Triple Offset Valve
Virgo valves are designed and manufactured using the latest engineering softwares and tools like Pro / Engineer for 3D CAD, ANSYS for finite element analysis, Mathcad for engineering calculations & Windchill for project & data management. State-of-the-art manufacturing technologies, modern quality management methods and competent ERP system ensure efficient production process resulting in consistent high quality standard over large About us quantities of valves. In a short period of 25 years, Virgo Group of leakage valve which offers flow control solutions for companies has gained a position of prominence in varied range of applications. TriTork Triple Offset Valve is a next generation highend, quarter turn, metal to metal sealing, zero the field of process ball valves, pipeline ball valves and automation systems for a host of applications in chemical, petrochemical, oil & gas, fertilizer and pharmaceutical industries. During this period, Virgo established its presence in India, United States of America, Middle East, Far East and Europe. Today, Virgo is a true multinational company with manufacturing plants in India, Italy, Germany and USA, sales offices in seven countries and customers in over seventy countries. 2 Products are developed using Finite Element Analysis
TriTork Triple Offset Valve Product Information : Valve Series Design Features Range Options Applications Triple Offset Principle Valve Series Range Double flanged (Short Pattern) - TTF 3" to 56" and larger sizes Double flanged (Long Pattern) - TTG Pressure rating ASME class : 150 / 300 / 600 / 900 Lug - TTL Temperature range : -196 C to +815 C Design Features ZERO leakage Metal to metal sealing Low operating torque Inherently fire safe One piece shaft with blow-out proof design Adjustable shaft seal for low emission Bearing seals NACE compliance Shaft axis 2 Options Live loaded shaft seal Extended bonnet for low temperature and Cryogenic applications High temperature configuration Steam jacketing Triple Offset Principle Triple offset valve is a product of engineered geometry combined with modern manufacturing techniques to achieve ZERO leakage. The metal-to-metal, sealing valve has non-rubbing design which gives less operating torque and longer service life. Offset 1 First offset is between shaft plane and seat plane, which allows complete sealing contact around the seat. 1 Offset 2 Second offset is a distance by which shaft is displaced from normal to the flow line axis, thereby giving camming effect & reduced rubbing rotation while operating the valve. Offset 3 The seal is a segment taken from cone where apex of the cone is offset (3rd) from the flow line axis, which eliminates rubbing completely. 3 Cone axis 3
Product Information : Major Applications Reference Standards Seat Leakage Comparison Major Applications Refinery Fuel oil storage isolation Steam supply stop and control Sulphur Condenser switch Flare gas control and isolation Dirty hot cracking gas stop and control FCC stop and control Tank farms & Storage Terminals Petrochemicals Propane Gas Propylene Plants Flare Inlet & Manifold Isolation Coker Plants Steam Service Ethylene Plants Power Plant Pump isolation Condenser cooling Heat exchanger, suppression system Condensate cooling water isolation Steam turbine generation stop and control Others Hot Gas & Sour Gas (NACE) Gas to Liquid Abrasive Services Process Fluids Hydrocarbons Liquefied Natural Gas Utilities Water