Parker FBMT-664 Compression Male Branch Tee 3/8 in Od

Product Description

The PARKER FBMT-664 is a compression tube male branch tee fitting designed for use in fluid and gas distribution lines where a branch connection to a male NPT port is required. It accepts 3/8 inch tube outside diameter on the tube connections and threads into a 1/4 inch NPT female port. The body is constructed from PFA (Perfluoroalkoxy) with PTFE (Polytetrafluoroethylene) components, making it well-suited for aggressive chemical media and high-purity fluid handling applications. The compression-style grip is plastic. This fitting is typically installed by licensed plumbers, HVAC technicians, or instrumentation specialists working on tubing systems that require a reliable, leak-resistant branch connection without soldering or welding.

The FBMT-664 is used in residential and commercial fluid handling systems, laboratory plumbing, chemical processing lines, and HVAC instrumentation tubing runs. Its PFA and PTFE construction makes it appropriate for applications involving corrosive or ultra-pure media where metal fittings are not suitable. It is sized for 3/8 inch OD tubing paired with a 1/4 inch NPT branch port, a common configuration in instrumentation and light process piping.

Key Features

• PFA and PTFE construction for chemical resistance and high-purity compatibility
• Compression-style connection on tube ends — no soldering or brazing required
• 3/8 inch tube OD with 1/4 inch NPT male branch port
• Plastic grip-style compression mechanism for secure tube retention
• Single-piece branch tee configuration simplifies tubing layout at junction points

Compatibility

Designed as an OEM-style compression fitting for tubing systems using 3/8 inch OD tubing and 1/4 inch NPT female threaded ports in fluid, gas, or instrumentation distribution lines.

Installation Notes

This fitting is installed by plumbers or instrumentation technicians working on tubing systems. Shut off all fluid or gas supply and depressurize the line before disassembly or installation. Ensure tubing is cut cleanly and squarely and is free of burrs before inserting into the compression fitting. Verify NPT thread engagement and use appropriate thread sealant compatible with PFA and PTFE materials; follow applicable IPC or system-specific piping codes.