Oh the OSHPD guys are the BEST!

Rocci Cetani III, CET
Senior Designer
Water-Based Fire Protections Systems Layout, Nicet Level III

Northern California Fire Protection Services Inc.
16840 Joleen Way Bldg. A
Morgan Hill, CA 93037
P-(408) 776-1580 EXT.111
F-(408) 776-1590


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From: Sprinklerforum <[email protected]> On Behalf 
Of Travis Mack, SET, CFPS, CWBSP, RME-G
Sent: Tuesday, March 05, 2019 12:19 PM
To: [email protected]
Subject: RE: OS&Y "flow rates"

I've given up trying to figure people out.  Some just can't be bothered.

There is an equivalent foot chart in NFPA 13 for gate valves.  You could give 
him that for reference.

If he is still adamant to see a graph, you could make quick spreadsheet to 
calculate pressure losses based on flows.

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Travis Mack, CFPS, CWBSP, RME-G, SET
MFP Design, LLC
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Gilbert, AZ 85298
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From: Sprinklerforum 
<[email protected]<mailto:[email protected]>>
 On Behalf Of Rocci 3 Cetani
Sent: Tuesday, March 5, 2019 1:11 PM
To: 
[email protected]<mailto:[email protected]>
Subject: OS&Y "flow rates"

So we swapped out a broken OS&Y valve at the hospital and the OSHPD inspector 
is insisting he wants the "flow rates"  ( I assume he means friction loss) from 
the existing and new OS&Y valve. OS&Y valve cutsheets  don't have a friction 
loss chart because the loss is so minimal. Does anyone have any ideas on how to 
explain this to an OSHPD inspector, he have already told him this but he is 
just stuck on wanting to know the "flow rates"

Rocci Cetani III, CET
Senior Designer
Water-Based Fire Protections Systems Layout, Nicet Level III

Northern California Fire Protection Services Inc.
16840 Joleen Way Bldg. A
Morgan Hill, CA 93037
P-(408) 776-1580 EXT.111
F-(408) 776-1590


[email protected]<mailto:[email protected]>
www.norcalfire.com<http://www.norcalfire.com/>

CONFIDENTIALITY NOTICE: This message and any document accompanying it may 
contain confidential information
belonging to the sender. The information is intended only for the use of 
individual or entity named above. If you are not the intended recipient, or the 
employee or agent responsible to deliver this message to the intended 
recipient, you are hereby notified that any disclosure, copying or taking of 
any action in reliance on the contents of this information is strictly 
prohibited. If you have received this transmission in error, please immediately 
notify us by telephone to arrange for return of the documents.

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