Pipelines District Storage and Distribution High rise buildings, hotels & hospitals Reference Standards Design and Manufacturing API 609, ASME B16.34 Face to Face / End to End API 609, ASME B16.10, ISO 5752 Series 13, ISO 5752 Series 14 End Connection ASME B16.5 for flanged end upto 24 /ASME B16.47 for larger sizes Testing API 598 Ninth Edition Fire Test API 607 Fifth Edition, June 2005 / ISO 10497-5:2004, API 6FA Fugitive Emission Testing MESC 77/312, ISO15848 Material Conformance NACE MR 01-75 Seat Leakage Comparison Hydro Seat Testing (Drops per minute) Gas Seat Testing (Bubbles per minute) Valve Size TriTork Metal Seated TriTork Metal Seated Valve (Gate & Ball) Valve (Gate &Ball) < 2" 0 0 0 0 2 1/2" - 6" 0 12 0 24 8" - 12" 0 20 0 40 > 14" 0 2 / NPS 0 4 / NPS Notes: 1. Gas test is carried out using air 2. For metal seated valves, allowable leakage rate values are taken from API 598 (Ninth Edition) 3. As per API 598, Zero drops means no visible leakage per minimum specified test duration for liquid test and Zero bubbles means less than one bubble per minimum specified test duration for gas test 4
TriTork Triple Offset Valve 17 Exploded View : Diagram Parts List 15 14 13 9 12 19 11 21 10 20 9 23 7 6 4 3 5 2 8 1 22 24 No. Description Carbon Steel Stainless Steel 1 BODY ASTM A216 Gr. WCB* ASTM A351 Gr. CF8M* 1a SEAT (INTEGRAL WITH BODY) STELLITED STELLITED 2 DISC ASTM A216 Gr. WCB (with ENP) ASTM A351 Gr. CF8M # # 3 SEAL RING** DUPLEX+GRAPHITE DUPLEX+GRAPHITE 4 RETAINER RING ASTM A516 (with ENP) ASTM A240 TYPE 304 5 DISC GASKET** SPIRAL WOUND SS316+GRAPHITE SPIRAL WOUND SS316+GRAPHITE 6 RETAINER SCREWS ASTM A193 Gr. B8M ASTM A193 Gr. B8M 7 SHAFT ASTM A479 TYPE 410 / ASTM A182 F6a ASTM A564 TYPE 630/ASTM A276 Gr. XM 19 8 DISC PIN ASTM A479 TYPE 410 ASTM A564 TYPE 630/ASTM A276 Gr. XM 19 9 BEARING ASTM A479 TYPE 316 (NITRIDED) ASTM A479 TYPE 316 (NITRIDED) 10 SPACER ASTM A479 TYPE 316 ASTM A479 TYPE 316 11 GLAND PACKING** GRAPHITE GRAPHITE 12 GLAND ASTM A479 TYPE 316 ASTM A479 TYPE 316 13 GLAND PLATE CARBON STEEL STAINLESS STEEL 14 STUD ASTM A193 Gr. B7M ASTM A193 Gr. B8M 15 NUT ASTM A194 Gr. 2HM ASTM A194 Gr. 8M 16 SHAFT KEY (Not Shown) EN8 SS410 17 BRACKET CARBON STEEL STAINLESS STEEL 18 HEXBOLT ASTM A193 Gr. B7M ASTM A193 Gr. B8M 19 THRUST WASHER ASTM A479 TYPE 316 (NITRIDED) ASTM A479 TYPE 316 (NITRIDED) 20 STOP WASHER ASTM A479 TYPE 316 (NITRIDED) ASTM A479 TYPE 316 (NITRIDED) 21 ADJUSTABLE SCREW ASTM A193 Gr. B8M ASTM A193 Gr. B8M 22 BOTTOM FLANGE CARBON STEEL STAINLESS STEEL 23 BOTTOM FLANGE GASKET** SPIRAL WOUND SS316+GRAPHITE SPIRAL WOUND SS316+GRAPHITE 24 BOTTOM FLANGE SCREWS ASTM A193 Gr. B7M ASTM A193 Gr. B8M Note: Material conforms to the requirement of NACE MR 01-75 #Solid metal seal ring can be made available on request *Other materials of construction such as Super Austenitic SS, Inconel, Duplex SS, Super Duplex SS, etc. can be made available on request **Available as spares 5
TriTork Triple Offset Valve Design Features : Low Emission Shaft Seal Metal to Metal 'ZERO' Leakage Externally Retained Blow-Out Proof Design Design Features : Standard Mounting External Indicator for Disc Position Bearing Protection One-Piece Shaft Low Emission Shaft Seal Adjustable shaft packing with multiple graphite rings sandwiched between two anti-extrusion rings control fugitive emission and gives longer packing life. Gland packing with live loading is available as an option. Standard Mounting Bracket top side drilling