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Sprinklers
and Sprinkler Systems 
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Sprinkler GPM
02/09/12
As we saw previously, the flow rate in gallons per minute (GPM) of each sprinkler
head is determined by the nozzle installed in the head. It is necessary to know
the GPM for each head in order to determine which heads will be connected to
each valve and in order to determine the size of each pipe in the sprinkler
system.
You will probably need to dig up the sprinkler manufacturer's literature again.
In the literature the manufacturer shows different GPM and radius information
for each sprinkler nozzle based on the operating pressure (PSI). Now we can
use that information to find the GPM for each sprinkler head. First, determine
what the SPACING is between each head and the others around it. Next, look for
the radius closest to that spacing and use the corresponding GPM as the flow
for the head.
Write down on your plan the GPM for each sprinkler next to the sprinkler symbol.
Hint: If you're a tutorial supporter you will find the GPM and radius data for
many of the popular sprinklers in the Bonus Section.
Example: You note that a spray type head on your plan is a 1/2 circle pattern
and the distance to the 3 closest adjacent heads are 13 feet, 12 ft., and 14
ft.. So the spacing for this head is 14 ft. (the highest of the 3). Looking
at the manufacturer's literature you note that a radius of 14 ft. for the 1/2
circle nozzle in this sprinkler requires a pressure of 25 PSI and a flow of
1.65 GPM. Write down the flow of 1.65 GPM next to the sprinkler head on your
drawing. You then repeat this procedure for each sprinkler head on your drawing.
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Castle Sprinkler and Alarm Fire System Service Company
... A wet pipe sprinkler system is under pressure, fully filled with water ... a dry system although the system is tripped much differently. A pre-action system does not rely on ...
Pre-Action Sprinkler Systems
Pre-Action Sprinkler Systems and Service in the Chicago Metropolitan area from Reliable Fire Equipment Company. ... are installing a pre-action sprinkler system, or if you have a pre-action sprinkler system already in your facility ...
www.hq.nasa.gov/office/procurement/jc09_02.xls
... MM038. SPRINKLER SYSTEM. PRE-ACTION. 3 ... MM039. SPRINKLER SYSTEM. PRE-ACTION. 4 ...
Preaction Fire Sprinkler System - APi Fire Protection Group
... On-Off Fire Sprinkler System. Another pre-action system variation is the on-off ... The system functions similar to any other pre-action sprinkler system, except that as the ...
Division 13 - Special Construction
... a fire suppression system (Pre- action sprinkler system, deluge system, or special extinguishing system ... a fire suppression system (Pre-action sprinkler system, deluge system, or ...
:Basic Fire Protection:-:FAQ:
1.800.955.FIRE. FAQ. What is an automatic fire sprinkler system? The automatic fire sprinkler system is the most widely used fire protection system today. ... A pre-action fire sprinkler system is commonly installed in high-risk areas such as data processing facilities or cold ...
Pre-Action/Deluge Sprinkler Systems
Pre-Action and Deluge type sprinkler systems are variations of conventional sprinkler systems that are used in special applications. ... A pre-action system uses closed sprinkler heads and the pipe is charged with compressed air instead of ... the compressed air. A pre-action sprinkler system includes a fire control ...
www.abc.state.va.us/download/IFBPre-Action.doc
INVITATION FOR BIDS. BID NUMBER #U-363-03. TITLE: FURNISH AND INSTALL SPRINKLER PRE-ACTION SYSTEM. ( ) SEALED BID OR (X) UNSEALED BID. ISSUE DATE 05/14/03 PAGE 1 OF 20 ... to serve as an indirect drain for the pre-action sprinkler system. Exact location and point of connection shall be ...
Tyco Fire Products Manufacturing Ltd.
... operation of a sprinkler head. The GRINNELL, PRE-ACTION SYSTEM, TYPE 2, described below, is designed ... equipment incorporated within a PRE-ACTION control system is as detailed below ...
Deluge Fire Sprinkler System - APi Fire Protection Group
... Fire Sprinkler System. A deluge system is similar to a pre-action system except the sprinkler heads are open ... all of the sprinkler heads in the system. Deluge systems are ...
Fire System Specialist
... on a system to learn more) Wet/Dry Sprinkler Systems. Pre-action Sprinkler Systems - Single ... Rack Storage Sprinkler Systems. ESFR (Early Suppression Fast Response) Sprinkler Systems ...
Pre-Action System
Page Title: Pre-Action System. Back | Up | Next. Web. www.tpub.com. Information Categories ... refer to pre-action systems as dry pipe sprinkler systems. It is true that the preaction system piping does not ...
"Model" Fire Protection Program
... 114. Pre-Action Sprinkler System (with Supervisory Air Pressure).... B-27. 115. Pre-Action Sprinkler System. B-35 ...
Chapter 15 Study Questions
... personnel leave the premises. Who should perform sprinkler system maintenance? ... Dry-pipe. Pre-action. Residential. Simplest type of automatic sprinkler system; contains water under ...
@SmartArtist Web Hosting Australia - Reliable Web Hosting for under $10 per month
... Double interlocked pre-action sprinkler system to the technical areas, conventional wet pipe sprinkler ... The double interlocked pre-action sprinkler system requires a signal from ...
projects
... Designed installation of gaseous suppression system, pre-action sprinkler, and fire alarm upgrades for ... Designed double interlocked pre-action sprinkler system for Central Office. ...
RP-1001 Pre-Action Control Panel
Pre-Action Sprinkler Systems and Service in the Chicago Metropolitan area from Reliable Fire Equipment Company. ... Annunciator mounts on a standard single-gang box and provides the following: System Trouble LED (yellow ... EquipmentFirst Aid KitsPre-Action Fire Sprinkler SystemsFire Alarm Systems ...
Koffel Associates, Inc. - Home
July 16, 2001: Sprinkler Protection for Mission Critical Facilities. By: Ray Schmid, P.E., Koffel Associates Design Team Leader. As seen in FPC/Fire Protection Contractor Magazine. September 2001
National Library of Parliament - Vipond Fire Protection
... that is protected by a temporary pre-action sprinkler system to avoid accidental discharges. ... the existing system and install the new sprinkler pre action system, as well as ...
11. SPRINKLER SYSTEM OPERATIONS
DCN: 4.05.04. ENGINE COMPANY OPERATIONS. CHAPTER. 10. March 15, 1997. SPRINKLER SYSTEM OPERATIONS. 1. 10. SPRINKLER SYSTEM OPERATIONS. 10.1 The first line of defense against fire in many occupancies is an automatic sprinkler. system. ... D. PRE-ACTION: A pre-action type of sprinkler system consists of fusible. sprinkler heads, dry piping ...
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