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Butterfly-Valves.pdf

BUTTERFLY VALVE SERIES NE STYLE INFORMATION The MUD KING wafer and lug type butterfly valves are designed to meet the stringent requirements of chemical plants, processing plants, power plants, refineries, shipbuilding, pulp and paper mills, and wherever positive shut-off is required for liquids, oil, gas, and gas slurries. They are also the ideal choice for heating, ventilation and air conditioning applications. THE LEADER AND 1 CHOICES IN THE OIL DRILLING INDUSTRY STEM FLATS INDICATOR POSITION OF DISC TWO SELF-LUBRICATING BRONZE BEARINGS PROVIDE LOAD SUPPORT AND SMOOTH OPERATING STEM RETAINER PINS ENSURING A BLOW OUT PROOF DESIGN DOUBLE DRIVE GIVES POSITIVE STEM AND DISC CONNECTION MAXIMUM FLOW DISC ONE PIECE RIBBED WAFER OR LUG BODY NE BUTTERFLY VALVES 2“ – 12“ 14“ – 24“ AVAILABLE ON REQUEST Demco is a registered trademark of another company. MUD KING Products is not affiliated with Demco. Reference to company name is for identification purposes only and are not trademarks or trade names used by or affiliated with MUD KING Products. PROVEN PHENOLIC BONDED CARTRIDGE SEAT Page 1 BUTTERFLY VALVE DESIGN FEATURES - 2“ – 12“ Page 2 BODY One piece bodies are ribbed to assure high strength and minimum weight. Bodies are cast in both wafer and tapped-lug patterns, in a wide variety of material choices, to meet virtually every installation requirement. Body rating is ANSI Class 150 285 psi non-shock. Wafer body diameters are designed to self-center in ANSI 150 flange patterns. The large top flange provides a secure mounting area for automatic or manual actuators. DISC MK Butterfly Valve discs and seat are configured for low pressure drop and high flow coefficients. Full radius polished edges slide into drop tight seat engagement with little turning effort. SEAT The MK Butterfly Valve seat is constructed by bonding a resilient elastomer to a rigid back-up ring, which forms the outside periphery of the seat. Slip fitted in the valve body, the seat is field replaceable without special tools. In the closed position, the disc rim and stem seal lands form an uninterrupted line of sealing contact with the resilient seat, to assure drop tight sealing at rated shutoff pressure. MKP seats is offered in a wide range of materials. FLANGE SEALS The inner surface of the seat is widened to project outside the face-to-face width of the valve body. When mounted between weld neck or socket flanges, the extra rubber is compressed to form a positive seal against both flanges. The seal surface, near the outer periphery of each seat face is designed to seal against slip-on or threaded flanges. Only valves with throttling discs require gaskets. DISC DRIVE Proper – orientation of the stem/disc connection is assured by the rectangular drive. The disc is permitted to float on the stem to perfectly center in the valve seat. STEMS Upper stems are flatted for positive drive and for easy installation of handles and actuators. Retained by tangential pins, upper and lower stems are blowout proof for safety when handles or actuators are removed from the valve top. STEM JOURNAL Two self-lubricating bronze bearings reduce torsional friction, eliminate galling and seizing of the stem, while supporting the stem against side loading from pressure on the closed disc. MK places one bearing at the base of the stem. STEM SEALS The stem holes