A run tee connects a threaded machine port to a two-direction tubing run. Its geometry helps route lines alongside a cylinder, valve bank or manifold.

The distinction is the position of the threaded leg relative to the two tubing outlets. Check the fitting orientation and installation space instead of selecting from the word “tee” alone.

BD3/8-N3 uses 3/8 in outside-diameter tubing with a 3/8 NPT connection. Tube OD, thread standard and port size all need to match.

Confirm flow demand for the branches, maintain tube bend radii, keep the tube-release collars accessible and seal the thread with a suitable method.

The published all-metal B-Series range is specified for compressed air and vacuum service, subject to compatible tubing, proper sealing and the limits of the assembled system. Other fluids need separate compatibility confirmation.

The published fitting-family limits extend from full vacuum to 176 psi (12 bar, as listed for the fitting family), with a fitting temperature range of -40 to +248 °F (-40 to +120 °C). Actual system limits also depend on tubing, seals and installation; do not treat these as fluid-compatibility certifications.