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Page 1: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

w a t t s . c o m

Butterfly Valves

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Page 2: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

Note: 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.

Durafil® is a registered trademark of Cargill, Limited.Teflon® is a registered trademark of the E.I. Dupont de Nemours & Company, Incorporated.Uniseal® is a registered trademark of Uniseal, Incorporated.Viton® is a registered trademark of DuPont Dow Elastomers.

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Page 3: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

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Table of Contents

Series DBF and BF with ISO 5211 Mounting Pads - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Series DBF and BF Valve Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Series DBF and BF Dimensions and Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Series DBF and BF Specifications and Torque Rattings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Series DBF and BF Methods of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

How to Order Watts Butterfly Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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.

Duralon is a registered trademark of Rexnord Corporation; Viton GF, Teflon and Dacron are registered trademarks of E.I. DuPont DeNemours & Co.

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Page 4: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

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Butterfly ValvesDBF and BF Series with ISO 5211 Mounting Pads

Watts DBF and BF Series resilient seated butterfly valves are available in sizes 2" – 24" (50 – 600mm) in wafer or lug design. All lugged style valves feature dead-end service to the full pressure rating of the valve. Watts butterfly valves have a pressure rating of 200psi (13.8 bar) for sizes (2" – 12" (50 – 300mm) and 150psi (10.3 bar) pressure rating for 14" – 24" (350 – 600mm).

Watts DBF and BF Series valves also feature ductile iron body construction, a choice of ductile iron, aluminum bronze, or 316 stainless steel discs and standard seat materials of EPDM, BUNA-N or Viton® Sizes 2" – 12" (50-300mm) are sup-plied with a phenolic seat backing, while the 14" – 24" (350 – 600mm) are supplied with an aluminum backing designed to prevent valve seats from collapsing or dislodging.

All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, OEM Commercial, and Institutional appli-cations and can be used wherever positive shutoff is required for liquids.

Watts DBF and BF butterfly valves are designed and manufactured for use with ANSI Class 125 or 150 flanges and in compliance with API 6709 and MSS-SP-67.

All Watts Lugged Style Butterfly Valves feature dead-end service to full pressure rating of valves.

Lugged style DBF-03-M3

BF-04-M3 Wafer

DBF series butterfly valves use domestic and foreign components that have been assembled and tested in the U.S.A.

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Page 5: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

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One Piece Shaft 2" - 24"Delivers positive disc-to-seat location with maximum strength, and minimum shaft deflection due to upstream pressure. A 416 stainless steel shaft is standard with aluminum bronze and ductile iron discs. A 316 stainless steel shaft is standard with 316 stainless steel disc.

DiscDisc edge is machined and polished 360° to assure leak-tight shutoff while minimizing operating torque.

BushingsThree composite Duralon bushings in 2" – 12" valves and three bronze bushings in 14"-24" valves provide shaft support and alignment.

NameplateCalls out disc, seat and shaft material.

Mounting PadISO 5211 bolt pattern for easy adapta-tion for actuators, gear operators, and lever handles.

BodyWatts DBF and BF butterfly valves are available in Full Lug (03) and Wafer (04) designs for use between ANSI 125 and 150 flanges. Face-to-face dimensions comply with API 609 and MSS-SP-67. All valves are designed to accommodate 2" (50mm) of insulation. The standard body material is ASTM A-536 ductile iron.

Pinned DiscThe disc-to-shaft attachment is accom- plished by the use of taper pins. The pins minimize flow turbulence, thus improving Cv ratings.

Phenolic Backed SeatPhenolic Backed Seat: The phenolic backing 2"–12" (50-600mm) or aluminum backing 14"–24" (350-600mm) offers additional support to the seat making it non-collapsible and blowout proof. The seat face eliminates the need for flange gaskets. Full 360° sealing protects the body components from the media and provides the primary shaft seal. Seating is available in EPDM, Buna-N, and Viton.

Valve Features

Shaft SealBidirectional shaft seal prevents external contamination of stem area and provides backup for the primary shaft seal formed by the disc-to-seat interface.

The disc-to-seat interface provides the primary shaft seal, with a secondary seal provided by a series of O-rings molded into the seat at the shaft location.

