1, Handwheel, handle and transmission mechanism are not allowed for lifting, and the collision is strictly prohibited.
2, double gate gate valve should be installed vertically (that is, the stem is in a vertical position, handwheel at the top).
3, with bypass valve gate valve should be opened before opening the bypass valve (in order to balance the pressure difference between import and export and reduce the opening force).
4, with the transmission mechanism of the gate valve, in accordance with the provisions of the product instruction manual installation.
5, if the valve often switch use, lubrication at least once a month.
6, gate valve only for full open, all kinds of pipes or equipment on the operation of the media, not allowed for throttling.
7, with a handwheel or handle of the gate valve, operation must not increase the auxiliary lever (if the seal is not strict, you should check to repair the sealing surface or other parts). The handwheel and handle rotate clockwise to turn off, and vice versa. The gate valve with the transmission mechanism shall be used in accordance with the provisions of the product instruction manual.
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