A Long Experience in Energy Equipment and one Goal: The Customer s Satisfaction. LTG3 Globe Control Valves Standard Trim Doc. num. G03STT rev.1
TABLE OF CONTENTS LTG3 - LTG3 LN - LTG3 DS : GENERAL FEATURES... 3 LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - PART LIST... 5 LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - BASIC MATERIAL CLASSES... 6 LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - TRIM CLASSES... 7 LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - SEAL RING... 10 LTG3 - LTG3 LN - LTG3 DS : SOFT SEAT - PART LIST & BASIC MATERIAL CLASSES... 11 LTG3 - LTG3 LN - LTG3 DS : PACKING - PART LIST & BASIC MATERIAL CLASSES... 12 LTG3 : CV & SIZING FACTORS, linear characteristic for general service...... 13 LTG3 : CV & SIZING FACTORS, equal% characteristic for general service..... 14 LTG3 LN : CV & SIZING FACTORS, linear characteristic for low noise application...... 15 LTG3 LN : CV & SIZING FACTORS, equal% characteristic for low noise application...... 16 LTG3 DS : CV & SIZING FACTORS, linear characteristic for incompressible fluid.... 17 LTG3 DS : CV & SIZING FACTORS, linear characteristic for compressible fluid.... 18 LTG3 - LTG3 LN - LTG3 DS : DIMENSIONS AND MASSES... 19 2
LTG3 - LTG3 LN - LTG3 DS : GENERAL FEATURES - cage guided design according to the following characteristics: LTG3 - single cage with standard drilled cage for general purpose application LTG3 LN - single cage with special drilled cage for low noise application on compressible fluids LTG3 DS - double cage for severe applications on compressible / incompressible fluids - flow direction flow to open as per Valvitalia standard design flow to close as a special design in case of flashing / cavitation, to be designed on request - maintenance : quick change design, seat ring clamped into the body by the cage (with throttling function) Body: - material : see table 3 - body rating and type Valve size All 3/4 to 2 3 to 10 12 to 20 Class 150 according to ANSI Casted body (1) Forged body (2) FF flanged Socket weld (5) Threaded (6) Casted body (1) Forged body (2) FF flanged Casted body (1) Forged body (2) FF flanged Table 1 - Body rating and classes Class 300-600 according to ANSI Casted body (1) Forged body (2) FF flanged RTJ flanged (3) Socket weld (5) Threaded (6) Casted body (1) Forged body (2) FF flanged RTJ flanged (3) Casted body (1) Forged body (2) FF flanged RTJ flanged (3) Class 900-1500 according to ANSI Casted body (1) Forged body (2) RTJ flanged (3) Casted body (1) Forged body (2) RTJ flanged (3) Casted body (2) Forged body (1) RTJ flanged (3) Class 2500 according to ANSI Casted body (2) Forged body (1) RTJ flanged (3) Casted body (2) Forged body (1) RTJ flanged (3) Casted body (2) Forged body (1) RTJ flanged (3) PN 10-16 - 25 40-64 - 100 according to DIN EN 1092-1 Casted body (1) Forged body (2) Type A flanged Type B1 flanged Type B2 flanged Type E flanged Type F flanged NOTES (1) standard solution (2) optional (3) where RTJ flange is foreseen, also the following type of flanges can be available: - SMF, small male face - LMF, large male face - SFFF, small female face - LFF, large female face - STF, small tongue face - LTF, large tongue face - SGF, small grove face - LGF, large groove face (4) Butt weld connection according to ANSI B16.25 (5) Socket weld connection according to ANSI B16.11 / B36.10 (6) Threaded connection according to ANSI B16.11 3
- face to face dimension : according to IEC 60534-3-1 for ANSI 150 600 up to DN16 according to ANSI/ISA 75.16 for ANSI 900 1500 up to DN16 according to DIN 3202-1 for size greater than DN16, see table 16 according to ASME B16.10 long pattern, to be designed on request (in this case a forged body will be foreseen, see table 1) other, to be designed on request (in this case a forged body will be foreseen, see table 1) Bonnet: - material : see table 3 - dimension : standard bonnet, flanged to body for temperature higher than -46 C low temp. extended bonnet for temperature -46 C / -100 C cryogenic bonnet for temperature -101 C / -196 C high temp. Extended bonnet for temperature above +400 C see table 16 Trim: - Type : cage guided with unbalanced plug up to DN40 cage guided, unbalanced or balanced plug as per standard solution from DN50 to DN80 cage guided balanced for port dimension higher than DN80 (unbalanced if imposed by process conditions) - Sealing : Seat sealing : metal to metal or soft seat, see table 6 and Fig.3 for limitations Cage sealing : depending on leakage class required, see table 5 for limitations - material : see tables 3 and 4 - maximum applicable pressure drop : see table 4 - Characteristic : linear or equalpercentage, see tables from 8 to 15 Packing: - Type : see table 7 - material : see tables 3 and 7 - for temperature and pressure capability : see table 7 Leakage Class (according to IEC 60534-4) : - standard : IV and V - optional: VI, see technical bulletin ACTUATOR SELECTION for LTG3 (doc. no.g03acs), seal ring table 5 and table 6 Rangeability: - Cvmax/Cvmin (values from Cv table): better than 50:1 for 1" port and over 4
LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - PART LIST (1) Fig.1 LTG3 standard design, part list Table 2 - Main components part list NOTES (1) see table 5 (2) stem connector design depend on actuator type. Stem connector on the right refers to a stem connector for actuators without handwheel Stem connector on the left refers to a stem connector for actuators with handwheel 5
LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - BASIC MATERIAL CLASSES Table 3 - Basic material classes NOTES (1) All the basic material classes can be manufactured according to NACE requirements Example : BC1 - basic class no.1 BC1N - basic class no.1 according to NACE (2) forged bonnet for 3/4, 1 and 1 1/2 for all ratings (3) on request - standard for offshore application or installation in very corrosive environment (4) TC7 replaces TC1 and TC4 in case of hard trim requirement for valve with port lower than ½ (in this case stellite overlay is not possible) (5) TC8 replaces TC2 and TC5 in case of hard trim requirement for valve with port lower than ½ (in this case stellite overlay is not possible) (6) TC9 replaces TC3 and TC6 in case of hard trim requirement for valve with port lower than ½ (in this case stellite overlay is not possible) 6
LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - TRIM CLASSES Table 4.1 - Trim material classes 7
Table 4.2 - Trim material classes 8
Table 4.3 - Trim material classes NOTES (1) double certified (2) in case of high strength stem requirement for medium temperature (3) in case of high strength stem requirement for high temperature (4) in case of high operative temperatures or high pressure drop (5) TC7 replaces TC1 and TC4 in case of hard trim requirement for valve with port lower than ½ (in this case stellite overlay is not possible) (6) TC8 replaces TC2 and TC5 in case of hard trim requirement for valve with port lower than ½ (in this case stellite overlay is not possible) (7) TC9 replaces TC3 and TC6 in case of hard trim requirement for valve with port lower than ½ (in this case stellite overlay is not possible) (8) TC10H replaces TC3 and TC6 in case of hard trim requirement for valve with port lower than ½ (in this case stellite overlay is not possible) (9)Full stellite Gr.6 in case of NACE requirement (10) maximum pressure drop reducing coefficient for taking into account high temperature services 9
LTG3 - LTG3 LN - LTG3 DS : MAIN COMPONENTS - SEAL RING Pressure energized teflon seal ring Pressure energized teflon based seal ring TFE and resilient inner seal ring Metal seal ring and Inner metal spring Note: to obtain class IV two seal rings are fitted into the plug Metal seal ring and graphite inner seal ring Metallic ring and V-ring Table 5 Seal ring 10
LTG3 - LTG3 LN - LTG3 DS : SOFT SEAT - PART LIST & BASIC MATERIAL CLASSES Fig.3 Pressure / temperature rating Fig.2 Soft seat Table 6 - Soft seat part list & basic material classes NOTES (1) IEC foresees only soft seats to reach class VI (zero leakage). In case of metal to metal seat design, reference is made to DIN 3230. according to this standard and basing on our experience, class VI can be reached with a seat load of 500N/mm. Class VI can be compared with ISO 5208 rate A (no visible leakage) (2) Also soft insert can guarantee class VI if combined with a balanced plug if insert (31) is used 11
