Parker 8-4 Trlon-s Tube End Reducer Orfs Steel 1/2x1/4

Product Description

The PARKER 8-4 TRLON-S is a steel compression tube end reducer with O-Ring Face Seal (ORFS) end connections, designed to transition between two different tube outside diameters in high-pressure hydraulic and fluid power lines. It connects a 1/2-inch tube to a 1/4-inch tube and is rated to a maximum working pressure of 9,200 psi. The ORFS interface provides a leak-resistant metal-to-metal seal backed by an O-ring, making it well-suited for applications where system integrity under pressure cycling is critical. Licensed hydraulic technicians, millwrights, and fluid power specialists are the primary installers of this fitting.

This fitting is used in industrial hydraulic systems, mobile equipment fluid circuits, and high-pressure tubing assemblies where a reduction in tube size is required at a connection point. The UNF thread standard and ORFS end connection type are common in OEM hydraulic plumbing and aftermarket service work across construction, agricultural, and manufacturing equipment platforms. The steel construction handles demanding pressure environments and is compatible with standard hydraulic fluid media.

Key Features

• Reduces 1/2-inch tube outside diameter to 1/4-inch tube outside diameter in a single fitting
• O-Ring Face Seal (ORFS) end connections provide leak-resistant sealing under high pressure
• Rated to 9,200 psi maximum working pressure
• Steel construction for durability in industrial and mobile hydraulic environments
• UNF thread standard for broad compatibility with standard hydraulic hardware

Compatibility

Designed as an OEM-style replacement or service fitting for high-pressure hydraulic tubing assemblies using O-Ring Face Seal connections and UNF threading in industrial and mobile equipment applications.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist. Depressurize and isolate the hydraulic circuit completely before removing any existing fittings or tubing. Inspect the O-ring sealing surface for nicks or contamination prior to assembly, and use a fresh, properly seated O-ring to ensure a leak-free connection. Follow equipment manufacturer torque guidelines and applicable fluid power standards during installation.