FLANGED METAL-SEATED NELDISC BUTTERFLY VALVES, SERIES L6

Transcription

1 FLANGED METAL-SEATED NELDISC BTTERFLY VALVES, SERIES L6 2 L6 20 Issue 1/99 Bidirectional tight seat nique all metal seat design assures superior tightness in difficult applications over long time periods. Contact between disc and seat is mechanically induced and does not rely on assistance from differential pressure. Available shutoff: Bidirectional: ISO 5208 rate 1. nidirectional: API 598 and FCI 70-2 Class VI. Excellent control capabilities Inherent flow characteristic is modified equal percentage. A nearly linear installed flow characteristic is available for many applications. Dynamic stability in both directions. Wide rangeability. Available with a variety of actuators, positioners and accessories for single source responsibility. Abrasion resistant Solid metal seat design (no fillers) offered in a variety of materials to suit your application. Fully metal-to-metal construction. No resilient parts exposed to the media. Wide pressure and temperature range Differential pressure/temperature ratings in accordance with ANSI B Appropriate constructions perform equally well from -196 C to +800 C / -320 F to F. Inherent fire-tite design Fire-tested per API 607 and BS 6755 part 2. Series L6 is a double flanged metal seated Neldisc butterfly valve for both demanding control and tight shut-off applications. It is particularly well suited for the refining, power, petrochemical and chemical industries. The L6 incorporates the Neldisc metal seated design, which provides extended life in high cycle, high temperature, abrasive applications, making it an ideal replacement for gate valves. It is available in sizes DN / 4-60, fully rated to ANSI B16.34 for Class 150 and DN / 4-40 for Class 300. Flanges are designed per ANSI B16.5 for DN / 4-24 valves and B16-47 for DN / 28 through 60 sizes. Rigid metal construction Rugged double flanged body. Suitable for use with API standard 601 spiral wound gaskets. Positive shaft retention. Single piece body eliminates potential leak paths associated with jointed bodies. High strength pins allow the valve to withstand high pressure drops in throttling positions. Low cost of ownership Extremely high cycle life minimizes need for maintenance. Change packing without removing actuator. Totally interchangeable seats can be replaced without disassembly of the disc and shaft. Offset shaft and eccentric disc No seat/disc contact in the open or intermediate position. Eliminates wear points at top and bottom of disc.

2 N E L E S C O N T R O L S ASSEMBLY DRAWING , PARTS LIST Part No. Part Name L6CM_PACA L6DM_PACA WCB Carbon steel body 316 Stainless steel disc L6CM_AACA L6DM_AACA 316 Stainless steel body and disc 1 Body Carbon Steel ASTM A216 WCB 316 Stainless Steel ASTM A351 CF8M 2 Insert AISI 410 AISI 316 L 3 Disc 316 stainless steel ASTM A351 type CF8M 4 Seat ring Incoloy 825 hard chrome plated DN / 4"-28" Avesta 248 SV hard chrome plated DN / 30"-60" 9 Gland 316 stainless steel ASTM A351 type CF8M 10 Blind flange 316 stainless steel ASTM A351 type CF8M 11 Drive shaft 17-4PH stainless steel hard chrome plated 12 Shaft 17-4PH stainless steel hard chrome plated 13 