Parker 6 Pnbz-ss Compression Tube End Cap 3/8 in Ss

Product Description

The PARKER 6 PNBZ-SS is a compression-style tube end cap designed to seal the open end of a 3/8-inch outside diameter tube. Machined from stainless steel, it provides a clean, leak-tight termination without requiring welding, flaring, or additional fittings. The compression fitting design allows for straightforward installation and removal in systems where tube ends must be capped, isolated, or temporarily plugged. Rated to a maximum working pressure of 6600 psi, this end cap is suited for high-pressure instrumentation, hydraulic, and fluid-transfer lines where corrosion resistance and pressure integrity are both required.

This end cap is used in industrial, commercial, and mechanical systems where stainless steel compression fittings are specified. Typical applications include instrumentation tubing, process fluid lines, and pneumatic or hydraulic circuits that require a reliable, pressure-rated seal at a tube terminus. It is installed by plumbers, pipefitters, and instrumentation technicians working on high-pressure fluid systems in industrial plants, refineries, and commercial mechanical rooms.

Key Features

• Compression fitting end cap seals 3/8-inch OD tubing without welding or special tooling
• Stainless steel construction resists corrosion in harsh or wet process environments
• Maximum working pressure of 6600 psi suits high-pressure instrumentation and hydraulic applications
• Reusable compression design allows tube end to be uncapped and recapped during service
• Compact form factor fits tight installations where space is limited

Compatibility

Designed as an OEM-style compression fitting for use with 3/8-inch outside diameter tubing in stainless steel compression fitting systems.

Installation Notes

Installation is performed by a licensed pipefitter or instrumentation technician. Depressurize and isolate the line completely before removing or installing any compression fitting. Tighten the compression nut by hand first, then advance with a wrench per the fitting manufacturer torque guidance for the tube material in use. Follow applicable piping codes, including ASME B31.3 for process piping, when integrating this fitting into pressurized systems.