The working principle of the pig signaller!
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.
The display instrument is a real-time time display and recording system. Trigger the action generated by the striker to trigger the instrument to work and realize parameter recording. The operation button can also trigger the operation of the instrument. In this way, parameter reading and battery tests can be realized.
Appearance of instrument
The instrument consists of the main body and a display instrument, which are connected by knurled nuts.
There are two indicators on the instrument panel. Hit is the impact indicator light, indicating the main body action. T & R indicator is the test and reset indicator. It is used to indicate button action.
