Safety valve is composed of the following components:
1. Input
2. Valve body
3. Adjustment ring
4. Cushion
5. Mattress retaining shaft
6. abstinence axis
7. Spring
8. rotary shaft
9. Valve housing
10. Adjustable head
11. Valve cusps
Safety valves operate based on the Bernoulli principle which is a consequence of the law of conservation of energy: Fluid particles are only subject to pressure and their own weight. If a fluid flows in the horizontal and vertical directions of the flow. The increase in velocity (which implies an increase in pressure) is only possible because the fluid moves through that section from an area of high pressure to an area of lower pressure. If its velocity decreases, it can only be because it moves across the section from an area of low pressure to an area of higher pressure. As a result, for a fluid flowing horizontally, when the fluid's velocity increases, it is because it carries the smallest pressure and the smallest velocity occurs when the pressure is greatest.