Application: Pig signallers are fitted to launcher and receiver units to confirm the launch / arrival of a pig. They can also be at any location along the pipeline length to give indication of a pig at a specific location. They can be used to detect the passage of all types of pigs from foams, spheres and metal bodied pigs to intelligent inspection tools.
Category: intrusive and non-intrusive
1. Mechanical / visual (a local flagged indicator)
2. Electrical (magnetically linked proximity switch provides an electrical signal to a controller)
We offer 3 basic types of signaller:
1. Welding boss mounted
2. Flange mounted signaller
3. Ball valve mounted signaller