and shaft connection as per ISO 5211. Metal to Metal 'ZERO' leakage Laminated resilient seal ring flexes to give uniform wedging effect and ensures 'ZERO' leakage. Resiliency of seal ring allows small deformation in body for temperature fluctuations without risk of jamming. Seal ring is retained by retainer ring and bolting. Gasket behind seal ring ensures leak proof joint. External Indicator for Disc Position Disc position is accomplished by dimple on shaft. When the dimple is inline with flow axis, disc is open. Integral Stellited Seat Body Duplex SS Laminated Seal Ring Disc Gasket Retainer Ring Disc Bearing Protection Graphite ring encased in bearing ensures protection against ingress of line media in to the bearing surface and thus avoids jamming of shaft. Externally Retained Blow-Out Proof Design Engineered gland design gives shaft blow out proof protection externally, conforming to the requirements of API 609. In addition, two screws provided at the bottom retain the shaft against blowout. One-Piece Shaft One-piece shaft is guided by long bearings, which are placed nearer to disc for close support. Bearings are super finished and nitrided for trouble free life. All portion of the shaft within the pressure boundary exceed in strength compare to the shaft portion outside the pressure boundary by minimum 10%. 6 7
Dimensional Details LUG (TTL) A B C D ANSI CLASS 150 3" 140 234 53 48 21 4" 145 242 43 54 28 6" 175 281 49 57 39 8" 245 368 70 64 58 10" 275 408 73 71 76 12" 295 427 77 81 126 14" 305 548 78 92 160 16" 375 594 70 102 208 18" 400 639 100 114 251 20" 430 680 88 127 331 24" 470 725 97 154 463 26" 545 710 120 210 785 28" 590 805 140 229 902 30" 655 870 155 230 1011 34" 670 910 155 241 1456 36" 746 975 175 241 1786 40" 804 1065 185 300 2067 42" 900 1125 185 313 2328 48" 951 1230 200 350 3108 56" 1090 1410 245 390 4310 ANSI CLASS 300 3" 140 234 43 48 26 4" 145 242 58 54 33 6" 220 344 71 59 61 8" 245 379 70 73 91 10" 275 408 55 83 131 12" 295 491 120 92 180 14" 350 577 84 117 264 16" 375 625 110 133 393 18" 415 665 120 149 551 20" 460 743 125 159 594 24" 510 783 140 181 928 26" 700 885 150 210 1547 28" 665 900 170 229 1612 30" 700 935 180 230 1746 34" 750 985 180 241 1972 36" 786 1075 200 241 2052 40" 800 1130 225 300 2167 42" 845 1190 225 313 2208 48" 980 1325 275 350 3397 ANSI CLASS 600 4" 206 313 75 64 63 6" 246 353 75 78 107 8" 302 405 100 102 187 10" 357 530 100 117 267 12" 382 555 130 140 375 14" 405 578 120 155 495 16" 445 653 130 178 685 18" 475 683 140 200 722 20" 514 718 175 216 980 24" 576 780 175 232 1336 Notes All dimensions are in mm Face to face dimensions upto 24" are as per API 609 and 26" & above are as per ISO 5752 Series 16 Above dimensions are for reference only Size not mentioned can be provided on request 8
TriTork Triple Offset Valve Dimensional Details Double Flanged (TTF, TTG) D A B C ANSI CLASS 150 TTF TTG TTF 3" 140 234 53 114 203 29 4" 145 242 43 127 229 38 6" 175 281 49 140 267 55 8" 245 368 70 152 292 82 10" 275 408 73 165 330 109 12" 295 427 77 178 356 169 14" 305 548 78 190 381 208 16" 375 594 70 216 406 245 18" 400 639 100 222 432 285 20" 430 680 88 229 457 363 24" 470 725 97 267 508 506 26" 545 710 120 292 834 28" 590 805 140 292 950 30" 655 870 155 318 1080 34" 670 910 155 326 1500 36" 746 975 175 330 1830 40" 804 1065 185 410 2130 42" 900 1125 185 410 2394 48" 951 1230 200 470 3180 56" 1090 1410 245 530 4546 ANSI CLASS 300 TTF TTG TTF 3" 140 234 43 114 282 35 4" 