Safety valve circuit for pressurised containers, reactors, heat exchangers etc.

摘要

The valve circuit has two multiple-way exchange valves for in and out locking of more than two safety valves. By means of forcible synchronisation of the switching paths of the two multiple-way exchange valves, the in and out sides of one of the safety valves have a continuous supply. This can be used with a combination of three safety valves, of which two are in operating position, and two four-way clocks, or through a combination of four safety valves of which two are in operation, and two five-way cocks.