Solenoid coils have applications in many industries and commercial operations—especially those that use pneumatic valves. Solenoid coil is used to open or close valves in pneumatic systems, making it a small but important part of the entire operation. You can find basic solenoid coils as well as coil connectors and solenoid air control valves. Shopping for pneumatic valves in addition to solenoid coils? Choose from solenoid air control valves, pneumatic flow control valves and pneumatic safety valves.