No requirement one way or the other, most pumps we do anymore are GxF gate bolted to the suction flange and sometimes the first piece or two after the pump are flanged and everything else is grooved.
Mike Morey CFPS 3229 * NICET S.E.T. 123677 Project Manager * Fire Protection Group Shambaugh & Son, LP an EMCOR Company 7614 Opportunity Drive * Fort Wayne, IN * 46825 direct 260.487.7824 / cell 260.417.0625 / fax 260.487.7991 email [email protected] [cid:[email protected]] From: Brian Harris <[email protected]> Sent: Tuesday, September 12, 2023 8:48 AM To: [email protected] Subject: [Sprinklerforum] Pump Suction Components I've seen two schools of thought with regard to pump suction components. One way is flanged on the suction side and grooved on the discharge. The other is all grooved. I can; t see where NFPA-20 requires it either way. What's the ZjQcmQRYFpfptBannerStart This Message Is From an External Sender This message originated outside your organization. ZjQcmQRYFpfptBannerEnd I've seen two schools of thought with regard to pump suction components. One way is flanged on the suction side and grooved on the discharge. The other is all grooved. I can; t see where NFPA-20 requires it either way. What's the popular choice and are there pro's & cons? Brian Harris, CET BVS Systems Inc. bvssystemsinc.com<https://urldefense.com/v3/__http:/bvssystemsinc.com/__;!!FaxH778!dxCobBhQT40KM55i-Crnk2e1fj6kGmPvaOutnATcp8LaI1kuGg1mdDGEzutVw6y3FHY2r-FRR88FM3Hb6ridSg$> Phone: 704.896.9989 Fax: 704.896.1935 This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient.
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