Alwitco 0374012 D12-0374012

Alwitco D12 Atomuffler Damper Muffler, 1-1/4" Male NPT

Genuine Alwitco ATOMUFFLER® Series 0374012 Model D12 Damper Pulsation Snubber Muffler, 1-1/4 in Male NPT Connection, 1360 SCFM Flow Rate, 175 PSI Pressure Rating, Single Chamber

Genuine Alwitco ATOMUFFLER® Series 0374012 Model D12 Damper Pulsation Snubber Muffler, 1-1/4 in Male NPT Connection, 1360 SCFM Flow Rate, 175 PSI Pressure Rating, Single Chamber 0374012

Easily Handles Dirt And Moisture-Laden Air

Featuring the same outstanding design as the industry-standard Atomuffler® the Damper Muffler includes an added variable reactive damper that provides an unobstructed free-flow air passage to reduce noise caused by emanating raw exhaust air.


This unique design utilizes a proven reactive principle of noise suppression. The explosive force of exhaust air impacting against the damper thrusts it into an oscillating motion, converting dynamic acoustic energy into kinetic energy. The damper’s responsive pulsating motion drains off kinetic energy hence dissipating acoustical energy.


Some recommended applications include foundry equipment and railway and transit brake systems for pressures up to 125 PSI

Connection Size      :      1-1/4 Inch
Connection Type      :      Male NPT
Diameter      :      3.90 Inch
Flow Rate      :      1360 SCFM
Length      :      8.75 Inch
Maximum Operating Pressure      :      175 PSI
Model      :      D12
Operating Temperature      :      50 to 120 Deg F
Replacement Element      :      0911012
Series      :      Atomuffler®
  • Variable reactive damper provides an unobstructed free-flow air passage to reduce noise caused by emanating raw exhaust air
  • Unique design uses a proven reactive principle of noise suppression
  • Explosive force of exhaust air impacting against the damper thrusts it into an oscillating motion, converting dynamic acoustic energy into kinetic energy
  • Damper’s responsive pulsating motion drains off kinetic energy, dissipating acoustical energy
  • Ideal for foundry equipment and railway and transit brake systems
  • Recommended for pressures up to 125 PSI
  • pdfProduct Catalog https://www.eindustrialsolutions.com//ASSETS/DOCUMENTS/ITEMS/EN/alwitco_product_catalog.pdf