Repair a threaded gas pipe joint with I-Seal

I-Seal® — the safe and efficient system for repairing leaking threaded joints.

I-Seal® delivers a fast semi-permanent repair of a leaking threaded joint on gas pipework systems, allowing for controlled planned replacement at a future date. This solution is ideal for emergency response on riser systems as it avoids the need to isolate the gas supply.

Key benefits include:

  • Specifically designed for operation in restricted areas.
  • Significant reduction in the time consumers are off gas.
  • Avoids the need for planned maintenance operations to isolate pipework systems.
  • Delivers significant reductions in operational costs.

How I-Seal™ works. . .

The system uses an anaerobic sealant that is injected into the leak path of the threaded joint. The delivery system comprises of an I-Seal™ clip and non-return valve. This assembly is connected onto the leaking joint and drilled to a prescribed depth. The sealant is injected into the leak path using a high-pressure hand pump.


  • The system can be used on metallic threaded joints from ¾” to 6” diameter, and is designed for one-person operation.
  • Can be used on pipe systems up to 2bar operating pressure.

Click here to download a detailed datasheet for I-Seal™