API Flange Slide Rule / API Flange Slide Charts

API Flange Slide Rule Guide / Flange Slide Charts (4 x 9 1/2 inch and 4 1/2 x 11 available)
See flange dimensions by choosing the nominal flange size. Especially ideal for those who work in hazardous, humid or gritty environments where a mobile device could sustain costly damage. We offer these flange rule guides in two sizes, please call for imprint size.

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