Pro-source 4410001250PRO Pneumatic Exhaust Muffler 1/2 in Npt

Product Description

The PRO-SOURCE 4410001250PRO is a sintered bronze pneumatic exhaust muffler designed to reduce exhaust noise on compressed air systems. Threaded with a 1/2 inch male NPT connection, it installs directly into exhaust ports on pneumatic valves, cylinders, and actuators. At a rated 92 dB, it significantly attenuates the sharp crack of venting compressed air. The sintered bronze construction allows controlled airflow through its porous body, dampening sound without blocking exhaust. It measures 1-7/8 inches in overall length and 7/8 inches in overall width, making it a compact drop-in solution. Pneumatic technicians and maintenance mechanics are the primary installers.

This muffler fits standard 1/2 inch NPT exhaust ports found on directional control valves, solenoid valves, and pneumatic actuator assemblies in industrial, commercial, and light manufacturing environments. It is suited for systems operating within a temperature range of 35 degrees F to 300 degrees F, covering most standard compressed air applications. Its compact footprint allows installation in tight manifold and valve bank configurations where space around exhaust ports is limited.

Key Features

• Sintered bronze body provides durable, corrosion-resistant noise attenuation without restricting exhaust flow
• 1/2 inch male NPT thread for direct installation into standard pneumatic exhaust ports
• 92 dB decibel rating — measurable noise reduction on compressed air exhaust cycles
• Rated for temperatures from 35 degrees F to 300 degrees F
• Compact size — 1-7/8 inches OAL and 7/8 inches OAW — fits tight valve and manifold installations
• Lightweight at 0.1 pounds for easy handling and installation

Compatibility

Designed as a standard replacement or new-installation exhaust muffler for 1/2 inch male NPT exhaust ports on pneumatic directional control valves, solenoid valves, and pneumatic actuators.

Installation Notes

Installation is performed by pneumatic technicians or qualified maintenance mechanics. Depressurize and lock out the compressed air supply before removing any existing muffler or accessing exhaust ports. Thread the muffler in by hand first, then snug with an appropriately sized wrench — use the 0.875 inch hex flat. Do not overtighten sintered bronze fittings, as the porous body can crack under excessive torque.