145 242 58 127 305 48 6" 220 344 71 140 403 87 8" 245 379 70 152 418 118 10" 275 408 55 165 457 145 12" 295 491 120 178 502 222 14" 350 577 84 190 762 344 16" 375 625 110 216 838 435 18" 415 665 120 222 914 588 20" 460 743 125 229 991 674 24" 510 783 140 267 1143 979 26" 700 885 150 292-1600 28" 665 900 170 292-1680 30" 700 935 180 318-1800 34" 750 985 180 326-2002 36" 786 1075 200 330-2115 40" 800 1130 225 410-2220 42" 845 1190 225 410-2265 48" 980 1325 275 470-3450 ANSI CLASS 600 TTF TTG TTF 4" 206 313 75 190 432 82 6" 246 353 75 210 559 143 8" 302 405 100 230 660 245 10" 357 530 100 250 787 345 12" 382 555 130 270 838 501 14" 405 578 120 290 889 594 16" 445 653 130 310 991 745 18" 475 683 140 330 1092 910 20" 514 718 175 350 1194 1282 24" 576 780 175 390 1397 1730 Notes All dimensions are in mm Class 150 & 300: Face to face dimensions for Double Flanged - short pattern (TTF) are as per ISO 5752 Basic Series 13 Class 600: Face to face dimensions for Double Flanged - short pattern (TTF) are as per ISO 5752 Basic Series 14 Face to face dimensions for Double Flanged - long pattern (TTG) are as per ASME B16.10 Gate Valves Above dimensions are for reference only Size not mentioned can be provided on request 9
Technical Details : Shaft Side Torque Values Pressure-Temperature Rating Typical Flow Characteristics Shaft Side Torque Values Size ANSI # 150 P 20 bar ANSI # 300 P 50 bar ANSI # 600 P 100 bar (NPS) Opening Closing Running Opening Closing Running Opening Closing Running Nm in-lbs Nm in-lbs Nm in-lbs Nm in-lbs Nm in-lbs Nm in-lbs Nm in-lbs Nm in-lbs Nm in-lbs 3" 75 662 68 606 41 363 130 1152 115 1018 62 549 -- -- -- 4" 112 994 108 955 46 407 201 1779 194 1717 74 655 592 5240 406 3593 164 1452 6" 197 1741 181 1601 49 434 448 3965 335 2965 145 1283 1444 12780 589 5213 311 2753 8" 359 3178 245 2168 90 797 879 7780 511 4522 279 2469 2521 22313 1456 12887 526 4655 10" 642 5685 468 4142 146 1292 1492 13205 909 8045 352 3115 4375 38722 2153 19056 643 5691 12" 969 8580 638 5646 184 1629 2159 19109 1278 11311 451 3992 6389 56547 2946 26074 915 8098 14" 1284 11368 772 6832 246 2177 2701 23906 1550 13718 551 4877 7611 67363 3614 31987 1123 9939 16" 1797 15902 1050 9293 291 2576 4633 41006 1945 17214 782 6921 11256 99624 4156 36784 1444 12780 18" 2360 20891 1208 10692 366 3239 5273 46670 2466 21825 906 8019 20508 181511 6536 57849 3858 34146 20" 2859 25300 1430 12656 397 3514 6856 60681 2637 23339 1198 10603 26345 233173 8870 78506 4973 44015 24" 4583 40565 2450 21684 520 4602 10654 94296 4402 38961 1456 12887 35603 315113 9558 84595 8010 70895 26" 11753 104022 4198 37152 2350 20797 35522 314366 16259 143895 7104 125747 28" 15710 139033 7024 62162 3142 27806 52242 462343 24207 214235 10448 184937 30" 18975 167928 8911 78862 3794 33576 57785 511401 34188 302566 11557 204560 34" 21812 193036 9437 83517 4362 38603 70159 620907 38807 343444 14031 248363 36" 29460 260721 13476 119262 5892 52044 91230 807382 54099 478775 18246 322953 40" 40540 358779 16961 150104 8108 71755 111064 982915 58128 514434 22212 393166 42" 45514 402798 20664 182876 9102 80552 131625 982915 67318 514434 26325 393166 48" 62466 552824 24986 221126 12087 106969 193309 1710788 94619 837380 38661 684315 56" 87199 771711 35924 317827 17439 154335 Notes Torque values are for laminated duplex + graphite seal ring and stellited seat Torque values are at ambient temperature with media being clear water and without factor of safety Consider factor of safety as 30% on above mentioned torque values Contact factory for disc side torque values Pressure-Temperature Rating (As per ASME B16.34) 1600 Typical Flow Characteristics 120 Pressure (PSI) 1400 1200 1000 800 600 400 200 0 100 200 300 400 500 600 700 800 900 1000 WCB # 150 WCB # 300 WCB # 600 CF8M # 150 CF8M # 300 CF8M # 600 % of Maximum Cv 100 80 60 40 20 0 0 20 40 60 80 100 0 Temperature ( F) % of Disc Opening 10
