Pneumatic angle valves are mainly used to cut off or open pipeline connections for process media during operation. Pneumatic angle valves are divided into flange type and threaded type. Double acting or single acting. Normally open and normally closed. The most commonly used specification is the normally closed single acting type with a threaded mouth. Usually used in conjunction with solenoid valves. Lifespan of 2 million cycles, with specifications available from DN15 to DN125.