LTG3 - LTG3 LN - LTG3 DS : PACKING - PART LIST & BASIC MATERIAL CLASSES Fig.4 - Standard packing design type A Table 7 - Packing material classes NOTES (1) 250 bar is the maximum working pressure in case of live loading design (type C) 400 bar is the maximum working pressure in case of standard and leak-off design (type A and B) (2) For working temperatures lower than -30 C, an extended or cryogenic bonnet shall be foreseen (3) In case of temperature higher than 200 C, if a teflon based packing is required an extended bonnet shall be designed (on request). (4) No practical limit is given. When used on superheated steam the maximum temperature can be assumed +600 C (5) low emission packing according to ISO15848 class B. (6) VLT packing rings do not require lubrication Material class PP Standard for medium temperature and pressure, guarantee the lowest frictions. Suitable for vacuum service since the seal rings are symmetrically shaped Fig.5 - Leak-off packing design type B Material class PL Standard for medium temperature and pressure, in case of gas applications (no steam). Suitable for vacuum service since the seal rings are symmetrically shaped. O-ring addiction improves the low emission characteristics (SEE NOTE 5) Material class PG Standard for high temperature and pressure. Suitable for vacuum service since the seal rings are symmetrically shaped. Fig.6 - Live loading packing design type C 12
LTG3 : CV & SIZING FACTORS, linear characteristic for general service Flow characteristic: Linear Percent of Travel 5% 10% 20% 40% 60% 80% 100% DN 1 Pressure recovey factor FL 0.94 0.94 0.93 0.93 0.92 0.92 0.92 Pressure diff. ratio factor x T (for compressible fluid) 0.74 0.74 0.73 0.73 0.71 0.71 0.71 Valve cavitation index x fz (for incompressible fluid) 0.62 0.617 0.601 0.571 0.559 0.545 0.54 Sigma valve σ v (for incompressible fluid) 1.40 1.41 1.45 1.52 1.56 1.60 1.61 Valve style modifier F d (for compressible fluid) 0.40 0.32 0.23 0.17 0.13 0.11 0.10 Port Seat Diameter Travel Rated CV 5% 10% 20% 40% 60% 80% 100% 3/4 20 25 0.46 1.4 2.8 5.6 8.4 11.2 14 1 30 25 0.65 1.8 3.6 7.2 10.8 14.4 18 1 1/2 1'' 30 35 0.71 2.7 5.4 10.8 16.2 21.6 27 1.1/2'' 40 35 0.78 3.5 7.0 14.0 21 28 35 1'' 30 35 0.71 3.3 6.6 13.2 19.8 26.4 33 2 1.1/2'' 40 35 0.91 4.6 9.2 18.4 27.6 36.8 46 2'' 65 40 2.27 8 16 32 48 64 80 1.1/2'' 40 35 0.91 5.5 11 22 33 44 55 3 2'' 65 40 2.27 10.8 21.6 43.2 64.8 86.4 108 3'' 90 50 3.31 15 31 61 92 123 153 2'' 65 40 2.27 12 25 49 73 98 122 4 3'' 90 50 3.31 19 38 76 114 151 189 4'' 110 60 4.68 25 50 100 150 199 249 3'' 90 50 3.31 21 42 84 127 169 211 6 4'' 110 60 4.68 31 62 125 187 250 312 6'' 130 80 5.85 41 81 162 243 324 405 4'' 110 60 4.68 33 65 131 196 261 326 8 6'' 130 80 5.85 48 95 190 285 380 475 8'' 170 80 9.1 62 124 247 371 494 618 6'' 130 80 5.85 51 101 202 303 404 505 10 8'' 170 80 9.1 69 139 278 416 555 694 10'' 205 100 13.4 100 200 400 601 801 1001 8'' 170 80 9.1 70 141 282 422 563 704 12 10'' 205 100 13.4 99 198 395 593 790 988 12'' 245 100 17.55 141 282 563 845 1126 1330 10'' 205 100 13.4 111 222 444 665 887 1109 14 12'' 245 100 17.55 141 288 582 875 1169 1463 14'' 290 125 25.3 188 375 750 1125 1500 1875 12'' 245 100 19.5 141 303 627 960 1280 1600 16 14'' 290 125 25.3 200 400 800 1201 1601 2001 16'' 335 150 32.9 261 522 1044 1566 2088 2610 14'' 290 125 25.3 209 418 836 1254 1672 2090 18 16'' 335 150 32.9 286 572 1144 1715 2287 2859 18'' 380 175 35.75 315 633 1266 1899 2532 3165 16'' 335 150 32.9 291 582 1164 1745 2327 2909 20 18'' 380 175 35.75 315 637 1282 1929 2572 3215 20'' 440 200 39 428 856 1712 2568 3424 4280 Table 8 - CV & SIZING FACTORS, linear characteristic for general service 13
