Legris 0682 00 21 Pneumatic Exhaust Muffler 1/2 Bspp

Product Description

The LEGRIS 0682 00 21 is a stainless steel pneumatic exhaust muffler designed to reduce noise at the exhaust port of pneumatic valves, cylinders, and directional control equipment. Threaded with a 1/2 inch BSPP connection, it attenuates exhaust noise to a rated 108 dB level while allowing controlled airflow discharge. The stainless steel construction handles operating temperatures from -4 degrees F to 355 degrees F, making it suitable for demanding industrial environments. It is installed by pneumatic system technicians and maintenance mechanics on compressed-air circuits where port exhaust noise must be managed.

This muffler fits standard 1/2 inch BSPP exhaust ports found on pneumatic solenoid valves, manifold stations, and directional control valves in industrial, manufacturing, and automation applications. Its compact overall length of approximately 0.87 inches (22 mm) allows installation in tight panel or manifold configurations where clearance is limited. The 27 mm hex size accommodates a standard open-end or combination wrench for straightforward installation and removal during routine maintenance.

Key Features

• 1/2 inch BSPP thread for direct fitment to standard metric-thread pneumatic exhaust ports
• Stainless steel construction for corrosion resistance in industrial and washdown-adjacent environments
• Rated noise level of 108 dB to characterize exhaust attenuation performance
• Wide service temperature range: -4 degrees F to 355 degrees F
• Compact 22 mm overall length suitable for space-constrained manifold installations
• 27 mm hex drive for easy installation and removal with common hand tools

Compatibility

Designed as a replacement or new-installation exhaust muffler for pneumatic valves and actuators equipped with 1/2 inch BSPP exhaust port threads. No specific compatible model numbers were provided in available product data.

Installation Notes

Installation is performed by qualified pneumatic or industrial maintenance technicians. Depressurize and isolate the compressed-air circuit completely before removing any existing muffler or fitting. Thread the muffler hand-tight first, then snug with a wrench on the 27 mm hex — do not overtighten, as stainless steel threads can gall. Verify the exhaust port is free of contamination before installation to prevent clogging the sintered or porous muffler element.