Parker PT-00451 Bite-type Progressive Ring 8mm Steel

Product Description

The PARKER PT-00451 is a flareless bite-type progressive ring designed for use in high-pressure hydraulic and instrumentation tube fittings. This steel ring seats and bites into the outer wall of an 8 mm OD tube during assembly, creating a leak-resistant, vibration-tolerant connection without the need to flare the tubing. It is rated for a maximum working pressure of 500 bar and measures 9 mm in overall length. Installation is performed by licensed plumbers, hydraulic technicians, and instrumentation mechanics working on steel tube assemblies in industrial, mobile, or process-control systems.

This progressive ring is suited for high-pressure tube connections in industrial and commercial applications. The flareless bite-type design eliminates the need for tube flaring operations on-site, making it a practical choice for field assembly and maintenance work on hydraulic circuits, fluid power systems, and instrumentation lines that require reliable, high-pressure tube terminations. The ring is compatible with 8 mm OD tube in flareless fitting systems.

Key Features

• Flareless bite-type design eliminates on-site tube flaring
• Rated for maximum working pressure of 500 bar
• Steel construction for durability in high-pressure environments
• 8 mm tube OD sizing for precise fitment in metric tube systems
• Compact 9 mm overall length for tight installation spaces
• Sold in packages of 10 rings per unit

Compatibility

Designed as an OEM-style replacement or service component for flareless bite-type tube fitting assemblies using 8 mm OD steel tubing in high-pressure hydraulic and instrumentation systems.

Installation Notes

Installation should be performed by a qualified hydraulic technician or licensed plumber familiar with flareless tube fitting assembly procedures. Depressurize and isolate the hydraulic or fluid system completely before disassembly or fitting replacement. Follow the fitting manufacturer's assembly torque and presetting procedure for bite-type rings to ensure proper bite engagement without over-tightening. Applicable work should conform to relevant fluid power and plumbing codes for the jurisdiction and system pressure class.