Worm Speed Reducer (SLJ520)

Usage:
Suitable to be connected with butterfly valve, ball valve and plug valve.

Features:
Small in volume, light in weight, reasonable design and strong in output, laborsaving and portable.
The device are equipped with limit screws which can be adjusted within ± 5° At position in Open and Close.
The worm gear is designed with self locking function and easy to operate.
Indicator board of open degree is directly installed on output worm gear, so indication is accurate and Audio-visual.
There are two keyways apart with 90 ° Degree set on the inner hole of worm gear for need.
The dedicated grease has been loaded before leaving factory, the shell is sealed up for waterproof Class IP65.

Notes to users:
All series of gear operator have round hole, squarehole and other special shaped hole for users' selectionand can be machined as customers' special requirments.
When choose this series of product, please pay attention to keep coupling dimension in according with the corresponding dimension of valve. If any special requirement, point out in the order please.
When installation, please turn the indicator board of this device and tha 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.

Installing procedure:
First check whether the inner hole of worm gear, the keyway and the flange of the housing in according with the stem, key and the mounting flange plate of the valve body.
Install the device on the valve after check correctly.
The needle of the indicator can point the position of the operator in the CLOSE and OPEN by rotating the hand wheel and adjust the limit stop screw.

Maintenance:
Do not operate the device at the exceed rating condition.
A periodic check, every year should be made to determine condition of the lubricant.