Refill Mechanism for a Break Tank 1

[PEDARRIN2]

NFPA 20, 5.30.3 Refill Mechanism states the refill mechanism shall be listed and arranged for automatic operation.

What does "listed" mean?

I take it to be UL listed which leads me to ask, who makes a UL Listed refill mechanism for a break tank that can be arranged for automatic operation.

I looked at the Bermad FP 450 series but they are not UL Listed.

Anybody have any ideas?

 

[DRWeig]

PEDARRIN2,

Yes, you're right about "listed" but it's not just UL. Any nationally recognized testing lab (NRTL) will do IF AND ONLY IF the authority having jurisdiction agrees. FM, CSA, TUV, ETL, and a couple others might suffice.

Don't know of a particular mechanism though... But I bet somebody else here does -- check back tomorrow.

Good on ya,

Goober Dave

 

[cdafd]

sometimes the standards/ codes require listed items, but they do no exist. so the ahj has to accept what is installed, or no system

 

[cdafd]

also would say it has to be listed for the use, not necessarily fire protection use all the time

 

[cdafd]

http://www.idswater.com/water/europe/bermad/hydraulic_valves/10978_0/g_supplier.html

 

[PEDARRIN2]

cdafd,

I looked at the Bermad valves and it would work - but those particular valves are not UL/FM. I have a question into Bermad to see if they can assist me.

What I have designed is a Nibco gate valve body and a Nibco electronic actuator which is tied to the level probes in the tank.

The Nibco valve body and mechanical supervised actuator are UL/FM but when I replace the mechanical actuator with an electronic one - to make it able to be used for automatic operation, it loses the UL/FM.

The AHJ is not against using what I have designed, but they want documentation/proof there are no UL listed assemblies as "required" by NFPA.

 

[cdafd]

3.2.3* Listed. Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equipment, material, or service meets appropriate designated standards or has been tested and found suitable for a specified purpose.


it may be listed, but not fire protection use listed, and would say as long as it is listed for keeping the tank filled, than should be good to go.



not sure if you can access UL listings but that may be the easy way to see if there is anything in that category, or call UL to see if they will tell you.

 

[DRWeig]

Good on ya, cdafd.

Public access to UL certifications directory is at

http://www.ul.com/database

-- if you know the UL category code for the device in question, you can plug it in and go. It'll return all listed or recognized product files in that category.

If you don't know the category code, you can click the "options" link next to the category code field and follow along to a complete list of the codes.

Happy hunting!

Goober Dave