The AVC Specialists brand has been a leader in building voltage controllers, rapping systems, replacement parts for Electrostatic Precipitators (ESPs) and performing maintenance support functions for customers since 1977. The primary industries that we serve include power (coal-fired, wood-fired, and biomass), chemical product manufacturing, petroleum refining, and primary metal manufacturing.

An Electrostatic Precipitator is a filtration device that removes fine particles (e.g., dust and smoke) from flue gases by channeling flow past high voltage electrodes that impart a charge onto these particulates. These charged particles are attracted to ground collecting plates, removing them from the flue gas stream. 

As particles build up, the effectiveness of the precipitator goes down. To maintain peak effectiveness, AVC Specialists manufactures rappers and rapping systems that knock the fly ash and other particulates from the high voltage systems and collecting plates so the ESP can continue to function optimally, allowing the particulates to descend down into the hopper for collection. The rapping system continues to impact the hopper walls to keep material moving towards the outlet valves and into the collecting bins or other containers for removal.

In addition to our products and replacement parts, we offer a wide variety of services and technologies to deliver solutions for your precipitator needs.


Primary Products and Solutions

Rapping Products for Precipitators, Coal Bunkers and Other Material Conveyors

Electrostatic Precipitator (ESP) Voltage Controllers


  • Precipitator Inspections
  • Replacement Parts
  • Repairs and Upgrades
Moorpark, CA, USA: 805-531-8900

Contact Us


Moorpark, CA, USA
A.V.C. Specialists, Inc.
5146 Commerce Avenue, Suite G
Moorpark, CA 93021

Phone: 805-531-8900
Fax: 805-531-8903