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FAQ

Installation, Use, and Maintenance of Butterfly Valves

FAQ

1. Before installation, check whether the specifications, pressure, temperature, and corrosion resistance of the butterfly valve meet the usage requirements. Inspect all parts for damage or looseness. 2. This butterfly valve can be installed on pipes at any angle, preferably in a closed position; when welding the pipe flange, cover the valve sealing surface with a plate to prevent particles and debris from damaging the sealing surface. After welding, remove the valve, clean the sealing surface and the inner cavity of the pipe, and then install and secure the valve. 3. During installation, pay attention to the pressure direction when the valve is in the closed state.

FAQ

How to choose a valve

FAQ

If there are no other special requirements for the valve, it can be ordered according to the valve's number. This requires the user to understand the valve number description when ordering the product. Although this may be difficult for the user, selecting the appropriate number based on the parameters of the product they need can ensure that the provided valve fully meets the user's requirements.

FAQ

Transportation, storage, and installation of valves

FAQ

1. When storing, the valve passage at both ends must be blocked with cover plates. It should be stored in a dry and ventilated indoor area, and should be regularly checked and cleaned of dirt. Anti-rust oil should be applied to exposed machined surfaces to prevent rusting. 2. Valves must be stored in a dry room and should not be placed outdoors to avoid damage. 3. Before transportation, valves must be tested and debugged according to the requirements of the contract or standard requirements to prevent user misoperation. For pneumatic or electric ball valves, the power source requirements for the corresponding devices must be listed according to the manuals of the pneumatic or electric devices. If users need testing and inspection, it must be done according to standard requirements to prevent the product from failing to meet its performance due to incorrect testing methods. After pressure testing, any accumulated water inside the valve must be cleaned out before storage. 4. When installing the valve, the cover plates at both ends of the valve must be removed. For valves connected by welding, protective measures must be taken during the welding installation process to prevent adverse effects on the valve due to high temperatures. 5. For valves with a specific installation direction, directional arrows must be marked on the valve body to prevent incorrect installation.

FAQ

Operation method of the valve

FAQ

1. Manual valve: When the handle is in a position parallel to the pipeline, the valve is in the open position; when it is at 90 degrees, the valve is in the closed position. Turning the handle clockwise closes the valve, while turning it counterclockwise opens the valve. 2. Worm gear operated valve: Identify using the indicator device installed on the upper part of the valve; turning the handle clockwise closes the valve, while turning it counterclockwise opens the valve. 3. Valves operated by pneumatic, electric, gas-liquid linkage, or hydraulic linkage: Operate according to the relevant actuator manual.

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