Wafer Style Butterfly0 pages

"

ES-BF-03-M2/BF-04-M2

nn

For HVAC, Irrigation, OEM, Commercial and Institutional Applications

nnButterfly Valves nn

International Product

nnSeries BF-03-M2 Full Lugand BF-04-M2 Wafer nn

Sizes: 2" - 12"

nn

(50-300mm) 200 psi (13.8 bars)

nn

14" - 24"

nn

(350-600mm) 150 psi (10.3 bars)

nnSeries BF-03-M2Full Lug

Watts Series BF resilient seated butterfly valve is available insizes 2" - 24" (50-600mm), wafer or lug body design. This series
was designed to meet the stringent requirements for HVAC, Irriga-tion, OEM, Commercial and Institutional applications, and whereverpositive shut-off is required for liquids, gases and slurries.Incorporating a 200 psi (13.8 bars)pressure rating for 2" - 12" (50-300mm) and a 150 psi (10.3 bars) pressure rating 14"- 24" (350-600mm), the Series BF is standardly constructed of a cast ironbody, ductile iron, aluminum bronze or 316SS disc and 416SS
shaft. A phenolic-backed seat prevents the seat from collapsing
or dislodging and can be replaced in the field. Standard seat ma-
terials available include Buna-N and EPDM. In addition to the
above features, the Series BF mounting pad design can easily ac-commodate a lever handle, gear operator, and electric or pneu-matic actuators.The Watts Series BF butterfly valves are designed and manufac-tured for use with ANSI 125 or 150 Class flanges and to complywith API 609 and MSS-SP-67. >

nn

FEATURES

HANDLE - Ten-position handle is standard. An infinate posi-tioning/locking handle is available as an option on valve sizes 2"
through 12" (50-300mm). The infinite position Pos-Lok throttleplate incorporates an infinite-position stop, a memory stop and apadlocking device in the fully closed position. Manual, worm-gear
operators are available for all valves and are recommended on 8"
thru 24" (200-600mm) sizes. Watts butterfly valves are also avail-
able with electric or pneumatic actuators and chain wheel opera-
tors to satisfy a wide variety of requirements. >

nnSeries BF-04-M2Wafer

SHAFT - One-piece shaft delivers positive disc-to-seat loca-tion with maximum strength. 416SS is standard with aluminum
bronze and ductile iron discs, and 316SS shaft with 316 stainlesssteel disc. SHAFT BUSHINGS - Duralon >
bushings (3) provide shaft sup-port for proper shaft alignment and minimize shaft deflection. SHAFT SEAL - Bidirectional shaft seal prevents external con-tamination of stem area and provides backup for the primary
shaft seal formed by the disc/seat interface. >

nn

Actuators

The integrally cast, heavy duty four bolt mount-ing pad, coupled with lower operating torque re-
quirements, provides easy and cost effectiveautomation with a variety of pneumatic andelectric actuators. BODY - Watts Butterfly Valves are available in Full Lug (BF-03-M2) and Wafer (BF-04-M2) type designed for use between ANSI
125 and 150 flanges. Face-to-face dimensions comply with API609 and MSS-SP-67. All valves are designed to accommodate 2"of insulation. The standard material is ASTM A126 Class B cast iron. DISC - Disc edge is machined and polished 360 ΰ to assureleak-tight shutoff while minimizing operating torque. Positive,disc-to-shaft connection is provided by stainless steel precision
taper pins that are vibration proof. >
Duralon is a Registered Trademark of Rexnord Corporation. sealing isolates the body componentsfrom the media and provides the primary shaft seal. Available in
EPDM and Buna-N. Seat is field replaceable. SEAT - Phenolic backed, non-collapsible, resilient seat is me-chanically secured to provide dead-end service to the full 200 psi
(13.8 bars) pressure rating. Seat face eliminates the need for
flange gaskets. Full 360 >
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.wattsreg.com Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscda.com Watts product specifications in U.S. customary units and metric are approximate and are providedfor reference only. For precise measurements, please contact Watts Technical Service. Watts re-serves the right to change or modify product design, construction, specifications, or materials with-out prior notice and without incurring any obligation to make such changes and modifications on
Watts products previously or subsequently sold. size="-1">

"