It is quarter turn gearboxes, suit to be used on ball valves, butterfly valves, plug valves etc. The
housing made by precise casting, and the gear boxes have fresh pattern and nice appearance. It
transmitted by worm gear and worm, and the worm gear with self-locking,also by using tapered roller
bearing, the gear box can be operated more flexibly and have higher efficience. Stem nut can be
uni-body or separated just according to customers' requirement. The mounting flange adapts to
ISO.5211.The Protection grade can be IP65, for some special environment, it also can be IP68.

Parameter Name	Parameter Value
Type	worm
Other characteristics	multi-turn