My original post was related to the pressure settings on existing PRV's. Don't need a pitot. Your question seems to acceptance testing of the stand pipes. Setting or verifying the PRV settings is part of the testing but it seems to me that full flow teating at the top is also required, but frankly I don't know exactly how that is done.
C. Burton Ford Nicet Certified Special Hazards IV Fire alarm IV Sprinkler III Water Based Inspections I NFPA Certified Fire Protection Specialist [CFPS] Cintas Fire Protection 1038 Conshohocken Road Conshohocken ,PA 19428 610-233-1400 Fax 610-233-1401 ________________________________________ From: [email protected] [[email protected]] On Behalf Of Macris, George [[email protected]] Sent: Tuesday, March 22, 2011 9:03 AM To: [email protected] Subject: RE: PRV Testing This is a new sprinkler installation and having on site problems with testing of the PRVs for each floor in the building. The design engineer is not helpful and the installers have no clue of how to test them. Will you be able to describe how the actual test in done? I thought you also need to use a pitot tube, but how can this be done if you use a short piece of testing hose with one side connected to the drain riser and the other side just after the PRV. Thanks, George Macris,Plans Examiner/Fire Prevention Officer Markham Fire & Emergency Services 101 Town Centre Boulevard Markham, Ontario L3R 9W3 [email protected] www.markham.ca -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Eric Tysinger Sent: Monday, March 21, 2011 3:37 PM To: [email protected] Subject: RE: I have used a single 2½" female hose x male thread adapter, about a foot off the floor. Then you use a short piece of 2½" fire hose for testing. Thanks, Eric Tysinger CET NICET III - 108988 Designer Wayne Automatic Fire Sprinklers, Inc. 4370 Motorsport Drive Concord, NC 28027 p: (704)782-3032 x1751 f: (704)795-6838 C: (239)633-9703 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: Monday, March 21, 2011 3:06 PM To: [email protected] Subject: Tom, Do you have a picture or a sketch of a drain riser and connections for a 2-1/2" pressure reducing hose valve? I'm having a hard time picturing how this all goes together. Also any hints on distance or arrangement would be helpful. Thanks Todd Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) ************************************************************************************************** This e-mail contains information that may be privileged and/or confidential. If you are not the intended recipient, any disclosure, distribution, copying or other use of this e-mail or the information contained herein or attached hereto is strictly prohibited and may be unlawful. If you have received this e-mail in error, please notify this sender immediately and delete this e-mail without reading, printing, copying or forwarding it to anyone. Thank you for your co-operation. ************************************************************************************************** _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) This e-mail transmission contains information that is intended to be confidential and privileged. If you receive this e-mail and you are not a named addressee you are hereby notified that you are not authorized to read, print, retain, copy or disseminate this communication without the consent of the sender and that doing so is prohibited and may be unlawful. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please delete and otherwise erase it and any attachments from your computer system. Your assistance in correcting this error is appreciated. _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
