Pro-source 4420001460PRO Pneumatic Muffler 30 Cfm 1/4 in Npt

Product Description

The PRO-SOURCE 4420001460PRO is an aluminum pneumatic muffler designed to reduce exhaust noise at the discharge ports of pneumatic valves, cylinders, and other compressed-air components. It threads directly into a 1/4 inch Male NPT port and handles airflow up to 30 CFM, making it well suited for standard industrial and light commercial pneumatic circuits. The body measures 1-7/8 inches in overall length and 9/16 inches in diameter, keeping the installed footprint compact. At 0.1 pounds, it adds negligible weight to the assembly. Rated for operating temperatures between 35 degrees F and 160 degrees F, it covers the typical range found in shop, plant, and field pneumatic applications.

This muffler is a straightforward fit for pneumatic control panels, solenoid valve banks, air cylinders, and directional control valves that exhaust to atmosphere. It is commonly installed in manufacturing, automation, and HVAC control systems where uncontrolled exhaust noise is a concern. The sintered aluminum construction allows exhaust air to pass through the porous body while diffusing the pressure pulse that causes the characteristic exhaust crack. Industrial maintenance technicians and pneumatic system installers are the primary users in both new installation and maintenance-replacement scenarios.

Key Features

• 1/4 inch Male NPT thread installs directly into standard exhaust ports with no adapter needed
• 30 CFM rated airflow supports a wide range of solenoid valve and cylinder sizes
• Aluminum construction resists corrosion and withstands typical shop environments
• Compact body at 1-7/8 inches long and 9/16 inches wide fits in tight panel layouts
• Temperature range of 35 degrees F to 160 degrees F suits most indoor and sheltered outdoor applications
• Lightweight at 0.1 pounds — adds no meaningful load to valve manifolds or port faces

Compatibility

Designed as an OEM-style replacement or new-installation muffler for pneumatic valves, cylinders, and control components fitted with 1/4 inch NPT exhaust ports.

Installation Notes

Depressurize and lock out the pneumatic circuit before removing an existing muffler or installing this unit. Thread the muffler in by hand first, then snug with a 5/8 inch open-end or adjustable wrench — do not over-torque aluminum NPT fittings. Verify the exhaust port is free of debris before installation to prevent clogging the sintered element. Periodic inspection of the muffler element is recommended in dusty or oily environments, as contamination reduces airflow and increases back pressure on the valve.