Product overview
The SDQ series partial rotary valve manual device consists of a first-stage SZ multi-rotary manual device and a second-stage DJA reducer (for smaller specifications, the handwheel can be installed directly on the DJA reducer). Mainly used in valve disc for partial rotation, such as ball valves, butterfly valves, dampers, etc. This product meets the mechanical industry standard of the People's Republic of China JB/T 8531-1997 "Technical Conditions for Valve Manual Devices".