Exair Accessories Silencing Mufflers

Reclassifying Mufflers are an upgrade from Sintered Bronze Mufflers. They offer the best noise reduction – up to 35 dB. Reclassifying Mufflers eliminate oil mist. Exhaust air from cylinders and valves often contain oil mists that can contaminate the workers’ breathing air, affecting their health. Per OSHA standard 29 CFR 1910.10, a worker’s cumulative exposure to oil mist must not exceed 4.32 PPM (particles per million) 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 the intake of 50 PPM at 100 PSIG, the Reclassifying Mufflers reclassify and reduce the exhausted oil mist to .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 “Muffler Quick Pick” table helps you select the appropriate model based on the actual bore and stroke of the cylinder.

Two tools are provided below to help you choose the model best suited to your application. The “Flow vs. Pressure Drop” performance curves show the amount of back pressure that builds as flow through the muffler is increased. For cylinders, use the “Muffler Quick Pick” table that helps you select a model that provides minimum back pressure restriction based on the actual bore and stroke of your cylinder (based on an acceptable exhaust time of 0.5 seconds).

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

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 exhaust port. The typical noise reduction is up to 14 dB.