Answer :
Final answer:
The minimum and maximum static pressures required for a water service are generally 40 psi (Minimum) and 100 psi (Maximum) respectively. These pressures are measured in psi and work towards ensuring adequate water supply at safe pressure levels.
Explanation:
The minimum and maximum static pressures required for a water service generally fall between 40 psi (Minimum) and 100 psi (Maximum) respectively. These numbers can vary depending upon a multitude of factors such as the type of water service and the geographic location but as a rule of thumb, they do not fall below or exceed this range.
Water pressure within the referenced range ensures that the supply of water is sufficient for the property and is delivered at a safe pressure. Subpar pressure can lead to weak flows and potentially backflows which are health hazards while too much pressure can result in leaks and pipe damage. For this reason, pressure reducing valves are often used to manage and adjust water pressure.
Pressures are often measured in pounds per square inch (psi). For example, it’s important to note that absolute pressure, such as what might be read on a gauge, would also include atmospheric pressure. So, a tire gauge reading of 34 psi, would translate to an absolute pressure of 48.7 psi or 336 kPa when the atmospheric pressure of 14.7 psi is added.
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