Schneider Electric B-391 Barb Plug 1/4 Inch (50 Pack)

The Schneider Electric B-391 is a pneumatic barb plug designed to seal off unused barb fittings in HVAC control systems. This essential accessory prevents air leaks in pneumatic control lines, ensuring optimal system performance and pressure integrity.

Key Features:

• 1/4 inch or 5/32 inch barb connection size for versatile compatibility
• Designed for Barber Colman and Schneider Electric pneumatic control systems
• Prevents air leaks at unused connection points
• Durable construction for long-lasting reliability
• Convenient 50-piece pack for multiple installations and maintenance inventory

This plug is commonly used in building automation systems to cap off extra barb fittings on pneumatic control devices, thermostats, actuators, and valve assemblies. The B-391 ensures proper system pressurization by eliminating potential leak points in your pneumatic network.