NFPA 20 Listed Valves

[ampav]

What does NFPA 20 mean by "listed valves" for fire protection services? Do the valves to be installed must be "UL listed" or may they be API valves?

For instance, what advantages does an UL listed ductil iron gate valve has against a stainless steel gate valve API certified, when the intended service of the valve is industrial fire protection in an statyionary fore pump system?

Let's say there is an atmospheric vertical tank which stores gasoline, and the only kind of valves available for its stationary pumps for fire protection system are API certified, would it be OK to install in the system API valves as "listed" or is it mandatory to install UL listed valves, according to what is stated in NFPA 20?

Thanks!

 

[cdafd]

They can be Listed by other listing agencies,

Just a matter who the ahj will accept, as long as they are listed and tested for the use.

 

[cdafd]

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

 

[stookeyfpe]

As a authority having jurisdiction I've never be asked to consider the similarities or differences between a UL or FM valve listed for fire protection service versus an API valve for petroleum service. I see all sorts of ways to screw this up. I don't know what type of valve (i.e., gate, check, butterfly) Ampav is asking about.

Ampav should be reviewing an API valve criteria against requirements in the applicable UL standard (

http://www.ul.com/global/por/pages/...gmaterials/fire/suppression/valves/index.jsp)

and comparing it the applicable API valve standard, which is even more extensive:

http://www.engineeringtoolbox.com/api-valve-standards-d_378.html

Ampav then should develop a matrix of the requirements from the applicable UL or FM standard and compare those to the requirements in the applicable API valve standard.

Or Ampav could go hire a competent fire protection engineer.

 

[ampav]

Thank you all, your replies have been totally helpful!