Parker PT-00856 Bite-type Tube Union Elbow 8mm Steel

Product Description

The PARKER PT-00856 is a flareless bite-type tube union elbow designed to create a secure, leak-resistant 90-degree connection between two tube runs without the need for flared ends. The fitting uses a bite-type ferrule mechanism that grips and deforms the tube wall on tightening, forming a reliable metal-to-metal seal. Constructed from steel, this union elbow is rated for a maximum working pressure of 500 bar, making it suitable for high-pressure hydraulic and instrumentation tubing circuits. It accepts 8 mm outside diameter tubing. Licensed plumbing and pipefitting tradespeople, hydraulic system technicians, and industrial instrumentation specialists are the primary installers of this type of fitting.

This fitting is used in hydraulic control lines, fluid power systems, and instrumentation tubing installations where a directional change is required in the tube run. The flareless bite-type design is common in industrial, OEM, and mobile equipment applications where vibration resistance and high operating pressures are critical. It is appropriate for both new installation and repair work on steel tube assemblies operating at elevated pressures.

Key Features

• Flareless bite-type ferrule design eliminates the need for tube flaring tools at installation
• Union elbow configuration allows a 90-degree directional change between two tube ends
• Steel construction supports a maximum working pressure of 500 bar
• Accepts 8 mm outside diameter tubing on both ports
• Compact form factor suited for tight routing in hydraulic and instrumentation panels

Compatibility

Designed as an OEM-style replacement or new-installation fitting for steel tube hydraulic and instrumentation systems using 8 mm outside diameter tubing routed with flareless bite-type connections.

Installation Notes

Installation should be performed by a qualified hydraulic or pipefitting technician familiar with flareless bite-type fitting assembly procedures. Depressurize and isolate the hydraulic or fluid system completely before disassembling any tube connections. Follow the fitting manufacturer's presetting procedure for bite-type ferrules to ensure the ferrule seats correctly on the tube before the fitting is placed in service. Do not overtighten; refer to the applicable industrial piping standard for assembly turn specifications relevant to this fitting size class.