Parker 12-12 Gbz-b 3/4 in Compression X Fnpt Brass Connector

Product Description

The PARKER 12-12 GBZ-B is a straight compression tube connector designed for joining tubing to female NPT threaded ports in fluid and gas distribution systems. Built from brass conforming to ASTM-B-453 and ASTM-B16 standards, this fitting accepts a 3/4 inch compression connection on one end and a 3/4 inch FNPT threaded port on the other. With a maximum working pressure of 1900 psi and an overall length of 1.96 inches, it is suited for moderate- to high-pressure plumbing, HVAC, and industrial service lines. Licensed plumbers, pipefitters, and HVAC technicians install this type of fitting in refrigerant, water, and compressed-air piping runs.

This connector is appropriate for residential and light commercial applications where copper or brass tubing must terminate at a threaded female port. Typical uses include chilled water lines, compressed air distribution, hydronic heating systems, and refrigeration service piping. The compression-to-FNPT configuration eliminates the need for soldering or brazing at the tubing end, making it practical for retrofit work or service calls where open flame is not permitted or preferred. The Swagelok-equivalent part number for cross-reference is B-1210-7-12.

Key Features

• Compression x FNPT straight configuration for direct tubing-to-threaded-port connection
• Brass construction per ASTM-B-453 and ASTM-B16 for corrosion resistance and pressure integrity
• 1900 psi maximum working pressure rating
• 3/4 inch thread size on both connection ends
• Compact 1.96 inch overall length for tight installation spaces
• No-solder compression end reduces installation time in retrofit and service applications

Compatibility

Cross-references to Swagelok part number B-1210-7-12. Designed as an OEM-style replacement or direct-install fitting for systems requiring a 3/4 inch compression-to-FNPT straight connector in brass construction.

Installation Notes

Installation of compression fittings should be performed by a licensed plumber or pipefitter following applicable IPC and local plumbing code requirements. Shut off and depressurize the system fully before disassembly or fitting installation. Do not overtighten the compression nut, as brass ferrules can crack or deform under excessive torque. Inspect tubing ends for squareness and burrs before seating the ferrule to ensure a leak-free seal.