Parker 4-4-4 Rtx-s Steel Flared Male Run Tee 1/4 in

Product Description

The PARKER 4-4-4 RTX-S is a steel male run tee fitting designed for flared tube connections in high-pressure hydraulic and fluid systems. It features a 37-degree flare angle with flare by male NPTF (MNPTF) end connections, making it compatible with standard SAE flared tube assemblies. The fitting is rated for a maximum working pressure of 6000 psi and a maximum working temperature of 500 degrees F (260 degrees C). With an overall length of 2.18 inches and a tube OD of 1/4 inch, this compact tee is suited for tight plumbing runs where a branch takeoff is required without interrupting the main line flow path.

This fitting is used in residential and commercial hydraulic, pneumatic, and refrigeration piping systems wherever a 1/4 inch flared tube line requires a male-threaded branch connection. It is typically installed by licensed plumbers, HVAC technicians, and hydraulic system specialists working on fuel, oil, air, or refrigerant lines that operate within the rated temperature and pressure limits. The run tee configuration allows the main tube run to pass straight through while the branch connects via a 1/4 MNPTF threaded port, reducing the need for additional adapters in the assembly.

Key Features

• 37-degree flare angle meets SAE J514 and ISO 8434-2 standards for flared tube fittings
• Maximum working pressure of 6000 psi for demanding high-pressure applications
• Rated to 500 degrees F (260 degrees C) maximum working temperature
• Flare by MNPTF end connections allow direct transition from flared tube to NPT-threaded port
• Steel construction provides durability in fuel, oil, and hydraulic fluid service
• Compact overall length of 2.18 inches fits restricted plumbing envelopes

Compatibility

Designed as an OEM-style replacement or service fitting for 1/4 inch OD flared tube assemblies using SAE 37-degree flare connections with NPTF-threaded branch ports in hydraulic, pneumatic, and fluid transfer systems.

Installation Notes

Installation should be performed by a qualified technician familiar with flared tube fitting assembly procedures. De-pressurize and isolate the system completely before disassembling any fittings or tube connections. Ensure tube ends are properly flared to 37 degrees using a calibrated flaring tool before seating into the fitting to avoid leaks. Thread engagement on the MNPTF port should follow applicable industry standards, and system pressure should be verified against the 6000 psi maximum rating before returning the system to service.