Dead-End ServiceDead-end service feature for all lug style valves is standard. This complies with API 609, Fifth Edition requirements on seat retention. Valves suit-able for dead-end service to full pressure rating of valves without down stream flange required. Seat is mechanically retained in the valve body with no interruption of the seating surface.

Lugged style DBF-03-M2

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Page 6: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

4Refer to Watts price list PL-WR for ordering codes and prices.

Butterfly ValvesDBF and BF SeriesDimensions and Weights

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" 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 21⁄2" 115⁄8 295 67⁄8 175 13⁄4 45 11⁄4 32 21⁄2 64 31⁄16 77 101⁄2 267 1⁄2 13 41⁄4 108 3⁄8 9 3" 121⁄8 308 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 4" 135⁄8 346 77⁄8 200 2 52 11⁄4 32 41⁄8 105 35⁄8 92 101⁄2 267 5⁄8 16 61⁄16 154 7⁄16 11 5" 145⁄8 372 83⁄8 213 23⁄16 56 11⁄4 32 47⁄8 124 35⁄8 92 101⁄2 267 3⁄4 19 71⁄8 181 1⁄2 13 6" 155⁄8 397 87⁄8 226 23⁄16 56 11⁄4 32 61⁄8 156 35⁄8 92 101⁄2 267 3⁄4 19 83⁄16 208 1⁄2 13 8" 187⁄8 479 101⁄4 260 23⁄8 60 13⁄4 45 8 202 5 125 14 356 7⁄8 22 101⁄4 260 5⁄8 16 10" 211⁄4 540 111⁄2 292 25⁄8 66 13⁄4 45 97⁄8 251 5 125 14 356 11⁄8 29 125⁄8 320 13⁄16 21 12" 245⁄8 626 131⁄4 337 3 76 13⁄4 45 117⁄8 301 6 150 14 356 11⁄4 32 143⁄4 375 – – 14" 263⁄4 679 141⁄2 368 3 76 13⁄4 45 131⁄8 333 6 150 – – 11⁄4 32 1515⁄16 405 – – 16" 30 762 153⁄4 400 33⁄8 87 2 50 153⁄8 391 67⁄8 175 – – 15⁄16 33 181⁄2 470 – – 18" 311⁄2 800 165⁄8 422 41⁄8 105 2 50 173⁄8 442 67⁄8 175 – – 11⁄2 38 2011⁄16 525 – – 20" 355⁄16 897 187⁄8 480 51⁄8 130 21⁄8 53 193⁄8 493 81⁄4 210 – – 15⁄8 41 221⁄4 565 – – 24" 427⁄8 1088 221⁄8 562 6 152 21⁄4 58 233⁄8 594 81⁄4 210 – – 2 50 275⁄16 693 – –

2" through 24"

AB(CL)

C

D

E

FG

H Dia.

J Across flats

I

P

(4) "O" Diameter of holes on the "N" bolt circle 45° off center.

C

E

I

N

Q

45°

Top pLaTe DriLLing TappeD Lug DaTa Key Way WeighT (LBS.)† n o BoLT CirCLe no. BoLT Q Size in. mm in. mm in. mm Holes P in. mm Lug Wafer

2" 2 50 1⁄4 7 43⁄4 121 4 5⁄8"-11UNC x 15⁄8" – – 8 6 21⁄2" 2 50 1⁄4 7 51⁄2 140 4 5⁄8"-11UNC x 13⁄4" – – 10 7 3" 2 50 1⁄4 7 6 150 4 5⁄8"-11UNC x 13⁄4" – – 10 7 4" 23⁄4 70 3⁄8 10 71⁄2 191 8 5⁄8"-11UNC x 2" – – 17 12 5" 23⁄4 70 3⁄8 10 81⁄2 216 8 3⁄4"-10UNC x 23⁄16" – – 25 16 6" 23⁄4 70 3⁄8 10 91⁄2 241 8 3⁄4"-10UNC x 23⁄16" – – 27 20 8" 4 102 1⁄2 13 113⁄4 298 8 3⁄4"-10UNC x 23⁄8" – – 40 29 10" 4 102 1⁄2 13 141⁄4 362 12 7⁄8"-9UNC x 25⁄8" – – 63 48 12" 5 125 1⁄2 13 17 432 12 7⁄8"-9UNC x 3" 1⁄4 x 11⁄4 6 x 32 107 78 14" 5 125 1⁄2 13 183⁄4 476 12 1"-8UNC x 3" 1⁄4 x 11⁄4 6 x 32 156 99 16" 51⁄2 140 11⁄16 18 211⁄4 540 16 1"-8UNC x 33⁄8" 5⁄16 x113⁄16 8 x 46 203 140 18" 51⁄2 140 11⁄16 18 223⁄4 578 16 11⁄8"-7UNC x 41⁄8" 3⁄8 x 19⁄16 10 x 40 269 188 20" 61⁄2 165 7⁄8 22 25 635 20 11⁄8"-7UNC x 51⁄8" 3⁄8 x 19⁄16 10 x 40 392 248 24" 61⁄2 165 7⁄8 22 291⁄2 750 20 11⁄4"-7UNC x 6" 1⁄2 x 23⁄8 13 x 60 593 450