Key 329 stainless steel 14 Cylindrical pin 17-4PH stainless steel 15 Bearing Nitronic Thrust bearing Cobalt based alloy 17 Anti extrusion ring Stainless steel 18 Gasket Graphite 19 Body seal Graphite 20 Gland packing PTFE or graphite 24 Stud Stainless steel 25 Nut Stainless steel 26 Cap screw Stainless steel 27 Socket screw Stainless steel 29 Indentification plate 304 stainless steel 30 Spring washer Stainless steel 42 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 contact 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 F L A N G E D M E T A L - S E A T E D N E L D I S C B T T E R F L Y V A L V E S, S E R I E S L 6 Valve body ratings L6 Neldisc valves are fully rated for bidirectional service at pressure and temperatures in accordance with ANSI B16.34 and BS Carbon steel (WCB) not recommended for prolonged usage over 427 C / 800 F. For higher temperatures consult factory. Seat materials Incoloy 825 with hard chrome plating up to 500 C / 930 F and Avesta 248SV up to 400 C / 750 F, with hard chrome plating are available as standard seat materials (see How to Order ). Nimonic 80A is used for temperatures above 500 C / 930 F. These materials cover a broad range of applications. Other materials are also available. Please consult factory for assistance. Shutoff performance Neldisc valves are available with shutoff capability to ISO 5208 rate 1 or FCI 70-2Class V in both directions as standard, and Class VI and API 598 in the preferred shutoff direction (shaft on high pressure differential side) with the extra tight seating option. Constructions Standard (Coding ) up to 400 C / 752 F Cryogenic High temperature NACE Flow data The table below provides flow coefficients of L6 Neldisc Butterfly valves. The Cv values represent the flow of water at 16 C / +60 F through the valve in gallons per minute at a pressure drop of 1 psi. TECHNICAL SPECIFICATIONS Control stability S-DISC Valve size DN / inches Cv Valve size Cv Class 150 Class 300 DN / inches Class 150 Class / / / / / / / / / / / / / / / / / Conventional concentric type valve flow treatment. S-DISC flow treatment. Valve size DN / inches Cv Valve size Cv Class 150 Class 300 DN / inches Class 150 Class / / / / / / / / / / / / / / / / / S-DISC-design offers stable flow control, reduced dynamic torque, noise level and vibrations. High temperature Service temperatures above 400 C / 752 F require high temperature construction. Cobalt based alloy bearings, and hard surfaced shafts are used. Temp Bearings Shaft seal Shaft Seat Tightness 400 to 700 C / 750 to 1300 F 700 to 800 C / 750 to 1470 F Cobalt based alloy Cobalt based alloy Graphite Graphite Nimonic 80A (Celsit Nimonic 80A coated) Nimonic 80A (Celsit Nimonic 80A coated) Avesta is a registered trademark oc Avesta Stainless Inc. Incoloy and Nimonic are registered trademarks of Inco. Nitronic is a registered trademark of Armco Stainless Steel Division. SPECIAL SERVICE up to Class V Class III Fire-tested Fire-tested construction in accordance with API 607 and BS 6755 part 2, is standard. NACE L6 Neldisc valves are available to comply with NACE MR High abrasion design A Cobalt based alloy coated disc edge, and special bearing bushings that cover the valve shaft make this valve suitable for high abrasives and media containing high concentrations of entrained fluids. Cryogenic L6 is an excellent valve for cryogenic applications. Tight sealing over a wide range of cryogenic temperatures is accomplished with a high nickel alloy seat which maintains its spring properties even in cryogenic temperatures

