N.R. Murphy abort dampers are ideal whenever combustible materials (paper, wood) are conveyed

Abort dampers from N.R. Murphy are recommended for the wood-processing and paper sectors.

Although the company is renowned throughout Canada and the United States as a major source of dust-collecting equipment for industrial use, N.R. Murphy’s inventory of products is not limited to dust collectors. This manufacturer also makes high-quality accessories like rotary air locks, dumpster bins, and filter bags. Another highly useful accessory available is its abort dampers, which the company recommends for users who face fire or explosion hazards.

A safer air solution

The N.R. Murphy abort damper is an instant aborting device that the user installs in the cleaned air stream of a filtering system. When a properly installed spark- or fire-detection system activates the device, it expels the air into the atmosphere. This is especially suited to industries that convey combustible materials pneumatically, such as wood processing or pulp and paper, in which the risk of fire and explosion is constantly present. Built out of heavy gauge reinforced steel, abort dampers have been designed specifically to protect workers and manufacturing facilities in the event of such an incident.

N.R. Murphy recommends activating and resetting the abort damper manually only after turning off the exhaust system. But the user can also activate it manually during filtering problems that are not too serious, so that manufacturing processes may continue uninterrupted until the system is fully repaired. Manufacturers can also operate abort dampers in the summer months to expel cleaned return air to the atmosphere while the facility windows and doors are open, unless the company is using air conditioning.

Abort dampers from N.R. Murphy come in 14 different sizes for various types of material-handling exhaust systems. Dimensions range from 43 by 20½ by 37¾ inches (size 11) to 107 by 58½ by 114¼ inches (size 48), with approximate weights going from 195 to 1,545 pounds. The company reserves the right to make product changes without notice.

N.R. Murphy’s abort dampers meet the requirements of the National Fire Protection Association Code 664 section 8.2.2.7.4.2 (2) for recycling air from a wood refuse exhaust system. It is one of many innovative pieces of equipment that this firm produces.

To learn more, contact N.R. Murphy.

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