METAL SEATED NELDISC BUTTERFLY VALVES, SERIES L12

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1 METAL SEATED NELDISC BUTTERFLY ALES, SERIES L12 2 L12 20 Issue 4/99 SIZES AND PRESSURE RATINGS Size range DN , 3" - 24". Pressure ratings PN 10, 16, 25 and ANSI 150. FEATURES Third-generation, metal-to-metal seated Neldisc butterfly valve. Designed especially for paper and pulp applications. Light weight easy to install. Compact overall design with minimal space demand. Can be mounted between all common pipe flanges. Two-shaft construction and seat located in the body groove give high flow capacity and minimum flow resistance. Excellent tightness by using famous Neldisc seating principle. Bidirectionally tight construction where seating is mechanically induced and does not rely on differential pressure. Less routine maintenance Reliability, undisturbed operation and freedom from routine maintenance are some of the cost saving features the valve offers. The Neldisc L12 valve has a rugged one piece body. Neither the forces in the pipeline nor thermal fluctuation have any effect on the operation or tightness of the valve. The rigid floating type stainless steel metal seat with double offset elliptical disc offers a seating free of mechanical wear. The valve can handle pulp stocks up to 2.5% in control service and up to 4% in on off service. This covers almost 100% of the conditions under which butterfly valves operate in the pipelines of the pulp and paper industry. Reasonable spare valve stock Since the Neldisc L12 is suitable for nearly all butterfly valve applications in the pulp and paper industry, the range of spare valves needed could be reduced to just one, a universal Neldisc. Greater interchangeability means smaller inventory investments. Applications The Neldisc butterfly valves are widely used in applications such as: Liquids Gases Steam Pulpstocks both on control and shutoff services.

2 N E L E S C O N T R O L S EXPLODED IEW Identification number Charge number Mfg-number PARTS LIST ITEM QTY PART DESCRIPTION MATERIAL 1 1 BODY Stainless steel 2 1 CLAMP RING Stainless steel 3 1 DISC Stainless steel 4 1 SEAT RING Ni Fe base superalloy + Hard chrome 9 1 GLAND Stainless steel 10 1 BLIND FLANGE Stainless steel 11 1 DRIE SHAFT Stainless steel 12 1 SHAFT Stainless steel 13 1 KEY Stainless steel 14 3 PIN Stainless steel 15 1 BEARING PTFE on stainless steel net 16 1 BEARING PTFE on stainless steel net 18 1 GASKET Graphite 20 5 GLAND PACKING Polytetrafluoroethylene (PTFE) 24 2 STUD Stainless steel 25 2 HEXAGON NUT Stainless steel 26 HEXAGON SCREW Stainless steel 29 1 IDENTIFICATION PLATE Stainless steel 42 2 RETAINING PLATE Stainless steel SEATING PRINCIPLE The disc of the valve is machined to close tolerances to create an elliptical shape similar to an oblique slice taken from a solid metal cone. When the valve is closed, the elliptical disc at the major axis displaces the seat ring outward, causing the seat ring to make contact with the disc at the minor axis. When the valve is opened, the contact is released and the seat ring returns to its original circular shape

