Recommended accessories to operate pneumatically actuated valves (see data sheets 913-xx).

- Pilot solenoid valve controls air distribution to the actuator moving the valve.

- Limit switches box BE 41 with its 2 free potential contacts, informs on the valve status.

- Exhaust silencers (Fig. A) are usefull to limit noise.

- Exhaust dampers (Fig. B) are usefull to increase the operating time of valve and decrease the water hammer effect.