Do You Know The Common Faults and Elimination Methods of Pneumatic Butterfly Valve
Pneumatic butterfly valve is mainly composed of pneumatic actuator
and butterfly valve. When we use pneumatic butterfly valve, there will always
be some failures. If we can not timely do troubleshooting, it will have some
impact. Therefore, it is important to quickly and accurately eliminate the
malfunction of the pneumatic butterfly valve. Now, the technician from DBV talks
about common faults and elimination methods of pneumatic butterfly valve for
everyone:
1. It is installed in the pipe, the best position is the upright
installation, but not upside down.
2. If there need to install supporting flange,
the suggestion is to install special flange of butterfly valve, that is to say socket
welding steel flanges HGJ54-91.
3. After the stem has been installed and used, check the use
effect regularly. And if find trouble, eliminate it in time
4. The products of metal sealing butterfly valve are not suitable
for installation at the end of the pipeline. If it must be installed at the end
of the pipeline, the valve need to be fitted with export flange to prevent
backlog and excessive of sealing ring.
5. In use need to adjust the flow, which is controlled by worm
gear.
6. The butterfly valves that open and close many times, after
being used for two months or so, need to be checked whether the butter is normal
with opening the worm gear cover. It should maintain the right amount of
butter.
7. Check the connecting parts required compaction. That is to
ensure the sealing of the packing, but also to ensure flexible rotation of the
stem
8. Verify whether the product performance and direction arrow of
medium meet the working condition before installation and clean the valve
cavity. It is required that the foreign matter and impurities are not allowed
to attach seal ring and disc. And it is also not allowed to close the disc
before cleaning the valve cavity in case to damage the sealing ring.
The above are the common faults and correct elimination methods of
common pneumatic butterfly valve, hope it can help you.
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