There is a bit of a caveat or loophole in that the code says “where any portion of a system is subject to freezing AND the temperatures cannot be reliably maintained at or above 40 degrees F…”
So, if you can make a successful argument that the area is reliably maintained at a temperature where the system is NOT subject to freezing, then you can be allowed to have wet pipe in an area that is less than 40 degrees F. Kyle Montgomery [cid:[email protected]] Aero Automatic Sprinkler Co. 21605 N. Central Ave. Phoenix, AZ 85024 Direct: 623.580.7820 Cell: 602.763.4736 [email protected]<mailto:[email protected]> From: Brett Peters <[email protected]> Sent: Thursday, August 22, 2024 1:17 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [External][Sprinklerforum] Re: TEMPERATURE LIMIT TO USE DRY BARREL SPRINKLERS 0C is actually 32F and NFPA states that temperature must be maintained above 5C or 40F for wet systems. So if the temperature is only maintained at 2C or 36F then dry barrel sprinklers would be required. Thanks Brett Peters General Manager Installation & Design Proudline Fire Protection Services Ltd. [email protected]<mailto:[email protected]> 780 490 7602 office ext 202 780 490 7605 fax 780 777 0568 cell 780 718 2676 24h Visit us at www.proudline.ca<http://www.proudline.ca/> Proudline now offers ULc listed monitoring services, please contact [email protected]<mailto:[email protected]> for more information [https://ci3.googleusercontent.com/mail-sig/AIorK4wRo6r0eNDUWx8YR-4XJLvwcnouQn_xEZH_HIb4jDbepWtON2RWC-ekzvZHKtncFOQqPcNQfzM] [https://ci3.googleusercontent.com/mail-sig/AIorK4yJVI287VPLDWiW9maE2Np3U4CdszCY9deeyaLl8DM90wlBd7pnuOZV9U-swv-7gWN_24py6vo] [https://ci3.googleusercontent.com/mail-sig/AIorK4wlGmqj6Ja06DKOIMLPvEE8B2W8fT_TPPA3w-4JfqygLq9n77ECSni09YLIVICXJYzWo4Z0PjU] [https://ci3.googleusercontent.com/mail-sig/AIorK4zEgPbs279KVEfWIpIiWNLel8zAlcloW9dNXGLTaE1cMz88CRkmg17fju5BQB_iIzhWK20DUL8] [https://ci3.googleusercontent.com/mail-sig/AIorK4z7J0kfmSGA8jKvDK0pTqW3KQlc5v-tYcWosmy5W7pdok462Gzu_9Ft7UK9oJUWDT1DzhQ4hUU] [https://ci3.googleusercontent.com/mail-sig/AIorK4wTVHoTZxkppBoWSCTFnGLgGTq0apivi8sNvWPyBsloO0mmy8ZYu4Ax854jo7ihTMFyeYeOceg] [https://ci3.googleusercontent.com/mail-sig/AIorK4xwBWEOX5v9mpza4Jqf9lOKSwThBNvyIO7Rl-Cxo7NRiV7p70C0f1biwbh44Y-iIA5GcmD1MCo] [https://ci3.googleusercontent.com/mail-sig/AIorK4yPfO1HdtbQPYiKlYE38cwc88ABhX7xN1nh0fCK5LjFXjKplJggk3Xn6_XypmtMWyADKR7ZRGk] On Thu, Aug 22, 2024 at 2:04 PM Daniel Bobadilla <[email protected]<mailto:[email protected]>> wrote: Hello fellows, hoping you're doing well. I would like to know, based on your experience, what is the value you consider as a limit to specify dry barrel sprinklers into a cooler. Pure water freezes at 0°C (40°F), but in a cooler that is supposed to work in the range of 2°C to 8°C (36°F to 47°F) is it necessary to install dry barrel sprinklers? NFPA 13 indicates 40°F the starting temperature in this table: [cid:[email protected]] The minimum exposed barrel is 0 inches for all the exterior temperatures when the protected area is 40°F. The actual exterior temperature is about 87°F. If there is no need for exposed barrel length, is this sufficient to assume that a standard wet sprinkler is appropriate? I would like to know your thoughts on this! Have a nice day! -- =?Este mensaje se dirige exclusivamente a su destinatario y puede contener información privilegiada o confidencial. Si no es Ud. el destinatario indicado, queda notificado de que la utilización, divulgación y/o copia sin autorización está prohibida en virtud de la legislación vigente. Si ha recibido este mensaje por error, le rogamos que nos lo comunique inmediatamente por esta misma vía y proceda a su destrucción. This message is intended exclusively for its addressee and may contain information that is confidential and protected by professional privilege. If you are not the intended recipient you are hereby notified that any dissemination, copy or disclosure of this communication is strictly prohibited by law. If this message has been received in error, please notify us immediately via e-mail and delete it. _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]<mailto:[email protected]>
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