"Butterfly valve" means a valve in which a disc rotates in such a manner on a shaft that as it opens and closes, the valve is fully open when the disc is parallel to the axis of the pipe.
Nev. Admin. Code § 445A.6566
NRS 445A.860
"Butterfly valve" means a valve in which a disc rotates in such a manner on a shaft that as it opens and closes, the valve is fully open when the disc is parallel to the axis of the pipe.
Nev. Admin. Code § 445A.6566
NRS 445A.860