Introduction to the use and maintenance of butterfly valves
Date:2024-06-02 Click:161
A butterfly valve is a valve that regulates and cuts off fluids by rotating a disc-shaped valve disc. It is widely used in various industrial fields, including water treatment, petrochemicals, electricity, food processing, etc. The following is an introduction to the use and maintenance of butterfly valves:
Introduction to use
1. Scope of application: Butterfly valves are suitable for low-pressure, medium-pressure and high-pressure pipeline systems, and can be used to cut off, regulate and throttle media such as water, air, oil, corrosive media, etc.
2. Installation position: The butterfly valve can be installed on horizontal, vertical or inclined pipelines, but it should be ensured that the valve is easy to operate and the valve stem is in a vertical or horizontal position.
3. Operation mode: The butterfly valve has various operation modes and can be controlled manually, electrically, pneumatically or hydraulically. Choose the appropriate drive mode according to the actual working conditions.
4. Switch state: When in use, avoid the butterfly valve being in a half-open state for a long time to reduce the wear of the valve disc and the sealing surface and extend the service life.
Maintenance introduction
1. Regular inspection: Regularly check the various components of the butterfly valve, including the valve body, valve disc, valve stem, sealing ring, etc., to ensure that they are not damaged or worn. If any problems are found, replace or repair them in time.
2. Cleaning: Clean the inside and outside of the butterfly valve regularly to remove accumulated dirt and impurities, especially when dealing with corrosive media, cleaning should be done more frequently.
3. Lubrication: For manually operated butterfly valves, lubricate the valve stem and other moving parts regularly to ensure smooth operation and reduce wear.
4. Fastener inspection: Check the fasteners (such as bolts and nuts) of the butterfly valve regularly to ensure that they are not loose. If looseness is found, tighten them in time.
5. Seal replacement: The seals of the butterfly valve (such as O-rings, gaskets, etc.) may age or be damaged after long-term use. They should be checked regularly and replaced as needed to ensure sealing performance.
6. Anti-corrosion measures: For butterfly valves that handle corrosive media, anti-corrosion measures should be taken, such as using anti-corrosion coatings or selecting butterfly valves made of corrosion-resistant materials, and regularly checking the condition of the anti-corrosion coatings.
7. Operation training: Train operators on the use and maintenance of butterfly valves to ensure that they operate and maintain butterfly valves correctly and extend the service life of the equipment.
The above measures can ensure the normal operation of the butterfly valve, extend its service life, reduce the failure rate, and improve the reliability and safety of the system.
