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I'm guessing it's because wax melts with heat i.e. fire and so allows a path for water to exit the sprinkler and put out the fire.

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Q: Why do sprinkler systems use wax plugs?
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Why do sprinkler sstems use wax plugs?

The wax plug holds back the water. In the event of a fire, the wax plug melts - allowing the water to cascade over the affected area.


Can persistent use of wax ear plugs cause ear problems?

If pieces of the wax break off and fall into the canal, surgery is needed to remove it. Yes it can.


Who invented earplugs?

The first recorded use of wax earplugs is in the Odyssey, wherein Odysseus's crew used wax earplugs to avoid being distracted by the Sirens' songs. The Iliad, and the Odyssey that follows it, record historical events that occurred around 800 BC. Ear plugs were probably in use before then.


What is the alternate use of montan wax carnauba wax used to make carbon paper roll?

What is the alternate use of montan wax ? What is the alternate use of montan wax ? Alternate of Montan Wax is Carnauba Wax. Montan and Carnauba wax cannot be replaced fully but it can partially replaced by Vegetable wax compound.


What can you use to wax a sled?

Surfboard wax


What are the different types of ear plugs?

There are foam ear plugs, silicone ear plugs, wax ear plugs, and custom-molded ear plugs. Foam ear plugs are disposable and provide good noise reduction. Silicone ear plugs are reusable and moldable to fit your ear canal. Wax ear plugs are soft and comfortable, but not as effective for blocking out noise. Custom-molded ear plugs are made by an audiologist to fit your ear perfectly and provide the highest level of comfort and noise reduction.


What do animals use wax for?

Animals use wax mostly to protect their skin from harmful bacteria. Honeybees also use wax to build honeycombs.


How do you properly wax your legs?

just use wax


Can you use a crayon to wax a violin bow?

No. Use rosin to care for the bow, not wax.


Can you use wax on glue down vinyl floor tiles?

Yes, you can use wax.


What type of ear plugs does a child need for swimming?

Children have such different sized ear canals that its a good idea to start with wax plugs. This way the ear plugs can be molded to the exact size and shape of your child's ear.


Do they use wax in chocolate?

Yes, wax is an edible food and chocolate manufactures do use a food grade wax in chocolate to cut down on costs.