The TYCO Model BFV-N Wafer Style Butterfly Valves (Ref. Figure 1) are indicating type valves designed for use in fire protection systems where a visual indication is required as to whether the
valve is open or closed. They are used, for example, as system, sectional, and pump water control valves. They are suitable for installation between ANSI Class 125 or 150 flanges without the
need for flange gaskets. For applications requiring supervision of the open position of the valve, the Gear Operators for the Model BFV-N
Butterfly Valves are provided with two sets of factory installed internal switches each having SPDT contacts.
The supervisory switches transfer their electrical contacts when there is movement from the valve’s normal open position during the first two revolutions of the handwheel

Sizes: ANSI Inches (DN)
2 (DN50), 2-1/2 (DN65), 3 (DN80),
4 (DN100), 5 (DN125), 6 (DN150),
8 (DN200), 10 (DN250), 12 (DN300)

Approvals
UL and C-UL Listed
FM Approved
California State Fire Marshall under
Listing No. 7770-1670:101
Maximum Working Pressure 250 psi (17,2) bar

Materials of Construction:
Body
Ductile iron conforming to ASTM A536

Disc
Ductile iron conforming to ASTM A395, Nickel Plated

Seat Material
Grade EPDM “E” rubber conforming to ASTM D2000
Upper Stem Type 416 Stainless Steel conforming to ASTM 582

Operator
Gear operator with iron housing