Bi Directional Pig
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Bi Directional Pig
The Bi Directional pig called as multi disc pig which moves in forward and backward direction, Discs provides exceptional sealing capacities during cleaning, gauging or batching operation,
Disc pigs majorly used in cleaning, gauging and batching operation during pre commissioning and online pigging,
Design
Bi Di pig generally consists of polyurethane disc and steel pipe body assembled with steel fasteners
Discs – Polyurethane / Viton / NBR
Pig Body – Carbon Steel / Stainless Steel
Fastener – Galvanized steel fastener / Stainless steel fastener
Features
- Can move forward and backward, no need to remove the pigs during the filling in intermediate station
- Excellent sealing properties
- Long Run
- Available from 2” to 60”
- Used in cleaning or batching operation
- Comes with transmitter provision
Bi Di Pig – 04 Sealing Disc + 02 Guide Disc + 06 Spacer Disc + 02 Bumper Disc (Optional) assembled with Steel Mandrel using Steel fasteners
| Type of Disc | Purpose | Hardness (Shore A ) | Color |
|---|---|---|---|
|
Sealing Disc |
To seal the leakage of fluids during pigging |
65 to 75 |
Red, Yellow, Orange, etc.. |
|
Guide Disc |
This helps in withstanding the weight of the pig and guides the pig during pigging |
80 to 90 |
Red, Yellow, Orange, etc.. |
|
Spacer Disc |
It separates sealing disc & Guide, Hence it helps in avoiding the contact of sealing and guide disc during pigging |
80 to 90 |
Red, Yellow, Orange, etc.. |
|
Bumper or Nose Disc |
It reduces the impact of hitting of the pig on receiver |
80 to 90 |
Red, Yellow, Orange, etc.. |
|
Ferro Magnet |
For removing steel debris from the pipeline - |
80 to 90 |
Red, Yellow, Orange, etc.. |
|
Pig Body or steel mandrel |
All spare disc will be installed in the pig body – Made out of Carbon Steel or Stainless Steel |
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|
Fastener |
To assemble the disc with pig body – Made out of Galvanized steel or Stainless steel |
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