Parker 6 Otx-s Steel Female Branch Tee 3/8 in Od Flare Fnptf

Product Description

The PARKER 6 OTX-S is a steel female branch tee fitting designed for flared tube hydraulic and fluid power systems. It connects flared tube lines to female National Pipe Thread Fuel (NPTF) ports, creating a branch junction in a pressurized circuit. The fitting accepts a 3/8-inch outside diameter tube with a 37-degree flare angle on the tube ends and a 1/4-inch NPTF thread on the female branch port. Rated to 5,000 psi maximum working pressure and capable of handling temperatures up to 500 degrees F, this fitting is suited for high-pressure hydraulic, fuel, and fluid transfer lines. Licensed HVAC technicians, hydraulic system mechanics, and pipefitters typically install this type of fitting.

This fitting is used in industrial and mobile hydraulic systems, fuel delivery circuits, and high-pressure fluid power lines where a branch tee connection is required between a flared tube run and an NPTF-threaded port. The Flare x FNPTF end configuration makes it appropriate for installations that transition between tube-flare and pipe-thread connection standards within the same circuit. It is sold individually and is suitable for both new construction and service replacement applications.

Key Features

• 37-degree flare angle meets SAE J514 and ISO 8434-2 standards
• 5,000 psi maximum dynamic working pressure for high-pressure service
• Rated to 500 degrees F maximum working temperature
• NPTF thread standard provides a dry-seal connection at the branch port
• Steel construction for durability in demanding hydraulic and fluid environments
• Overall length of 2.46 inches for compact installation in tight spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for flared tube hydraulic and fluid power systems requiring a 3/8-inch OD tube connection with a 1/4-inch NPTF female branch port.

Installation Notes

Installation should be performed by a qualified mechanic or pipefitter familiar with high-pressure hydraulic or fluid power systems. De-pressurize and isolate the circuit completely before removing or installing any fittings. Ensure the tube end is properly flared to the 37-degree angle using a calibrated flaring tool before making the connection. Follow SAE J514 assembly procedures and applicable industry codes for torque and tube preparation.