Solder Req'd for Copper Pipe in Ordinary Hazard?

1/18/2023

For exposed copper piping in Ordinary Hazard occupancies, can the joints be soldered (sweat) together or must they be brazed?

Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe

5 Comments

Dan Wilder

1/18/2023 06:40:00 am

They must be brazed as they are exposed.

NFPA 13 - 22 ed

7.5.4* Brazed and Soldered Joints.
7.5.4.1
Solder joints, where permitted, shall be fabricated in accordance with the methods and procedures listed in ASTM B828, Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings.

7.5.4.2
Unless the requirements of 7.5.4.3 or 7.5.4.4 are met, joints for the connection of copper tube shall be brazed.

7.5.4.3
Solder joints shall be permitted for exposed wet pipe systems in light hazard occupancies where the temperature classification of the installed sprinklers is of the ordinary- or intermediate-temperature classification.

7.5.4.4
Solder joints shall be permitted for wet pipe systems in light hazard and ordinary hazard (Group 1) occupancies where the piping is concealed, irrespective of sprinkler temperature ratings.

Alex

1/18/2023 01:47:16 pm

Nailed it! I wasn't sure of the answer here either, appreciate the in-depth response Dan.

Anthony

1/18/2023 08:21:05 am

Just curious where you're using this? I'm imagining sensing lines for a pump or line piping for an MRI room?

Jesse

1/18/2023 09:20:06 am

Gotta be brazed

David Kendrick

1/18/2023 10:47:05 am

Viega ProPress fittings are UL listed for fire protection use including dry pipe systems.
There may be labor savings that offset the cost / risk of using a torch to braze / solder the joints.
One leak causes fairly significant frustration and added cost.

Leave a Reply.

Home
Our Cause

The Blog
The Forum

PE Exam Prep
The Toolkit
MeyerFire University

Pricing
Login
Support
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 a NICET Recognized Training Provider and International Code Council Preferred Education Provider.
All text, images, and media Copyright © 2016-2024 MeyerFire, LLC

We respect your privacy and personal data. See our Privacy Policy and Terms of Service. 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.

Discussions are solely for the purpose of peer review and the exchange of ideas. All comments are reviewed. Comments which do not contribute, are not relevant, are spam, or are disrespectful in nature may be removed. Information presented and opinions expressed should not be relied upon as a replacement for consulting services. 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.

Solder Req'd for Copper Pipe in Ordinary Hazard?

Leave a Reply.

ALL-ACCESS

SUBSCRIBE

COMMUNITY

YOUR POST

PE EXAM

FILTERS

ARCHIVES

PE PREP SERIES