A-Lok Tube Fittings
A-Lok Tube Fittings for Secure Connections
A-Lok fittings are a double ferrule, bite type compression tube fitting design used to make leak free connections in instrumentation, process, and analyzer tubing systems. The two ferrule design grips and seals the tube without welding or flaring, which makes A-Lok fittings a common choice where tubing runs need to be assembled, disassembled, and remade in the field.
A-Lok fittings hold up under repeated remakes, resist vibration loosening, and provide a reliable seal across the pressure and temperature ranges typical of instrumentation tubing systems. These fittings are suitable for new tubing installations, panel builds, and maintenance replacement on existing instrumentation runs.
Shop Relevant carries A-Lok tube fittings across common sizes and materials used in instrumentation and process tubing, including straight, elbow, tee, and adapter configurations for building out or servicing a tube run. Ships same day.
Frequently Asked Questions
What does A-Lok mean on a tube fitting?
A-Lok is a double ferrule, bite type compression tube fitting design used for leak free connections in instrumentation and process tubing, without requiring welding or tube flaring.
Are A-Lok fittings interchangeable with other two ferrule tube fitting brands?
Many two ferrule compression fitting designs share similar dimensional standards, but exact interchangeability should be confirmed against the specific fitting series before mixing brands on a sealed system.
