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Silencing Mufflers

EXAIR Silencing Mufflers help to reduce work area noise produced by air exhausting from cylinders, valves and other air powered equipment. Per OSHA Standard 1910.95(a), a worker must not be muffler Vivek Engineers - Silencing Mufflersexposed to sound levels above 90 dBA for any eight hour shift of a 40 hour work week. Silencing Muffl ers help plants meet this OSHA requirement by reducing the sound to safe levels below 90 dBA. h ey also eliminate harmful dead end pressures. Each style of Silencing Muffler shown has a high airfl ow capacity, with low back pressure. Popular NPT sizes are ideal for new and existing installations.

Reclassifying Mufflers

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Reclassifying Mufflers are an upgrade from Sintered Bronze Muffl ers (see next page). They offer the best noise reduction - up to 35 dB. Available from 1/8 NPT through 1 NPT. Reclassifying Muffl ers eliminate oil mist. Exhaust air from cylinders and valves often contain oil mists that can contaminate the workers' breathing air, aff ecting their health. Per OSHA Standard 29 CFR 1910.1000, a worker’s cumulative exposure to oil mist must not exceed 5mg/m3 by volume in any eight hour shift of a 40 hour work week.
The patented wrap design of the removable element separates oil from the exhausted air so virtually no oil is released into the environment. Based on an intake of 50 PPM at 100 PSIG, the Reclassifying Mufflers reclassify and reduce the exhausted oil mist to0.015 PPM. A reservoir where oil accumulates at the bottom can be drained by attaching a 1/4" tube.

Each Reclassifying Muffler passes a certain volume of air with minimal back pressure restriction so it doesn’t interfere with the operation of the cylinder or valve. When used with cylinders, the “Muffl er Quick Pick” table (right) helps you select the appropriate modelbased on the actual bore and stroke of the cylinder.

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Sintered Bronze Mufflers

Sinteredbronzemufflers Vivek Engineers - Silencing MufflersEXAIR's low cost Sintered Bronze Mufflers are easy to install in new and existing exhaust ports of valves, cylinders and other air powered equipment. Each Sintered Bronze Muffler is capable of passing a certain volume of air with minimal back pressure restriction so it doesn’t interfere with the operation of the cylinder or valve. When used with cylinders, the “Muffl er Quick Pick” table helps you select the appropriate model based on the actual bore and stroke of the cylinder. (Note: Model 9089 has a 1/2"-20 UNF straight thread to fit most solenoid valves.)

 

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Straight-Through Mufflers

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Straight-Through Silencing Mufflers feature a corrosionresistant aluminum outershell lined with sound absorbing foam for better noise reduction. The typical noise reduction is up to 20 dB.

Caution: Operations approaching 32°F (0°C) or below could
result in freeze-up due to moisture in the compressed air line.

Heavy Duty Mufflers

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Heavy Duty Silencing Mufflers feature a corrosion-resistant aluminum outer shell with an internal stainless steel screen that protects valves and cylinders from contamination that could enter through the exhaust ports. This also keeps contaminants such as rust from being ejected at high speed from the exhaustport.The typical noise reduction is up to 14 dB.

Caution: Operations approaching 32°F (0°C) or below could
result in freeze-up due to moisture in the compressed air line.