Worm gear operators are designed to be used as 1/4-turn actuators.
For applications on ball, butterfly, plug valves and dampers
requiring a self-locking mechanism.
F10(125mm), D0: 102mm, max stem Ø30/ 8*7 mm
Housing: ASTM A216 WCB;Worm gear: Ductile Iron A536-65-45-12, Worm:
Adjustable Memory Stops in Open Position 45°- 90°
Chain Wheel Operators,Special Coatings
1.Small in volume, light in weight, reasonable design and strong in
output, labor saving and portable.
2.Device are equipped with limit screws which can be adjusted
within 5° at position in open and close.
3.Indicator board of open degree is directly installed on output
4.There are two keyways apart with 90° degree set on the inner hole
of worm gear for need.
5.The output flange accords with standard ISO5211.
6.The dedicated grease has been loaded before leaving factory, the
shell is sealed up for waterproof.
Notes to users
All series of gear operator have round hole, square hole and other
special shaped hole for users' selection and can be machined as
customers' special requirements.
When installation, please turn the indicator board of this device
and the valve to be the CLOSE position in order to keep them
harmonized.Valve CLOSE when turn hand wheel clockwise and OPEN when
turn hand wheel counter clockwise as usually custom.
A periodic check, every year should be made to determine condition
of the lubricant.