4 N E L E S C O N T R O L S Maximum differential pressure, bar Pressure/tempereature ratings Temperature, F Class 300 stainless steel CF8M Class 150 carbon steel WCB Class 150 stainless steel CF8M Class 300 carbon steel WCB Saturated steam FOR HIGHER TEMPERATRES CONSLT FACTORY Temperature, C WCB carbon steel material not recommended for prolonged use above 427 C / 800 F Maximum differential pressure, psi ACTATOR SELECTION The tables below provide the proper actuator selections for L6 Neldisc butterfly valves in both standard and high temperature construction. Available operators include Series B1J spring return pneumatic actuators for either fail close (B1J) or fail open (B1JA) operation, B1C double acting pneumatic actuators, and M-series manual gear operators. All pneumatic actuators are sized to operate throughout the full differential pressure rating of the valve based on 4.2 bar / 60 psi minimum air supply for spring return operators and 4.2 bar / 60 psi or 5.5 bar / 80 psi minimum air supply for double acting actuators. NB: For cryogenic applications consult factory. VALVE SIZE DN / Inch L6CM CLASS 150 *) p / / / / / / / / / / / / / / / / / / / / 25 max shut-off B1C CONTROL 5.5 / 80 B1J / B1JA CONTROL B1C ON - OFF 5.5 / 80 B1J ON / OFF B1JA ON / OFF M-SERIES 10 / 145 B1C 6 B1C 6 B1JA/B1JA 8 6 B1C 6 B1J 8 B1JA 8 M07 20 / 290 B1C 6 B1C 6 B1JA/B1JA 8 B1C 6 B1C 6 B1J 8 B1JA 8 M07 10 / 145 B1C 9 B1C 6 B1JA/B1JA 10 B1C 6 B1C 6 B1J 8 B1JA 8 M07 20 / 290 B1C 11 B1C 9 B1JA/B1JA 10 B1C 9 B1C 6 B1J 8 B1JA 8 M07 10 / 145 B1C 9 B1C 9 B1JA/B1JA 10 B1C 9 B1C 9 B1J 10 B1JA 10 M07 20 / 290 B1C 11 B1C 9 B1JA/B1JA 10 B1C 9 B1C 9 B1J 10 B1JA 10 M07 10 / 145 B1C 11 B1C 11 B1JA/B1JA 12 B1C 11 B1C 9 B1J 10 B1JA 10 M07 20 / 290 B1C 11 B1C 11 B1JA/B1JA 12 B1C 11 B1C 11 B1J 10 B1JA 10 M07 10 / 145 B1C 13 B1C 13 B1JA/B1JA 16 B1C 13 B1C 11 B1J 12 B1JA 12 M10 20 / 290 B1C 13 B1C 13 B1JA/B1JA 16 B1C 13 B1C 13 B1J 12 B1JA 12 M10 10 / 145 B1C 17 B1C 13 B1JA/B1JA 16 B1C 13 B1C 13 B1J 16 B1JA 16 M12 20 / 290 B1C 17 B1C 17 B1JA/B1JA 20 B1C 17 B1C 13 B1J 16 B1JA 16 M12 10 / 145 B1C 17 B1C 17 B1JA/B1JA 20 B1C 17 B1C 17 B1J 20 B1JA 20 M14 20 / 290 B1C 20 B1C 20 B1JA/B1JA 25 B1C 20 B1C 17 B1J 20 B1JA 20 M14 10 / 145 B1C 20 B1C 17 B1JA/B1JA 25 B1C 20 B1C 17 B1J 20 B1JA 20 M14 20 / 290 B1C 25 B1C 25 B1JA/B1JA 25 B1C 25 B1C 20 B1J 20 B1JA 20 M14 10 / 145 B1C 25 B1C 25 B1JA/B1JA 25 B1C 25 B1C 20 B1J 25 B1JA 25 M14 20 / 290 B1C 32 B1C 32 B1JA/B1JA 32 B1C 25 B1C 25 B1J 25 B1JA 25 M15 10 / 145 B1C 32 B1C 25 B1JA/B1JA 25 B1C 25 B1C 25 B1J 25 B1JA 25 M15 20 / 290 B1C 32 B1C 32 B1JA/B1JA 32 B1C 32 B1C 25 B1J 25 B1JA 25 M16 10 / 145 B1C 32 B1C 32 B1JA/B1JA 32 B1C 25 B1C 25 B1J 25 B1JA 25 M / / / 290 B1C 40 B1C 32 B1JA/B1JA 32 B1C 32 B1C 32 B1J 25 B1JA 25 M16 *) p 70 is max differential pressure across a 70 open valve, allowed by its mechanical strength.