†Weights are for valves with ductile iron or aluminum bronze discs. 2" – 12" have levers; 14" – 24" have bare shafts. Refer to Watts F-CDBF for gear operator weights.

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Page 7: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

5Refer to Watts price list PL-WR for ordering codes and prices.

Torque Ratings*Seating torques for 2” - 12” standard size discs are rated at 200 psi, and 14” - 24” at 150 psi shut off under “normal” condi-tions; that is, allowing for mild disc corrosion, temperatures that may approach the material limits, minor chemical effects (such as swelling) on the elastomer, and intermittent operating frequency (valve not cycled every day).For applications that do not fall within these parameters, please consult factory.

SEATING TORQUE Buna-N, EPDM (in./lbs.)

Size NormalConditions WET/DRY

2" 134/214 21⁄2" 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 14" 3,500/7,305 16" 5,500/10,027 18" 8,200/13,437 20" 10,000/17,925 24" 18,680/28,020

CV raTing (Full open)

Size CV Rating

2" 135 21⁄2" 220 3" 302 4" 600 5" 1,022 6" 1,579 8" 3,136 10" 5,340 12" 8,250 14" 11,917 16" 16,388 18" 21,705 20" 27,908 24" 43,116

DBF, BF-M2 Specification 2" - 24" (50-600 mm)• All valve bodies shall be ductile iron ASTM A536. All lug body valves shall be fully rated for dead end bidirectional service to

100% of full rating. Lug bodies shall be of the full tapped lug pattern design. All bodies shall be suitable for ANSI 125/150 flanges

• All valves 2" - 12" shall be rated to 200 psi, 14" - 24" shall be rated to 150 psi.• Lay length dimensions shall comply with API 609 and MSS-SP-67.• Disc material shall be aluminum bronze, ductile iron, or stainless steel. Discs shall incorporate disc flats with polished radius

on the disc edge circumference. Disc and shaft connection shall be precision taper pin design.• Shaft shall be one piece through shaft design of 416 stainless steel or 316 stainless steel with stainless steel disc. Valve

shafts shall not be exposed to the line media.• Seats shall be Buna-N, EPDM, or Viton®. Seats shall fully encapsulate the body and incorporate a rigid backing and primary

seal. All seats shall be suitable for weld neck, slip-on and Van Stone type flanges. Seats shall be suitable for full pressure and vacuum applications.

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Page 8: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

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Handle Kit Information

Valve Size Std. handle position/Locking Chain-Wheels Chain

2", 21⁄2", 3" (50 - 80mm) HK-2000-M2 #1 Pos/Lock #2 BCWK #2 BCWC 4" (100mm) HK-2000-M2 #2 Pos/Lock #2 BCWK #2 BCWC 5", 6" (125mm, 150mm) HK-2000-M2 #3 Pos/Lock #2 BCWK #2 BCWC 8" (200mm) HK-2000-M2 #4 Pos/Lock #3 BCWK #3 BCWC 10" (250mm) HK-2000-M2 #5 Pos/Lock #3 BCWK #3 BCWC 12",14" (300-350mm) HK-2000-M2 #6 Pos/Lock #3 BCWK #3 BCWC 16", 18", 20" (400-500mm) #4 BCWK #3 BCWC 24" (600mm) #5 BCWK #5 BCWCChainwheel kits attach to gear actuator handwheel. Refer to Watts’ price list PL-WR for ordering codes and prices.

indicator/ Stop plate

Mounting boltsand nuts

Latch plate

Memory stop bolt and nut

Positioning/Locking Kit -for converting standard ten-position handle to deluxe handle with memory stop, infinite position stop, locking device.

