Thanks to the good folks at Potter Signal they pointed out they have a cheaper version that does not have the backup shut off system. A little more than 1/4 the price. It does have a connection to pipe to a safe place in the event of failure. But piping may actually be move expensive depending on where you need to go.
Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Thursday, June 24, 2010 11:17 AM To: [email protected] Subject: RE: Automatic air release Not perceived as advertising here, Mike- nice clear and concise explanation of all the tedious and expensive steps required to develop new products. There are many who look at the raw manufacturing cost of a device without considering the development costs divided into the # units expected to be produced. There are propriatory sprinkler devices that have similar "baggage" and the market then determines whether the risk taken pays off in revenue sufficient to cover the investment. >From your narrative, it's a steep slop to climb, eh? Not for those faint of heart or with shallow pockets. Thanks for the explanation- more than many could imagine, i trust. George Church Rowe Sprinkler -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mike Henke Sent: Thursday, June 24, 2010 11:29 AM To: [email protected] Subject: RE: Automatic air release Reliability, listings, engineering and limited demand all factor into the price. Neither UL nor FM had a standard for air vents used on fire sprinkler mains and branch lines. The only standard was for fire pumps. Potter commissioned and paid UL to write a standard for vents for fire sprinkler mains and branchlines, UL2573. The vents that were listed and approved for fire pumps do not meet the UL standard for branch line vents. We spent over 2 years testing and researching vents until we found one that would meet the requirements and then another year for the actual approval process. We just received UL listing for the only vent approved for branch lines. FM still does not have a standard for this, they still only approve for use on fire pumps despite what some other company may advertise. Potter is trying to get FM to also create a standard for branchlines but they have not. It's going to take a long time and a lot of sales to recoup our expenses on this and I am reminded of that frequently by the people above me. This is not an advertisement; I'm just answering a question. Regards, mike Mike Henke CET Sprinkler Product Manager 1-800-325-3936 314-595-6740 Direct www.pottersignal.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matthew J. Willis Sent: Thursday, June 24, 2010 10:09 AM To: [email protected] Subject: RE: Automatic air release >The device looks > >pretty simple why so expensive? Reliability? Listing? Matthew J. Willis, CET Automatic Fire Sprinklers Norred Fire Systems L.L.C. 318-387-1134 Voice 318-816-1087 Mobile 318-387-1163 Facsimile [email protected] _______________________________________________ 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) _______________________________________________ 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)
