
Bestway Slide Rule
API flange specs in seconds
0 ratings
Free
About
The Bestway Slide Rule puts API flange dimensions in your pocket.
Browse by nominal size and pressure rating, identify an unknown flange from measured O.D., bolt circle, and hole count, or search ring numbers and bolt circles. Switch between slide ruler, sealing face, and neck elevation views. Display inches or millimeters, fractions or decimals.
Works offline after install. No account required. Optional Call, Email, and Website buttons open your phone’s apps.
Powered by Bestway Oilfield.
Contact: info@bestwayoilfield.com · +1 (281) 452-2525
https://www.bestwayoilfield.com/
Show more
+2
What's New in Bestway Slide Rule
1.0.1
August 26, 2026
Updated disclaimer.