3 M E T A L S E A T E D N E L D I S C B U T T E R F L Y A L E S, S E R I E S L 1 2 A TECHNICAL SPECIFICATION Wafer-type, full-bore, metal-to-metal seated butterfly valve. alve testing: Body One-piece PN 25/ANSI 150 rated body. Suitable for fitting between flanges to: ANSI 150 DIN PN 10, 16, 25 JIS 10, 16, 20 Face-to-face dimensions Dimensions according to: ISO 5752 (Series 20) API 609 low-pressure (Class 150) API 609 high-pressure (Class 150) except DN 350 BS 5155 (Class 150 medium) SSG 1036 Sizes DN 80, 100, 125, 150, 200, 250, 300, 350, 400, 500, ", 4", 5", 6", 8", 10", 12", 14", 16", 20", 24". alve tightness: Temperature range: Testing Each valve undergoes a shell test and a seat test. The shell test pressure is 1.5 x PN. The seat test pressure is 1.1 x PN. The test medium is inhibited water. Bidirectional 3 x ISO 5208 Rate D (improved tightness available on request) C / F Standard materials Body and disc: Stainless steel ASTM A 351 gr. CF8M (type AISI 316). Shaft, pins and key: Stainless steeltype AISI 329 (SS ). Seat: Stainless steel ASTM B 424 (Incoloy 825). Bearings: Carbon-filled PTFE reinforced with stainless steel net. Gland packing: Braided PTFE. Gaskets: Graphite. Maximum differential pressure Rated pressure differential for the trim: DN / 3"-6" p max = 25 bar / 375 psi DN 200 / 8" p max = 20 bar / 300 psi DN / 10" - 24" p max = 10 bar / 150 psi 30 Pressure/temperature ratings T ( F) C v values and flow resistance coefficients alve size mm / inch C v 80 C v 90 ζ / 3" / 4" / 5" / 6" / 8" / 10" / 12" / 14" / 16" T( C) / 20" CF8M 600 / 24" Body: PN25 rating for DN / 3" - 24". Differential pressure: DN / 3"-6"; PN25 DN200 / 8"; PN20/ANSI 150 DN / 10" -24"; PN 10 ACTUATOR SELECTION L12A p 70 max. p B1C CONTROL AIR SUPPLY B1J CONTROL P (bar) B1C ON-OFF AIR SUPPLY B1JA ON-OFF AIR SUPPLY bar / psi bar / psi bar / psi bar / psi bar / psi bar / psi bar / psi PN25 PN20/ANSI150 PN10 M-series manual gear operator DN / Inch bar / psi bar / psi 4.2 / / / / / / / / 3" 8 / / 363 B1C 6 B1C 6 B1J 8 / B1JA 8 B1C 6 B1C 6 B1J 8 B1JA 8 M07 RM / 4" 10,7/ / 363 B1C 9 B1C 9 B1J 8 / B1JA 10 B1C 9 B1C 6 B1J 8 B1JA 8 M07 RM / 5" 5,4 / / 363 B1C 9 B1C 9 B1J 10 / B1JA 10 B1C 9 B1C 6 B1J 8 B1JA 10 M07 RM / 6" 3,1 / / 363 B1C 11 B1C 11 B1J 10 / B1JA 12 B1C 11 B1C 9 B1J 10 B1JA 10 M07 RM / 8" 2,8 / / 290 B1C 13 B1C 13 B1J 12 / B1JA 16 B1C 13 B1C 11 B1J 10 B1JA 12 M / 10" 1,5 / / 145 B1C 13 B1C 13 B1J 16 / B1JA 16 B1C 13 B1C 11 B1J 12 B1JA 16 M / 12" 1,3 / / 145 B1C 17 B1C 17 B1J 20 / B1JA 20 B1C 17 B1C 13 B1J 16 B1JA 16 M / 14" 1,5 / / 145 B1C 17 B1C 17 B1J 20 / B1JA 20 B1C 17 B1C 17 B1J 16 B1JA 20 M / 16" 1,3 / / 145 B1C 20 B1C 20 B1J 20 / B1JA 20 B1C 20 B1C 17 B1J 20 B1JA 20 M / 20" 1,5 / / 145 B1C 25 B1C 25 B1J 25 / B1JA 25 B1C 25 B1C 20 B1J 20 B1JA 25 M / 24" 2,2 / / 145 B1C 32 B1C 25 B1J 32 / B1JA 32 B1C 32 B1C 25 B1J 25 B1JA 32 M P (psi) 150 RM hand lever

4 N E L E S C O N T R O L S DIMENSIONS L12A SIZE 500, 600 / 20", 24" S U N DN Ø O M P A1 A SIZES 80,100,125, / 3", 4", 5" S U R E C K ØB T SIZES / 6" - 24" DN U A A1 ØB C E K S T O R M P N UNC L12A /8 5/ L12A /2 5/ L12A /2 5/ L12A /2 5/ L12A /2 3/ L12A /2 3/ L12A /2 3/ L12A /8 3/ L12A /8 3/ L12A /4 1/ L12A / kg ps bar p70 bar SIZE U A A1 ØB C E K S T O R M P N UNC L12A /8 5/ L12A /2 5/ L12A /2 5/ L12A /2 5/ L12A /2 3/ L12A /2 3/ L12A /2 3/ L12A /8 3/ L12A /8 3/ L12A /4 1/ L12A / lbs ps psi p70 psi p s p70 = max. shut-off pressure, bar/psi, allowed by valve s mechanical strength. = max. pressure differentral, bar/psi, across 70 open valve allowed by valve s mechanical strength. L12A - RM STANDARD MOUNTING POSITION L kg DN A A1 øb C H J K L L12A 80-RM L12A 100-RM L12A 150-RM L12A 150-RM A A1 C DN Ø B H J K lbs Size A A1 øb C H J K L L12A 80-RM L12A 100-RM L12A 150-RM L12A 150-RM

