Turbine butterfly valve refers to a type of valve in which the closing element (disc or disc) is a disc that rotates around the valve axis to achieve opening and closing. It mainly plays a cutting and throttling role in pipelines. The butterfly valve opening and closing part is a disc shaped butterfly plate that rotates around its own axis within the valve body to achieve the purpose of opening, closing or adjusting. The butterfly valve is usually less than 90 ° from fully open to fully closed, and the butterfly valve and stem do not have self-locking ability. In order to position the butterfly plate, a worm gear reducer needs to be installed on the valve stem. The use of a worm gear reducer not only enables the butterfly plate to have self-locking ability and stop at any position, but also improves the operational performance of the valve. The characteristics of industrial butterfly valves are high temperature resistance, high pressure range, large nominal diameter, carbon steel body, and metal ring instead of rubber ring for valve plate sealing. Large high-temperature butterfly valves are manufactured by welding steel plates and are mainly used for high-temperature medium flue gas ducts and gas pipelines.

Common faults and troubleshooting methods of turbine butterfly valves:

1. Before installation, confirm whether the product performance and medium flow arrow are consistent with the operating conditions, and clean the valve chamber. It is not allowed to have impurities or foreign objects on the sealing ring and butterfly plate. Before cleaning, it is not allowed to close the butterfly plate to avoid damaging the sealing ring.

2. It is recommended to use a dedicated flange for disc valve installation, namely HGJ54-91 socket welded steel flange.

3. The preferred position for installation in the pipeline is vertical installation, but it cannot be inverted.

4. During use, the flow needs to be adjusted and controlled by a worm gear box.

5. For butterfly valves with more opening and closing times, open the worm gear case cover in about two months, check whether the grease is normal, and keep a proper amount of grease.

6. Check that all connecting parts are required to be tightly pressed to ensure the honeycomb nature of the packing and the flexible rotation of the valve stem.

7. Metal sealed butterfly valve products are not suitable for installation at the end of the pipeline. If they must be installed at the end of the pipeline, they need to be equipped with outlet flange to prevent the sealing ring from accumulating and exceeding its position.

8. Regularly check the effectiveness of the valve during installation and use of the valve stem, and promptly eliminate any faults found.

9. Timely troubleshooting of possible faults