Pig Signal Indicator 
Description
Popper Pig Indicators rely on advanced magnetic sensing technology. They detect the passage of cleaning pigs through pipelines. The indicator mounts externally on the pipeline.
The magnetic sensor aligns with the pig’s magnetic signature. As the pig passes, it triggers the sensor. The sensor then sends a signal to the control system. This signal confirms the pig’s passage. It ensures accurate and reliable detection.
Popper Pig Indicators are available in several different options
- Bidirectional/ Uni-directional
- Welded connection/ Flange connection
| Configuration parameter | |||
| ●standard configuration | ○Optional configuration | — No | |
| Trigger type(b-bidirectional /f-bidirectional feather /u-u-unidirectional) | ○/○/● | ||
| Flag trigger interagency interaction (no / Yes _ the flexibility of the trigger mechanism can be checked online) | —/● | —/● | —/— |
| Wetted part material(316L SS/DSS/INCONEL) | ●/○/○ | ||
| Flange/welding base material(PTFE Coated A105N/304SS/316LSS/DSS/INCONEL/According to customers’ needs) | ● /○/○/○/○/○ | ||
| Liquid level position in the machine (high _ requires heat tracing / low _ does not require heat tracing) | —/● | ||
| Output junction box(aluminum alloy /316ss) | —/— | ●/○ | ●/○ |
| Output switch (DPDT/SPDT) | —/— | ○/● | ○/● |
| Switching capacity (DC24V 3A/DC24V 5A) | —/— | ●/○ | ●/— |
| Output interface size (M20 × 1.5(F)/1/2″NPT(F)) | —/— | ●/○ | ●/— |
| Pressurized handling tools(2 full thread studs / synchronous special tools) | ●/○ | ||
| Insertion depth adjustment range (±10mm) | ● | ||
Trigger Types of EMT Popper Pig Signaler
| Indicator Types | ||||
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| Indicator Types | A | B | C | D |
| Intrusive Type | Intrusive | Intrusive | Intrusive | Non-intrusive |
| Indicator Features | Popper Type | Manual reset flag | Manual reset flag combined with electrical signals | Date and time display combined with electrical signals |
Parameters of Popper Pig Indicators
| Type: Intrusive |
| Connection type: Flange connection |
| Indicator feature: Manual reset flag combined with electrical signals (Manual reset flag and Date and time display combined with electrical signals can also be made) |
| Installing type: 2” Flange. As per ASME B16.5(CLASS150-2500) |
| Plug body length: 200mm/Meet the actual needs |
| Insert depth adjustment: 20mm |
| Operating temperature: -20~120℃/Meet customer requirements |
| NACE MR 0175: Yes |
| Ingress protection: IP66 |
| Explosion-proof class: Exd II BT4 |
| Remove under pressure: No |
| Trigger type: Bi-directional (Uni-directional trigger can also be made) |
| Internal part material: PTFE Coated A105N is standard configuration (304SS/316LSS/DSS/INCONEL/As per MR can meet customer needs) |
| Junction box material: Aluminium alloy/316SS |
| Switch type: DPDT/2*SPDT |
| Switch rating: DC24V 3A/DC24V 5A |
Summary
In conclusion, Popper Pig Indicators use magnetic sensing to detect cleaning pigs. They offer easy installation, durability, and high accuracy. These features make them essential for efficient pipeline maintenance. Moreover, the high accuracy of Popper Pig Indicators minimizes false readings, providing reliable and precise monitoring of pig movements.
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