Safety relief valve

Okay, imagine you have a hot water bottle. You fill it up with hot water and put it near your bed to keep you warm. But what happens if you forget to take out the air before filling it up? The hot water inside the bottle can make it expand too much and it could eventually explode. That's not safe, right?

Now think of a machine or a tank that holds something hot and pressurized (like steam or gas). If there is too much pressure building up in the tank, it could also explode and cause a lot of damage to people and things around it. That's definitely not safe!

To prevent this from happening, engineers install something called a safety relief valve. It's like a little door or a pipe on the machine or tank that can open up and let out some of the extra pressure if it gets too high. This helps keep things from exploding or breaking.

Think of it as a safety belt for the tank or machine. Just like how you wear a safety belt in a car to protect yourself, a safety relief valve is there to protect the machine and the people around it from harm. So, it's a very important safety feature!