What pressure range must a pressure regulator provide?

The appropriate pressure range that a pressure regulator must provide is typically between 30 to 70 psi. This range is generally accepted for many applications, especially in medical and clinical settings where maintaining a stable pressure is crucial for the safe delivery of gases, such as oxygen.

A pressure regulator within this range ensures that the pressure is sufficient for various uses while preventing potential damage to the equipment or patient from excessively high pressures. This regulation is crucial in medical environments, ensuring the safety and effectiveness of treatments involving pressurized gases. A pressure that is either too low or too high can lead to inadequate perfusion or even equipment failure.

In contrast, the other ranges provided do not align with standard operational needs. For instance, a range of 0 to 20 psi might not provide enough pressure for many applications; 50 to 80 psi could potentially be too high for some systems; and the range of 100 to 120 psi is excessive for typical gas delivery needs, possibly leading to dangerous situations. Thus, the choice of 30 to 70 psi reflects a balance between safety and performance.