Keystone Butterfly Valves Figure AR1/AR2 General Purpose Valve Resilient seated butterfly valves AR1 (wafer) (2" to 36"), 2" to 12", to 175 psi AR2 (lug) (2" to 24"), 14" to 36", to 150 psi Features and Benefits • Triple function resilient seat helps provide bi-directional drop-tight shut-off, designed to totally isolate the valve body and stem from the line media. • Molded-in O-ring seat design serves as flange seals, eliminating the need for gaskets between the flanges and the valve. • Unique dovetail seat retention design allows for convenient and economical field replacement. • Superior one-piece through shaft design provides high strength and positive disc control. • Internal shaft seal is designed to prevent external media from entering valve and it also adjusts for pressure and shaft rotation. • Heavy-duty, corrosion resistant top bushing delivers upper stem support, absorbs actuator side-loading and extends valve cycle life. • Polished disc edge helps ensure optimal performance and maximum seat life. • Stainless steel torque plug (2" to 12"), disc screws (14" to 20") and taper pins (24" to 36") provide positive leak- proof connections while allowing for quick and easy disassembly. • One-piece body with extended General Application Technical Data neck allows clearance for flanges Ideally suited for many high Size Range: and insulation. performance applications, such Figure AR1 (wafer style) 2" to 36" • Each valve is factory-tested to as fire protection, water treatment, Figure AR2 (lugged style) 2" to 24" 110 percent of the manufacturer’s cooling systems, food and beverage Flange Standard: pressure rating. and bulk product handling. Consult your ANSI Class 125/150 sales representative for appropriate (Consult your sales representative for additional materials and specific services. drilling standards.) Keystone is either a trademark or registered trademark of Tyco International Services AG or its affiliates in the Flow Control United States and/or other countries. All other brand names, product names, or trademarks belong to their respective holders. Copyright © 2010 Tyco Flow Control. All rights reserved. KEYMC-0025-US-1001 Keystone Butterfly Valves Figure AR1/AR2 General Purpose Valve Parts and Materials 3 5 6 1 8 7 2 4 8 Materials Part Standard Material Material Specification Optional Material 1 Body Cast iron ASTM A-126, Class B Carbon steel Ductile iron ASTM A-395 GR 60/40/18 Stainless steel 2 Disc Ductile iron ASTM A-536 GR 65/45/12 Aluminum bronze ASTM B-148, UNS C95200 Grade A 316 Stainless steel ASTM A-743, CF8M 3 Stem 316 Stainless steel (2" to 12") ASTM A-276 UNS S31600 18-8 Stainless steel (14" to 20") ASTM A-276 UNS S30400 17-4 PH Stainless steel (24" to 36") ASTM A-564 UNS S17400 Phosphate treated steel (2" to 20") ASTM A-108 UNS G10450 4 Seat NBR food grade (0°F to 212°F) Fluoroelastomer (FKM) EPDM food grade (-40°F to 250°F) White NBR 5 Upper stem bushing Polyester (2" to 20") Bronze (24" to 36") 6 Stem packing NBR 7 Torque plug (2" to 12") 316 Stainless steel ASTM A-276 UNS S31600 condition A Disc screws (14" to 20") 316 Stainless steel ASTM F-593 Group 2 condition CW1 Taper pins (24" to 36") 17-4 PH Stainless steel ASTM A564 UNS S17400 H1075 8 Bearings (2" to 12") Sintered metal Copyright © 2010 Tyco Flow Control. All rights reserved. KEYMC-0025 2 Keystone Butterfly Valves Figure AR1/AR2 General Purpose Valve G H H H F D D C 45∞ 45° Q A EE B Figure AR1 Wafer Figure AR2 Lugged Figure AR1 – Dimensions (inches) Top Plate Drilling Bolt No. Hole Weight