Calculating
Hydratight
Informate Boltup

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Welcome to BoltUp

Hydratight BoltUpĀ® is our free bolt load calculator, delivered over the web or available as a mobile app. It has been reformatted to permit ease of use while retaining the Informate Calculation Engine.


Boltup is now focused on Carbon Steel Weldneck ANSI B16.5 flanges, with selected lubricants and gasket options.

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Mobile App Coming Soon