First、Product overview：

　　The manual mechanism is used in combination with the pneumatic device to realize the manual or pneumatic drive of the ball valve and butterfly valve with 90° opening degree.

Second、Product characteristics：

　　1、Small volume, light weight, reasonable design, novel style;

　　2、Product serialization, output torque and pneumatic device, all kinds of valves matching;

　　3、The inner hole of the worm gear connection has two keyways separated by 90°, so that the user can choose the relative position of the device and the valve body according to the need;

　　4、Free to switch manual and pneumatic, lift the limit pin, rotate the eccentric device 90°, limit pin automatic limit, pneumatic; On the contrary, manual implementation;

Third、Instructions for use：

　　1、The bottom surface of the reducer is connected with the valve, the support surface is connected with the cylinder, the valve shaft and the worm wheel hole through, the valve shaft end square with the cylinder square hole; (Working process: pneumatic, cylinder drive valve shaft, worm gear with rotation. Manual, worm and worm gear mesh, drive the valve shaft rotation, cylinder piston also move.

　　2、Lift the limit c pull ring and rotate the eccentric 90. Limit pin automatic limit, pneumatic, vice versa to achieve manual.

　　3、The bracket cover of the reducer has three kinds, the user can choose according to the need, the configuration of different types of cylinder;

　　4、Pneumatic manual cannot be driven at the same time.

　　5、When the product leaves the factory, it is equipped with special grease, and after assembling with the valve, the whole is sealed, dustproof and waterproof, and the protection level is IP65.IP67.JP68 is optional

Main use:

　　This manual mechanism is used in conjunction with the pneumatic actuator assembly for 90. Open butterfly valve, ball valve and so on to achieve manual or pneumatic drive.

　　Features:

　　1 .Small size, light weight, reasonable design, novel style.

　　2. Product serialization, output torque and pneumatic device, all kinds of valves match.

　　3. The turbine connection has an inner hole separated by 90. The two keyways allow the user to select the position of the device relative to the valve.

　　4. Lift the limit pull ring and rotate the eccentric 90. Limit pin automatic limit, pneumatic, vice versa to achieve manual.

　　5. 产品出厂时,装有专用润滑脂，与阀门装配后，整体密封,防尘、防水，防护等级IP65 , IP67JP68可选。

SD series pneumatic valve manual operation mechanism technical parameters