Medical air compressor systems must have a pressure relief valve set at what percentage above the line pressure?

The correct answer is that medical air compressor systems must have a pressure relief valve set at 50% above the line pressure. This is vital for safety reasons. The pressure relief valve serves to protect the medical gas system from overpressure situations, which can occur due to system malfunctions or blockages. By setting the relief valve to open at 50% above the line pressure, it ensures that the system operates safely within its designed limits while allowing for a buffer to accommodate fluctuations in pressure.

This standard is important because excess pressure can lead to catastrophic failures, including ruptures in the piping or bursting of components, which could pose serious safety hazards to patients and healthcare providers alike. Thus, adhering to the guideline of setting the pressure relief valve at 50% above line pressure is a critical component of maintaining the integrity and safety of medical gas systems.