Pneumission engineers have developed a brother of the standard 3V1 valve, the Banjo Valve.
Mounting of the A PORT is with outside thread.
Connection G1/4 or G 1/8
22mm Coil type with DIN 43651 Form B connector
With manual override
Applications are;
Direct mounting on a single acting cylinder
With a single acting Pneumatic Actuator for ball valves.