Maxifluss Rotary Globe Valves VETEC Type 82.7 ANSI version Application Double-eccentric valve for process engineering and industrial applications Valve size NPS 1 to NPS 10 Pressure rating Class 150 and Class 300 Temperatures 148 to 752 F 100 to 400 C Properties Valve body made of carbon steel or stainless carbon steel Seat with metal seal (hard faced or standard) or with soft seal For use with Type R, M or AT Rotary Actuators The valves can be equipped with different accessories, such as positioners, solenoid valves and other accessories according to VDI/VDE 3846. Standard version VETEC Type 82.7 Valve in flanged version for ambient temperatures from 148 to 752 F ( 100 to 400 C), Class 150 and Class 300 NPS 1 to NPS 10 Face-to-face dimensions according to EN 558-2, Table 16, Series 36 Options TA-Luft packing/double packing Special materials for body and trim Noise-reducing features Flange version with tongue/groove, male face/female face according to EN 1092-1 RF and RTJ according to ANSI Versions for higher and lower temperatures available on request Fig. 1 VETEC Type 82.7 Maxifluss Rotary Globe Valve with Type R Rotary Actuator and Type 3730 Positioner Further versions VETEC Type 82.7 DIN version (refer to T 9915 EN) VETEC Type 72.4 Rotary globe valve DN 25 to DN 300 in sandwich style (refer to T 9912 EN) Fig. 2 VETEC Type 82.7 Maxifluss Rotary Globe Valve with Type AT Rotary Actuator, handwheel and Type 3730 Positioner Associated Information Sheet for rotary valves Pneumatic actuators T 8200 EN T 9940 EN Edition August 2010 Data Sheet T 9915-1 EN
Design and principle of operation The process medium flows through the valve in the direction indicated by the arrow on the body. The flow rate depends on the opening angle of the plug. The shaft bearing is arranged eccentrically. Together with the plug's offset fulcrum, this implements the double-eccentric design of the Maxifluss rotary globe valve. When turning the plug shaft from closed position in opening direction, the double-eccentric design allows the plug to lift off the seat smoothly without initial breakaway torque. The valve is not opened suddenly and shows a stable control response even with small opening angles. The rotary globe valve can be used for both directions of flow. The standard direction of flow for liquids is FTO (medium opens) and FTC (medium closes) for gases and vapors. Using positioners or cam disks, the natural characteristic of the Maxifluss rotary globe valves can be modified to achieve a linear or equal-percentage characteristic. Fail-safe action In combination with the Types R, M or AT Actuators, the valve has two fail-safe actions, which become effective when the valve is relieved of pressure or when the supply air fails: Fail-close (valve CLOSED without supply air) the valve is closed when the supply air fails. Fail-open (valve OPEN without supply air) the valve is opened when the supply air fails. Installation Observe the direction of flow indicated by the arrow on the valve body. Fig. 4 Double-eccentric principle Fig. 5 Direction of flow FTO and FTC 100 90 80 K Kv-Wert V /C V in in % 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Opening Drehwinkel angle in % in % Fig. 6 Natural characteristic 100 90 80 K Kv-Wert V /C V in in % 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 Opening Drehwinkel angle in % in % 90 100 Fig. 7 Equal percentage or linear characteristic Fig. 3 Sectional drawing of Type 82.7 2 T 9915-1 EN
