8 FAQs about purge valves
Undoubtedly, purge valves have proven to be very important
components of any system they are used for. Although these devices are mostly
small and only constitutes a small part of most systems, their importance
cannot be overemphasized. In fact, if they get faulty or damaged, they might
lead to bigger problems and might even cause the whole system not to work.
These devices are used to control or guide the flow of materials
such as liquids and gases in a pipe system or tubing. In order to regulate the
flow, the pipe opens and closes gradually to allow or stop the flow of a
specific or desired amount of liquids or gases through a channel.
The purge valve is a dynamic device with several types and models
available. And as expected, there are always numerous questions asked about
this device. These questions range from type to usage, fitting, common problems
and many more.
Here are 8 question that are frequently asked about Purge Valves:
What causes cracks in valves?
Most times, people do not know where these cracks come from. Usually,
a valve can easily crack when it is over-wrenched, under extreme temperature
changes, under excessive pressure and using pipe, fittings and valves that are
made of different materials.
Are purge valves affected by Hammer effect?
The answer is a big Yes. The Hammer effect (water hammer) can
severely damage purge valves – especially ones used in water or oil industries.
It occurs when the liquid pressure is abruptly turned from an on to an off
position. The flowing train of water comes to a sudden halt, generating a
shockwave that can damage the purge valve.
What should a purge valve be made of?
There are several materials that a purge valve can be made of. The
choice of material usually depends on the application of the purge valve. Most
common materials are PVC, plastics, Brass, Bronze and steel. Before buying a
valve, you should check the material it’s made with, to confirm if it’ll be suitable
for your needs.
Can I open my two-piece ball valve?
No, you should not. Two-piece ball valves are not designed to be
opened as they create a seal on the application when they are screwed in.
Opening a two-piece ball valve can lead to safety hazards and severe leaks.
Are heavier valves better?
No, at least not necessarily. Bigger doesn’t always mean better, and
you don’t really need a big or heavy purge valve. When a valve is under a lot
of heat, it will expand. If the valve is made of heavy, thick walls, the part
of the wall closest to the heat will get hot quicker than other parts and this
can lead to tension within the valve which will cause cracking.
Can I inspect my valve myself?
Of course you can. Eye-balling is a free and simple method that you
can use to maintain your valve. Check for leaks by looking for signs of rust,
corrosion or mineral build-up. Also, open and close the valves to confirm they
have not seized.
Can I use any type of valve?
No, this is not advisable. There are several types of valves and
they do not all serve the same purpose. Using the wrong type of purge valve can
affect your business or even damage your machine. Take time to research about
the various type of valves so you’ll be able to select the perfect one for you
needs.
Cheap or expensive valves?
The type of valve you get greatly depends on your budget. However,
you should always prioritize quality.
Conclusion
Although it may sound funny, asking questions is one of the best
ways of researching or gaining more knowledge about
something. So if you’re looking to get yourself a new purge, or https://www.kp-lok.com/product/purge-valves/ probably want
to replace an old one or trying to decide which purge valve is best for your
industry, take time to research and go through the FAQs about the product.
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