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ClampOn PIG Detection and PIG Signalling

Non-intrusive pig detection without compromise

Detect every pig in any pipeline without modifying the pig or the pipe.
Gain real time insight from outside the pipeline, designed for critical operations where reliability is essential.

Go beyond detection and understand pipeline behavior

ClampOn delivers highly reliable pig detection and pig signalling using advanced ultrasonic sensing combined with optional magnetic verification. The system operates fully externally and does not require any modification of the pig or the pipeline.

The solution also supports broader pipeline monitoring by providing continuous data that helps operators understand flow conditions and system behaviour over time.

This gives operators consistent, accurate detection across all pipeline conditions.

Why it matters

Accurate pig detection and pig signalling reduce operational uncertainty, improve safety and help prevent costly downtime in critical pipeline systems.

Why ClampOn pig detection and pig signalling stand out:

Works with any pig
ClampOn detects all pig types, including foam pigs, spheres and intelligent inspection tools. There is no need for magnets or any modification. This makes it ideal for inspection campaigns and third party tools. Independent of the pig. Reliable in every scenario.


Fully non-intrusive installation
The system is mounted externally using a clamp on solution. No welding. No hot work. No intervention in the pipeline. This reduces risk and protects pipeline integrity, especially in offshore and brownfield environments. Nothing enters the pipeline. No compromise on safety.


Dual detection for added certainty
Ultrasonic detection forms the foundation of the system. Magnetic sensing can be added when additional verification is needed. Intelligent signal processing filters noise and reduces false indications. Not just detection. Detection you can trust.


Real time data, not just a signal
ClampOn provides instant detection of pig passage and continuous signal monitoring. Operators can follow signal patterns and understand flow conditions; not just confirm that a pig has passed. With ClampOn software you enable the data to be seen on client's laptop, control room or handheld devices. More than confirmation. Real operational insight.

Trusted in the field

Trusted in many installations across offshore and subsea pipelines, ClampOn pig detection and pig signalling technology are proven in demanding environments where accuracy and reliability are critical.

Traditional pig detectors compared to ClampOn

Traditional pig detectors and signalling systems often depend on magnets in the pig, may require pipeline intervention during installation, and typically only deliver a simple pass or no pass signal. In addition, these traditional detection technologies are often intrusive, mechanically complex and limited in capability.

ClampOn requires no pig modification, installs externally, and provides continuous real time data. It works across all pig types and removes the need for intrusive installation.

Upgrade from detection to certainty.

Built for critical pipeline operations

ClampOn PIG Detector and PIG Signalling technology is used in:

  • Offshore and subsea systems
  • Onshore operations
  • Brownfield upgrades and retrofits
  • High risk and high value pipelines
  • Inspection (ILI) campaigns
  • Applications where pig modification is not possible

ClampOn DSP PIG Detector

An advanced pig detector and pig signalling solution using ultrasonic sensing and intelligent signal processing. Designed to detect all pig types in real time from outside the pipeline. Available as Ex ia, Ex d, subsea and wireless solutions.

Designed to remove uncertainty

Conventional pig detectors confirm that a pig has passed.
ClampOn is designed to give operators confidence in every situation.

Frequently asked questions

What is pig detection in pipelines


Pig detection is the process of identifying when a pig passes a specific point in a pipeline. It is used to track cleaning, inspection, and separation tools during operation, and to ensure safe and efficient pipeline management.

What is pig signalling and how is it different from pig detection


Pig signalling refers to the indication or communication that a pig has passed a certain location. In many systems this is a simple signal. ClampOn combines pig detection and pig signalling by not only confirming passage, but also providing real time data that helps operators understand what is happening in the pipeline.

How does non-intrusive pig detection work


Non-intrusive pig detection is performed from the outside of the pipeline. ClampOn uses ultrasonic sensing to detect acoustic changes as a pig moves through the pipe wall. This allows accurate detection without any need to modify the pig or install hardware inside the pipeline.

Do I need to modify the pig for detection or signalling?


No. ClampOn works with all pig types without requiring magnets or any other modifications. This makes the solution suitable for inspection campaigns, third party pigs, and operations where modification is not possible.

When should I use pig signalling in pipeline operations?


Pig signalling is important in operations where timing, safety, and coordination are critical. This includes offshore systems, subsea pipelines, and high value assets where operators need to know exactly when a pig passes specific points in the system.

What are the advantages of external pig detection and signalling?


External solutions avoid welding, hot work, and pipeline intervention. This reduces risk, simplifies installation, and protects pipeline integrity. It is especially valuable in brownfield installations and offshore environments.

Can pig detection provide more than just a pass signal?


Yes. Advanced pig detection systems like ClampOn provide continuous data, not just a pass or no pass signal. This enables better pipeline monitoring, allowing operators to follow signal patterns and gain insight into flow conditions.

Is pig detection reliable in challenging conditions?


ClampOn pig detection and pig signalling are designed for demanding environments. The combination of ultrasonic sensing and optional magnetic verification ensures reliable performance across varying pipeline conditions.

Talk to an expert about your pipeline setup

Request a demonstration of ClampOn pig detection and pig signalling. See how the system performs in your application.

Contact us at sales@clampon.com

Additional information about ClampOn PIG Detection