Mike,
1) Need to know the min. and max. ambient air temperatures. 2) May I contact you off Forum? Brad _____ From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Stossel Sent: Tuesday, February 28, 2017 7:17 AM To: [email protected] Subject: Air Relief Time I am trying to calculate the time it will take for a 2-1/2" hose valve to relieve a standpipe system of air. I am designing a temporary standpipe system in NYC and the requirement is to fill the entire system with air and a single 2-1/2" hose valve needs to relieve the pressure within 3 minutes or a second will need to be added. My total system volume will be 1902 gallons and the staring air pressure will be at 18psi. Does anyone know of a way to calculate this? Thanks for the help. Mike Stossel SET 400dpiLogoCropped 36 Barren Road East Stroudsburg, PA 18302 Office: 973-670-2627 [email protected]
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