Pneumatic butterfly valve or pneumatic ball valve with manual mechanism can be implemented manual operation of valve just by simple switch. The manual mechanism is installed in the middle of pneumatic actuator and valve, operation is extremely convenient.
Specification and models:
SD-1~6 (worm and worm gear drive)
SSD-7~SSD-10 (Pressure disc dipole worm drive)
1. Stroke 90°± 5°
2.. Torque range
150Nm---10000Nm (worm and worm gear drive)
10000Nm---67000Nm (Pressure disc dipole worm drive)