Parker 4-4 Clo-s Male Elbow 1/4-18 Nptf Orfs 6000 Psi

Product Description

The PARKER 4-4 CLO-S is a compression tube male elbow fitting designed to connect a 1/4-inch OD tube to a 1/4-18 NPTF male threaded port using an O-Ring Face Seal (ORFS) interface. Constructed from zinc-plated steel, this fitting delivers a rated working pressure of 6000 psi, making it suitable for high-pressure hydraulic and fluid power plumbing applications. The 90-degree elbow orientation allows routing changes in tight spaces without bending tubing. Licensed plumbers, hydraulic system technicians, and industrial maintenance mechanics install this type of fitting in both mobile and stationary hydraulic systems.

This fitting is used in hydraulic lines, lubrication systems, and fluid transfer assemblies where a reliable tube-to-port transition is required. The ORFS end connection provides a leak-resistant metal-to-metal seal supplemented by an O-ring, a preferred design in high-pressure hydraulic circuits. The NPTF thread on the male end creates a pressure-tight joint by thread interference rather than relying solely on sealant. Typical applications include industrial machinery, mobile equipment hydraulics, and high-pressure fluid distribution panels.

Key Features

• Rated to 6000 psi maximum working pressure for demanding hydraulic service
• ORFS x NPTF end connections for leak-resistant tube-to-port transitions
• Zinc-plated steel construction provides corrosion resistance in moderate service environments
• 1/4-inch tube OD compression end with 1/4-18 NPTF male thread
• 90-degree elbow configuration allows directional routing changes in confined spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for hydraulic and fluid power systems requiring a 1/4-inch OD tube compression connection to a 1/4-18 NPTF threaded port with an ORFS interface.

Installation Notes

Installation should be performed by a qualified hydraulic technician or licensed plumber familiar with high-pressure fluid systems. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. NPTF threads are designed to seal by thread engagement; apply appropriate thread sealant per system requirements and the applicable fluid power or plumbing code. Do not overtighten the compression end, as this can deform the tube and compromise the seal.