Flip-flop valves provide an alternating switched output function when a momentary signal, either pneumatic or electrical, is applied to the control; each consecutive control signal changes the valve status.
As an example, a single pneumatic push-button connected to the control input, upon each consecutive press, alternates the output ports of a 5-way valve, used to signal valves, cylinders or other pneumatic devices.
Flip-Flop valves are either solenoid or air pilot controlled with G1/4 threaded ports.
Voltages are 12V DC, 24; 48; 110V AC/DC or 230V AC. Coils slide onto a brass stem; a threaded cap secures the solenoid coil, a wiring plug can then be connected.