| Customization: | Available |
|---|---|
| Media: | Oil |
| Standard: | En 12516 |
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Q1: What is a safety valve?
1. The primary purpose of safety valves is to safeguard life, property, and the environment. A safety valve is engineered to open and release overpressure in a container or device, then re-close to prevent further fluid release once normal conditions are restored.
2. Acting as the final line of defense, a safety valve must be operational at all times and under all conditions. Safety valves are not process valves or pressure regulators and should only be utilized for overpressure protection.
Q2: How does a safety valve work?
The working principle of a safety valve can be described as follows:
1. Open: When the system pressure exceeds the set pressure of the safety valve, the valve disc opens due to medium pressure and spring force, thereby releasing the excess pressure.
2. Keep open: When the system pressure stabilizes at the set level, the spring stabilizes, maintaining the system under stress and keeping the safety valve open.
3. Close: When the system pressure drops below the set pressure of the safety valve, the spring cannot lock and seal. Consequently, the valve disc closes under medium pressure, preventing any further increase in medium pressure.
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