Aside from the standpipe design, is there any way to get more psi without the electrical upgrade? I recently put in a soft start controller that lowered in-rush amperage enough to drop a backup generator size.
We also have a project where they opted for a small diesel pump and no back up generator. Matt From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Stossel Sent: Wednesday, November 01, 2017 2:17 PM To: [email protected] Subject: RE: Standpipe Pressure Question. It has been my experience that the pressure requirement between 65psi and 100psi varies from city to city and state to state. Is the building a high rise? Can the standpipes be classified as manual wet and not automatic and be based on the pumper trucks capabilities from the FDC instead of the fire pumps? Mike Stossel SET [400dpiLogoCropped] 36 Barren Road East Stroudsburg, PA 18302 Office: 973-670-2627 [email protected]<mailto:[email protected]> From: Sprinklerforum [mailto:[email protected]] On Behalf Of Thomas Reinhardt Sent: Wednesday, November 1, 2017 3:09 PM To: [email protected]<mailto:[email protected]> Subject: Standpipe Pressure Question. Question for the forum. I have a complete renovation of a school. They are required to have 3 standpipes installed. The designers approached me and asked if one of the standpipes could have a reduced pressure. The reason is because then they would have to upgrade the electrical power to the pump. This in turn would make them upgrade the power for the backup generator. This would create an economic problem for the school district. In researching NFPA 14. I found that the minimum residual pressure at 2.5 in. should be 100psi for each standpipe. Am I interpreting this correct. They asked that 1 standpipe be only 65psi (doesn't sound correct). NFPA 14 says that standpipes shall provide 250 gallons. All standpipie hose connections to be class 1 systems. Am I missing something. Thanks Tom Reinhardt Fire Inspector/Plan Reviewer Skokie Fire Department 7424 Niles Center Road Skokie, IL 60077 Office: 847-982-5342 [email protected]<mailto:[email protected]>
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