Dwyer BFV - Manual

Series BFV Butterfly Valves
Bulletin V-6
Specifications - Installation and Operating Instructions
SPECIFICATIONS
VALVE BODY
Service: Compatible liquids, gases,
and steam.
Line Size: 2˝ to 12˝.
Body Style: 2-way, wafer, or lug
butterfly.
End Connections: Flange, to be used
with flanges that are ANSI Class 125
(B16.1) and ANSI Class 150 (B16.5)
dimensions.
Pressure Limit: 225 psi (15.5 bar)
WOG. Wetted Materials:
Body Material: Ductile iron.
Disc: 316 SS.
Seat and O-ring: EPDM or PTFE.
Stem: 410 SS.
Temperature Limits: Disc: EPDM: -50
to 250°F (-46 to 121°C). PTFE: 0 to
300°F (-18 to 149°C).
Bearings: Nylatron.
Flow Rate: See Cv chart.
Operator: 2 to 6˝: 10-position locking
hand lever. 8 to 12˝: manual gear.
Series BFV Butterfly Valves are bi-directional allowing control of fluid flow and
sealing in either direction, and are designed for installation between the faces of
125#/150# ANSI flanges. They do not require gaskets; the integral seat serves as
the gasket. The wafer and lug bodies have bolt hole locations for alignment and
attachment with mating flanges.
Prior to installation, close the valve. Spread the flanges apart far enough to allow
the valve to slip easily between the flanges. Insert the valve between the flanges.
Be sure to center the valve and not damage the liner. Allow the flanges to return to
their un-spread state. Install and hand-tighten all flange bolts. Slowly open the
valve, checking for free movement of the disc. If no obstruction is encountered,
leave valve in the open position and tighten all flange bolts. Be certain to keep
flange faces as parallel as possible during and after tightening bolts or studs. After
final tightening, again check the valve for full opening and closing.
Lug style bodies used for dead end service must be installed as marked on the
body (inlet–outlet).
W.E. ANDERSON DIV., DWYER
INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: [email protected]
Size
2˝
2-1/2˝
3˝
4˝
5˝
6˝
8˝
10˝
12˝
A
6-11/32
(161.13)
6-57/64
(175.02)
7-9/64
(181.37)
7-7/8
(200.03)
8-25/64
(213.12)
8-29/32
(226.22)
10-1/4
(260.31)
11-1/2
(292.10)
13-9/32
(337.34)
B
3-11/32
(85)
3-55/64
(98)
4-3/32
(104)
4-27/32
(123)
5-11/32
(136)
5-53/64
(148)
7-5/16
(186)
8-11/32
(212)
9-7/8
(251)
C
1-21/32
(42.07)
1-49/64
(44.85)
1-25/32
(45.24)
2-1/16
(52.39)
2-5/32
(54.77)
2-13/64
(55.96)
2-25/64
(60.72)
2-19/32
(65.88)
3-1/32
(76.99)
øD
2-5/64
(52.78)
2-35/64
(64.69)
3-7/64
(78.98)
4-7/64
(104.38)
4-55/64
(123.43)
6-9/64
(155.97)
7-63/64
(202.80)
9-7/8
(250.83)
11-7/8
(301.63)
øD1
4-3/4
(120.65)
5-1/2
(139.70)
6-1/16
(153.99)
7-1/2
(190.50)
8-33/64
(216.30)
9-33/64
(241.70)
11-49/64
(298.85)
14-17/64
(362.35)
17-1/64
(432.20)
n, WF
4
4
4
4
8
8
8
12
12
DIMENSIONS [in (mm)]
WAFER STYLE
LUG STYLE
B
A
n = # of holes
h
L
A
B
øD1
BOLT CIRCLE
n = # of holes
M = thread size
øD
C
øg
h
ead size
WAFER STYLE
“WF”
LUG STYLE
“LT”
135 °
øK
P
øE ød
4 PLCS
M
5/8
(15.88)
5/8
(15.88)
5/8
(15.88)
5/8
(15.88)
3/4
(19.05)
3/4
(19.05)
3/4
(19.05)
7/8
(22.23)
7/8
(22.23)
øK
3-1/32
(76.99)
3-1/32
(76.99)
3-1/32
(76.99)
3-35/64
(90.09)
3-35/64
(90.09)
3-35/64
(90.09)
4-59/64
(125.02)
4-59/64
(125.02)
5-33/64
(140.10)
øE
1-31/32
(50.01)
1-31/32
(50.01)
1-31/32
(50.01)
2-49/64
(70.25)
2-49/64
(70.25)
2-49/64
(70.25)
4-1/64
(102)
4-1/64
(102)
4-1/64
(102)
ød
9/32
(7.14)
9/32
(7.14)
9/32
(7.14)
23/64
(9.13)
23/64
(9.13)
23/64
(9.13)
29/64
(11.5)
29/64
(11.5)
29/64
(11.5)
h
1-25/64
(35.32)
1-25/64
(35.32)
1-25/64
(35.32)
2-11/64
(55.17)
2-11/64
(55.17)
2-11/64
(55.17)
2-49/64
(70.25)
2-49/64
(70.25)
2-49/64
(70.25)
L
1-17/64
(32.15)
1-17/64
(32.15)
1-17/64
(32.15)
1-17/64
(32.15)
1-17/64
(32.15)
1-17/64
(32.15)
1-1/2
(38)
1-1/2
(38)
1-1/2
(38)
P
23/64 x 23/64
(9.13 x 9.13)
23/64 x 23/64
(9.13 x 9.13)
23/64 x 23/64
(9.13 x 9.13)
7/16 x 7/16
(11.11 x 11.11)
9/16 x 9/16
(14.29 x 14.29)
9/16 x 9/16
(14.29 x 14.29)
43/64 x 43/64
(17.07 x 17.07)
7/8 x 7/8
(22.23 x 22.23)
7/8 x 7/8
(22.23 x 22.23)
LO
10-41/64
(270.27)
10-41/64
(270.27)
10-41/64
(270.27)
10-41/64
(270.27)
10-41/64
(270.27)
10-41/64
(270.27)
14-3/16
(360.36)
19-11/16
(500.06)
19-11/16
(500.06)
ISO 5211
F05
F05
F05
F07
F07
F07
F10
F10
F10
n, LT
4
4
4
8
8
8
8
12
12