iPhone Screenshots


Valveworks USA presents the Virtual Flange Slide Rule. This application gives you access to all the relevant measurements and dimensional data for the API 6A integral flange.

What’s New

Version 2.6

This app has been updated by Apple to use the latest Apple signing certificate.

Update to fix flange screen rotation issue.

Ratings and Reviews

5.0 out of 5
6 Ratings

6 Ratings

a.alvarezjr ,

Great app

Man this is a great app thank you ....

App Privacy

The developer, Valveworks USA, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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