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Clay Magee's Blog – November 2017 Archive (3)

Standpipe Ops: Hose and Nozzle selection

Last week we discussed NFPA 14 and the design standards and required static and residual pressure parameters for installation.  It is important to remember that standpipe systems designed prior to 1993 have a required operating pressure between 65 psi and 100 psi.  Standpipe systems designed Post 1993 have a required residual pressure between 100 psi and 175 psi. Outlets are required to produce 250 GPM.  REMEMBER, if the standpipe valve is a Pressure Reducing Valve, it does not matter how…

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Added by Clay Magee on November 19, 2017 at 1:39pm — No Comments

Standpipe Ops: NFPA 14 - Small Talk About A Big Subject

This week we will be discussing NFPA 14 “Standard the Installation of Standpipe and Hose Systems”.  Over the next two weeks we will discuss nozzle tip size and hose sizes for standpipe operations.  This information from today will help set a background on the numbers that will be used over next few weeks.

 

Warning: This post may be lengthy and somewhat boring but the information is crucial to understanding weapon selection.  This is a small talk about a big…

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Added by Clay Magee on November 11, 2017 at 5:00pm — No Comments

Standpipe Ops: The Great Nozzle Debate

The age old debate in the fire service among nozzle men is certainly smoothbore vs the combination fog nozzle.  Both have their place in the fire service. Both have advantages and disadvantages.  However, when it comes to standpipe operations their is only room for one, and that is the Smoothbore nozzle.

 

Here are a couple of reasons why:

 

1) Pressure - Smoothbore nozzles are low pressure, they operate their rated flow at 50 psi. Why is this important in…

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Added by Clay Magee on November 4, 2017 at 11:59am — No Comments

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