Parker 4 Tu-s Flareless Bite-type Tube Ferrule 1/4 in Steel

Product Description

The PARKER 4 TU-S is a flareless bite-type tube ferrule designed for use in compression-style tube fittings where a reliable, leak-resistant seal is required without flaring the tube end. Manufactured from steel, this ferrule measures 0.36 inches overall length and fits tubing with a 1/4-inch outside diameter. The 24-degree flare angle conforms to standard flareless fitting geometry. It is a small but critical component in hydraulic, pneumatic, and instrumentation tubing assemblies, and is installed by pipefitters, hydraulic technicians, and instrumentation specialists working on fluid or gas conveyance systems.

This ferrule is suited for use in industrial, commercial, and mechanical system applications where flareless compression fittings are specified. It is commonly installed in instrument tubing lines, hydraulic control circuits, and compressed gas distribution systems. The steel construction makes it appropriate for moderate-pressure service in environments where corrosion resistance is not the primary design driver. It is sold individually but carries a minimum order quantity of 5 units.

Key Features

• Flareless bite-type design eliminates the need to flare tube ends before assembly
• 1/4-inch tube OD sizing for standard small-bore instrument and hydraulic tubing
• 24-degree flare angle matches standard flareless fitting specifications
• Steel construction provides strength for moderate-pressure applications
• 0.36-inch overall length fits within compact fitting assemblies
• Minimum order quantity of 5 units supports maintenance and repair stocking

Compatibility

Designed as an OEM-style replacement or maintenance component for flareless bite-type tube fitting assemblies accepting a 1/4-inch tube OD steel ferrule with a 24-degree flare angle.

Installation Notes

Installation is typically performed by licensed pipefitters, hydraulic technicians, or instrumentation mechanics. Shut off and depressurize the tubing system completely before disassembling any fittings or replacing ferrules. Follow the fitting manufacturer's assembly instructions for the correct number of turns to seat the ferrule bite properly. Reuse of previously compressed bite-type ferrules is generally not recommended, as the deformed ferrule geometry may not reseal reliably.