These tools have been designed to temporarily stop the flow of gas or water in a plastic pipe, while a repair is carried out or while providing services on existing pipe.
Squeeze clamps manually they squeeze the pipe down to a set amount, as defined in the Transco specification GIS/ PL2-7: 2006.
To ensure the pipe is not damaged due to excessive squeezing, the tool is fitted with adjustable cam plate that can be set according to pipe diameter and SOR rating.
Tools are available for 16mm to 90mm pipe, in three tool types: 16 to 32mm, 20 to 63mm & 55 to 90mm.
To comply with good working practices, the tools are often used in pairs (on each side of the leak), a primary & a secondary squeeze off. The first to restrict the flow & the second to stop the flow.