For Potable Water Applications
ES-LFBF-03-121-45_4G
Job Name
Job Location
Engineer
Approval
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LEAD FREE
*
Contractor
Approval
Contractor’s P.O. No.
Representative
Full Lug Style
Butterfly Valves
with NSF Certification
Model BF03-121-45
and BF03-121-4G
Sizes: 2" – 12" (50 - 300mm)
Models BF03-121-45 and BF03-121-4G full lug style butterfly
valves are certified by NSF to NSF/ANSI 61 Section 8. The
valves feature a FDA epoxy coated ductile iron body, aluminum
bronze disc, 416SS shaft, and a NSF approved EPDM seat. The
valves are designed and manufactured for use with ANSI 125 or
150 class flanges. They comply with API 609 and MSS-SP-67
and are bi-directional and provide dead-end service capability.
ISO standard 5211 mounting pad and bolt hole pattern allow for
actuation if required.
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Series BF03-121-45
Full Lug
Certied to
NSF/ANSI Std 61/8.
Features
• NSF approved EPDM seat is phenolic backed, non-collapsible,
and mechanically secured to provide dead-end service to
200psi (13.8 bar).
• FDA approved epoxy coated ductile iron body designed to accept 2" (50mm) of insulation.
• One-piece 416SS shaft with diameters in accordance with
AWWA C504-94 Class 75B for sizes 3" – 12" (80 - 300mm)
• Disc edge is machined and polished to assure leak tight shutoff
and low operating torque.
Models
BF03–121–45–M2 2" – 8" (50 - 200mm) lever handles
BF03–121–4G–M2 6" – 12" (150 - 300mm) manual gear
operator
Specifications
Butterfly valves to be NSF approved for potable water applications with FDA approved epoxy coated ASTM A-536 ductile iron
body, NSF approved EPDM seat and be fully rated for dead end
and bidirectional service to 200psi. Disc material to be ASTM
A-395 aluminum bronze with one piece 416 stainless steel shaft.
Valve to have ISO standard 5211 mounting pad and bolt hole
pattern. Valve to be Watts Series BF03-121-45 with lever handle
or BF03-121-4G with gear operator.
Pressure – Temperature
Temperature Range: 5°F – 248°F (-15°C – 120°C)
Maximum Working Pressure: 200psi (13.8 bar) WOG
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Dimensions – Weights
2" through 12"
G
D
B(CL)
P
▼
E
I
J
45°
▼
Across
ats
C
Size A B C D E F G H I J
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm
2" 50 103⁄4 273 63⁄8 161 15⁄8 42 11⁄4 32 21⁄8 54 31⁄16 77 101⁄2 267 1⁄2 13 33⁄4 95 3⁄8 9
1
2
⁄2" 65 115⁄8 295 67⁄8 175 13⁄4 45 11⁄4 32 29⁄16 65 31⁄16 77 101⁄2 267 1⁄2 13 41⁄4 108 3⁄8 9
3" 80 12
4" 100 13
5" 14
6" 150 15
8" 200 18
10" 250 21
12" 300 24
1
⁄8 308 71⁄8 181 13⁄4 45 11⁄4 32 31⁄8 79 31⁄16 77 101⁄2 267 1⁄2 13 43⁄4 120 3⁄8 9
5
⁄8 346 77⁄8 200 2 52 11⁄4 32 41⁄8 105 35⁄8 92 101⁄2 267 5⁄8 16 61⁄16 154 3⁄8 10
5
⁄8 372 83⁄8 213 21⁄8 54 11⁄4 32 47⁄8 124 35⁄8 92 101⁄2 267 3⁄4 19 71⁄8 181 1⁄2 13
5
⁄8 397 87⁄8 226 23⁄16 55 11⁄4 32 61⁄8 156 35⁄8 92 101⁄2 267 3⁄4 19 83⁄16 208 1⁄2 13
7
⁄8 479 101⁄4 260 23⁄8 60 13⁄4 45 8 200 41⁄2 115 14 356 7⁄8 22 101⁄4 260 5⁄8 16
1
⁄4 540 111⁄2 292 25⁄8 66 13⁄4 45 97⁄8 251 41⁄2 115 14 N/A 11⁄8 29 125⁄8 320 3⁄4 19
5
⁄8 626 131⁄4 337 3 76 13⁄4 45 117⁄8 301 51⁄2 140 14 N/A 11⁄4 32 143⁄4 375 11⁄4 32
H
Dia.
