I am a research student in the University of Kocaeli, and i have been assigned a project about squeeze-off equipement squeeze-off procedure for PE gas pipes. i would really appreciate if you could send me any document and information about these tools.
The only personell that need them and should be using pinch off tools would be the utility companyies, since they do not have access to shutoff valves to the PE piping. Maintenance personnel can and should shut off the gas meter to work on the lines.
Go to http://www.timberlinetool.com Timberline Tool and Casting makes quality squeeze-off clamps. They can send you some of the information you are looking for.