Norgren C/S4 Pneumatic Exhaust Muffler 110 Cfm 1/2 in Npt

Product Description

The NORGREN C/S4 is a pneumatic exhaust muffler designed to reduce noise from compressed air system exhaust ports. It threads directly into exhaust outlets on pneumatic valves, cylinders, and directional control components, attenuating discharge noise during actuator cycling. Constructed from polyethylene, the C/S4 provides corrosion resistance and lightweight performance in industrial and trade pneumatic applications. With a flow capacity of 110 CFM and a Cv rating of 5.3, it supports high-throughput pneumatic circuits without creating significant back pressure. Weighing just 0.088 pounds, this muffler is a drop-in replacement for worn or damaged exhaust silencers on air-powered equipment.

The C/S4 is suited for use in industrial maintenance, HVAC equipment rooms, manufacturing facilities, and anywhere compressed air valve banks require exhaust noise control. It connects via a 1/2 inch Male NPT thread, making it compatible with standard pneumatic valve bodies and manifold exhaust ports commonly found in automated control panels, pneumatic actuator assemblies, and compressed air distribution systems. Installation requires no special tooling and fits standard NPT exhaust port configurations.

Key Features

• 110 CFM flow capacity supports high-cycle pneumatic circuits with minimal restriction
• Cv rating of 5.3 ensures low back pressure across the exhaust path
• 1/2 inch Male NPT thread for direct installation into standard valve exhaust ports
• Polyethylene construction resists corrosion and chemical exposure in industrial environments
• Lightweight at 0.088 pounds for easy handling and installation in tight panel spaces

Compatibility

Designed as an OEM-style replacement exhaust muffler for pneumatic valves and directional control components with 1/2 inch female NPT exhaust ports.

Installation Notes

Installation is performed by qualified maintenance technicians or pipefitters familiar with compressed air systems. Depressurize and lock out the pneumatic circuit before removing the existing muffler or handling any valve components. Apply thread sealant rated for compressed air service to the NPT threads before installation. Hand-tighten and snug with a wrench — do not overtighten polyethylene-bodied fittings, as excessive torque can crack the body.