Pro-source 4420003850PRO Pneumatic Speed Control Muffler

Product Description

The PRO-SOURCE 4420003850PRO is a brass pneumatic speed control muffler designed to regulate exhaust airflow and reduce noise in compressed air systems. Threaded with a 3/8 inch male NPT connection, it handles up to 40 CFM and operates across a temperature range of 35 degrees F to 300 degrees F. The muffler measures 1-5/8 inches in overall length with a 11/16 inch diameter, making it a compact, direct-install component. Licensed plumbers, pipefitters, and pneumatic system technicians install this type of muffler on cylinders, valves, and other actuators where controlled exhaust and sound attenuation are required.

This speed control muffler is suited for use on pneumatic cylinders, solenoid valves, directional control valves, and actuator exhaust ports in both industrial and light commercial applications. It is used wherever a technician needs to meter exhaust flow to control actuator speed while simultaneously dampening exhaust noise. The 3/8 inch male NPT thread makes it compatible with standard NPT-ported pneumatic components found in a wide range of compressed air system configurations.

Key Features

• 40 CFM flow capacity supports a range of pneumatic actuator sizes
• 3/8 inch male NPT thread fits standard NPT-ported valve and cylinder exhaust ports
• Brass construction provides corrosion resistance and durability in compressed air environments
• Operating temperature range of 35 degrees F to 300 degrees F suits most industrial settings
• Compact 1-5/8 inch overall length minimizes installation footprint
• Dual function: meters exhaust flow for speed control and attenuates exhaust noise

Compatibility

Designed as an OEM-style replacement or direct-install muffler for pneumatic cylinders, solenoid valves, and directional control valves with 3/8 inch NPT exhaust ports.

Installation Notes

Installation is performed by a qualified pipefitter, pneumatic technician, or maintenance mechanic. Depressurize and lock out the compressed air supply before removing or installing any pneumatic fittings or mufflers. Use an appropriately sized open-end or adjustable wrench on the hex to thread the muffler into the exhaust port — do not overtighten, as brass threads can be damaged. Refer to local and system-level compressed air codes and the equipment manufacturer's service documentation before performing any pneumatic system work.