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The PRO-SOURCE 4420001250PRO is a brass pneumatic speed control muffler designed to regulate airflow and reduce exhaust noise in compressed air systems. With a 1/2 inch male NPT thread and a rated flow capacity of 60 CFM, this muffler installs at the exhaust port of pneumatic valves, cylinders, and actuators to control actuator speed while dampening exhaust noise. The overall length is 2 inches and the hex size is 0.875 inches across flats. Constructed entirely from brass, it handles operating temperatures from 35 degrees F to 300 degrees F. Maintenance technicians and pneumatic systems installers fit this component during machine assembly or routine service on air-powered equipment.
This speed control muffler is suited for industrial and light commercial pneumatic systems where exhaust flow metering and noise reduction are required at valve or actuator exhaust ports. Typical applications include pneumatic directional control valves, air cylinders, and solenoid valve banks in automated equipment, assembly lines, and process control systems. The 1/2 inch male NPT connection fits standard NPT-threaded exhaust ports common across a wide range of pneumatic components. Its compact 2 inch length allows installation in tight panel or manifold environments without interference.
Designed as a standard replacement or new-installation speed control muffler for pneumatic valves, cylinders, and actuators with 1/2 inch NPT exhaust ports.
Installation should be performed by a qualified pneumatic systems technician or maintenance mechanic. Depressurize and lock out the compressed air supply to the circuit before removing or installing any pneumatic components. Use an appropriately sized open-end or box wrench on the 0.875 inch hex to thread the muffler hand-tight and then wrench-snug into the exhaust port — do not overtighten brass fittings. Apply thread sealant compatible with compressed air systems if required by local maintenance standards.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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