LTG3 : CV & SIZING FACTORS, linear characteristic for general service Flow characteristic: Equal percentage Percent of Travel 5% 10% 20% 40% 60% 80% 100% DN 1 Pressure recovey factor FL 0.94 0.94 0.93 0.93 0.92 0.92 0.92 Pressure diff. ratio factor x T (for compressible fluid) 0.74 0.74 0.73 0.73 0.71 0.71 0.71 Valve cavitation index x fz (for incompressible fluid) 0.62 0.617 0.601 0.571 0.559 0.545 0.54 Sigma valve σ v (for incompressible fluid) 1.40 1.41 1.45 1.52 1.56 1.60 1.61 Valve style modifier F d (for compressible fluid) 0.40 0.40 0.36 0.33 0.25 0.18 0.11 Port Seat Diameter Travel Rated CV 5% 10% 20% 40% 60% 80% 100% 3/4 20 25 0.48 0.52 0.74 1.8 4.2 7.68 12 1 30 25 0.72 0.77 1.12 2.7 6.3 11.52 18 1 1/2 1'' 30 35 1.1 1.2 1.7 4.1 9.5 17.3 27 1.1/2'' 40 35 1.2 1.3 1.9 4.65 10.85 19.84 31 1'' 30 35 1.2 1.3 1.9 4.65 10.85 19.84 31 2 1.1/2'' 40 35 1.7 1.9 2.7 6.6 15.4 28.16 44 2'' 65 40 3 3.3 4.65 11.25 26.25 48 75 1.1/2'' 40 35 1.9 2.1 3 7.35 17.15 31.36 49 3 2'' 65 40 4 4.3 6.25 15.15 35.35 64.64 101 3'' 90 50 5.4 5.8 8.4 20.3 47.3 86.4 135 2'' 65 40 4.4 4.8 6.9 17 39 71 111 4 3'' 90 50 3.5 4 7.9 24 55 100 157 4'' 110 60 4.4 5 10 30 70 128 200 3'' 90 50 3.6 4.1 8.3 25 58 106 165 6 4'' 110 60 5 5.6 11.3 34 79 144 225 6'' 130 80 7.7 8.8 18 53 123 225 352 4'' 110 60 5 5.6 11.3 34 79 144 225 8 6'' 130 80 8.7 9.8 19.7 59 138 252 393 8'' 170 80 11.2 12.7 26 76 178 326 509 6'' 130 80 8.7 9.8 19.7 59 138 252 393 10 8'' 170 80 12 13.7 27.4 82 192 351 548 10'' 205 100 18.4 21 42 126 293 535 836 8'' 170 80 12 13.7 27.4 82 192 351 548 12 10'' 205 100 18 21 41 124 288 527 12'' 245 100 26 30 59 178 414 758 823 1184 10'' 205 100 19.3 22 43.8 132 307 561 876 14 12'' 245 100 29 33 65 195 456 833 1302 14'' 290 125 34 38 76 229 535 977 1527 12'' 245 100 31 36 71 214 499 911 1424 16 14'' 290 125 35 40 81 242 564 1030 1610 16'' 335 150 49 56 112 337 786 1438 2247 14'' 290 125 64 35 40 81 242 564 1610 18 16'' 335 150 55 63 126 378 881 1611 2517 18'' 380 175 62 70 141 423 986 1803 2817 16'' 335 150 53 61 121 364 848 1551 2424 20 18'' 380 175 63 72 143 429 1001 1831 2861 20'' 440 200 84 95 190 571 1333 2438 3809 Table 9 - CV & SIZING FACTORS, equal% characteristic for general service 14
