According to NFPA 13, CPVC pipe and fittings can be used in certain situations, but there are limitations. For light-hazard occupancies, CPVC is generally allowed. However, in ordinary-hazard rooms within light-hazard occupancies, CPVC pipe can be installed if the room doesn't exceed 400 square feet.
Key Considerations for Using CPVC in NFPA 13 Systems: * Room Size Limitation: CPVC pipe can be installed in ordinary-hazard rooms up to 400 square feet. * Installation Requirements: CPVC pipe and fittings must be installed according to the manufacturer's instructions and listing. * Concealed vs. Exposed: CPVC pipe can be installed concealed or exposed, but exposed installations have specific requirements, such as maximum sprinkler spacing. * Private Garages: In private garages within dwelling units not exceeding 1,000 square feet, CPVC pipe can be protected from the garage compartment by wall or ceiling sheathing required by the applicable building code ¹ ². Additional Requirements: * Verify the CPVC product is listed for fire sprinkler service and specific use within the system. * Ensure the manufacturer confirms the product's suitability for the intended application. * Follow the manufacturer's installation guide for specific requirements on spacing, distance from ceiling, and sprinkler temperature. Regards, Yasser Amer From: Ed Kramer <[email protected]> Sent: Wednesday, May 14, 2025 12:30 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] CPVC and pipe scheduled systems ! External Email, Use Caution ! Oh knowledgeable ones: Is there anything in NFPA 13 that prohibits the use of CPVC pipe/fittings in the remodel of an old pipe schedule system? The intent is to maintain the pipe schedule and not provide calculations. I'm not aware of anything, but I don't want this to bite me later. Thanks, Ed K [https://www.dropbox.com/s/g4h8r7hdtsr6154/AFSA_L.png?raw=1] [cid:[email protected]] Ed Kramer Design Manager | Bamford Fire Sprinkler Co., Inc. P: 785.825.7710 F: 785.825.0667 M: 785.766.4894 A: 1383 W. North Street Salina, KS 67401 ________________________________ Confidentiality & Disclaimer Note: This e-mail (including any attachments) contain protected and confidential information intended for the sole use of the individual or organization addressee. If you are not the addressee or an authorized agent acting on their behalf, or if you have received this message by error, please notify the sender immediately be returning the message. It must not be copied, distributed or used in any other way but should be immediately deleted from your system. While Dar and the Dar Group strive to maintain high standards of communication, reliability, authenticity and integrity, neither shall be liable for the improper or incomplete transmission of the information contained in this communication nor for any delay in its receipt or damage to your system. Neither Dar nor the Dar Group guarantees that the integrity of this communication has been maintained or that this communication is free of viruses, interceptions or interference. Confidentiality & Disclaimer Note: This e-mail (including any attachments) contain protected and confidential information intended for the sole use of the individual or organization addressee. If you are not the addressee or an authorized agent acting on their behalf, or if you have received this message by error, please notify the sender immediately be returning the message. It must not be copied, distributed or used in any other way but should be immediately deleted from your system. While Dar and the Dar Group strive to maintain high standards of communication, reliability, authenticity and integrity, neither shall be liable for the improper or incomplete transmission of the information contained in this communication nor for any delay in its receipt or damage to your system. Neither Dar nor the Dar Group guarantees that the integrity of this communication has been maintained or that this communication is free of viruses, interceptions or interference.
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