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DRY Electrostatic Precipitator Spares

Emitting/Discharge Electrodes:

NTNN offers replacement Emitting / Discharge Electrodes for many Precipitator designs. The standard Emitting Electrode is designed for longer life with a high tensile strength. For Discharge Electrodes of Alstom style ESP’s, the shrouded hook ends of Electrodes are manufactured with the Electrode wire inserted through the shroud prior to forming the hook, thus eliminating the requirement for crimping. We manufacture different designs of Discharge Electrodes to OEM standards, using varieties of raw materials. There are many more designs & shapes of Discharge Electrodes, which are part of our product range, but not displayed below. Please contact us for all your requirements of Discharge / Emitting Electrodes.

Collecting Electrodes:

Collecting Plates / Electrodes are manufactured in our groups’ facility. In house engineering and design, and a dedicated quality assurance staff ensures that you receive the most durable & precision made Collecting Electrodes to suit all most all styles of Electrostatic Precipitators.

We, at NTNN, offer Collecting Plates in thickness of 1.25 to 1.6 mm, to different profiles and in lengths up to 16.5 meters.

All Types of ESP Insulators & Heaters:


NTNN High Voltage Porcelain Insulators Mechanically support & Electrically isolate the ESP Electrodes from the casing. Support Insulators are suitably designed to withstand required load as well as temp. We offer Cylindrical / Conical support Insulators & shaft Insulators for different types of ESPs.

  • Excellent electric resistance
  • Withstands temperature variations
  • High functional efficiency
  • Precision technical design
  • Withstand high voltage & mechanical load
  • Support/Conical Insulator
  • Support Insulator
  • Shaft Insulator
  • Pin Insulator
  • Wall Through Bushing Insulator


a. Hopper Heaters: The fly ash from the flue gases passing through the ESP fields are collected in the hoppers below and then carried by ash handling system. Due to moisture content and low temperature inside hoppers, choking & accumulation of fly ash occurs frequently affecting the performance of ESP. Heaters are provided on all 4 sides of hoppers to maintain temperature inside hoppers for effective flow of fly ash to ash disposal system. High Temperature Hopper Heaters are manufactured from incoloy for ESP application for long life. These are designed to withstand Shock & Vibration and when installed on the sides of Hopper and insulated, they provide a blanket Heat Coverage effect.

b. Insulator Heaters: For optimum performance of the ESP the temperature inside the ESP should be maintained suitably. The air ingress through the insulator openings are to be kept hot and for this purpose, heating elements are provided on the Insulators.