User Manual
Size:
2" thru 12"
Series:
03; Full Lug, 04; Wafer
Body:
1; Ductile Iron
Disc:
1; Ductile Iron
2; Aluminum Bronze
3; 316 Stainless Steel*
Shaft:
1; 416 Stainless Steel
316SS on stainless steel disc models*
Seat:
1; EPDM
2; Buna-N
3; Viton
Operator:
0; No handle - 2" through 12"
G; Gear Operator - 2" through 12"
5; Standard handle (10-position) - 2" through 12"
P; Positioning / Locking Kit with handle - 2" through 12"
M2 Series:
10 - DBF- 03 - 121 - G - M2
A B C D E F G H I J
Size in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm
2" 10
3
⁄4 273 6
3
⁄8 161 1
5
⁄8 42 1
1
⁄4 32 2
1
⁄8 54 3
1
⁄16 77 10
1
⁄2 267
1
⁄2 13 3
3
⁄4 95
3
⁄8 9
2
1
⁄2" 11
5
⁄8 295 6
7
⁄8 175 1
3
⁄4 45 1
1
⁄4 32 2
9
⁄16 65 3
1
⁄16 77 10
1
⁄2 267
1
⁄2 13 4
1
⁄4 108
3
⁄8 9
3" 12
1
⁄8 308 7
1
⁄8 181 1
3
⁄4 45 1
1
⁄4 32 3
1
⁄8 79 3
1
⁄16 77 10
1
⁄2 267
1
⁄2 13 4
3
⁄4 120
3
⁄8 9
4" 13
5
⁄8 346 7
7
⁄8 200 2 52 1
1
⁄4 32 4
1
⁄8 105 3
5
⁄8 92 10
1
⁄2 267
5
⁄8 16 6
1
⁄16 154
3
⁄8 10
5" 14
5
⁄8 372 8
3
⁄8 213 2
1
⁄8 54 1
1
⁄4 32 4
7
⁄8 124 3
5
⁄8 92 10
1
⁄2 267
3
⁄4 19 7
1
⁄8 181
1
⁄2 13
6" 15
5
⁄8 397 8
7
⁄8 226 2
3
⁄16 55 1
1
⁄4 32 6
1
⁄8 156 3
5
⁄8 92 10
1
⁄2 267
3
⁄4 19 8
3
⁄16 208
1
⁄2 13
8" 18
7
⁄8 479 10
1
⁄4 260 2
3
⁄8 60 1
3
⁄4 45 8 200 4
1
⁄2 115 14 356
7
⁄8 22 10
1
⁄4 260
5
⁄8 16
10" 21
1
⁄4 540 11
1
⁄2 292 2
5
⁄8 66 1
3
⁄4 45 9
7
⁄8 251 4
1
⁄2 115 14 356 1
1
⁄8 29 12
5
⁄8 320
3
⁄4 19
12" 24
5
⁄8 626 13
1
⁄4 337 3 76 1
3
⁄4 45 11
7
⁄8 301 5
1
⁄2 140 14 356 1
1
⁄4 32 14
3
⁄4 375 1
1
⁄4 32
2" through 24"
A
B(CL)
C
D
E
F
G
I
P
(4) “O” Diameter of
holes on the “N”
bolt circle 45° off center.
C
E
I
N
Q
Body: ASTM A-536 Ductile Iron.
Bushing: Duralon (3): Teflon
®
- Dacron liner bonded
to fiberglass - epoxy resin outer shell.
Stem O-rings: Buna-N
Disc: ASTM A-395 Ductile Iron / Electroless
Nickel Plated.
ASTM B-148 Aluminum Bronze
ASTM A-351 type 316SS
Shaft: 416 Stainless Steel
316 Stainless Steel on 316SS Disc Models
Seat: EPDM: +5°F to 248°F (-15°C to +120°C)
Buna-N: +14°F to 176°F (-10°C to +80°C)
Viton: -4°F to 302°F (-20°C to +150°C)
Note: Do not use EPDM when hydrocarbons are present.
Top Plate Drilling Tapped Lug Data Key Way Weight†
N O Bolt Circle No. Bolt Q DBF-03 DBF-04
Size in. mm in. mm in. mm Holes P in. mm lbs. kgs. lbs. kgs.
2" 2
1
⁄4 57
1
⁄4 6 4
3
⁄4 121 4
5
⁄8"-11UNC x 1
1
⁄4" – – 8 3.6 6 2.7
2
1
⁄2" 2
1
⁄4 57
1
⁄4 6 5
1
⁄2 140 4
5
⁄8"-11UNC x 1
3
⁄8" – – 10 4.5 7 3.2
3" 2
1
⁄4 57
1
⁄4 6 6 150 4
5
⁄8"-11UNC x 1
3
⁄8" – – 10 4.5 7 3.2
4" 2
3
⁄4 70
3
⁄8 10 7
1
⁄2 191 8
5
⁄8"-11UNC x 1
1
⁄2" – – 17 7.7 12 5.4
5" 2
3
⁄4 70
3
⁄8 10 8
1
⁄2 216 8
3
⁄4"-10UNC x 1
3
⁄4" – – 25 11.3 16 7.3
6" 2
3
⁄4 70
3
⁄8 10 9
1
⁄2 241 8
3
⁄4"-10UNC x 2" – – 27 12.2 20 9.1
8" 3
1
⁄2 89
5
⁄8 16 11
3
⁄4 298 8
3
⁄4"-10UNC x 2
1
⁄8" – – 40 18.1 29 13.2
10" 3
1
⁄2 89
5
⁄8 16 14
1
⁄4 362 12
7
⁄8"-9UNC x 2
1
⁄4" – – 63 28.6 48 21.8
12" 4
1
⁄4 108
5
⁄8 16 17 432 12
7
⁄8"-9UNC x 2
1
⁄4"
1
⁄4 x 1 6 x 25 107 48.5 78 35.4
SEATING TORQUE
Buna-N, EPDM, Viton
Size Normal Conditions
WET/DRY
2" 134/214
2
1
⁄2" 190/289
3" 250/387
4" 390/644
5" 600/959
6" 907/1,542
8" 1,697/2,919
10" 2,500/4,857
12" 3,300/7,071
CV RATING
(Full Open)
Size CV Rating
2" 135
2
1
⁄2" 220
3" 302
4" 600
5" 1,022
6" 1,579
8" 3,136
10" 5,340
12" 8,250
For 14"- 24" BF Series Dimensional Data,
Request Engineering Spec Sheet ES-BF-03-M2/BF-04-M2.
†
Weights are for valves with ductile iron or aluminum bronze discs and 10-position lever handles.
Refer to Watts’ folder F-CDBF for butterfly valve weights with gear actuators, or consult factory.
H
Dia.
J
Across
ats
▼
▼
45°
Dimensions
How to Order Watts Series DBF
Materials
ES-DBF 1412 © 2014 Watts
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
A Watts Water Technologies Company