NFPA 20 Listed Valves
NFPA 20 Listed Valves
(OP)
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!
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!





RE: NFPA 20 Listed Valves
Just a matter who the ahj will accept, as long as they are listed and tested for the use.
RE: NFPA 20 Listed Valves
RE: NFPA 20 Listed Valves
Ampav should be reviewing an API valve criteria against requirements in the applicable UL standard (http://www.ul.com/global/por/pages/offerings/indus...) and comparing it the applicable API valve standard, which is even more extensive: http://www.engineeringtoolbox.com/api-valve-standa...
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.
RE: NFPA 20 Listed Valves