When Use Standpipe Pressure Reducing Valves?

11/29/2019

On a combination Class I standpipe/sprinkler riser with automatic standpipes, what is your process to determine exactly where pressure reducing valves should be used?

Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe

4 Comments

Arthur J Tiroly

11/29/2019 02:14:05 pm

When fire pump churn pressure exceeds 175 psi on all sprinkler zones.

Fire department should determine pressure limit at pump churn pressure on fire department hose valves at all levels.

Vinnie

12/2/2019 06:12:04 am

I have used a nodepoint at every control valve in the standpipe, and whichever is above 175 psi gets a PRV

Vinnie

12/2/2019 06:13:55 am

at pump churn

Max

1/6/2020 07:04:49 am

I would say when working pressure of the system exceeds 175 psi. Working pressure is static pressure + pump churn pressure. The pressure normally felt by the system.

Leave a Reply.

Home - About - Blog - Forum - PE Exam - The Toolkit - MeyerFire University - Login - Pricing - Contact Us

MeyerFire.com is a startup community built to help fire protection professionals shine.
Our goal is to improve fire protection practices worldwide. We promote the industry by creating helpful tools and resources, and by bringing together industry professionals to share their expertise.

MeyerFire, LLC is an International Code Council Preferred Education Provider.
All text, images, and media Copyright © 2021 MeyerFire, LLC

The views, opinions, and information found on this site represent solely the author and do not represent the opinions of any other party, nor does the presented material assume responsibility for its use. Fire protection and life safety systems constitute a critical component for public health and safety and you should consult with a licensed professional for proper design and code adherence. Some (not all) outbound links on this website, such as Amazon links, are affiliate-based where we receive a small commission for orders placed elsewhere.

When Use Standpipe Pressure Reducing Valves?

Leave a Reply.

ALL-ACCESS

SUBSCRIBE

COMMUNITY

YOUR POST

PE EXAM

FILTERS

ARCHIVES

PE PREP SERIES