Legris 3180 53 00 Push-to-connect Plug 1/8 Inch Od

Product Description

The LEGRIS 3180 53 00 is a push-to-connect tube fitting plug designed to seal off 1/8-inch OD tubing in pneumatic and fluid-handling systems. Constructed from glass-reinforced nylon with a nitrile o-ring, this plug provides a reliable, leak-free closure rated to 290 psi and a vacuum rating of 28 in-Hg. It is installed without tools by inserting the tubing directly into the fitting body, making it suitable for quick disconnects, line capping during service, or permanent port closures. Plumbers, pneumatic technicians, and mechanical contractors use this fitting type when decommissioning a branch line or temporarily isolating a circuit without cutting or capping the tubing with solder or thread sealant.

This plug is suited for use in low-pressure pneumatic circuits, instrumentation lines, and light-duty fluid distribution systems where 1/8-inch OD tubing is routed. Typical applications include compressed air distribution panels, industrial automation plumbing, and HVAC controls tubing. The glass-reinforced nylon body resists common shop chemicals and moderate temperature swings, making it appropriate for both indoor mechanical room installations and light industrial environments.

Key Features

• Push-to-connect design allows tool-free installation on 1/8-inch OD tubing
• 290 psi pressure rating suitable for pneumatic service lines
• 28 in-Hg vacuum rating supports low-vacuum circuit applications
• Glass-reinforced nylon body for chemical resistance and structural rigidity
• Nitrile o-ring provides a positive seal compatible with air and common hydraulic fluids
• Compact profile at 1.14 inches length and 0.47 inches width minimizes space requirements in tight plumbing runs

Compatibility

Designed as an OEM-style push-to-connect plug fitting for pneumatic and fluid-handling systems using 1/8-inch OD tubing.

Installation Notes

Installation is performed by a qualified pneumatic or plumbing technician. Before installing or removing any push-to-connect fitting, depressurize and vent the line completely to zero pressure. Verify tubing OD is within the fitting specification and that the tube end is cut square and free of burrs to ensure a proper seal. Inspect the nitrile o-ring for damage before installation and do not exceed the rated 290 psi working pressure.