Handles

Gear Actuators

Actuator dimensions are shown in inches.

gear Dimensions: STD. Weatherproof W/ handwheel a B C D e F #Turns unit Valve Model 2" Sq. CL to CL to open - Weight Size # nut Depth Width hW hW Dia. height MT pad Close (lbs)

2", 21⁄2", 3" GOM4-1 OPN-BFG 5.0 4.2 6.5 6.0 2.7 1.5 7.0 10.0

4" GOM4-2 OPN-BFG 5.0 4.2 6.5 6.0 2.7 1.5 7.0 10.0

5", 6" GOM4-3 OPN-BFG 5.0 4.2 6.5 6.0 2.7 1.5 7.0 10.0

8" GOM4-4 OPN-BFG 7.0 6.2 9.5 12.0 3.0 1.8 7.5 27.5

10" GOM4-5 OPN-BFG 7.0 6.2 9.5 12.0 3.0 1.8 7.5 27.5

12", 14" GOM4-6 OPN-BFG 7.8 6.4 9.5 12.0 3.0 2.0 12.5 33.0

16" GOM4-7 – 11.5 9.6 15.0 16.0 4.2 2.5 20.0 70.5

18" GOM4-8 – 11.5 9.6 15.0 16.0 4.2 2.5 20.0 70.5

20" GOM4-9 – 11.5 9.6 15.0 16.0 4.2 2.5 20.0 70.5

24" GOM4-10 – 12.6 9.1 15.0 24.0 4.5 2.0 20.0 80.0To operate Watts’ butterfly valves with 2" square nut, a gear actuator must be used by removing gear handwheel and installing 2" nut on gear shaft. Valve should be installed such that gear shaft is vertical for 2" nut operation. Refer to Watts price list PL-WR for ordering codes and prices.

Weatherproof gear actuator/ Construction

Case Cast ironWorm SteelSegment Ductile ironinput Shaft Steelhandwheel gray iron

available in 36" or 48" lengths for 2" – 12" DBF or BF Series valves.

Chainwheel

Standard handle10-position

B

C

D

a

Butterfly Valve

eF

adjustable Stops (Set Screws)

Butterfly ValvesDBF and BF Series Methods of Operation

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Page 9: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

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10 - DBF - 03 - 121 - 1G - M3 Size: 2" - 12" (50mm - 300mm) DBF 2" - 24" (50mm - 600mm) BF

Origin: DBF - Domestically Assembled BF - International

Series: 03; Full Lug 04; Wafer

Body: 1; Ductile Iron 2; 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 GF® 2" -12" only (50mm - 300mm)

Operator: 0; No handle 2" - 24" (50mm - 600mm) G; Gear Operator 2" - 48" (50mm - 1200mm) 5; Lever handle (10-position only) - 2" - 12" (50mm - 300mm) P; Positioning/locking kit with handle 2" - 12" (50mm - 300mm)

Body – Ductile Iron ASTM A-536

Disc – Electroless Nickel Plated Ductile Iron ASTM A-395; Aluminum Bronze ASTM A-148; 316 Stainless Steel ASTM A-351

Shaft – 416 Stainless Steel, 316 Stainless Steel on 316SS Disc Models

Seat – EPDM to (+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)

Bushings – Duralon 2" – 12" Bronze 14" – 24"

Stem O-ring – Buna-N

Materials

M3 Series

How to order Watts Butterfly Valves

†Do not use EPDM when hydrocarbons are present.

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Page 10: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

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Notes

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Page 11: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

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Page 12: Butterfly Valves - Watts Water Technologiesmedia.wattswater.com/F-CDBF.pdf · All Watts butterfly valves meet the stringent requirements of HVAC, Irrigation, ... comply with API 609

For Technical and Ordering Assistance, please call us at 978-688-1811.

To locate your nearest Watts representative, please click on our find a sales rep locator on watts.com.

Represented by:

F-CDBF 1149 © 2011 Watts

USA: No. Andover, MA • Tel. (978) 688-1811 • Fax: (978) 794-1848 • www.watts.comCanada: Burlington, ON • Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.wattscanada.ca

A Watts Water Technologies Company

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