TriTork Triple Offset Valve Product Selection Code Seat (Integral) Series Ends Size Rating Body Disc Seal Ring Shaft Operator Special TTF TTG TTL TTW RF RS FF FS RT 03 04 06 08 10 12 14 16 18 20 24 26 28 30 34 36 40 42 48 56 1 3 6 9 41 42 43 44 45 46 47 30 31 D9 DU IN ZZ 41 42 43 44 45 46 47 30 31 D9 DU IN ZZ H Z TN 89 D1 64 ZZ TV A3 67 ZZ B E G H P EH C E F J Z Series TTF TTG TTL TTW Ends RF RS FF FS RT Size 03 3" 04 4" 06 6" 08 8" 10 10" 12 12" 14 14" 16 16" 18 18" 20 20" 24 24" Double Flanged (Short Pattern) Double Flanged (Long Pattern) Lug (End connection as per B16.5 Tapped Holes) Lug (End connection as per B16.5 Thru Holes) Raised Face Serrated Raised Face Smooth Flat Face Serrated Flat Face Smooth Ring Type Joint 26 28 30 34 36 40 42 48 26" 28" 30" 34" 36" 40" 42" 48" 56 56" Body & Disc 41 42 43 44 45 46 47 30 31 D9 DU IN ZZ WCB LCB CF8 WCC CF8M CF3M CF3 WC6 WC9 LCC Duplex Inconel Others Seat (Integral) H Z Hard Faced (Stellited) Others Seal Ring TN Duplex + Graphite 89 SS 316 + Graphite D1 Duplex 64 SS 316 ZZ Others Shaft TV SS 410 A3 17-4 PH 67 SS 420 ZZ Others Operator B E G H P EH Special C E F J Z Bare Shaft Electrical Actuator Gear Operator Hydraulic Actuator Pneumatic Actuator Electro - Hydraulic Actuator Cryogenic Extended Shaft Finned Bonnet Jacketed No Special Requirement Rating 1 3 6 9 #150 #300 #600 #900 Example TTF RF 08 1 41 41 H TN TV G Z This code stands for double flanged (short pattern), raised face serrated, 8"#150, body & disc WCB, seat hard faced (stellited), seal laminated duplex + graphite, shaft SS 410, gear operated without special requirements Butt Weld End Valves can be provided on request. 11
Virgo Engineers Group Europe Virgo Europe Spa VIA Sicilia, 96 20020, Magnago Milan, Italy Phone: +39 0331 308211 Fax: +39 0331 306299 Division Middle East and Africa Virgo Valves & Controls (ME) FZE Unit - R/A08-YA03/04, Jebel Ali Free Zone, P.O. Box : 18748, Dubai - UAE Phone: +971-4-887 6697 Fax: +971-4-887 6698 Indian Sub-continent Virgo Engineers Limited 277, Hinjewadi Phase II, Maan (Mulshi), Pune - 411 057, India Phone: +91 20 6674 4000 Fax: +91 20 66744021 North and South America Virgo Engineers Inc. 10225 Mula Road, Suite 130 Stafford, TX 77477, USA Phone: +1 281 933 3100 Fax: +1 281 933 3110 Far East Asia Virgo Valves & Controls Limited Suite 1904, 19th Floor, Kenanga International, Jalan Sultan Ismail, 50250 Kuala Lumpur, Malaysia. Phone: +60 3 2161 8260 Fax: +60 3 2166 6489 Indian Sub-continent Virgo Engineers Limited J-525/160 MIDC, Bhosari, Pune - 411 026, India Phone: +91 20 6612 1900 Fax: +91 20 6611 7811 China Virgo Engineers Limited Room No. C 38, 11th Floor, Shanghai Mart, 2299, Yan An Road (W), Shanghai, China 200336. Phone: +86 21 6207 6626 Fax: +86 21 6207 6626 South Korea Virgo Valves & Controls Korea Ltd, 1556, 15th Floor Sam-Chang Plaza Bldg. 173,Dohwa-dong, Mapo-gu, Seoul South Korea Mobile: +82 10905 69327 Fax: +1 281 933 3110 Contact us: sales@tritork.com www.tritork.com www.virgoengineers.com Technical specifications are subject to change TOV: 2011/12 R6