Answer :
Final answer:
A safety relief valve is used to protect the air system from too much air pressure; this valve is usually set to open at a predetermined pressure, commonly 150 psi.
Explanation:
In industrial settings, safety relief valves play a critical role in safeguarding equipment and personnel from the adverse effects of excessive air pressure. The pressure at which a safety relief valve opens is known as the set pressure, and it is a carefully determined value based on the system's specifications.
For air systems, a common set pressure for safety relief valves is 150 pounds per square inch (psi). This value is chosen to ensure that the valve activates precisely when the air pressure surpasses safe operating limits but before reaching levels that could cause damage or pose a threat.
The selection of the specific set pressure involves a comprehensive analysis of the air system's characteristics, including the maximum allowable pressure, the pressure at which potential hazards may arise, and the system's normal operating range. Engineers use these parameters to set the safety relief valve to a pressure that provides an adequate margin of safety without unnecessarily compromising system efficiency.
Ensuring the proper functioning of safety relief valves is crucial for maintaining a safe working environment and preventing costly damage to equipment. Regular inspections and testing of these valves are standard practices to verify their performance and compliance with safety standards. By adhering to these measures, industries can uphold a high level of safety in their air systems, protecting both personnel and assets.
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