LTG3 LN : CV & SIZING FACTORS, linear characteristic for low noise application Flow characteristic: Linear Percent of Travel 5% 10% 20% 40% 60% 80% 100% DN 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 Pressure recovey factor FL 0.94 0.94 0.93 0.93 0.92 0.92 0.92 Pressure diff. ratio factor x T 0.76 0.76 0.75 0.75 0.74 0.73 0.73 Valve style modifier F d See table 11 Port Seat Diameter Travel Rated CV 5% 10% 20% 40% 60% 80% 100% 3/4 20 25 0.42 1.1 2.2 4.4 6.6 8.8 11 1 30 25 0.68 1.8 3.6 7.2 10.8 14.4 18 1'' 30 35 0.69 2.7 5.4 10.8 16.2 21.6 27 1.1/2'' 40 35 0.91 3.7 7.4 14.8 22 29.6 37 1'' 30 35 0.69 3.1 6.2 12.4 18.6 24.8 31 1.1/2'' 40 35 0.91 4.5 9 18 27 36 45 2'' 65 40 2.24 8 16 31 47 63 78 1.1/2'' 40 35 0.91 5.2 10.4 21 31 42 52 2'' 65 40 2.24 10.7 21.4 43 64 86 107 3'' 90 50 3.3 15 30 60 91 121 151 2'' 65 40 2.24 12 24 48 72 96 120 3'' 90 50 3.3 18 37 74 110 147 184 4'' 110 60 4.68 24 48 96 143 191 239 3'' 90 50 3.3 21 42 84 127 169 203 4'' 110 60 4.68 29 58 116 175 233 291 6'' 130 80 5.8 40 80 160 241 321 401 4'' 110 60 4.68 30 59 118 178 237 296 6'' 130 80 5.8 47 93 187 280 374 467 8'' 170 80 9.2 53 107 213 320 426 533 6'' 130 80 5.8 49 98 197 295 394 492 8'' 170 80 9.2 69 139 278 416 555 580 10'' 205 100 13.5 89 177 354 532 709 886 8'' 170 80 9.2 69 139 278 416 555 580 10'' 205 100 13.5 88 175 351 526 702 877 12'' 245 100 18.5 108 216 432 649 865 1081 10'' 205 100 13.5 95 189 378 568 757 946 12'' 245 100 18.5 131 262 525 787 1050 1312 14'' 290 125 25.3 156 313 626 938 1251 1564 12'' 245 100 18.5 132 265 530 794 1059 1324 14'' 290 125 25.3 166 332 665 997 1330 1662 16'' 335 150 33 216 433 865 1298 1730 2163 14'' 290 125 25.3 166 332 665 997 1330 1662 16'' 335 150 33 228 456 912 1367 1823 2279 18'' 380 175 41 285 570 1140 1710 2280 2850 16'' 335 150 33 232 463 926 1389 1852 2315 18'' 380 175 41 301 601 1202 1803 2404 3005 20'' 440 200 52 374 749 1498 2246 2995 3744 Table 10 - CV & SIZING FACTORS, linear characteristic for low noise application Percent of Travel 5% 10% 20% 40% 60% 80% 100% Port Fd 3/4 0.59 0.57 0.52 0.43 0.33 0.23 0.14 1 0.43 0.40 0.37 0.30 0.23 0.15 0.08 1.1/2 0.37 0.35 0.32 0.26 0.19 0.12 0.07 2 0.28 0.27 0.24 0.19 0.15 0.10 0.05 3 0.18 0.17 0.16 0.13 0.10 0.07 0.04 4 0.17 0.16 0.15 0.12 0.09 0.06 0.03 6 0.17 0.16 0.15 0.12 0.09 0.06 0.03 8 0.15 0.14 0.13 0.10 0.08 0.05 0.03 10 0.15 0.14 0.13 0.10 0.08 0.05 0.03 12 0.14 0.13 0.12 0.10 0.07 0.05 0.02 14 0.11 0.10 0.09 0.07 0.06 0.04 0.02 16 0.07 0.07 0.07 0.05 0.04 0.03 0.02 18 0.06 0.06 0.06 0.05 0.04 0.03 0.02 20 0.05 0.05 0.05 0.04 0.03 0.02 0.01 Table 11 - Fd factor, linear characteristic 15
LTG3 LN : CV & SIZING FACTORS, equal% characteristic for low noise application Flow characteristic: Equal percentage Percent of Travel 5% 10% 20% 40% 60% 80% 100% DN 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 Pressure recovey factor FL 0.94 0.94 0.93 0.93 0.92 0.92 0.92 Pressure diff. ratio factor x T 0.76 0.76 0.75 0.75 0.74 0.73 0.73 Valve style modifier F d See table 13 Port Seat Diameter Travel Rated CV 5% 10% 20% 40% 60% 80% 100% 3/4 20 25 0.4 0.5 0.6 1.4 3.2 5.9 9.2 1 30 25 0.7 0.8 1.1 2.4 5.7 10.4 16.2 1'' 30 35 0.7 1.2 1.6 3.7 8.5 15.5 24.3 1.1/2'' 40 35 0.9 1.7 2.4 5.4 12.6 23 35.9 1'' 30 35 0.7 1.3 1.7 4 9.2 16.7 26.1 1.1/2'' 40 35 0.9 2 2.7 6.3 