MEST™ mechanical electrically insulating connection of pipelines

Mechanical electric insulating connection of pipelines (MEST™) is designed for electrical separation of pipelines from other underground structures. Electrical isolation is carried out for the purpose of elimination or limiting stray currents in the pipeline, induced by DC or AC earthing devices in high-voltage power lines, as well as to eliminating the dissipation of protective currents of electrochemical (mainly protector) protection.

Manufacturing options

1. MEST for MPT pipelines (MPTK) (metal-plastic pipes / metalplastic corrosion resistant pipes).
2. MEST for pipelines of other designs (pipes with external polymer coating, with internal polymer coating, steel pipes).

Introducing connections ensures

• No impact of induced currents in the common pipeline on the operation of accurate and expensive metering devices.
• Elimination of discharges over the course of operation of pipelines in explosion-hazardous premises.
• Elimination of dissipation of protective currents of electrochemical protection of equipment.

Advantages

• Installation is simple and does not require special devices.
• Operational reliability due to simple design.
• Short payback period by reducing the cost of repair or replacement of expensive metering equipment.
• No maintenance required.
• Can be installed anywhere in the pipeline.
• Service life of at least 15 years.

End preparation options

1. Under welded joint.
2. For welded joint with corrosion-resistant steel tips.