Parker 3 Jbu-s Flareless Bite-type Tube Union Tee 3/16 in

Product Description

The PARKER 3 JBU-S is a flareless bite-type tube union tee fitting designed to create a leak-resistant three-way junction in tubing systems without requiring flared tube ends. The bite-type design uses a ferrule that bites into the tube OD during assembly, creating a secure mechanical grip and seal. This fitting is sized for 3/16 inch tube OD and carries an NPTF thread size of 3/16 inch, making it suitable for hydraulic, instrumentation, and fluid transfer lines where a reliable, compact union tee connection is needed. Licensed plumbers, pipefitters, and instrumentation technicians are the typical installers.

This fitting is used in residential and commercial fluid system applications where a three-way branch connection is required in a small-diameter tubing run. Typical installations include hydraulic control lines, fuel systems, and instrumentation tubing where flareless connections are preferred for their ease of assembly and consistent sealing performance. The compact form factor suits tight routing situations common in equipment panels and control enclosures.

Key Features

• Flareless bite-type design eliminates the need to flare tube ends prior to assembly
• Union tee configuration allows a three-way branch in a single fitting body
• 3/16 inch tube OD sizing suits small-diameter hydraulic and instrumentation lines
• NPTF thread type provides a pressure-tight thread seal without relying solely on a sealant
• Single-piece package quantity supports low-volume service and replacement work

Compatibility

Designed as an OEM-style replacement or service fitting for flareless bite-type tubing systems using 3/16 inch OD tubing with NPTF threaded ports.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or instrumentation technician familiar with flareless compression-style fittings. Depressurize and isolate the tubing circuit completely before disassembling or installing any fitting. Follow the fitting manufacturer assembly procedure for ferrule pre-swaging to ensure proper bite engagement on first make-up. Verify thread compatibility and apply appropriate thread sealant per the system fluid and pressure requirements before torquing the connection.