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The LEGRIS 3626 12 00 is a push-to-connect plug-in tube fitting designed to seal off a 12mm outside diameter (OD) tube end in pneumatic and fluid distribution lines. Constructed from nickel-plated brass, this plug fitting provides a maximum working pressure rating of 435 psi and handles fluid and gas service across a broad temperature range of -4 degrees F to 302 degrees F. The push-to-connect mechanism allows for fast, tool-free installation, making it a practical choice for plumbers, HVAC technicians, and industrial pipefitters who need to cap or terminate a tube run quickly and securely.
This fitting is suitable for both liquid and gas service, making it appropriate for residential and light commercial pneumatic systems, compressed air lines, hydraulic distribution circuits, and process fluid applications. The FKM O-ring provides reliable sealing compatibility with a range of media. The plug style is used whenever a tube port needs to be capped, a branch needs to be closed off during servicing, or a system is being staged for future expansion. Its compact overall length of approximately 1.69 inches (43mm) keeps the installation profile low in tight manifold or panel environments.
Designed for use with 12mm OD tubing in liquid and gas service lines. Suitable as a plug or cap fitting in pneumatic, compressed air, and process fluid distribution systems that require push-to-connect termination points.
This fitting is installed by licensed pipefitters, HVAC technicians, or plumbers working on pressurized fluid or gas systems. Before installing or removing this plug, depressurize and isolate the affected line segment in accordance with system lockout/tagout procedures. Ensure the tube OD is cut cleanly and squarely, and that the tube end is free of burrs or debris before insertion to maintain a proper seal. Verify that the working pressure and temperature of the application do not exceed the fitting ratings prior to placing the system back into service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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