1. The gate valves installation location, the height and the directions of inlet and outlet must accord to design requirements, and the connection should be tight and strong.
2. All kinds of hand valves installed on insulation pipeline, the handles should not downwards.
3. Before installation, outlook check is necessary, the gate valve nameplate should according to the national standards. When the working pressure exceed 1.0 MPa or the gate valve used for cutting off on main pipe, you must do strength and sealing performance test before installation.
4. The handwheel, handle and drive mechanism can not use for lifting, and forbidden to collision.
5. The installation of gate valve with drive mechanism should strictly accord the operation instruction.
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