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The PARKER XW171PLP-4-2 is a push-to-connect male run tee tube fitting made from nickel-plated brass. It is designed for inline tube runs that require a branch connection to a male NPT port, allowing a single fitting to serve three connection points without soldering, flaring, or additional fittings. The fitting accepts 1/4 inch OD tubing on both tube ports and connects to a 1/8 inch NPTF male thread on the branch. Maximum working pressure is 300 psi. The operating temperature range spans 0 degrees F to 200 degrees F, making it suitable for a range of fluid and pneumatic control applications. HVAC technicians, plumbers, and instrumentation installers are the primary trades that work with this fitting type.
This fitting is used in residential and light commercial applications where tubing runs require a tee branch into a threaded male port. Typical installation scenarios include pneumatic control lines, low-pressure fluid distribution systems, refrigeration sensing lines, and HVAC condensate or control tubing. The push-to-connect design allows fast, tool-free tube insertion on both run ends, reducing labor time during rough-in and service calls. The NPTF thread on the branch port provides a pressure-tight mechanical seal when properly engaged.
Designed as an OEM-style replacement or new-installation fitting for pneumatic, fluid control, and HVAC tubing systems using 1/4 inch OD tubing and 1/8 inch NPTF male threaded ports.
Installation should be performed by a qualified HVAC technician, plumber, or instrumentation technician. Depressurize and isolate the system completely before removing or installing any fitting. Ensure tubing is cut square and deburred before insertion into the push-to-connect ports to achieve a proper seal. Thread engagement on the NPTF branch port should be made hand-tight then wrench-tightened per standard practice; do not overtighten, as NPTF threads rely on thread deformation for sealing and can crack brass fittings if over-torqued.
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