Accessories

N.R. Murphy Limited manufactures and supplies a wide variety of dust collection accessories and components to upgrade or supplement your current system. Ask us about upgrading your system to meet NFPA compliancy.

Abort Damper

The N.R. Murphy Limited Abort Damper, when installed in the clean air stream of a filtering system, is an instant aborting device which expels the air to atmosphere when activated by a properly installed spark or fire detection system. Our Abort Damper features a heavy gauge, reinforced steel design and a brand new electro-magnetic latch assembly to reduce the chance of mechanical failure. Available in a wide variety of sizes, configurations, and features including bird screening, extended cowls and access platform with ladder.

Spark Detection and Suppression System

The spark detection and suppression system is specifically designed to protect woodworking facilities from devastating fires. Utilizing infrared sensors, spray assembly and abort damper to detect sparks, extinguish them instantaneously and then abort the potential smoke to the outside. Utilizing the same panel, we can provide a heat sensor and sprinkler assembly to detect and extinguish potential fires within the collector housing. Call today to see what products are right for you!

Duct Silencer

N.R. Murphy Limited’s duct silencers are a ducting accessory designed to minimize vibrations and noise within your dust collection system. Ours are made from an all welded, heavy gauge steel design with layered silencing media which is protected by a perforated metal to minimize erosion. Available in circular or rectangular designs to fit your needs. The duct silencer is typically installed on the return line and is an incredibly cost effective investment to increase the quality of your system and reduce noise pollution for workers. No maintenance required either!

Rotary Air Lock

N.R. Murphy Limited’s rotary air lock is designed to run all day to continuously discharge waste from the bottom of a dust collector, cyclone or screw conveyor. Standard design features a direct drive gear reducer and motor, but also available in chain driven arrangements. Other optional upgrades include heavy duty wipers for abrasive materials and APEX certified NFPA compliant models. The rotary air lock is especially useful for our pulse jet dust collectors to create a truly 24/7 operation. 

No Return Valve/Vigiflap

N.R. Murphy Limited distributes a wide variety of ATEX certified dust collection accessories including, including the No Return Valve and VigiFLAP. Both of these accessories are designed to protect workers and facilities from the damaging effects of a dust collector explosion. By utilizing a counter-weighted valve flap and a locking mechanism, the device will not only block the ducting to stop the pressure, but also signal to the collector to turn off. The VigiFLAP has the added benefit of being more flexible in its applications and installation.

Inlet Blowback Damper

N.R. Murphy Limited’s inlet blowback damper provides the same relative functionality as the No Return Valve but does not comply with some standards. The device is also installed on the inlet section of the ducting to prevent explosion and pressure waves from reaching the manufacturing facility and workers. Available with a locking mechanism and sensor to alert the collector of an explosion and force shutdown. 

Filters

At N.R. Murphy Limited, we specialize in manufacturing and supplying an extensive range of filters designed to meet diverse needs. Whether you require filter bags, cartridge filters, or pleated filters, we are fully equipped to provide the perfect solution for you. With our vast experience in analyzing hundreds of different dust samples, we have the expertise to select the appropriate filter media and ratio to ensure efficient and effective dust filtration. Our commitment is to guarantee that your dust is filtered properly, providing you with a cleaner environment.

OTHER ACCESSORIES

Explosion Relief Venting

Flameless Explosion Vent

Self Dumping Hopper

Ladders & Catwalks

Downdraft Tables

Two-Way Diverters

Control Panels

Fire Dampers

Spark Traps

Screw Conyevors

Blast Gates (Basic & Pneumatic)

Ducting & Transitions

Other Ducting Accessories:

  • Angle Rings
  • Blast Gates
  • Elbows
  • Flexible Ducting
  • Floor Sweeps
  • Cleanout Doors
  • Ball Joints
  • Square to Rounds
  • Y Branches
  • And many more!
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