Parker 4 Tlfa-s Seal-lok Tube Fitting Steel Orfs Flat-face

Product Description

The PARKER 4 TLFA-S is a compression tube field attachable Seal-Lok fitting designed for O-ring face seal (ORFS) flat-face connections in hydraulic and fluid system lines. Constructed from steel, this fitting provides a leak-resistant seal at the face using an O-ring rather than a flare or thread-taper interface, making it well-suited for high-pressure fluid lines where reliable sealing is critical. It is installed in the field without special swaging equipment, using the 4 TLFA gauge and 4 TLFA mandrel to achieve a proper tube end form. Hydraulic system technicians and fluid power specialists are the primary installers.

This fitting is used in hydraulic plumbing applications where tube ends must be prepared and connected in the field. The flat-face ORFS design minimizes fluid entrapment at the connection point, making it appropriate for both mobile equipment and stationary hydraulic systems. The field attachable design is particularly useful during repair or retrofit work where pre-swaged fittings are not practical. Compatible tooling includes the 4 TLFA gauge and 4 TLFA mandrel as specified by the manufacturer.

Key Features

• Steel construction for durability in hydraulic service environments
• O-ring face seal flat-face end connection minimizes leakage at the joint
• Field attachable design requires no shop swaging press for installation
• Compatible with the 4 TLFA gauge and 4 TLFA mandrel for proper tube end preparation
• Compression tube fitting end accepts tube without pre-fabricated end forms

Compatibility

Designed for use with the 4 TLFA gauge and 4 TLFA mandrel. Suitable for hydraulic tube line connections requiring an O-ring face seal flat-face interface. Verify tube size and system pressure rating before installation.

Installation Notes

This fitting is installed by licensed hydraulic or fluid power technicians. De-pressurize and lock out the hydraulic system fully before removing any existing fittings or installing this component. Use the specified 4 TLFA gauge and 4 TLFA mandrel to correctly form the tube end prior to assembly. Ensure the O-ring is properly seated and lubricated with compatible fluid before making the final face seal connection, and inspect for leaks after system re-pressurization.