Monolothic Insulated Joints


Insulated Joints are available in sizes ranging from 2" thru 48" and pressure ranging from ANSI 150 to ANSI 900.

Tube Turns Monolothic Insulated Joints electrically isolate sections of pipeline to prevent corrosion caused by stray electrical currents or interference from other pipelines and power transmission cables.  Electrical isolation is assured by three features: a) insulated gasketing that prevents metal-to-metal contact across the joint, b) internal cavities filled with a special dielectric compound, and c) internal and external surfaces coated with two (2) coats of non-conductive epoxy paint, or coating per the customer’s specification.  Insulating joint hubs are provided in compliance with the customer’s piping specification, and optional extra-length pipe pups (provided by the customer) can be included in the completed joint.

Tube Turns’ Monolithic Joints feature a pre-fabricated, non-separable,  and bolt-less design to satisfy customers that require a  single-piece construction for simplicity of installation, elimination of maintenance, and ease of final wrapping and coating after  installation  in the pipeline.  Pressure Fatigue-, Torsion- and Bending-proof testing of the design was carried out to provide a design that is physically stronger than the pipe to which it is attached.

Tube Turns is fully qualified in house to provide Magnetic Particle, Ultrasonic, and Liquid Penetrant examination along with NDE test reports to meet customer requirements.

Each joint manufactured by Tube Turns is completely factory assembled and hydro-statically tested to 1.5 times the working pressure before shipment. .  In addition, each joint is electrically tested to verify its insulating capability. No maintenance or parts replacement is required for the entire service life of the insulating joint