5 M E T A L S E A T E D N E L D I S C B U T T E R F L Y A L E S, S E R I E S L 1 2 A L12A - M-SERIES GEAR OPERATOR øz STANDARD MOUNTING POSITION F G øb* K* J Dimension IN mm kg F G J ØZ M M M M M M Dimension IN inch lbs F G J ØZ M M M M M M ALE + PNEUMATIC ACTUATOR / B1C / B1J / B1JA NPT STANDARD MOUNTING POSITION X SIGNAL 1/4 NPT NPT SUPPLY 1/4 NPT ØB* G F K* J *) see dimensions ØB and K on table page 4. NPT kg B1C /4 4.2 B1C /4 9.6 B1C /8 16 B1C /8 31 B1C /2 54 B1C /2 73 B1C /2 131 B1C /4 256 B1C /4 446 B1C NPT lbs B1C /4 9 B1C /4 21 B1C /8 35 B1C /8 68 B1C /2 119 B1C /2 161 B1C /2 289 B1C /4 564 B1C /4 983 B1C NPT kg B1J, B1JA /8 17 B1J, B1JA /8 30 B1J, B1JA /2 57 B1J, B1JA /2 100 B1J, B1JA /4 175 B1J, B1JA /4 350 B1J, B1JA NPT lbs B1J, B1JA /8 37 B1J, B1JA /8 66 B1J, B1JA /2 126 B1J, B1JA /2 220 B1J, B1JA /4 386 B1J, B1JA /4 771 B1J, B1JA

6 N E L E S C O N T R O L S HOW TO ORDER Example L12 A 150 A A F B1C9/20 NP7 NK PRODUCT SERIES/DESIGN L12 Face-to-face length according to ISO (Series 20) API 609, BS 5155 and SSG 1036 L11 Face-to-face length according to ISO 5752 (Series 25) 6 NONSTANDARD GLAND PACKING F Graphite gland packings 7 ACTUATOR 2 PRESSURE RATINGS A Body rating PN 25/ANSI 150 DN / 3" - 6" p max = 25 bar / 375 psi DN 200 / 8" p max = 20 bar / 300 psi DN / 10" - 24" p max = 10 bar / 150 psi 3 DIAMETER NOMINAL B1C B1CM B1J B1JA M RM Pneumatic double-acting B1C with lever connection Pneumatic, spring-to-close Pneumatic, spring-to-open Manual gear operator with handwheel Hand lever 80, 100, 125, 150, 200, 250, 300, 350, 400, 500, 600 3", 4", 5", 6", 8", 10", 12", 14", 16", 20", 24" 8 POSITIONER 4 BODY AND DISC MATERIAL NP7 NE7 Pneumatic Electropneumatic A Stainless steel ASTM A 351 CF8M 9 ACCESSORIES 5 SEAT MATERIAL A Stainless steel ASTM B 424 (Incoloy 825) NK7 NI7 Mechanical limit switch unit Inductive limit switch unit INTERNATIONAL MANUFACTURING AND SALES LOCATIONS Subject to change without prior notice. UNITED STATES: Shrewsbury, Massachusetts. MEXICO: Chihuahua. BRAZIL: São José dos Campos. FINLAND: Helsinki. FRANCE: Wittenheim. PEOPLE S REPUBLIC of CHINA: Shanghai. Our products are available through Neles Controls sales offices in Australia, Austria, Belgium, Canada, Chile, Denmark, England, Germany, Indonesia, Italy, Japan, The Netherlands, Norway, Portugal, Russia, Saudi Arabia, Singapore, South Africa, South Korea, Spain, Sweden, Switzerland, Thailand, United Arab Emirates, enezuela, as well as through a world-wide network of representatives. Neles Controls Oy P.O. Box 110, Helsinki, Finland Tel. int Fax int Neles Controls Inc. P.O. Box 8004, Shrewsbury, MA 01545, USA Tel. int Fax int Neles Controls PTE. LTD 501 Orchard Road, #05-09 Wheelock Place, Singapore Tel. int Fax int NELES CONTROLS GROUP A MEMBER OF RAUMA CORPORATION

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