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ASCO™ Pneumatic Exhaust Muffler
Exhaust Silencers
The ASCO Numatics makes a wide range of high-quality exhaust silencers for pneumatic motion control systems.
These include heavy-duty and speed-control mufflers, vent silencers, and inlet filter strainers. The silencers are designed for automotive, tire manufacturing, press room and metal stamping, and bottling applications.
ASCO™ Pneumatic Exhaust Muffler


Standards / Regulations
1/8, 1/4, 1/2, 3/8, 3/4, 1, 1 1/4, 1 1/2, 2


  • The Numatics M Series muffler is constructed of heavy-duty, corrosion-resistant metal and softly exhausts air, dispersing it over a 360° pattern
  • The Numatics SSM Series stainless steel muffler is highly resistant to atmospheric corrosion, sterilizing solutions, organic chemicals, and many inorganic chemicals
  • The compact Numatics P Series muffler is ideal for limited spaces and can muffle air valve exhaust noise, intake filtration, coalescing of oil mist exhaust, or pressure or vacuum equalization
  • Combining a sturdy nylon thread with a polyethylene body, the Numatics E Series silencer provides a lightweight alternative to heavier, metal-based mufflers while reducing decibels to an OSHA-approved level
  • The Numatics bronze speed control muffler provides infinite metering of air flow. With linear adjusting capability, the speed of the cylinder can be decreased
  • The Numatics polyethylene speed control muffler offers fine adjustment to the low end of the flow range, followed by more coarse control as flow is increased to the maximum
  • The Numatics breather vent silencer offers some noise reduction, but is better suited for keeping contaminant out of valve exhaust ports or single-acting cylinder ports
  • Ideal for air, oil, or water, the Numatics C Series inlet filter strainer is compact and lightweight-perfect for point-of-use applications