5 F L A N G E D M E T A L - S E A T E D N E L D I S C B T T E R F L Y V A L V E S, S E R I E S L 6 VALVE SIZE DN / inch L6DM CLASS 300 *) p / / / / / / / / / / / / / / / / / / / / / / 104 max shut-off B1C CONTROL 5.5 / 80 B1J / B1JA CONTROL B1C ON - OFF 5.5 / 80 B1J ON - OFF B1JA ON - OFF M-SERIES 20 / 290 B1C 9 B1C 6 B1J/B1JA 8 B1C 6 B1C 6 B1J 8 B1JA 8 M07 35 / 500 B1C 9 B1C 9 B1J/B1JA 8 B1C 6 B1C 6 B1J 8 B1JA 8 M07 50 / 725 B1C 9 B1C 9 B1J/B1JA 8 B1C 9 B1C 6 B1J 8 B1JA 8 M07 20 / 290 B1C 11 B1C 9 B1J/B1JA 10 B1C 9 B1C 6 B1J 8 B1JA 8 M07 35 / 500 B1C 11 B1C 9 B1J/B1JA 10 B1C 9 B1C 9 B1J 10 B1JA 8 M07 50 / 725 B1C 11 B1C 11 B1J/B1JA 10 B1C 11 B1C 9 B1J 10 B1JA 8 M07 20 / 290 B1C 11 B1C 9 B1J/B1JA 10 B1C 9 B1C 9 B1J 10 B1JA 10 M07 35 / 500 B1C 13 B1C 11 B1J/B1JA 10 B1C 11 B1C 11 B1J 10 B1JA 10 M07 50 / 725 B1C 13 B1C 11 B1J/B1JA 12 B1C 11 B1C 11 B1J 10 B1JA 10 M07 20 / 290 B1C 13 B1C 11 B1J/B1JA 12 B1C 11 B1C 11 B1J 12 B1JA 12 M10 35 / 500 B1C 13 B1C 13 B1J/B1JA 12 B1C 13 B1C 11 B1J 12 B1JA 12 M10 50 / 725 B1C 17 B1C 13 B1J/B1JA 16 B1C 13 B1C 13 B1J 12 B1JA 12 M10 20 / 290 B1C 17 B1C 13 B1J/B1JA 16 B1C 13 B1C 13 B1J 16 B1JA 16 M14 35 / 500 B1C 17 B1C 17 B1J/B1JA 20 B1C 17 B1C 13 B1J 16 B1JA 16 M14 50 / 725 B1C 25 B1C 20 B1J/B1JA 20 B1C 17 B1C 17 B1J 16 B1JA 16 M14 20 / 290 B1C 20 B1C 17 B1J/B1JA 20 B1C 17 B1C 17 B1J 20 B1JA 20 M14 35 / 500 B1C 25 B1C 25 B1J/B1JA 25 B1C 20 B1C 17 B1J 20 B1JA 20 M14 50 / 725 B1C 32 B1C 25 B1J/B1JA 25 B1C 25 B1C 20 B1J 20 B1JA 20 M14 20 / 290 B1C 25 B1C 25 B1J/B1JA 25 B1C 20 B1C 17 B1J 20 B1JA 20 M15 35 / 500 B1C 32 B1C 25 B1J/B1JA 25 B1C 25 B1C 25 B1J 20 B1JA 20 M15 50 / 725 B1C 32 B1C 32 B1J/B1JA 32 B1C 32 B1C 25 B1J 25 B1JA 25 M15 20 / 290 B1C 25 B1C 25 B1J/B1JA 25 B1C 25 B1C 25 B1J 25 B1JA 25 M15 35 / 500 B1C 32 B1C 32 B1J/B1JA 32 B1C 32 B1C 25 B1J 25 B1JA 25 M15 50 / 725 B1C 40 B1C 32 B1J/B1JA 32 B1C 32 B1C 32 B1J 32 B1JA 32 M15 20 / 290 B1C 32 B1C 32 B1J/B1JA 32 B1C 32 B1C 25 B1J 25 B1JA 25 M16 35 / 500 B1C 40 B1C 40 B1J/B1JA 32 B1C 32 B1C 32 B1J 25 B1JA 32 M16 50 / 725 B1C 40 B1C 40 B1J/B1JA 322 B1C 40 B1C 32 B1J 32 B1JA 32 M16 20 / 290 B1C 40 B1C 32 B1J/B1JA 32 B1C 32 B1C 32 B1J 32 B1JA 32 M16 35 / 500 B1C 40 B1C 40 B1J/B1JA 322 B1C 40 B1C 32 B1J 32 B1JA 32 M16 50 / 725 B1C 50 B1C 50 B1J/B1JA 322 B1C 40 B1C 40 B1J 32 B1JA 322 M16 20 / 290 B1C 40 B1C 40 B1J/B1JA 322 B1C 32 B1C 32 B1J 32 B1JA 32 T / 500 B1C 50 B1C 50 B1J/B1JA 322 B1C 40 B1C 40 B1J 32 B1JA 322 T / 725 B1C 50 B1C 50 B1C 50 B1C 40 B1J 322 B1JA 322 T425 *) p 70 is max differential pressure across a 70 open valve, allowed by its mechanical strength

