Tunstall Macon STV Series Manual page 51

Model BVF Butterfly Valves are Lug Type. The heavy duty, one piece body is
designed to be installed between all types of ANSI 125 / 150 flanges. Resilient
seat provides bubble tight shut off. Blowout proof stem with pinned disc. Uni-
versal mounting flange conforms to ISO-5211. The 2.5" through 6.0" sizes
are supplied with an adjustable flow positioning plate. This unique design
provides quick and easy setting of the valve flow position, requires less hard-
ware, will not slip and allows the valve to be easily moved to the closed or
full open position without disturbing the flow positioning set point. The 8.0"
through 12.0" size Butterfly Valves feature a gear operator.
SPECIFICATIONS
Pressure Ratings:
Temperature Ratings:
Body Material:
Disc:
Shaft:
Seat:
Bushing:
Seal:
Pin:
NOMINAL DIMENSIONS & WEIGHTS
MODEL
in
BVF-250
mm
in
BVF-300
mm
in
BVF-400
mm
in
BVF-500
mm
in
BVF-600
mm
in
BVF-800
mm
in
BVF-1000
mm
in
BVF-1200
mm
MODEL 10º
BVF-250 0.2
BVF-300 0.3
BVF-400
0.5
BVF-500 0.8
BVF-600 2
BVF-800 3
BVF-1000 4
BVF-1200
5
Optional features and accessories available for this
Macon product are an extra charge, and not included
in the standard model price.
www.maconbalancing.com
200 PSIG (13.80 BAR)
250ºF (121ºC)
Ductile Iron
ASTM A 536 65-45-12
Aluminum Bronze
ASTM B 148 C 95400
Stainless Steel 416 ASTM A582
EPDM
Teflon
EPDM
Stainless Steel
SIZE A
2.5" 8.15
65 207
3.0" 8.39
80 213
4.0" 9.13
100 232
5" 9.65
125 245
6" 10.16
150 258
8" 17.44
200 443
10" 18.70
250 475
12" 20.59
300 523
PERFORMANCE
Cv VALUES (GPM@1 PSID) - DISC POSITION (DEGREES)
20º 30º 40º
8 20 37
12 22 39
17 36 78
29 61 133
45 95 205
89 188 408
151 320 694
234 495 1072
B C D
1.93 0.30 9.39
49.1 7.6 238.5
1.90 0.60 9.41
48.4 15.2 239
2.17 0.96 9.27
55.3 21.35 235.5
2.31 1.27 9.20
58.8 32.25 233.7
2.32 1.90 9.20
59.1 48.3 233.7
2.38 2.79 7.00
60.5 70.92 177.7
2.67 3.59 6.85
68.0 91.21 174
3.02 4.42 7.42
76.9 112.3 188.55
50º 60º
65 98
70 116
139 230
237 392
366 605
727 1202
1237 2047
1911 3162
118 Exchange Street · Chicopee, MA 01013
Phone (413) 594-8695 · Fax (413) 598-8109
Section: Components
51
Model BVF
Submittal Data
WEIGHT
E
lbs
5.50
9.5
139.7
6.00
10.6
152.4
7.50
17.2
190.5
8.50
22.7
215.9
9.50
27.1
241.3
11.75
57.5
298.4
14.25
84.0
361.9
17.00
135.8
431.8
70º 80º
144 204
183 275
364 546
620 930
958 1437
1903 2854
3240 4859
5005 7507
Tunstall Corporation
Bulletin-MB-BVF-0915
kg
4.31
4.81
7.80
10.30
12.29
26.08
38.10
61.60
90º
220
302
600
1022
1579
3136
5340
8250