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The NORGREN C00200400 is a push-to-connect straight union tube fitting designed to join two tube ends in a single inline connection without tools or fittings requiring wrench tightening. Constructed from brass with a nitrile O-ring seal, it handles working pressures up to 150 psi and operating temperatures ranging from 0 degrees F to 175 degrees F. The fitting accepts tubing with a 4mm outside diameter and has an overall length of approximately 34.60mm. It is suited for pneumatic plumbing lines, instrumentation tubing, and fluid conveyance applications where fast, repeatable connections are required.
This fitting is used in light industrial, commercial, and mechanical systems where small-diameter tubing must be joined inline. Typical applications include pneumatic control circuits, compressed air distribution, and instrumentation lines. The push-to-connect mechanism allows for quick field assembly and disassembly, making it practical for maintenance technicians and pipefitters working on pneumatic or fluid handling systems. Sold individually as a single-piece package.
Designed as an OEM-style push-to-connect union fitting for 4mm outside diameter tubing used in pneumatic and fluid conveyance systems.
Installation is performed by pipefitters or pneumatic system technicians. Depressurize and isolate the line before disconnecting or installing fittings. Ensure tubing ends are cut cleanly and squarely with no burrs before inserting into the fitting to maintain a proper O-ring seal. Verify the tubing outside diameter is confirmed at 4mm before installation, as mismatched tubing will compromise the connection and may result in leaks.
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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