6 N E L E S C O N T R O L S DIMENSIONS P ANSI CLASS 150, L6CM ANSI CLASS 300, L6DM N DN A1 A Ø O M n x Ø d Ø F W S T R Ø B E K C ANSI CLASS 150, L6CM DN Dimensions in mm A A1 øb C E øf K M N øo P R S T n x ød x /8 8 x 5/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 7/ x /8 8 x 7/ x /4 8 x x /4 8 x x x 1-1/ x x 1-1/ x /8 8 x 1-1/4 490 NC W NC kg SIZE Dimensions in inch A A1 øb C E øf K M N øo P R S T n x ød x /8 8 x 5/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 7/ x /8 8 x 7/ x /4 8 x x /4 8 x x x 1-1/ x x 1-1/ x /8 8 x 1-1/ NC W NC lbs - 6 -

7 F L A N G E D M E T A L - S E A T E D N E L D I S C B T T E R F L Y V A L V E S, S E R I E S L 6 ANSI CLASS 300, L6DM DN Dimensions in mm A A1 øb C E øf K M N øo P R S T n x ød x /8 8 x 5/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 7/ x /8 8 x 7/ x /4 8 x x /4 8 x x x 1-1/ x x 1-1/ x /8 8 x 1-1/4 760 NC W NC kg SIZE Dimensions in inch A A1 øb C E øf K M N øo P R S T n x ød x /8 8 x 5/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 3/ x /2 8 x 7/ x /8 8 x 7/ x /4 8 x x /4 8 x x x 1-1/ x x 1-1/ x /8 8 x 1-1/ NC W NC lbs VALVE + MASTERGEAR ø Z ø D F G SHT OPEN OPEN SHT V K J DIMENSIONS IN mm kg F G J V Z M M M M M M DIMENSIONS IN inch lbs F G J V Z M M M M M M

8 N E L E S C O N T R O L S VALVE + PNEMATIC ACTATOR B1C, B1J, B1JA NPT Ø B X G NPT F Max. V K J Dimensions in mm NPT kg X G F V J B1C ,2 B1C ,6 B1C B1C B1C B1C B1C B1C B1C B1C Dimensions in inch NPT lbs X G F V J B1C B1C B1C B1C B1C B1C B1C B1C B1C B1C Dimensions in mm NPT kg X G F V J B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA Dimensions in inch NPT lbs X G F V J B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA B1J, B1JA

9 F L A N G E D M E T A L - S E A T E D N E L D I S C B T T E R F L Y V A L V E S, S E R I E S L 6 HOW TO ORDER To specify an L6 Neldisc butterfly valve, simply determine the proper size, body type, and materials of construction required for the application and make a corresponding selection from each of the tables below. Example: The below example is for an L6 flanged valve (L6), with an ANSI Class 300 body (D), metal seat (M), standard construction (), 10 size (10), with stainless steel body (A), stainless steel disc (A), 17-4PH shaft and pins (C), Incoloy 825 seat with hard chrome plating (A), B1J16 actuator for fail closed operation (B1J16), and an NP7 pneumatic positioner (NP7) L6 C M 16 A A C A F / 01 K B1J16 NP7 1. Sign S-disc construction S- Flow balancing trim on downstream side of the body flow port 2. Sign Product series/design L6 Flanged, short pattern, BS 5155, column 2 L61 Flanged, face-to-face acc. to ISO 5752 series 14 (DIN 3202/F4) 3. Sign Pressure rating, flanges C Body ANSI class 150 (4" - 24"), ASME B16-47 (28" - 60") D Body ANSI class 300 (4" - 24"), ASME B16-47 (28" - 40") A B API 605 class 150 (28" - 60"). Consult factory. API 605 class 300 (28" - 40"). Consult factory. 