Adapt. Size A B C D EF G H Q Key Circle Holes Dia. (lbs) Code 1 1 5 1 9 3 3 1 7 2 2 4 /8 5 /2 1 /8 41 /4 /16 /8 1 /8 N/A 3 /4 4 /16 6.3 BAB 1 1 5 3 1 9 3 1 1 7 2 /2 2 /2 4 /8 61 /4 41 /4 /16 /8 2 /16 N/A 3 /4 4 /16 8.5 BAB 1 1 3 1 9 3 9 1 7 3 3 5 /8 6 /4 1 /4 41 /4 /16 /8 2 /16 N/A 3 /4 4 /16 10.0 BAB 3 1 5 7 5 1 7 4 4 6 /8 7 2 4 1 /4 /8 /16 3 /8 N/A 3 /4 4 /16 14.0 BAC 3 1 1 1 3 1 3 1 7 5 5 7 /8 7 /2 2 /8 4 1 /4 /4 /2 4 /4 N/A 3 /4 4 /16 18.0 BAD 3 1 1 1 3 1 1 1 7 65 /4 8 /2 8 2 /8 4 1 /4 /4 /2 5 /2 N/A 3 /4 4 /16 22.0 BAD 3 11 1 1 1 7 5 1 9 87 /4 10 /16 9 /2 2 /2 6 1 /4 /8 /8 7 /2 N/A 54 /16 38.0 CAE 3 3 1 1 19 1 1 9 10 9 /4 13 10 /4 2 /2 6 21 /8 N/A 9 /32 /4 x /4 54 /16 51.0 CAF 3 13 1 1 9 1 1 9 12 11 /4 14 /16 12 /4 3 6 21 /8 N/A 11 /16 /4 x /4 54 /16 71.0 CAF 1 3 3 1 5 5 9 14 13 /4 16 /4 12 3 6 31 /8 N/A 13 /8 /16 x /16 54 /16 114.0 CAG 1 1 61 5 3 3 9 16 15 /4 19 /4 12 /64 4 63 1 /8 N/A 15 /8 x /8 54 /16 193.0 CAH 1 1 1 1 1 7 7 1 3 1 13 18 17 /4 21 /2 14 /2 4 /4 84 /4 1 /8 N/A 16 /8 /2 x /8 6 /2 4 /16 222.0 DAJ 1 3 7 1 7 3 1 3 1 13 20 19 /4 23 /4 15 /8 5 84 /4 1 /8 N/A 18 /4 /2 x /8 6 /2 4 /16 315.0 DAJ 1 1 1 15 1 7 5 1 3 1 13 24 23 /4 28 /4 19 /2 5 /16 84 /4 1 /8 N/A 22 /8 /2 x /8 6 /2 4 /16 506.0 DAJ 1 5 9 1 1 11 1 3 1 13 30 29 /4 34 /8 23 6 /16 84 /4 2 /4 N/A 28 /16 /2 x /8 6 /2 4 /16 610.0 DAK 1 1 3 7 1 7 1 3 1 1 13 36 35 /4 41 /4 27 /4 7 /8 85 /4 2 /8 N/A 34 /2 /4 x /2 6 /2 4 /16 1,185.0 DAV Figure AR2 – Dimensions (inches) Top Plate Drilling Tapped Lug Data Bolt No. Hole Bolt No. Weight Adapt. Size A B C D E F GH Q Key Circle Holes Dia. Circle Holes Tap (lbs) Code 1 1 5 1 9 3 3 1 7 3 5 22 4 /8 5 /2 1 /8 41 /4 /16 /8 1 /8 N/A 3 /4 4 /16 4 /4 4 /8 - 11 UNC 7.0 BAB 1 1 5 3 1 9 3 1 1 7 1 5 2 /2 2 /2 4 /8 61 /4 41 /4 /16 /8 2 /16 N/A 3 /4 4 /16 5 /2 4 /8 - 11 UNC 10.0 BAB 3 1 3 1 9 3 9 1 7 5 33 5 /16 6 /4 1 /4 41 /4 /16 /8 2 /16 N/A 3 /4 4 /16 64 /8 - 11 UNC 11.5 BAB 3 1 5 7 5 1 7 1 5 44 6 /8 7 2 41 /4 /8 /16 3 /8 N/A 3 /4 4 /16 7 /2 8 /8 - 11 UNC 18.0 BAC 3 1 1 1 3 1 3 1 7 1 3 55 7 /8 7 /2 2 /8 41 /4 /4 /2 4 /4 N/A 3 /4 4 /16 8 /2 8 /4 - 10 UNC 22.5 BAD 3 1 1 1 3 1 1 1 7 1 3 65 /4 8 /2 82 /8 41 /4 /4 /2 5 /2 N/A 3 /4 4 /16 9 /2 8 /4 - 10 UNC 28.5 BAD 3 11 1 1 1 7 5 1 9 3 3 87 /4 10 /16 9 /2 2 /2 61 /4 /8 /8 7 /2 N/A 5 4 /16 11 /4 8 /4 - 10 UNC 49.0 CAE 3 3 1 1 19 1 1 9 1 7 10 9 /4 13 10 /4 2 /2 62 1 /8 N/A 9 /32 /4 x /4 5 4 /16 14 /4 12 /8 - 9 UNC 69.0 CAF 3 13 1 1 9 1 1 9 7 12 11 /4 14 /16 12 /4 3 62 1 /8 N/A 11 /16 /4 x /4 54 /16 17 12 /8 - 9 UNC 107.0 CAF 1 3 3 1 5 5 9 3 14 13 /4 16 /4 12 3 63 1 /8 N/A 13 /8 /16 x /16 54 /16 18 /4 12 1 - 8 NC 143.0 CAG 1 61 5 3 3 9 1 16 15 /4 19 12 /64 4 63 1 /8 N/A 15 /8 x /8 54 /16 21 /4 16 1 - 8 NC 238.0 CAH 1 3 1 1 1 7 7 1 3 1 13 3 1 18 17 /4 21 /8 14 /2 4 /4 84 /4 1 /8 N/A 16 /8 /2 x /8 6 /2 4 /16 22 /4 16 1 /8 - 7 NC 261.0 DAJ 1 1 7 1 7 3 1 3 1 13 1 20 19 /4 23 /2 15 /8 5 84 /4 1 /8 N/A 18 /4 /2 x /8 6 /2 4 /16 25 20 1 /8 - 7 NC 366.0 DAJ 1 1 1 15 1 7 5 1 3 1 13 1 1 24 23 /4 28 /4 19 /2 5 /16 84 /4 1 /8 N/A 22 /8 /2 x /8 6 /2 4 /16 29 /2 20 1 /4 - 7 NC 576.0 DAJ Notes: 1. “H” Dimension refers to flat on stem. 2. “Q” dimension is the minimum allowable pipe or flange inside diameter at the centered body face to protect the disc sealing edge against damage when opening the valve. Copyright © 2010 Tyco Flow Control. All rights reserved. KEYMC-0025 3 Keystone Butterfly Valves Figure AR1/AR2 General Purpose Valve Valve Sizing Rate of flow through a valve depends Table 1 upon the pressure drop. The most C Chart (Water @ 70°F, Specific Gravity = 1.00) common method of presenting this v Valve Disc position (Degrees Open) information is by C . The C is the v v Size 20 30 40 50 60 70 80 90 valve coefficient of flow and represents the flow of water in gallons per minute 2" 1.3 5 14 26 40 52 59 60 (GPM) with a 1 psi pressure drop 2.5" 1.4 6 21 44 74 107 138 151 through the valve. The higher the C , v 3" 1.5 8 29 67 115 175 234 262 the greater the flow and the better the 4" 15 48 107 196 318 463 589 647 control characteristics. Throttling characteristics are shown in the same 5" 32 99 206 362 579 832 1045 1141 manner with C ’s at the various disc v 6" 47 145 295 510 810 1160 1450 1580 openings. See Table 1 for tabulated C ’s v 8" 84 239 450 751 1190 1754 2385 2892 for the Figure AR1/AR2 Butterfly Valve. 10" 133 360 652 1064 1683 2524 3596 4593 12" 192 509 899 1449 2288 3470 5085 6682 14" 340 770 1400 2200 3400 5600 7900 10000 16" 440 1000 1800 2800 4500 7400 10800 13000 18" 570 1300 2300 3600 5800 9600 15000 18000 20" 710 1600 2900 4600 7200 12000 18400 22000 24" 1000 2300 4000 6400 10000 16500 25900 30000 30" 1500 3600 6200 9900 16000 26000 42500 47000 36" 2600 5200 9100 15000 23000 38000 65000 70000 Torque Data Torque is the rotary effort required to Table 2 operate a valve. This turning force in Seating and Unseating Torques a butterfly valve is determined by three factors – the friction of the disc and seat Category 2 (Normal Conditions) due to interference for sealing, bearing Valve Size 50 100 150 175 friction, and fluid dynamic torque. 2" 224 229 233 235 Breakaway torque at 70°F 2.5" 277 284 291 264 Breakaway torque is the total of the 3" 330 340 350 355 torques resulting from bearing friction and disc/seat interference friction at a 4" 500 519 539 549 given pressure differential. See Table 2 5" 687 724 761 779 for torques to open and close the valve 6" 953 1006 1059 1086 at pressures shown in wet services with 8" 1610 1720 1830 1885 minimum operating frequency of one 10" 2521 2751 2963 3074 per week (normal conditions). 12" 3418 3737 4055 4214 Note: These values are valid for water and lubricating fluids only at 70°F. Since torques are 14" 5147 5995 6842 – greatly increased for dry and nonlubricating 16" 6808 8116 9424 – fluids and temperature variations, contact your Keystone representative for accurate values in 18" 8810 10720 12630 – Tathese applications. 20" 11172 13845 16517 – 24" 13372 16994 20616 – 30" 22074 29148 36222 – 36" 33224 45448 57672 – www.keystonevalves.com Tyco Flow Control (TFC) provides the information herein in good faith but makes no representation as to its comprehensiveness or accuracy. This data sheet is intended only as a guide to TFC products and services. Individuals using this data sheet must exercise their independent judgment in evaluating product selection and determining product appropriateness for their particular purpose and system requirements. TFC MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT(S) TO WHICH THE INFORMATION REFERS. ACCORDINGLY, TFC WILL NOT BE RESPONSIBLE FOR DAMAGES (OF ANY KIND OR NATURE, INCLUDING INCIDENTAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES) RESULTING FROM THE USE OF OR RELIANCE UPON THIS INFORMATION. Patents and Patents Pending in the U.S. and foreign countries. Tyco reserves the right to change product designs and specifications without notice. All registered trademarks are the property of their respective owners. Printed in the USA. Copyright © 2010 Tyco Flow Control. All rights reserved. KEYMC-0025 www.tycoflowcontrol.com 4