Parker 4 Jlo-s Compression Tube Union Orfs 1/4 in 9200 Psi

Product Description

The PARKER 4 JLO-S is a compression tube union with O-Ring Face Seal (ORFS) end connections, constructed from steel. It connects two tube ends in a single inline fitting, providing a leak-resistant joint suited for high-pressure hydraulic and fluid-power lines. With a maximum working pressure of 9200 psi and a tube outside diameter of 1/4 inch, this union is built for demanding service environments where reliable sealing and pressure integrity are required. Licensed plumbers, pipefitters, and hydraulic system technicians are the primary installers of this fitting type.

This fitting is used in hydraulic systems, fluid power circuits, and industrial plumbing applications where ORFS connections are specified. The ORFS interface creates a metal-to-metal contact with an O-ring seal at the face, minimizing the risk of leakage under pressure cycling and vibration. It is appropriate for both OEM assembly and field service work on equipment requiring 1/4 inch tube connections at pressures up to 9200 psi.

Key Features

• O-Ring Face Seal end connections on both ends for leak-resistant performance under pressure
• Maximum working pressure of 9200 psi for demanding hydraulic and fluid-power service
• 1/4 inch tube outside diameter for precise, secure tube engagement
• Steel construction for durability and compatibility with a wide range of hydraulic fluids
• Inline union design joins two tube ends without fittings of differing types

Compatibility

Designed as an OEM-style replacement or field-service fitting for hydraulic and fluid-power systems requiring 1/4 inch OD tube with O-Ring Face Seal connections rated to 9200 psi.

Installation Notes

Installation should be performed by a qualified pipefitter, hydraulic technician, or licensed plumber following applicable system and safety codes. Depressurize and isolate the hydraulic circuit fully before disconnecting or installing any fittings. Inspect the O-ring seating surface for nicks or contamination before assembly, as surface defects will compromise the seal. Torque to the system or fitting manufacturer specifications using calibrated tooling.