The BFM® IG Calculator will help you identify the correct Installation Gap (IG) for your BFM® fitting installation. The installation gap is the space to leave between the BFM® spigots and always needs to be slightly shorter than the connector length (CL).
You can download a copy of the calculator to use on a mobile device in the field or use it on-line, and you can also save your calculations as pdf files to refer to later.
Please note: The calculator is designed for installations with horizontal movement only - if vertical movement is also involved, please contact BFM® for further guidance.
Download the BFM® IG Calculator
NOTE: If you are wanting to download the IG Calculator app. onto your mobile device, you will need to be viewing this page on your mobile device before entering your details in the form below. This will enable you to click on the download link and load the app. directly onto your phone/tablet.