Pipeline Pigging and Descaling

Cleaning pipelines efficiently, recovering product effectively

InterGroup delivers specialist pipeline pigging services, with recently expanded capability across mechanical pigging, chemical pigging trains, and pipeline cleaning throughout the full pipeline lifecycle.

We use custom pigging systems to clean, descale, and clear blockages in pipelines, including launchers, traps, and push mechanisms suited to oil, gas, water and process pipelines. Each pigging programme is tailored to the pipeline’s diameter, materials, operating conditions, and product type to ensure safe, effective outcomes.

Pigging is applied during construction, pre-commissioning, operations, maintenance, shutdowns, repairs, and decommissioning to maintain flow efficiency and pipeline integrity.

What We Do

• • Chemical pigging trains and batching

  • Mechanical pigging

  • Pipeline cleaning, gauging and drying

  • Corrosion inhibitor and detergent-assisted cleaning

  • Hydrostatic testing preparation

  • Aggressive pigging for hard deposits

  • Dual-diameter pipeline cleaning

  • CIP support for food, beverage and dairy pipelines

Benefits to Our Customers

• Controls corrosion and internal build-up, reducing wear and extending asset life

• Restores full flow and process control by removing residual product, scale, and contamination

• Enables recovery of 95%+ of valuable product, reducing waste and disposal costs

• Reduces unplanned shutdowns by maintaining internal pipeline cleanliness

• Non-invasive servicing with no dismantling or hot work required

• Fewer disruptive inspections and less frequent invasive maintenance

  Why InterGroup

  InterGroup is one of New Zealand’s few industrial providers with nationwide pigging capability. Our in-house technical expertise allows us to design pigging solutions that match your pipeline configuration, operating requirements and production goals.

  Our integrated approach maximises product recovery, reduces waste and delivers reliable, cost-effective pipeline performance across the life of your assets.