First, many did answer your question.  A K17 upright by other than Tyco is
not available on the market.  That was stated a couple times.  Then, others
offered some possible alternatives that could be investigated for your
specific project by a qualified fire sprinkler professional.


Now, based on the information below, either you are misunderstanding what he
is stating, or you need to find a new sprinkler design guy.  That doesn't
make any sense.  As long as your pump + city supply do not exceed 175 psi at
the ESFR sprinkler, then you are good with that respect.  Now, the pipe
sizing may not be able to deliver the needed water, but that is something


Travis Mack, SET

MFP Design, LLC

3356 E Vallejo Ct

Gilbert, AZ 85298


fax: 866-430-6107





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price is forgotten."


From: Sprinklerforum []
On Behalf Of Jeff Polke
Sent: Monday, February 12, 2018 12:38 PM
Subject: RE: Help Finding ESFR upright greater than K17


That is true.  No one has come forward with what I requested as of yet.  My
need is specific as I am purchasing a used diesel split case pump that is
2000 gallons per minute and my sprinkler design guy claims the pump is too
high pressure for ESFR sprinklers heads that have a k factor of 16.8 or
less.  So I have to use upgraded high pressure fittings as well as Upright
heads that have a high Kfactor.  This is for high pile warehouse storage
30,000 sqft 20 foot stred racks. Any help here?


Jeffrey Polke 


From: Sprinklerforum []
On Behalf Of Larry Keeping
Sent: Monday, February 12, 2018 2:30 PM
Subject: RE: Help Finding ESFR upright greater than K17


Just to clarify, in case anyone wasn't aware, the referenced EC storage
sprinklers, Tyco TY9128 and the Viking V595, are not ESFR sprinklers. 

They are CMDA / CMSA standard response.


Larry Keeping


From: Sprinklerforum []
On Behalf Of Nicky Marshall
Sent: February-12-18 2:13 PM
Subject: RE: Help Finding ESFR upright greater than K17


Most of the responses do not seem to have answered your question if you are
specifically looking for an upright ESFR sprinkler.


To my knowledge, the K17 Tyco TY7126 is the biggest upright ESFR unless you
go Extended Coverage K25: TY9128 and Viking VK595.

If you can go standard response (CMSA) then there are more choices. K17:
TY7153, TY7151, VK580 and Reliable RA1124.  Then K25 VK598 and Victaulic



Nicky Marshall

Southern Regional Manager


Specialist Fire Protection Consultants

Phone: +64 (0)3 579 5577 extn 2  Mobile: +64 (0)21 433 488  Email:
<>  Skype:
nicky-marshall Web 

Address:105A Alabama Rd, Redwoodtown, Blenheim 7201, NZ Postal: PO Box 4022,
Redwood Village, Blenheim 7242, NZ


"I always wondered why somebody doesn't do something about that. Then I
realised I was somebody" Lily Tomlin


From: Jeff Polke [] 
Sent: Tuesday, 13 February 2018 5:30 AM
Subject: Help Finding ESFR upright greater than K17


Good morning all.  I am looking for an expert in ESFR sprinkler heads to
help me find a ESFR upright head with at least a K factor 17(not 16.8).
There does not seem to be other companies that make these ESFR other Tyco.
Please let me know.  Thanks.


Jeffrey Polke 



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