We are proud to announce today an upgraded version of DONIT’s 𝐃𝐎𝐍 𝐏𝐑𝐎 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 – 𝐭𝐡𝐞 𝐢𝐧𝐝𝐮𝐬𝐭𝐫𝐲 𝐬𝐭𝐚𝐧𝐝𝐚𝐫𝐝 𝐩𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥 𝐠𝐚𝐬𝐤𝐞𝐭, 𝐟𝐥𝐚𝐧𝐠𝐞 & 𝐛𝐨𝐥𝐭𝐬 𝐜𝐚𝐥𝐜𝐮𝐥𝐚𝐭𝐨𝐫.

The new DON PRO 4.0 application enables you to perform calculations without user registration.

As of today, a user registration is required only if you are interested in saving or printing your calculations. The users who are already registered will need to reset the password before the first log-in.

Check out the upgraded DON PRO 4.0 by clicking here:

We hope you find the new version useful.

The DON PRO software represents a useful tool for proper choice of gasket materials and gaskets connected with major sealing issues of the static sealing area. The software includes a large number of flange and bolts dimensions according to different standards. Its main purpose is the calculation of bolt torque. The influence of internal pressure and temperature of the media on the gasket and bolts are checked as well as the chemical resistance of the gasket material against the media. Another possibility offered by the software is the optimization of the joint regarding the type of the selected sealing material or the gasket thickness.

For any questions, please do not hesitate to contact us at

April 17, 2023 6:15 am