Greg McGahan wrote...
We do not use Relief valves any more. We rely on the proper rated fittings
and Pressure Reducing Valves. The relief valves we have seen do not operate
quickly enough to save the system from being exposed to higher pressure and
they discharge so much water that they destroy property.
Interesting. I am working on a project where the relief valve was
removed and replaced with a PRV. The PRV has become such a nightmare
since we can't reliably set it and just don't trust it to work right,
that we are replacing it with a standard relief valve. What is you
experience with PRVs over time? What kind of maintenance are you
doing with them?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com
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