizes O-rings.
• Connecting flanges have standard mounting dimensions.
• Pump fulfills the latest safety regulations (CE approval).

Applications

• Booster units
• Boiler feed
• Water treatment
• Substrate systems
• Irrigation
• Air conditioning
• Sprinkler installations (jockey pump)
• Car washes
• Fire fighting units
• Cooling water supply
• Marine applications

Operating limits

• Minimum Flow Rate: A minimum flow rate must be maintained during operation to prevent overheating. This rate is a percentage of the maximum flow rate (Qmax) and depends on the medium's temperature. Refer to the characteristics curves in the official PDF for details.
• Medium Temperature: -15 – +100 °C
• Ambient Temperature: 40 °C
• Maximum Nominal Pressure (PN):
  • PN 16 for models with Rp 1", Rp 1¼", or Rp 1½" oval counter flanges.
  • PN 25 for models with DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, or DN 100 connecting flanges, and for Victaulic coupling versions.

Feed water

• Suitable for clean watery mediums.

Electrical

• Motor Type: Specially developed three-phase motors.
• Speed: 2850 min⁻¹
• Frequency: 50 Hz
• Enclosure Protection: IP 55 (according to IEC standard)
• Insulation Class: F
• Efficiency Class: IE 2
• Rotation: Clock-wise, viewed from the top of the motor.
• Single-Phase Option: Also available with single-phase motor 230 V, 50 Hz, IP 54 up to 2.2 kW.
• Motor Protection: Standard motors from 3 kW upwards are fitted with a PTC resistor.
• Motor Data (3~ 400 V):
  • Power (P): Ranges from 0.37 kW up to 45.00 kW (for IN-VB 60 series) and 76.00 kW (for IN-VB 85 series).
  • Nominal Current (IN): Ranges from 0.95 A up to 76.00 A.
  • Maximum Current (Imax): Ranges from 1.40 A up to 85.00 A.
  • See the official PDF for exact tabulated values for each pump model and motor power.

Mechanical / hydraulic

• Connections:
  • IN-VB 2 / IN-VB-S 2: Oval counter flanges Rp 1" (standard) or connecting flanges DN 25 to DIN(-EN).
  • IN-VB-S-V 2: Victaulic coupling, stainless steel AISI 316 L, Ø 42.2 mm.
  • IN-VB 4 / IN-VB-S 4: Oval counter flanges Rp 1¼" (standard) or connecting flanges DN 32 to DIN(-EN).
  • IN-VB-S-V 4: Victaulic coupling, stainless steel AISI 316 L, Ø 42.2 mm.
  • IN-VB 6 / IN-VB-S 6: Oval counter flanges Rp 1¼" (standard) or connecting flanges DN 32 to DIN(-EN).
  • IN-VB-S-V 6: Victaulic coupling, stainless steel AISI 316 L, Ø 42.2 mm (standard).
  • IN-VB 10 / IN-VB-S 10: Oval counter flanges Rp 1½" (standard) or connecting flanges DN 40 to DIN(-EN).
  • IN-VB-S-V 10: Victaulic coupling, stainless steel AISI 316 L, Ø 60.3 mm (standard).
  • IN-VB 15 / IN-VB-S 15: Connecting flanges DN 50 to DIN(-EN).
  • IN-VB-S-V 15: Victaulic coupling, stainless steel AISI 316 L, Ø 60.3 mm (standard).
  • IN-VB 25 / IN-VB-S 25: Connecting flanges DN 65 to DIN(-EN).
  • IN-VB 40 / IN-VB-S 40: Connecting flanges DN 80 to DIN(-EN).
  • IN-VB 60 / IN-VB-S 60: Connecting flanges DN 100 to DIN(-EN).
  • IN-VB 85 / IN-VB-S 85: Connecting flanges DN 100 according to DIN(-EN).
• Materials (General):
  • Wetted Parts (IN-VB): Primarily stainless steel AISI 304 (e.g., sleeve, diffusers, top plate, impellers, shaft protection bush, plug). Pump casing is AISI CF8. Shaft is AISI 431. Elastomeres are EPDM. Counter flange is Cast iron.
  • Wetted Parts (IN-VB-S): Primarily stainless steel AISI 316 L (e.g., sleeve, diffusers, top plate, impellers, shaft protection bush, plug). Pump casing is AISI CF8M. Shaft is AISI 329. Elastomeres are VITON. Counter flange is AISI CF8M.
  • Common Parts: Bearings are Aluminium oxide. Shaft protection sleeve is Tungsten carbide. Support plate and bracket are Cast iron.
  • Mechanical Seal: Carbon/Silicium carbide or Silicium carbide/carbon, depending on the number of stages.
• Dimensions and Weights:
  • Dimensions (E1, E2, F1, F2 in mm) and Net Pump Weight (kg) are provided for each model and motor power.
  • See the official PDF for exact tabulated values for each pump model.

Special Versions

• Special drive motors (e.g., explosion-proof, 60 Hz operation).
• Elastomeres made of Viton (instead of EPDM).
• Motor flanges according to NEMA.
• Special mechanical seals.

---

Disclaimer This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror