System One – Twinstopp

Twinstopp, using the ALH Systems System One, features the Twinstopp Bagtube kit, which allows for the insertion of two flowstopping bags through a single drill hole, offering significant savings in labour and excavation costs.
Key Features
- Low-pressure flowstopping
- Reduction in excavation requirements
- 3” to 12” metallic and PE
- Simple and easy to use
- Stop off pressure 75 mbar for all bag sizes
- Utilises the System One valve base
Twinstopp bags
The Twinstopp bags are fully approved for use and are manufactured in accordance with GIS/E4 and are unique to the ALH Systems Twinbag equipment and can be used in both metallic and PE assets. Latest in fabric technology
- Single inflation pressure
- Bag sizes from 3” to 12″