| Customization: | Available |
|---|---|
| Standard: | DIN, ANSI, GB |
| Material: | Medium Carbon Steel |
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Insulated Joints (also referred to as "Isolation Joints" or "Insulating Joints") are available in sizes ranging from 2" thru 48" and pressure ranging from ANSI 150 to ANSI 900.
Monolithic Insulated Joints electrically isolate sections of pipeline to prevent corrosion caused by stray electrical currents or interference from other pipelines and power transmission cables. Three features assure electrical isolation:
The weld end hubs of our Insulating joints are provided in compliance with the customer's piping specification. Optional extra-length pipe pups (provided by the customer) can be included in the completed joint.
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.
Kingmetal steel is fully qualified to provide in-house Magnetic Particle, Ultrasonic, and Liquid Penetrant examination along with NDE test reports to meet customer requirements.
Each joint manufactured by KINGMETAL 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 required for the entire service life of the insulating joint.
These connections are known in the pipeline industry by various terms such as the following:
Insulated joints material
ASTM A694/ASME SA105 or SA106 GrB, Gr C, API5L X52,X60,X65,ASTM 707 etc
Materials for standard joints
|
Pipe Pups |
API 5L (X52 in Larger sizes) |
|
steel sections |
Forgings or steel rings to ASTM A694(F52),DIN1629(ST52) or UNI 7729(Fe 510) |
|
sealing gasket |
Nitrile O-rings |
|
insulating rings |
Glass or fabric reinforced epoxy |
|
Dielectric filler |
epoxy resin |
|
External coating, internal lining |
epoxy resin,150 mircrons DFT |
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