in the disc are surrounded by an annular raised land which passes the seat onto the seat flat at every angular position of the disc. The resilient seat presses back with a higher specific force than the line pressure, preventing leakage to the stem. In competitive stem seal designs with boot seats, a seal is accomplished by an interference “squeezing“ on the stem, or an o-ring in the stem journal. The potential for leakage behind the seat is high. As the disc wipes the seat, elongation of the stem seal area allows leakage to collect behind the seat. This condition is eliminate by MKP dry stem journal and hard-backed seat. Disc Stem BUTTERFLY VALVE Page 3 DESIGN FEATURES – 2“ 12“ PRESSURE RATING Three drop tight pressure ratings are offered for MK Butterfly Valves. Normally, 200 psi shutoff is used in butterfly applications. However, 285 psi shutoff is optionally available for higher pressure applications. For smaller actuator sizing, 50 psi valves offer reduced torque. For minimum torque, throttling valves, which do not provide drop tight closure, are available. END-OF-LINE SERVICE Lug body valves may be used in end-of-line ser- vice, with downstream piping removed. Weld neck or socket flanges, only can be used for this service. Since upstream pressure is excluded between the flange seal, there is no effective force to slide the seat downstream. MKP Lug Butterfly Valves are recommended for liquid service up to 200 psi with downstream piping removed. Lug body valves are recommended for isolation of pumps, control devices, or other system compo- nents which may need to be removed for repair or replacement. Lug valves are also suitable for installation at points from which piping expansions may proceed. Such valves are normally blanked with blind flanges, to protect the exposed seats, until new piping is attached. ACTUATION Positive latch handles, worm gear operators, and automatic actuators are available and totally inter-changeable on the MKP valve. The MKP to flange is dimensionally compat- ible with other competitive butterfly valves. With optional “utility top“ stem, the MKP valve interchange directly with competitive valves, allowing valve replacement without the need for new actuation. INSTALLATION AND MAINTENANCE MKP Butterfly Valves are bi-directional, with identical flow-way from either face. To install, simply close the valve, insert between flanges and make up with studs or cap screws. No regular maintenance or lubrication is ever required. Disassembly is simple, for inspection or replacement of parts. Open the valve, remove handle or actuator, remove tangential pins, pull out stems and push the disc and seat out of the body. Reassem- ble in reverse order, with a small amount of general purpose non-hydrocarbon based lubricant on the out- side of stems, seat, and disc flats. Steel or cast iron flanges of either raised or flat-faced type are suitable for use with MKP Butterfly Valves. BUTTERFLY VALVE Page 4 ORDERING INFORMATION FOR NE STYLE VALVE ASSEMBLY PART NUMBER A base part number defines series, size, and shutoff pressure, and is followed by a 7-digit suffix which specifies all options, including handles. 