15 27 42 2'' 65 40 2.3 2.9 3.9 9 21 38.5 60 1.1/2'' 40 35 0.9 2.2 3 7 16 29 45 2'' 65 40 2.3 3.5 5 11 26 47 73 3'' 90 50 3.3 5 7 16 36 67 104 2'' 65 40 2.3 3.5 5 11 26 47 73 3'' 90 50 3.3 5.5 7.5 17 40 72 113 4'' 110 60 4.7 8 11 25 58 106 166 3'' 90 50 3.3 5.5 7.5 17 40 72 113 4'' 110 60 4.7 9 12 27 62 114 178 6'' 130 80 5.8 15 20 45 105 192 300 4'' 110 60 4.7 9 12 27 62 114 178 6'' 130 80 5.8 15 21 48 112 205 321 8'' 170 80 9.2 16 21 49 114 208 325 6'' 130 80 5.8 15 21 48 112 205 321 8'' 170 80 9.2 16 21 49 114 208 325 10'' 205 100 13.5 26 36 82 192 351 548 8'' 170 80 9.2 16 21 49 114 208 325 10'' 205 100 13.5 26 36 82 192 351 548 12'' 245 100 18.5 29 39 90 211 386 603 10'' 205 100 13.5 26 36 82 192 351 548 12'' 245 100 18.5 29 39 90 211 386 603 14'' 290 125 25.3 45 61 140 326 595 930 12'' 245 100 18.5 29 39 90 211 386 603 14'' 290 125 25.3 45 61 140 326 595 930 16'' 335 150 33 61 83 192 447 818 1278 14'' 290 125 25.3 45 61 140 326 595 930 16'' 335 150 33 61 83 192 447 818 1278 18'' 380 175 41 77 105 241 563 1030 1609 16'' 335 150 33 61 83 192 447 818 1278 18'' 380 175 41 77 105 241 563 1030 1609 20'' 440 200 52 101 137 316 738 1350 2109 Table 12 - CV & SIZING FACTORS, equal% characteristic for low noise application Percent of Travel 5% 10% 20% 40% 60% 80% 100% Port Fd 3/4 0.78 0.76 0.65 0.43 0.28 0.21 0.16 1 0.47 0.45 0.39 0.26 0.17 0.12 0.10 1.1/2 0.37 0.35 0.31 0.20 0.13 0.09 0.08 2 0.29 0.28 0.24 0.16 0.10 0.08 0.06 3 0.24 0.23 0.20 0.13 0.08 0.06 0.05 4 0.19 0.18 0.15 0.10 0.07 0.05 0.04 6 0.19 0.18 0.15 0.10 0.07 0.05 0.04 8 0.19 0.18 0.15 0.10 0.07 0.05 0.04 10 0.18 0.17 0.14 0.09 0.06 0.05 0.04 12 0.17 0.16 0.14 0.09 0.06 0.05 0.03 14 0.14 0.13 0.11 0.07 0.05 0.04 0.03 16 0.12 0.11 0.10 0.06 0.04 0.03 0.02 18 0.11 0.10 0.09 0.06 0.04 0.03 0.02 20 0.10 0.09 0.08 0.05 0.03 0.02 0.02 Table 13 - Fd factor, equal% characteristic 16
LTG3 DS : CV & SIZING FACTORS, linear characteristic for incompressible fluid Flow characteristic: Linear Percent of Travel 5% 10% 20% 40% 60% 80% 100% DN 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 FL 0.96 0.96 0.96 0.96 0.96 0.95 0.95 XFZ 0.73 0,73 0,72 0,72 0,71 0,71 0,70 Sigma valve σ v (for incompressible fluid) 1.19 1.19 1.21 1.21 1.22 1.22 1.24 Port Seat Diameter Travel Rated CV 5% 10% 20% 40% 60% 80% 100% 3/4 20 25 0.41 0.82 1.63 3.3 4.9 6.5 8.2 1 30 25 0.62 1.24 2.49 5.0 7.5 10 12 1'' 30 35 0.98 1.96 3.9 7.9 12 16 20 1.1/2'' 40 35 1.37 2.70 5.5 11 16 22 27 1'' 30 35 1.07 2.14 4.3 8.5 13 17 21 1.1/2'' 40 35 1.56 3.1 6.2 12 19 25 31 2'' 65 40 2.35 4.7 9.4 19 28 38 47 1.1/2'' 40 35 1.70 3.4 6.8 14 20 27 34 2'' 65 40 3.0 6.0 12 24 36 48 60 3'' 90 50 4.4 8.8 18 35 53 71 88 2'' 65 40 3.0 6.0 12 24 36 48 60 3'' 90 50 4.9 10 20 39 59 79 98 4'' 110 60 7.8 16 31 62 93 124 155 3'' 90 50 4.9 10 20 39 56 79 98 4'' 110 60 8.7 17 35 70 104 139 174 6'' 130 80 11 22 43 86 129 172 215 4'' 110 60 8.7 17 35 70 104 139 174 6'' 130 80 11 22 45 89 134 178 