Butterfly Valves. watts.com

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1 Butterfly Valves watts.com

2 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. 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.

3 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 Duralon is a registered trademark of Rexnord Corporation; Viton GF, Teflon and Dacron are registered trademarks of E.I. DuPont DeNemours & Co. 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. 1

4 Butterfly Valves DBF 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" ( mm). 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 supplied with a phenolic seat backing, while the 14" 24" ( mm) 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 applications 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 2 DBF series butterfly valves use domestic and foreign components that have been assembled and tested in the U.S.A.

5 Valve Features Shaft Seal Bidirectional 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. Mounting Pad ISO 5211 bolt pattern for easy adaptation for actuators, gear operators, and lever handles. Bushings Three composite Duralon bushings in 2" 12" valves and three bronze bushings in 14"-24" valves provide shaft support and alignment. Body Watts 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. Nameplate Calls out disc, seat and shaft material. Disc Disc edge is machined and polished 360 to assure leak-tight shutoff while minimizing operating torque. Dead-End Service Dead-end service feature for all lug style valves is standard. This complies with API 609, Fifth Edition requirements on seat retention. Valves suitable 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. Phenolic Backed Seat Phenolic Backed Seat: The phenolic backing 2" 12" (50-600mm) or aluminum backing 14" 24" ( mm) 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. Pinned Disc The disc-to-shaft attachment is accomplished by the use of taper pins. The pins minimize flow turbulence, thus improving Cv ratings. 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. Lugged style DBF-03-M2 3

6 Butterfly Valves DBF and BF Series Dimensions and Weights 2" through 24" D G F N B(CL) P A (4) "O" Diameter of holes on the "N" bolt circle 45 off center. E I Q I E J Across flats 45 C H Dia. C 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" " " " " " " " " " " " " " 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" "-11UNC x 1 5 8" " "-11UNC x 1 3 4" " "-11UNC x 1 3 4" " "-11UNC x 2" " "-10UNC x " " "-10UNC x " " "-10UNC x 2 3 8" " "-9UNC x 2 5 8" " "-9UNC x 3" 1 4 x x " "-8UNC x 3" 1 4 x x " "-8UNC x 3 3 8" 5 16 x x " "-7UNC x 4 1 8" 3 8 x x " "-7UNC x 5 1 8" 3 8 x x " "-7UNC x 6" 1 2 x x 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. 4 Refer to Watts price list PL-WR for ordering codes and prices.

7 Torque Ratings *Seating torques for 2-12 standard size discs are rated at 200 psi, and at 150 psi shut off under normal conditions; 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. Size SEATING TORQUE Buna-N, EPDM (in./lbs.) NormalConditions WET/DRY 2" 134/ " 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 Size CV RATING (Full Open) CV Rating 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" ( 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. Refer to Watts price list PL-WR for ordering codes and prices. 5

8 Butterfly Valves DBF and BF Series Methods of Operation Handles Standard handle 10-position Positioning/Locking Kit - for converting standard ten-position handle to deluxe handle with memory stop, infinite position stop, locking device. Indicator/ Stop plate Handle Kit Information Mounting bolts and nuts Latch plate Memory stop bolt and nut Valve Size Std. Handle Position/Locking Chain-Wheels Chain 2", 2 1 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" ( mm) HK-2000-M2 #6 Pos/Lock #3 BCWK #3 BCWC 16", 18", 20" ( mm) #4 BCWK #3 BCWC 24" (600mm) #5 BCWK #5 BCWC Chainwheel kits attach to gear actuator handwheel. Refer to Watts price list PL-WR for ordering codes and prices. Gear Actuators C B D Adjustable Stops (Set Screws) A E F Butterfly Valve 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", 2 1 2", 3" GOM4-1 OPN-BFG " GOM4-2 OPN-BFG ", 6" GOM4-3 OPN-BFG " GOM4-4 OPN-BFG " GOM4-5 OPN-BFG ", 14" GOM4-6 OPN-BFG " GOM " GOM " GOM " GOM To 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. 6 Chainwheel Available in 36" or 48" lengths for 2" 12" DBF or BF Series valves. Weatherproof Gear Actuator/ Construction Case Cast Iron Worm Steel Segment Ductile Iron Input Shaft Steel Handwheel Gray Iron

9 How to order Watts Butterfly Valves Size: Origin: Series: Body: Disc: Shaft: Seat: Operator: 2" - 12" (50mm - 300mm) DBF 2" - 24" (50mm - 600mm) BF DBF - Domestically Assembled BF - International 03; Full Lug 04; Wafer 1; Ductile Iron 2; Ductile Iron 1; Ductile Iron 2; Aluminum Bronze 3; 316 Stainless Steel 1; 416 Stainless Steel 316SS on stainless steel disc models 1; EPDM 2; Buna-N 3; Viton GF 2" -12" only (50mm - 300mm) 10 - DBF G - M3 0; No handle 2" - 24" (50mm - 600mm) G; Gear Operator 2" - 48" (50mm mm) 5; Lever handle (10-position only) - 2" - 12" (50mm - 300mm) P; Positioning/locking kit with handle 2" - 12" (50mm - 300mm) M3 Series Materials Body Ductile Iron ASTM A-536 Disc Shaft Electroless Nickel Plated Ductile Iron ASTM A-395; Aluminum Bronze ASTM A-148; 316 Stainless Steel ASTM A Stainless Steel, 316 Stainless Steel on 316SS Disc Models Seat EPDM to (+5 F to F, -15 C to +120 C) Buna N (+14 F to F, -10 C to +80 C) Viton (-4 F to F, -20 C to +150 C) Bushings Duralon 2" 12" Bronze 14" 24" Stem O-ring Buna-N Do not use EPDM when hydrocarbons are present. 7

10 Notes 8

11

12 For Technical and Ordering Assistance, please call us at To locate your nearest Watts representative, please click on our find a sales rep locator on watts.com. Represented by: A Watts Water Technologies Company F-CDBF 1149 USA: No. Andover, MA Tel. (978) Fax: (978) Canada: Burlington, ON Tel. (905) Fax: (905) Watts

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