Table 1 Technical data VETEC Type 82.7 Maxifluss Rotary Globe Valve ANSI version Valve size NPS 1 to NPS 10 Pressure rating, flange Class 150 and Class 300 Max. operating pressure Connection 725 psi 50 bar Flange Flange bore/form ASME B16.5 Face-to-face dimensions EN 558-2, Table 16, Series 36 Seat ring Characteristic Metal seal Soft seal Equal percentage Linear On/off (with cam disk or signal characteristic in the positioner) Rangeability 200:1 Opening angle 75 Medium temperature range Standard version 148 to 752 F 100 to 400 C Leakage class according to ANSI/FCI 70-2 Metal seal Soft seal IV-L1 VI-G1 Table 2 Materials (material numbers according to EN) Body Carbon steel A 216 WCC Stainless carbon steel A 351 CF8M Shaft A 182 F316L Plug /Stellite 6 Trunnion bearing Seat ring Seat holder Seat gasket O-ring on the seat Bearing bushing Packing gland O-ring Screw plug Gasket for screw plug Trunnion bearing seal Packing, hard-faced or Stellite PTFE FPM 80 VR1 /plastic FPM 80 VR1 Graphite/stainless steel/ptfe PTFE/graphite 3 T 9915-1 EN
Table 3 Available K VS and C V coefficients Table 3a Version with metal seat ring ( in mm) Valve size NPS 1 1½ 2 3 4 6 8 10 Flow rate K VS 16 40 80 245 370 685 950 1925 100 % C V 18 46 92 283 428 792 1098 2225 Seat 18 26 36 60 76 105 135 170 K VS 10 24 48 147 220 410 570 1230 60 % C V 12 28 55 170 254 474 659 1422 Seat 16 21.5 29.5 50 60 86 106 146 K VS 6 16 33 105 150 275 380 770 40 % C V 7 18 38 121 173 318 439 890 Seat 14 18.5 25.5 44 53 73 88 126 K VS 4 12 20 63 93 179 240 480 25 % C V 5 14 23 73 108 207 277 555 Seat 10 16 21 37 45 62 73 102 Table 3b Version with soft seat ring ( in mm) Valve size NPS 1 1½ 2 3 4 6 8 10 Flow rate K VS 10 40 68 162 252 510 726 1450 100 % C V 12 46 79 187 291 590 839 1676 Seat 16 26 35 54 70 98 128 160 K VS 6 21 41 135 164 270 460 990 60 % C V 7 24 47 156 190 312 532 1144 Seat 15 21.5 29.5 50 60 86 106 146 K VS 4 15 28 105 121 182 300 620 40 % C V 5 17 32 121 140 210 347 717 Seat 14 18.5 25.5 46 53 73 88 126 K VS 2 11 20 56 72 132 200 410 25 % C V 2.5 13 23 65 83 153 231 474 Seat 10 16 21 37 45 62 73 102 4 T 9915-1 EN
Table 3c C V coefficients for 100 % trim in version with metal seat ring Opening angle NPS 5 10 20 30 40 50 60 70 75 1 1.3 2.4 5.5 9.3 12 14 16 18 19 1½ 2.1 4.1 11 18 24 29 35 40 47 2 3.1 7.4 19 34 48 61 71 78 94 3 3.8 21 51 87 120 154 195 236 286 4 20 37 82 130 188 251 324 390 430 6 35 70 154 252 364 471 605 764 800 8 54 104 247 417 609 709 794 1005 1110 10 70 149 345 614 895 1214 1616 2035 2238 Table 3d C V coefficients for 100 % trim in version with soft seat ring Opening angle NPS 5 10 20 30 40 50 60 70 75 1 1 2 5.4 10 11 12 12 12 12 1½ 1.7 4.6 12 23 33 40 40 41 41 2 2.3 7.9 21 39 59 75 78 79 79 3 7.6 19 46 80 113 144 174 188 189 4 16 34 74 121 178 240 292 294 295 6 26 53 119 211 311 419 518 590 593 8 44 101 227 377 635 733 835 845 849 10 73 135 325 514 844 1063 1268 1385 1686 5 T 9915-1 EN
Dimensional drawings for Table 4 Fig. 8 Dimensions of Type 82.7 Maxifluss Rotary Globe Valve Table 4 Face-to-face dimensions for ANSI valves in Class 150 and Class 300 Valve size NPS 1 1½ 2 3 4 6 8 10 Length L Height H1 in 4.02 4.49 4.88 6.46 7.64 9.02 9.57 11.69 mm 102 114 124 165 194 229 243 297 in 5 5.39 5.79 7.76 8.5 11.61 12.2 14.06 mm 127 137 147 197 216 295 310 357 Table 5 Valve weight without actuator Valve size NPS 1 1½ 2 3 4 6 8 10 Weight kg 8 13 16 35 43 85 140 190 lb 17.6 28.7 35.3 77.2 94.8 187.4 308.6 418.9 6 T 9915-1 EN
Ordering text VETEC Type 82.7 Rotary Globe Valve ANSI version Valve body made of Carbon steel A 216 WCC Stainless carbon steel A 351 CF8M Special material: Valve size NPS Pressure rating Class C V coefficient Connection Flange Seat version Metal seal Soft seal Standard seat Seat with Stellite facing Extended temperature range HT packing Pneumatic actuator Type R M AT Actuator size Bench range Fail-safe action cm² to Fail-close Fail-open bar Accessories Positioner Article code*: Pressure gauge Type 4708 Supply Pressure Regulator Refer to T 8546 EN Type 3999-009X Service Unit for compressed air treatment and control Refer to T 3999-6 EN Limit switch Article code*: Solenoid valve Article code*: * Refer to the associated data sheets for the article codes of the accessories. 7 T 9915-1 EN
Specifications subject to change without notice. SAMSON CONTROLS INC. 4111 Cedar Boulevard Baytown, Texas 77523-8588 USA Phone: +1 281 383-3677 Fax: +1 281 383-3690 Internet: www.samson-usa.com T 9915-1 EN 2010-08