Try contacting your CPVC manufacturer and they should be able to provide you with a statement that the grooved adapter was made to be used with a standard coupling.
Dale F. Wingard, SET Designer Commercial/Marine Division NICET IV #76284 Water-based Systems Hiller Systems A Division of The Hiller Companies, Inc. 3751 Joy Springs Drive Mobile, AL 36693 o: 251.661.1275 HillerFire.com [Macintosh HD:Users:andrechiang:Dropbox:Emily's Files:Hiller:Email Signature:Hiller100 Email Signatures 2019-01-10:Hiller100 Email Signatures V1 2019-01-10 - Systems.png] Protecting life and property since 1919 From: Sprinklerforum <[email protected]> On Behalf Of Mike Hairfield Sent: Thursday, April 4, 2019 11:19 AM To: [email protected] Subject: Re: Grooved Coupling for CPVC Done that and I could not find anyone that has coupling that is approved for that use. ________________________________ From: Sprinklerforum <[email protected]<mailto:[email protected]>> on behalf of [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Sent: Thursday, April 4, 2019 12:17 PM To: [email protected]<mailto:[email protected]> Subject: RE: Grooved Coupling for CPVC Check with your supplier or down load their grooved literature. Regards, G. Tim Stone G. Tim Stone Consulting, LLC NICET Level III Engineering Technician Fire Protection Sprinkler Design and Consulting Services 117 Old Stage Rd. - Essex Jct., VT. 05452 CELL: (802) 373-0638 TEL: (802) 434-2968 [email protected]<mailto:[email protected]> From: Sprinklerforum <[email protected]<mailto:[email protected]>> On Behalf Of Mike Hairfield Sent: Thursday, April 4, 2019 12:11 PM To: Sprinklerforum <[email protected]<mailto:[email protected]>> Subject: Grooved Coupling for CPVC I have a local AHJ asking for a data sheet that states that a standard grooved coupling is U/L listed and/or FM approved for that use. Have any of you guys ever seen this? Thanks, Mike
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