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On a combination Class I standpipe/sprinkler riser with automatic standpipes, what is your process to determine exactly where pressure reducing valves should be used?
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4 Comments
Arthur J Tiroly
11/29/2019 02:14:05 pm
When fire pump churn pressure exceeds 175 psi on all sprinkler zones.
Vinnie
12/2/2019 06:12:04 am
I have used a nodepoint at every control valve in the standpipe, and whichever is above 175 psi gets a PRV
Vinnie
12/2/2019 06:13:55 am
at pump churn
Max
1/6/2020 07:04:49 am
I would say when working pressure of the system exceeds 175 psi. Working pressure is static pressure + pump churn pressure. The pressure normally felt by the system. Leave a Reply. |
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