Amy Anderson P.E. | Warren Forensics

Tag Archive: Amy Anderson P.E.

Dive Into Suction Tank Issues and Inspections
January 29, 2024 12:08 pm Leave a Comment
Privately-owned water tanks supplying fire protection systems have a long history. The NFPA published the Standard on Gravity Tanks in 1909. It is one of the oldest NFPA codes, predating even the Life Safety Code’s precursor, the Building Exits Code, first published in 1927. The Standard on Gravity Tanks evolved over the years to become NFPA 22, Standard for Water Tanks for Private Fire Protection. The inspection, testing, and maintenance requirements for all types of private fire water storage tanks are laid out in NFPA 25, Chapter 9 – Water Storage Tanks. While there are about eight different types of fire water tanks, I’d assert that the most common type today is the steel suction tank. (more…)
A Primer On The Elements Of Fire Protection Water Supplies
January 19, 2024 10:05 am Leave a Comment
Get primed!

Fire protection water supplies can be made up of one or more common elements, including tanks, pumps, water sources and water systems. Sometimes elements are used together to develop an adequate supply for fire protection.

An adequate water supply for a fire protection system will meet the needs of the fire protection system (plus safety factor) in three terms: (more…)
Fire Pumps are Cool 😎; Lets Keep Them That Way
July 21, 2023 7:57 am Leave a Comment
In my last blog, we discussed the small PRVs that go on wet sprinkler systems to limit their pressure below 175 psi. That brought to mind a small PRV in another application that is used to keep something different cool: an electric motor-driven centrifugal fire pump. I can’t talk about electric fire pumps without also talking about diesel fire pumps, so let’s dive in and take a look at both! (more…)
Wet System Pressure Release Valves
July 20, 2023 7:55 am Leave a Comment
Ah, summertime. Summer’s heat brings some good things: opportunities for outdoor swimming and seasonal produce: blueberries, and peaches, and watermelon…

Summer’s heat doesn’t bring all good things. It can even trigger issues with fire sprinkler systems. Let’s zoom in on a small component on a wet fire sprinkler system that’s there in part because of summer heating: a pressure relief valve.

A pressure relief valve (or an auxiliary air reservoir) is required on wet sprinkler systems; one reason is to (more…)
Pre-Season Tune-Up for a Gas Grill
May 22, 2023 12:43 pm Leave a Comment

Statistics predict that about half grill owners will be firing them up this upcoming Memorial Day weekend [i]. Let’s look over a propane grill, as if we had just pulled it out for the grilling season, for some tips and red flags. Not beef tips or how to get the perfect sear on your steak – safety tips! Besides hot surfaces, a gas grill serves up hazards related to flammable gases: fires, explosions, and flash fires. (more…)
Know a Fire Sprinkler, Like a Boss – Part 2
January 9, 2023 1:22 pm Leave a Comment
In Part 1, we looked at the basic parts of a fire sprinkler and took a closer look at other parts including heat responsive elements, wrench bosses, and kick springs. In this part, we’ll look at k-factors and deflectors.

K-Factor and Orifice Size

K-factor is a characteristic that relates water pressure to flow rate from the sprinkler, represented as k in the equation Q = k√P, where Q is flow (gpm) and P is pressure (psi).

If we supply water at 50 psi to a k-factor 5.6 sprinkler, the flow rate is 40 gpm. If we supply 50 psi water to a K25 sprinkler, the flow rate is 177 gpm. There are now sprinklers as large as K33.6, which would flow 238 gpm given 50 psi – big difference from the K5.6!

The most common k-factors are 5.6, 8.0, 11.2, 14, 16.8, 22.4 and 25. There are smaller and larger k-factors than these. For reference, K5.6 and possibly K8.0 are most often found in (more…)
Know a Fire Sprinkler, Like a Boss – Part 1
December 15, 2022 11:11 am Leave a Comment
In this blog we’ll take a look at the basic and some of the less-known parts of fire sprinklers, with more to come in a later post.

Here are the basic parts of the fire sprinkler, shown on a pendent glass bulb sprinkler and an upright solder element (“fusible link”) sprinkler:

Let’s take a closer look to learn about some of the less known parts, and also look at two types of sprinklers disassembled. Included in parentheses are some of the different names for some of these parts. (more…)
GREASE Is The Word…Ensuring Proper Functioning of Wet Chemical Fire Protection Systems in Commercial Cooking Operations
October 24, 2022 2:07 pm Leave a Comment

Cooking equipment is the leading cause and is responsible for over half of fires in eating and drinking establishments (see Warren expert Chad Jones’ 2020 blog, Structure Fires in Eating and Drinking Establishments, for further reading on fire causes and NFPA 96 on duct inspection and cleaning). Fire extinguishing systems are also routinely provided over GREASE-producing cooking appliances. So why are some of these fires still so bad? GREASE is the word. (more…)
Warren Welcomes Fire Protection Engineer Amy Anderson, P.E.
February 9, 2022 3:35 pm Leave a Comment
Please join us in welcoming Fire Protection Engineer Amy Anderson, P.E., to the WARREN family! Amy has over 20 years of property loss prevention engineering and experience, specializing in fire protection. Amy graduated from Clemson University with a degree in Chemical Engineering and is a licensed Professional Engineer in Fire Protection.

Amy’s Expertise Includes: (more…)

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