A pressure safety valve, also known as a pressure relief valve, is a type of valve that is used to protect a vessel or piping system from overpressure. It is designed to open automatically when the pressure of the fluid in the system exceeds a predetermined set point, releasing excess pressure and preventing damage to the system.
Pressure safety valves are critical components of many industrial and commercial systems, including chemical processing, oil and gas production, and power generation. They are typically installed on equipment such as pressure vessels, boilers, and pipelines, where high pressure can pose a safety hazard.
The valve is designed to open when the pressure of the fluid in the system exceeds a certain set point. When this happens, the valve will lift, allowing the fluid to escape from the system and reducing the pressure to a safe level. The valve will remain open until the pressure drops to a safe level, at which point it will close automatically.
Pressure safety valves are available in a variety of sizes, pressure ratings, and materials to suit different applications. They are typically designed to comply with industry standards and regulations, and can be customized to meet the specific needs of a particular system.
Overall, pressure safety valves are an essential component of many industrial and commercial systems, providing a critical layer of protection against overpressure and helping to maintain the safe and efficient operation of the system.

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