What are the classes of working pressure for Hymax?

The classification of working pressure for Hymax fittings is essential for ensuring that the components can withstand the demands of various applications in utility maintenance. The correct answer identifies the classes as 100, 150, 200, and 250 psi. These pressure classes are integral to understanding the performance capabilities of Hymax products in different operating conditions.

The range covers typical working pressures encountered in water and wastewater applications, allowing professionals to select appropriate fittings for their specific needs. Given that these components need to ensure integrity and prevent leaks or failures under different pressures, knowledge of these classifications is crucial for maintenance workers.

In contrast, the other options listed fail to encompass the full range of working pressure classes that Hymax provides, as they include numbers either below or above the typical operational parameters for these particular fittings. Therefore, the correct recognition of 100, 150, 200, and 250 psi reflects an understanding of the necessary specifications that support safe and effective utility maintenance practices.