A municipality’s public water system could be operating at a large range of pressures:
• The system could be operating at a high pressure and the building PRV is reducing the pressure of the water delivered throughout a building to the requirements dictated by the code.
• The system could also be operating at a low pressure, where the PRV is not performing it’s function. In this scenario, there is still a friction pressure loss experienced on the system that needs to be accounted for in the overall system design. This is what I’m most concerned about.
Scenario:
I've got a city main operating between a range of 57 psi and 93 psi. A PRV will need to be installed at the building to ensure the pressure in the distribution system doesn't exceed 80 psi. I'm looking for guidance on how to determine the pressure drop associated with the PRV when the pressure from the city main is at the low end of the range (anything below 80 psi). The system demand is 35 gpm.
A municipality’s public water system could be operating at a large range of pressures:
• The system could be operating at a high pressure and the building PRV is reducing the pressure of the water delivered throughout a building to the requirements dictated by the code.
• The system could also be operating at a low pressure, where the PRV is not performing it’s function. In this scenario, there is still a friction pressure loss experienced on the system that needs to be accounted for in the overall system design. This is what I’m most concerned about.
Scenario:
I've got a city main operating between a range of 57 psi and 93 psi. A PRV will need to be installed at the building to ensure the pressure in the distribution system doesn't exceed 80 psi. I'm looking for guidance on how to determine the pressure drop associated with the PRV when the pressure from the city main is at the low end of the range (anything below 80 psi). The system demand is 35 gpm.
Thank you in advance!