The pigging system consists of elastic projectiles (“pigs”) with a diameter slightly larger than the pipeline carrying the liquid. The pigging process introduces a pig into the pipeline. (usually automatically). and push it through the pipe. A pig is pushed through a pipeline by pressurizing the piping system behind it. Compressed air, carbon dioxide, nitrogen, freshwater or even the next product (depending on the application) provide the pressure. The liquid residue in the pipeline is recovered. Instead of flushing down drains, waste disposal, or collection areas: Propelled by pipe cleaners. and forced into the fill or storage tank at the destination, or returned to the source. Processing then continues with the remaining product.

In the pipeline pigging operation, we usually install the Pipeline Pig Signaller on the incoming and outgoing pipelines of long-distance pipelines. Because after long-term use, after passing the ball indicator. This product will cause equipment corrosion and aging of the rubber sealing ring of the movement. This will lead to different degrees of oil and gas leakage. There are also failures such as indicator action failure. At present, our solution is to shut down the pipeline. Then the operator will release and empty the oil and gas in the pipeline. Then the maintenance personnel shall repair and replace the indicator movement.

Working principle The end of the extension sleeve is provided with a striker which can be triggered in both directions. It passes through the connecting pipe of DN50 and probes into the interior of the pipe near the pipe wall. When the pig passes, it will move the striker. It transmits the action to the instrument button through the connecting rod in the sealing shaft sleeve. Then it triggers the operation of the display instrument.

1. Applicable temperature: – 40 ~ 85 “C. 2. Suitable for transmission pipes of all materials

EMT new design high pressure intrusive type pig signaler could work under the greatest pressure of 3770Psi. The intrusive type pig signaler could indicate the passage of pipeline pigs more accurate when the pipeline pigs touch the trigger of the pig signaler.