Parker 139PLP-8M Push-to-connect Plug Fitting 8mm

Product Description

The PARKER 139PLP-8M is a straight push-to-connect plug fitting designed to seal off an open tube end in pneumatic and fluid-handling systems. Constructed from nickel-plated brass with a silicone-free grease lubricant, it accepts 8mm outside diameter tubing and holds a maximum working pressure of 300 psi. The yellow release button allows quick tube removal without additional tools. Rated for temperatures from 0 degrees F to 200 degrees F, this plug is suited for use in compressed air lines, light hydraulic circuits, and instrumentation plumbing where a clean, repeatable tube termination is required. Licensed HVAC technicians, plumbers, and industrial maintenance techs are the typical installers.

This fitting is used wherever an 8mm OD tube line must be capped or temporarily blocked without cutting into the line or using threaded components. Common applications include pneumatic control panels, air-preparation assemblies, and modular plumbing manifolds in both light commercial and industrial settings. The plug-in design speeds up system modifications and pressure-testing workflows, making it a practical choice during commissioning or troubleshooting of multi-circuit pneumatic systems. It meets the UL94 V-0 flame resistance standard and uses silicone-free grease, which matters in environments where silicone contamination is a concern, such as paint spray booths or certain sensor assemblies.

Key Features

• Push-to-connect plug style seals 8mm OD tubing without tools
• Nickel-plated brass body rated to 300 psi maximum working pressure
• Yellow release button enables fast, repeat tube insertion and removal
• Operating temperature range of 0 degrees F to 200 degrees F
• UL94 V-0 flame resistance rating
• Silicone-free grease — safe for silicone-sensitive environments

Compatibility

Designed as an OEM-style push-to-connect plug for use with 8mm outside diameter tubing in pneumatic and light fluid-handling plumbing systems.

Installation Notes

De-pressurize and bleed the line before installing or removing any push-to-connect fitting. Ensure the tube end is cut cleanly and squarely with no burrs before inserting into the fitting to achieve a proper seal. This fitting is typically installed by licensed plumbers, HVAC technicians, or industrial maintenance professionals following applicable system design codes. To release the tube, depress the yellow release button fully while pulling the tube straight out.