State-Run Liaoyuan Instrument Factory

The valve driving device is one of our main products which has firmed three big series and nearly 100 specifications. Annual output is 200000 sets and expor to The United states of America, France, France, Canada, south-east Asia, over more than ten countries, It is worm & grear-drive, operated with hand, electricity, phneumatic, suitable for connection at of revolving valve, butterfly valves and ball valve. We also welcome orders with specical specifcations and requirements. It was awarded 1996′s quality product of Shanxi province, customers both at home and abroad are welcome to come and have businese with us.

Fatures:
1. Small in volume light weight reasonable design and strong in output torque.
2. Indicator board of open degree is directly equipped on output worm gear, so indication is accurate and audio-visual.
3. The devices are equipped with limit screws, it can be adjusted with +5o at position in open and close.
4. There are two keyways apart with 90o set on the inner hole of worm gear, for users to choose the relative assembly positions of the device and the valve body as need.
5. The dedicated grease has been loaded before leaving factory, the shell is
sealed up for waterproof, easy to install.