F
A
Top Plate Drilling Tapped Lug Data Key Way Weight†
Size N O Bolt Circle No. Bolt Q BF-03
in mm in. mm in. mm in. mm Holes P in. mm lbs. kgs.
2" 50 2
2
3" 80 2
4" 100 2
5" 2
6" 150 2
8" 200 3
10" 250 3
12" 300 4
†
1
1
⁄4 57 1⁄4 6 43⁄4 121 4 5⁄8"-11UNC x 11⁄4" – – 8 3.6
⁄2" 65 21⁄4 57 1⁄4 6 51⁄2 140 4 5⁄8"-11UNC x 13⁄8" – – 10 4.5
1
⁄4 57 1⁄4 6 6 150 4 5⁄8"-11UNC x 13⁄8" – – 10 4.5
3
⁄4 70 3⁄8 10 71⁄2 191 8 5⁄8"-11UNC x 11⁄2" – – 17 7.7
3
⁄4 70 3⁄8 10 81⁄2 216 8 3⁄4"-10UNC x 13⁄4" – – 25 11.3
3
⁄4 70 3⁄8 10 91⁄2 241 8 3⁄4"-10UNC x 2" – – 27 12.2
1
⁄2 89 5⁄8 16 113⁄4 298 8 3⁄4"-10UNC x 21⁄8" – – 40 18.1
1
⁄2 89 5⁄8 16 141⁄4 362 12 7⁄8"-9UNC x 21⁄4" – – 63 28.6
1
⁄4 108 5⁄8 16 17 432 12 7⁄8"-9UNC x 21⁄4" 1⁄4 x 1 6 x 25 107 48.5
Weights are for valves with aluminum bronze discs and 10-position lever handles.
Refer to Watts’ folder F-CDBF for butterfly valve weights with gear actuators, or consult factory.
How to Order Series BF
12 - BF- 03 - 121 - 4G
Size:
2" thru 12"
Series:
03; Full Lug
Body:
1; Ductile Iron
Disc:
2; Aluminum Bronze
Shaft:
1; 416SS
Seat:
4; NSF Approved EPDM
Operator:
G; Gear Operator - 6" through 12"
5; Standard handle (10-position) - 2" through 8"
Materials
Body: FDA Epoxy Coated ASTM A-536 Ductile Iron.
Bushing: Duralon (3): Teflon
Stem O-rings: Buna-N
Disc: ASTM A-395 Ductile Iron/Electroless Nickel-
Shaft: 416 Stainless Steel
Seat: NSF Approved EPDM +5°F to 248°F
(-15°C to +120°C)
Note: Do not use EPDM when hydrocarbons are present.
®
is a Registered Trademark of Rexnord Corporation
Duralon
SEATING TORQUE
Buna-N, EPDM, Viton
Size Normal Conditions
in. mm WET/DRY
2" 50 134/214
1
⁄2" 65 190/289
2
3" 80 250/387
4" 100 390/644
5" 600/959
6" 150 907/1,542
8" 200 1,697/2,919
10" 250 2,500/4,857
12" 300 3,300/7,071
®
- Dacron liner bonded
Size CV Rating
in. mm
2" 50 135
1
⁄2" 65 220
2
3" 80 302
4" 100 600
5" 1,022
6" 150 1,579
8" 200 3,136
10" 250 5,340
12" 300 8,250
to fiberglass - epoxy resin outer shell.
plated
CV RATING
(Full Open)
A Watts Water Technologies Company
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
ES-LFBF-03-121-45_4G 1412 © 2014 Watts