To begin with, the BF NSF butterfly valve series (see part numbers below) is a complete line of motorized butterfly valves. Also ideal for the building main water inlet for potable water. This series was designed to meet the stringent requirements of NSF-61 and is certified by NSF to NSF/ANSI 61 Section 8. Incorporating a 200psi (13.8 bars) pressure rating for 2” – 8”, the Series BF is constructed of a ductile iron body, 316SS disc, and shaft. Standard seat material is EPDM
with a phenolic-back preventing the seat from collapsing or dislodging.