4. Sign Seat design M N Metal seat, standard Non-tight 5. Sign Construction C H A Standard - metal bearings Nitronic 60 - body and blind flange gaskets graphite - gland packing PTFE - drive shaft with key way - shafts hard chrome plated Cryogenic - gland packing graphite - all other parts as construction - (if not otherwise specified) High temperature - bearing surfaces of shafts stellite - bearing stellite - all soft seals graphite - drive shaft with key way Special, only on request - bearings PTFE + SS body and blind flange gaskets graphite - gland packing PTFE - Drive shaft with key way 6. Sign Size Valves according to ANSI pressure ratings: (in) class , 05, 06, 08, 10, 12, 14, 16, 18, 20, 24, 28, 30, 32, 36, 40, 44, 48, 52, 56, 60 Valves according to ANSI pressure ratings: (in) class , 05, 06, 08, 10, 12, 14, 16, 18, 20, 24, 28, 30, 32, 36, Sign Body A CF8M K W.no L W.no M P HII + Fe52D WCB 7. Sign Body R W.no F LCC N WC6 Y Special 8. Sign Disc A CF8M AISI 316 K W.no L W.no P WCB Y Special 9. Sign Shaft and pins C gr. 630 (17-4PH) J SS 329 (SS 2324) H Nimonic 80A Y Special 10. Sign Seat A Incoloy 825, hard chrome plated B W.no , hard chrome plated (AVESTA 248 SV) H Nimonic 80A, hard chrome plated J AISI 329 (SS 2324) Y Special, to be specified Non-tight without sign 11. Sign Options F Fire-safe, gland packing graphite N Shutoff per ANSI/FCI 70-2 Class VI and API 598 S NACE MR compliance 12. Sign Flange facing Ra µm (std. finish) Other flange facing: see L1 type coding 13. Sign Flange drilling According to valve pressure rating, without sign (standard) Other flange drilling: see L1 type coding 14. Sign Actuator type B1C Pneumatic, double-acting B1J Pneumatic spring-to-close B1JA Pneumatic spring-to-open M Mastergear 15. Sign Positioner type NE7 Electropneumatic NP7 Pneumatic ND8 Digital - 9 -

10 N E L E S C O N T R O L S INTERNATIONAL MANFACTRING AND SALES LOCATIONS Subject to change without prior notice. NITED STATES: Shrewsbury, Massachusetts. MEXICO: Chihuahua. BRAZIL: São José dos Campos. FINLAND: Helsinki. FRANCE: Wittenheim. PEOPLE S REPBLIC 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, nited Arab Emirates, Venezuela, 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, SA Tel. int Fax int Neles Controls PTE. LTD 501 Orchard Road, #05-09 Wheelock Place, Singapore Tel. int Fax int NELES CONTROLS GROP A MEMBER OF RAMA CORPORATION