1 Wafer 5 Lug 4 Ductile Iron Lug 2 Gray Iron Wafer 2“ – 12“; Lug 2“ – 8“ 1 416 SS 2 316 SS 4 Aluminum Bronze 5 Nickle Plated Ductile Iron 6 Nylon 11 Coated Ductile Iron 31 Buna-N 32 Black Neoprene 33 Hypalon 34 Viton 35 EPDM 36 Natural Rubber 37 White Neoprene Special 1 10 Position Lug 5 Square Nut 6 2 Position Lkg. 9 None BODY CONFIGURATION BODY MATERIAL STEM MATERIAL DISC MATERIAL SEAT ELAS. HANDLE BASE NUMBER from table below XXXXX - X X X X X X COMPONENT DESCRIPTION 2“ 2“ 3“ 4“ 5“ 6“ 8“ 10“ 12“ NE-C 200 psi M22119 M22120 M22121 M22122 M22123 M22124 M22125 M22126 M22127 WEIGHT Wafer 5.8 7.0 7.7 11.4 14.7 17.6 28.5 47.9 71.0 LBS. Lug 8.0 9.9 10.7 17.0 24.5 28.5 43.5 65.9 98.5 NE-D 200 psi M22181 M22129 M22182 M22183 M22184 M22185 M22134 M22186 M22136 Weight lbs. - bare stem Wafer 4.9 6.4 6.9 10.2 13.7 16.4 28.4 44.8 66.8 HANDLE PARTS - STANDARD TRIM REF NO. COMPONENT DESCRIPTION 2“ – 4“ 5“ – 6“ 8“ 10“ 12“ ASSY. BASE PART NO. -10 POSITION M24227-001 M24228-001 M24229-001 M24230-001 M24231-001 -2 POSITION M24232-001 M24233-001 M24234-001 M24235-001 M24236-001 1 SCREW Steel M5650-24020 M5650-28024 2 HANDLE Ductile Iron M24237-001 M24238-001 M24239-001 M24240-001 M24241-001 3 LATCH Zinc Plated Steel M23719-001 M23720-001 M23721-001 4 SPRING Spring Steel M16238 5 SPRING PIN Spring Steel M5445-25014 M5446-37516 6 THROTTLE PLATE -10 POSITION M24242-001 M24243-001 M24244-001 M24245-001 M24246-001 -2 POSITION M24247-001 M24248-001 M24249-001 M24250-001 M24251-001 7 LOCK WASHER Steel M5900-006 M5901-008 8 NUT Zinc Plated Steel M5327-024 M5327-028 9 SET SCREW Steel M5727-22012 M5727-22016 DIMENSIONS M 9.50 11.00 15.00 15.00 22.00 N 0.85 1.07 1.13 1.13 1.13 HANDLE WEIGHTS lbs 2 or 10 Pos. Lkg. 2 3 5 5 9 BUTTERFLY VALVE Page 5 REPLACEMENT PARTS FOR THE NE STYLE REF NO. COMPONENT DESCRIPTION 2“ 2“ 3“ 4“ 5“ 6“ 8“ 10“ 12“ 1 BODY NE-C Wafer M22137-012 M22138-012 M22139-012 M22140-012 M22141-012 M22142-012 M22143-012 M22144-012 M22145-012 ASTM A48 Gray Iron -012 NE-C Lug M21986-05x M21987-05x M21988-05x M21989-05x M21990-05x M21991-05x M21992-05x M21993-051 M21994-051 Options ASTM A395 Ductile Iron -051, ASTM A48 Gray Iron -052 NE-D Wafer M22187-021 M22682-011 M22188-021 M22189-021 M22190-021 M22191-021 M22687-011 M22192-021 M22689-011 2 SEAT M1786-xxx M1788-xxx M1790-xxx M1792-xxx M1794-xxx M1002-xxx M1798-xxx M1815-xxx M1817-xxx Options -031 Buna-N -032 Blk. Neoprene -033 Hypalon -034 Viton -035 EPT -036 Nat. Rubber -037 While Neoprene -x Special 3 DISC 200 psi M22045-0xx M22046-0xx M22047-0xx M22048-0xx M22049-0xx M22050-0xx M22051-0xx M22052-0xx M22053-0xx Options -002 316 SS -005 Ni. Plated Duct Iron -014 Alum. Bronze 4 UPPER STEM NE-C M22066-00x M22067-00x M22068-00x M22069-00x M22070-00x M22071-00x M22072 -00x NE-D M22073-00x M22074-00x M22193-00x M22194-00x M22195-00x M22077-00x M22078-00x M22079-00x 6 LOWER STEM M22080-66x M22081-00x M22082-00x M22083-00x M22084-00x M22085-00x M22086-00x Options -001 416 SS -002 316 SS -004 Phos. Coated Steel 7 SPRING PIN 2 302 SS M5448-18720 M5448-18724 M5448-25028 8 RETAINER Stainless Steel M22117 M13704 M13705 M13706 M13707 9 TOP O-RING Buna-N M5526-114 M5526-115 M5526-117 M5526-119 M5526-125 10 STEM O-RING Buna-N M5526-113 M5526-115 M5526-116 M5526-212 M5526-214 M5526-220 11 BEARING Bronze M22526-001 M22118-001 M13112-001 M13115-001 M13116-001 M13117-001 BUTTERFLY VALVE SERIES NE-C STYLE 2“– 12“ ENGINEERING Page 6 THE NE-C STYLE BUTTERFLY VALVES ARE OFFERED IN WAFER OR LUG DESIGN WHICH MOUNT IN BETWEEN ANSI 125/150 FLANGES VALVE SIZE A C D E F G H J K L N P R S 2“ 1.74 5.62 8.44 4.12 4.00 3.25 .408 4.75 5/8 - 11 4 1.00 .44 .625 .375 2 “ 1.86 6.12 9.19 4.88 4.00 3.25 .408 5.50 5/8 - 11 4 1.00 .44 .625 .375 3“ 1.86 6.38 9.69 5.36 4.00 3.25 .408 6.00 5/8 - 11 4 1.00 .44 .625 .375 4“ 2.11 7.12 11.00 6.88 4.00 3.25 .408 7.50 5/8 - 11 8 1.00 .44 .625 .375 5“ 2.24 7.75 12.12 7.75 4.00 3.25 .408 8.50 3/4 - 10 8 1.25 .44 .838 .500 6“ 2.24 8.25 13.25 8.75 4.00 3.25 .408 9.50 314 - 10 8 1.25 .44 .838 .500 8“ 2.54 9.44 15.56 11.00 6.00 5.00 .533 11.75 3/4 - 10 8 1.38 .56 .838 .500 10“ 2.74 11.25 18.69 13.38 6.00 5.00 .533 14.25 7/8 - 9 12 1.38 .56 .963 .625 12“ 3.24 12.19 21.69 16.12 6.00 5.00 533 17.00 7/8 - 9 12 1.38 .56 1.338 .750 DIMENSIONS Shutoff Pressure 2“ 2“ 3“ 4“ 5“ 6“ 8“ 10“ 12“ 50 PSI SHUTOFF 88 96 150 225 350 450 750 1325 2250 75 PSI SHUTOFF 98 141 237 243 504 651 1050 1778 2990 100 PSI SHUTOFF 103 148 249 261 531 685 1105 1872 3147 125 PSI SHUTOFF 107 155 260 375 553 714 1151 1950 3279 150 PSI SHUTOFF 110 158 265 384 564 728 1775 1989 3345 175 PSI SHUTOFF 121 175 283 417 632 814 1337 2320 3928 200 PSI SHUTOFF 132 192 300 450 700 900 1500 2650 4500 250 PSI SHUTOFF 145 211 318 485 770 990 1695 2995 5085 285 PSI SHUTOFF 160 232 337 528 847 1089 1915 3384 5746 CLASS II TORQUES Inch - Pounds Value Size 10 20 30 40 50 60 70 80 90 2“ 2 5 10 18 28 55 77 127 153 2 ‘’ 3 7 14 24 41 87 115 186 242 3“ 4 12 23 37 66 129 186 274 337 4“ 6 24 44 76 125 241 312 521 601 5“ 8 32 87 158 257 298 632 983 1122 6“ 9 52 148 244 413 786 1028 1633 1949 8“ 12 101 246 418 693 1279 1732 2702 3232 10“ 21 165 393 667 1144 2140 2744 4276 4979 12“ 28 233 555 992 1588 3096 4044 6048 7481 Class II Valve to be operated a minimum of once a month. Temperature wall within resilient seat limits. Line media is a self lubricating Aqueous liquids *. Minor chemical attacks on seat. Disc corrosion and media deposits to be mild. Notes 1. The chart to be used as a guide only. 2. These torque rating do not apply to every possible service criteria, which may affect seating and unseating torque. 3. Torque values are applicable to MUD KING NE-C values. 4. Do not apply a safety factor to the above torque values when sizing actuators. 5. Dynamic Torque should always be a consideration when sizing valves with high differential pressures. 6. For 3 way tee assemblies multiply the above torques by 1.5. TYPE COMPOUND TYPE OF SERVICE TEMPERATURES Buna-N General purpose elastomer compound for maximum hydrocarbon or petroleum. 0 F – 180 F Black Neoprene Complies with FDA guidelines and generally used in food and beverage service and resistant to brine, vegetable oils, and oxygen. 0 F – 180 F White Neoprene Same chemical resistant as black neoprene in physical properties are not as good as black. White neoprene should only be used when black cannot be tolerated and storage should be in low light conditions. 0 F – 180 F Viton Excellent in harsh chemical environments and elevated temperatures. 20 F – 300 F Hypalon Excellent in acids and hydrocarbons and very high chemical resistant. 0 F – 180 F Natural Rubber Recommended for dry material handling and high abrasion resistance. Use in oils and solvents not recommended. 30 F – 150 F EPDM Formulated to comply with FDA guidelines, this material in suitable for food service except edible oils and milk. 30 F – 275 F MUD KING Products is not affiliated with EJ Dupont De Nemours. Reference to company name is for identification purposes only and are not trademarks or trade names used by or affiliated with MUD KING Products.

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