"Check valve" means a valve designed to open in the direction of normal flow and close with the reversal of normal flow.
Nev. Admin. Code § 445A.65695
NRS 445A.860
"Check valve" means a valve designed to open in the direction of normal flow and close with the reversal of normal flow.
Nev. Admin. Code § 445A.65695
NRS 445A.860