Complete pigging stations for long-distance oil and gas pipelines: launcher skids, receiver skids and combined launcher–receiver packages with quick-opening closures, positioning sensors and automated pressure control — for pre-commissioning gauging and routine wax removal, descaling and in-line inspection.

Working Principle

The station safely inserts pigs (cup pigs, foam pigs or intelligent inspection tools) into a live pipeline and receives them at the far end, using pressure balancing across quick-opening closures.

1. Launching: the pig is loaded and sealed in the barrel, pressurised to pipeline pressure; opening the kicker line drives the pig into the mainline by differential pressure.
2. Receiving: the arriving pig triggers a position sensor; the barrel is isolated, depressurised to a safe level, then the quick-opening closure is opened for retrieval.
3. The control system monitors pressure and temperature throughout, automatically drains and resets the station after each run.

Application Scenarios

• Oil & gas trunk lines: wax removal, descaling, in-line inspection runs.
• Chemical & pharmaceutical process lines: clearing residual product to prevent blockage or contamination.
• Municipal water and gas mains maintenance.
• Offshore: subsea pipeline pigging with corrosion-resistant design for harsh environments.

Product Advantages

Product Range

Pig launcher skidPig receiver skidCombined launcher–receiver station

Frequently Asked Questions

Which pig types are supported?

Cup pigs, foam pigs and intelligent in-line inspection tools; barrels are sized to project pipeline diameter and inspection-tool length.