Ductile iron gear housing
Ductile iron or bronze worm gears
Available for 360o operation
Designed for weatherproof, submersible and buried service
Roller bearing-supported shafts
Self-locking gearing
-40°C to 90°C (-40°F to 194°F) continuous ambient temperature range

Features
1.Small in volume, light in weight, reasonable design and strong in output, labor saving and portable.
2.The device are equipped with limit screws which can be adjusted within 5 degree at position in open and close.
3.Indicator board of open degree is directly installed on output worm gear,so indication is accurate and audio-visual.
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 and can be machined as customers' special requirements.
6.The dedicated grease has been loaded before leaving factory, the shell is sealed up for waterproof.