TDB, TDV Series

Summary

Product identification

• Series: TDB - TDV Series
• Models:
  • TDB: 22, 35, 58, 78, 120, 170
  • TDV: 120, 170, 220, 280
• Type: Vertical multistage electric pumps equipped with IE2 motors.
• Construction: Modular construction for optimized interchangeability of components. Diffusers are separate from stage casings.
• Typical Applications:
  • Water supply and pressure boosting (buildings, hotels, booster stations, water networks)
  • Water treatment (ultra-filtration systems, reverse osmosis systems, filtration)
  • Industry (washing and cleaning plants, cooling circuits, mining industry)
  • Irrigation (sprinkler irrigation)
  • Heating, ventilation, and air-conditioning (cooling towers, refrigerators, heat exchangers, boilers, artificial snow generators)
• Main Pumped Liquids: Clean liquids in general, hot and cold water, condensates, oil-based suspensions, acid or basic aqueous solutions.

Operating limits

• Flow Rate: Up to 340 m³/h
• Head: Over 500 m
• Liquid Temperature: Up to 140 °C (standard version)
• Maximum Operating Pressure: PN10/16, PN25/40, PN63 (depending on model and flange type)
• Motor Ambient Temperature: -15 to +40 °C
• Altitude: Up to 1000 m above sea level
• Direction of Rotation: Clockwise (looking at the pump from the motor side)

Mechanical / hydraulic

• Pump Type: Vertical multistage pump fitted with closed radial impellers.
• Bearings: Radial slide bearings in suction body (liquid-lubricated). TDV series also features a grease-lubricated axial bearing.
• Mechanical Seal:
  • Standard mechanical seal according to EN 12756 (version k), balanced or unbalanced depending on the model.
  • Seal chamber dimensions according to ISO 3069.
  • Standard components: Carburundum / resin-impregnated carbon / EPDM.
  • Maximum pressure: 16 bar (SA execution, not balanced), 55 bar (SB execution, balanced).
  • Seal diameters:
    • TDB 22 - TDB 35: 35 mm
    • TDB 58 - TDB 78: 43 mm
    • TDB - TDV 120: 53 mm
    • TDB - TDV 170: 60 mm
    • TDV 220: 60 mm
    • TDV 280: 60 mm
• Connections: Inlets fitted with round flanges (PN10/16, PN25/40, PN63 depending on pump type).
• Testing: Tested to ISO 9906 class 2.
• Materials (Standard Versions):
  • Version F: Impeller, diffusers, suction body, delivery body, stage casing, seal cover, bearing cover, motor support are Cast iron (EN 1561-GJL-250 / ASTM A4876-Class 35B). Delivery body PN63 is Cast iron (EN 1563-GJS-400-15 / ASTM A536-60-40-18). Shaft and shaft sleeves are Stainless steel (EN 10088-1-X20Cr13 / AISI 420).
  • Version FB: Impellers are Bronze (EN 1982-G-CuSn10-C / UNS C90700). Other cast iron components as per Version F. Shaft and shaft sleeves are Stainless steel (EN 10088-1-X20Cr13 / AISI 420).
  • Version N: Impellers, diffusers, suction body, delivery body, stage casing, seal cover are Stainless steel (EN 10213-4-GX5CrNiMo19-11-2 / ASTM CF8M (AISI316 cast)). Shaft sleeves for bushing and shaft are Stainless steel (EN 10088-1-X2CrNiMoN22-5-3 / AISI 329 LN - S31803). Shaft sleeve for seal is Stainless steel (EN 10088-1-X20Cr13 / AISI 420). Keys and plugs are Stainless steel (EN 10088-2-X6CrNiMoTi17-12-1 / A276 - Typ 316Ti).

Electrical

• Motor Type: Short-circuit squirrel-cage motor (TEFC), enclosed construction with external ventilation.
• Efficiency: Standard supplied IE2 motors (≥ 0.75 kW) are compliant with Regulation (EC) no. 640/2009 and IEC 60034-30.
• Protection: IP55
• Insulation: Class 155 (F)
• Performance: According to EN 60034-1.
• Standard Voltage (Three-phase, 50 Hz):
  • 220-240/380-415 V for powers up to 3 kW.
  • 380-415/660-690 V for powers above 3 kW.
• Motor Power Outputs:
  • TDB series: up to 90 kW.
  • TDV series: from 90 to 355 kW.
• Overload Protection: To be provided by the user.
• Cable Gland: Standard passage dimensions according to EN 50262 (metric thread).
• Noise Levels (LpA):
  • 2-pole motors: <70 dB (2.2-4 kW), 71 dB (7.5 kW), 73 dB (11-18.5 kW), 70 dB (22 kW), 72 dB (30-37 kW), 75 dB (45-55 kW), 77 dB (75-160 kW), 78 dB (200-250 kW), 80 dB (315-355 kW).
  • 4-pole motors: <70 dB (1.1-90 kW).

Hydraulic Performance

Hydraulic performance ranges and detailed curves for various models (TDB22, TDB35, etc.) at 50 Hz, 2 poles, and 4 poles are available in the official PDF. See the official PDF for exact tabulated values and performance curves.

Motor Efficiency and Current Data

Detailed tables for motor efficiency (ηN), current (IN), power factor (cosϕ), and other electrical characteristics for 2-pole and 4-pole motors at 50 Hz are provided in the official PDF. See the official PDF for exact tabulated values.

Available Voltages

A comprehensive list of standard and optional three-phase voltages for 50 Hz and 60 Hz operation, covering various power ranges, is available in the official PDF. See the official PDF for exact tabulated values.

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 for any project must always match the specific OEM PDF revision used for that project.

Official datasheet (PDF)

Lenntech datasheet mirror