223 8'' 170 80 16 32 65 129 194 259 324 6'' 130 80 11 22 45 89 134 178 223 8'' 170 80 17 35 69 138 207 277 346 10'' 205 100 26 51 102 205 307 409 512 8'' 170 80 17 35 69 138 207 277 3464 10'' 205 100 27 53 106 212 319 425 531 12'' 245 100 34 68 137 273 410 546 683 10'' 205 100 28 55 111 221 332 443 553 12'' 245 100 34 68 137 273 410 546 683 14'' 290 125 50 100 200 400 600 800 1000 12'' 245 100 34 68 137 273 410 546 683 14'' 290 125 52 104 208 415 623 830 1038 16'' 335 150 56 111 223 446 669 891 1114 14'' 290 125 52 104 208 415 623 830 1038 16'' 335 150 56 111 223 446 669 891 1114 18'' 380 175 70 140 280 560 841 1121 1401 16'' 335 150 56 111 223 446 669 891 1114 18'' 380 175 70 140 280 560 841 1121 1401 20'' 440 200 74 148 296 593 889 1185 1481 Table 14 - CV & SIZING FACTORS, linear characteristic for incompressible fluid 17
LTG3 DS : CV & SIZING FACTORS, linear characteristic for compressible fluid Flow characteristic: Linear Percent of Travel 5% 10% 20% 40% 60% 80% 100% DN 1 FL 0.96 0.96 0.96 0.96 0.96 0.95 0.95 XT 0.83 0.83 0.83 0.83 0,82 0,81 0.81 Acoustic benefit factor Ab (1) 15.7 15 13.1 10.2 8.1 6.6 5.6 Port Seat Diameter Travel Rated CV 5% 10% 20% 40% 60% 80% 100% 3/4 20 25 0.47 0.93 1.87 3.7 5.6 7.5 9.3 1 30 25 0.6 1.20 2.50 4.9 7.4 10 12 1 1/2 1'' 30 35 1.05 2.10 4.2 8.4 13 17 21 1.1/2'' 40 35 1.29 2.60 5.2 10 16 21 26 1'' 30 35 1.08 2.15 4.3 8.6 13 17 22 2 1.1/2'' 40 35 1.39 2.80 5.6 11 17 22 28 2'' 65 40 2.22 4.4 8.9 18 27 35 44 1.1/2'' 40 35 1.39 2.80 5.6 11 17 22 28 3 2'' 65 40 2.46 4.9 10 20 30 39 49 3'' 90 50 4.1 8.3 17 33 50 66 83 2'' 65 40 2.46 4.9 10 20 30 39 49 4 3'' 90 50 4.3 8.6 17 34 52 69 86 4'' 110 60 6.4 13 25 51 76 102 127 3'' 90 50 4.3 8.6 17 34 52 69 86 6 4'' 110 60 6.4 13 25 51 76 102 127 6'' 130 80 10 20 41 82 123 164 205 4'' 110 60 6.4 13 25 51 76 102 127 8 6'' 130 80 10 20 41 82 123 164 205 8'' 170 80 14 27 55 109 164 219 273 6'' 130 80 10 20 41 82 123 164 205 10 8'' 170 80 14 27 55 109 164 219 273 10'' 205 100 21 42 84 169 253 337 422 8'' 170 80 14 27 55 109 164 219 273 12 10'' 205 100 21 42 84 169 253 337 422 12'' 245 100 26 52 104 208 312 415 519 10'' 205 100 21 42 84 169 253 337 422 14 12'' 245 100 26 52 104 208 312 415 519 14'' 290 125 41 82 165 329 494 658 823 12'' 245 100 26 52 104 208 312 415 519 16 14'' 290 125 41 82 165 329 494 658 823 16'' 335 150 54 108 216 432 648 864 1080 14'' 290 125 41 82 165 329 494 658 823 18 16'' 335 150 54 108 216 432 648 864 1080 18'' 380 175 65 129 258 517 775 1034 1292 16'' 335 150 54 108 216 432 648 864 1080 20 18'' 380 175 65 129 258 517 775 1034 1292 20'' 440 200 92 183 367 733 1100 1466 1833 Table 15 - CV & SIZING FACTORS, linear characteristic for compressible fluid NOTES (1) The acoustic benefit is measured in comparison with a single LN cage, having a linear characteristic Acoustic benefit = Ab-0.14*(p1/p2) Unit of measure for p1 and p2 : Pascal 18
LTG3 - LTG3 LN - LTG3 DS : DIMENSIONS AND MASSES 19
20