In addition to scales appropriate to EN 837, there are also other conventional scale ranges, double and multi-quadrants as well as color scales. These conditions are determined according to the European norms EN 837-1 and EN 837-3.
You can reach the most used Pressure Units Conversion Table by this article.
Depending on customer specifications and requirements, many options offer pressure connections.
Valve Pressure Rating to Ansi is valid for your attention..