How to use a butterfly valve to make it last longer
Butterfly valves are popular flow control valves in industrial systems, oil, gas, and water supply systems due to their simple structure, ease of use, and lower cost than other types of valves. However, to ensure long-term and maximum efficiency, butterfly valves require proper use and maintenance.
In this article, we’ll share some great information on how to use butterfly valves for maximum efficiency and long-term support. Let’s take a look!
- Choose the right type of Butterfly Valve for the job.
There are many different types of butterfly wings, each designed for different applications. Here are the details:
- Wafer type butterfly valve : used for low-medium pressure systems, easy to install.
- Lug type butterfly valve : Suitable for systems that require changeover without shutting down the entire system.
- Double Offset and Triple Offset Butterfly Valves : Suitable for high pressure systems, reducing friction and extending service life.
Selecting the right butterfly valve for the right pressure, temperature, and type of operation will ensure the valve performs at its best and lasts longer.
- Install the Butterfly Valve correctly
Improper installation can cause the valve to malfunction or fail prematurely. Before installing a butterfly valve, the following guidelines should be followed:
- Check the flange size to match the valve before installation.
- Install with proper spacing to provide enough space for opening and closing the valve.
- Avoid over-tightening the nuts, as this may cause the valve to warp and malfunction.
- Check the flow direction of the fluid as recommended by the manufacturer.
- Use the Butterfly Valve correctly
To prevent wear and tear and damage, butterfly valves should be used properly. Using the right butterfly valve can help reduce damage in the long run as follows:
- Avoid rapid opening and closing, as this may cause sudden pressure changes and damage the valve.
- Do not use beyond the specified pressure and temperature limits. Check the valve specifications before use.
- Open and close the valve regularly. If the system is not used frequently, leaving the valve in place for a long time may cause sediment to accumulate and affect its operation.
- Butterfly Valve Maintenance for Long Life
Regular inspection and cleaning not only helps maintain system efficiency but also helps extend the life of the butterfly valve. Inspection and maintenance methods are as follows:
Butterfly Valve Condition Inspection
- Periodically check valves for leaks.
- Clean the valve body and rubber seal to prevent dirt buildup.
- If used in a system containing chemicals, check the compatibility of the valve material with the fluid.
Lubrication of seals and moving parts
- If it is a manual or gear operated butterfly valve, the rotating shaft and moving parts should be lubricated periodically.
- Avoid using lubricants that are not suitable for the valve material.
Replacing worn parts
- If the seal or diaphragm is found to be deteriorated, it should be replaced to prevent leakage.
- Inspect the valve plate and spindle. If any wear or corrosion is found, replace them to ensure proper valve operation.
- Avoid factors that cause Butterfly Valve to deteriorate quickly.
Improper use can cause premature valve damage. Although butterfly valves are relatively resilient to wear and tear, the following factors should be avoided:
- Pressure exceeding the valve limit
- Non-return flow (Check Valve)
- Accumulation of dirt and sediment inside the valve
- Using the valve at excessively high temperatures without insulation
- Opening and closing the valve in a water hammer situation, which may cause the valve to be damaged quickly.
Using a butterfly valve for a long service life requires selecting the right valve, installing it correctly, using it carefully, and maintaining it regularly. If you follow these recommendations, the valve will be able to function at its best, reducing the chance of damage and saving on repair and replacement costs in the long run. If you’re interested in purchasing a quality water valve imported from a leading brand, you can choose products and consult with Asia-Pacific Supply, a distributor and importer of industrial water valves for over 29 years.