Basic operation of the gate valve
1 The bypass valve with bypass should open the bypass valve before opening (to balance the differential pressure between the inlet and outlet, reduce the opening torque)
2 When operating, the human body cannot face the top of the valve stem to prevent the valve stem from being pressed and wounded.
3 Switch operation should be smooth and evenly applied. It is strictly forbidden to use impact force. Generally, it can be operated by hand. Avoid using the force lever to operate the new valve.
4 The design of the strength of the handwheel (handle) is based on the torque value required for the operation. Therefore, the handwheel (handle) should not be used as the operating pedal and any growth or socket extension lever, or the wrench can be used to excessively increase the torque. It is even more difficult to use a rope or the like on the hand wheel (handle), and then operate or lift the valve with a crane or a pulley.
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