New film: Why do our ball valves have a metal-to-metal sealing system

01. July 2018

The new 3D film explains the advantages of the Hartmann metal-to-metal sealing system in comparison to soft sealing or PMSS systems. When closing the ball valve the internal velocity of the medium increases. The sealing system is now exposed to being struck by high speed debris. In the film you can learn what damage is caused at the inlet and downstream side of a soft sealing ball valve and this will result in expensive repairs. On the contrary, the Hartmann Valves sealing system is metal-to-metal: A hard coated ball and hard coated seat rings are designed to avoid this damage in the seat area. With a rate “A” requirement, the valve should have no visible leakage, and Hartmann metal-to-metal sealing ball valves are gas tight even at high cycles and for a long-lasting shut-off with minimal maintenance effort.


< Back

17 freie Stellen und Ausbildungsplätze

By using this website you agree to our use of cookies as described in our cookie policy.
We use cookies to improve your experience on our website. If you continue without changing your cookie settings, we assume that you consent to our use of cookies on this device.