I think, a dangerous thing, and based totally on speculation, without any supporting information, the grv x flg could be used due to vibration. I can visualize something as heavy and lopsided as an OS&Y rotating. Again, just pure speculation.
On Tue, Sep 12, 2023 at 6:31 AM Brian Harris <[email protected]> wrote: > Thank you. > > > > *Brian Harris, CET* > > BVS Systems Inc. > > bvssytemsinc.com <http://bvssystemsinc.com/> > > > > > > *From:* Taylor Schumacher <[email protected]> > *Sent:* Tuesday, September 12, 2023 9:10 AM > *To:* Discussion list on issues relating to automatic fire sprinklers < > [email protected]> > *Subject:* [Sprinklerforum] Re: Pump Suction Components > > > > I don’t know of a requirement for flanged fittings in the suction side. > OS&Y valves typically came FxF and hence the suction side fittings would > all be flanged. Grooved OS&Y is becoming more popular… That being said, I > have yet to see a pump with grooved inlets and outlets. > > > > Pros to all grooved are they are quicker to install. > > Pros to all flanged is they create a more stable/sturdy connection. > > > > > > *Taylor Schumacher* > > Security Fire Sprinkler > <https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.j-berd.com%2f&c=E,1,IdlECah-jJsrUITlM1aHPd6_WK9pcRGWuxRsi4zNc392EG0I7XP-24ePThtb0cI7OVoYGiTRgfgIrNkG1f9GlRSHwMaBLCv8gV5H6BJ4BgCRXoaZ5c5hQIo,&typo=1> > > 1 Industrial Blvd | Sauk Rapids, MN 56379 > > Office: 320.656.0847 | Direct: 320.640.7050 > > > > *From:* Brian Harris <[email protected]> > *Sent:* Tuesday, September 12, 2023 7:48 AM > *To:* [email protected] > *Subject:* [Sprinklerforum] Pump Suction Components > > > > *Caution:* This email originated from outside your organization. Please > take care when clicking links or opening attachments. > > > > 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://linkprotect.cudasvc.com/url?a=http%3a%2f%2fbvssystemsinc.com%2f&c=E,1,MfgrlWBYwY3PlDOWHES1uoDPWHIDLyk880pEmjCFRCQxPzYOC96WZrZ4GDIi0NbLt1yvzTfJOj1UUcDKHivbv2RBb37AZLuWdTm3Z_pLqkkxBxz7gc8K&typo=1> > > Phone: 704.896.9989 > > Fax: 704.896.1935 > > > > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected] >
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