Precautions for valves with flanges: The handwheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited; the double-gate gate valve should be installed vertically (that is, the valve stem is in the vertical position, and the handwheel is at the top); with bypass The gate valve of the valve should open the bypass valve before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force); the gate valve with the transmission mechanism should be installed according to the provisions of the product instruction manual; if the valve is frequently used, at least monthly Lubricate once. Structural features: It has obvious advantages such as light switch, reliable sealing, good elastic memory and service life. It can be widely used in tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electric power, ship, metallurgy, energy system, etc. It is used as a regulating and shut-off device on the body line.
