The valve that is best suited for high pressure systems is the triple offset butterfly valve. With this valve, the contact axis of the disc seat is offset, which practically rules out sliding contact between the disc and seat. In the case of triple-staggered valves, the seat is made of metal, so that it can be machined in such a way that a bubble-tight shut-off is achieved when it comes into contact with the disc.
The valve that is best suited for high pressure systems is the triple offset butterfly valve. With this valve, the contact axis of the disc seat is offset, which practically rules out sliding contact between the disc and seat. In the case of triple-staggered valves, the seat is made of metal, so that it can be machined in such a way that a bubble-tight shut-off is achieved when it comes into contact with the disc.