Pneumatic rotary drive Modular program for mounting of quarter turn valves such as ball valves and butterfly valves NMUR and ISO 5211 interfaces Position feedback (including Ex-Versions) Type 2051 can be combined with Sideontrol Positioner ready Type 6518/6519 Type 892/89 Type 265 Solenoid valve Positioner Sideontrol Stainless steel ball valve Position feedback Metal butterfly valve The 2051 pneumatic rotary drives are low maintenance single or double-acting pneumatic linear piston actuators where linear movement of the piston due to the pilot air causes a 90 rotation of the connected valve. ctuator-valve coupling is made via a universal ISO 5211 mechanical interface and the status of ball or butterfly valve can be monitored at a control system through a range of rugged feedback switches. The drives can also be used as modulating control actuators by the addition of urkert s range of Sideontrol positioners. ontrol function Single-acting actuator return by spring, operating e.g. with pilot valve P Technical data Materials ctuator Piston Seal ontrol medium ontrol pressure T umg Rotation djustable angle every 20 Interface Pilot air ports Feedback signal Fittings aluminium alloy aluminium buna-n filtered compressed air with or without oil.5-116 PSI (-8 bar) max allowable working pressure 15 PSI (10 bar) max operating pressure 116 PSI (8 bar) -0 F up to 200 F (-0 up to +9 ) 90, adjustable ±5 of valve travel NMUR Flange interface VE/VI 85 G ¼" NMUR VE/VI 85 ISO 5211 ontrol function I ouble-acting actuator, operating e.g. with pilot valve P ontrol function Single-acting actuator return by spring See page for function principles www.burkert usa.com p. 1/9
Ordering chart Torque ratings (in-lbs) Note: When selecting an actuator we suggest a 20% to 0% above the break torque of the valve (subject to the valve and operating conditions). ouble-acting actuator (ontrol function I) ir Torque Output at Operating Pressure - Psig ctuator size 0 60 80 100 120 125 6 9 125 156 188 9812996 250 125 18 250 12 5 981299 50 225 50 562 65 9812998 1000 500 50 1000 1250 1500 9812999 2250 1125 168 2250 2812 5 98125000 650 1825 28 650 56 55 98125001 5000 2500 50 5000 6250 500 98125002 11000 5500 8250 11000 150 16500 9812500 Spring return actuator (ontrol function, ) ctuator size Spring set Spring torque ir Torque Output at Operating Pressure - Psig 60 80 100 120 Start End Start End Start End Start End Start End 125 R 10 6 11 0 16 1 229 195 01 258 981296 R 10 90 88 1 151 9 21 156 26 218 98129 50 R 190 121 20 125 16 28 28 50 51 6 981298 R 25 162 158 5 21 16 8 29 96 92 981299 1000 R 18 20 9 28 698 526 9 5 1196 1025 9812980 R 559 60 50 120 599 1 88 618 109 86 9812981 2250 R 990 590 10 591 1596 115 2159 11 222 2280 981298 R 120 8 816 226 19 88 2029 151 2505 191 9812986 650 R 15 912 126 996 26 190 59 2819 60 0 9812988 R 2091 121 188 2 200 15 211 226 12 15 9812989 5000 R 20 1180 280 1200 50 200 60 590 5960 80 9812990 R 10 150 1980 1 180 1600 0 2800 5560 990 9812991 11000 R 5100 250 5200 2650 90 520 1000 80 1000 1000 9812992 R 690 0 0 92 690 50 9520 610 12100 80 981299 p. 2/9
Exploded view 12 1 1 1 15 2 8 6 5 2 25 20 21 9 10 22 2 11 16 1 18 19 Item Part Name Materials 1 ody Extruded aluminum alloy (hard anodized) 2 Pistons ie cast aluminum alloy earing Nylon O-ring una-n 5 O-ring una-n 6 End cap (L) ie cast aluminum alloy Washer Stainless steel 8 ap screw Stainless steel 9 O-ring una-n 10 earing Nylon 11 Stop cam Sinteral steel 12 Piston indicator Polyethylene 1 Retaining ring Stainless steel 1 Washer Stainless steel 15 earing Nylon 16 Retaining ring Stainless steel 1 Pinion arbon steel (Electroless nickel plated) 18 earing Nylon 19 O-ring una-n 20 O-ring una-n 21 Washer Stainless steel 22 Stop screw Stainless steel 2 Nut Stainless steel 2 O-ring una-n 25 End cap (R) ie cast aluminum alloy p. /9
Functional principle ontrol function ir supplied to port P1 forces the pistons toward the actuator end caps, compressing the springs. counter-clockwise rotation is achieved. Exhaust air exits from port P2. The loss of air pressure (air or electric failure) at port P1 allows the springs to force the pistons inward. clockwise rotation is achieved. Exhaust air exits from port P2. P2 P1 P2 P1 P2 P1 ontrol function I ir supplied to port P1 forces the pistons towards the actuator end caps. counterclockwise rotation is achieved. Exhaust air exits from port P2. ir supplied to port P1 forces the pistons inward. clockwise rotation is achieved. Exhaust air exits from port P2. P2 P1 P2 P1 P2 P1 Travel djustment Travel djustment Range Range ctuators feature bidirectional pinion travel stops. Side located stops allow a full +5 of valve travel adjustment, giving a guaranteed range of adjustment between 80 and 100 of actuator travel. These travel stops are designed to absorb the maximum rated torque of the actuator and the maximum impact loads associated with recommended stroke speed. +5-5 90 100 Standard ssembly djustment of the counterclockwise and clockwise rotation limits are accomplished by turning the respective left and right stop adjustment screws to reduce or increase output rotation. 80-5 +5 p. /9
imensions [mm] *M5 P0.8*8EEP 80 M6 P1.0*12EEP 51.5 16SQ 2*J 5 2*1/SP *M5 P0.8*8EEP * P TH Q EEP 0 W F E 16SQ.5 0 G F E H 2 12 20 View Show with indicator K 2 125 2250 L M SQ N EEP View Show with indicator 650 11000 ctuator size ISO pattern Output torque at 80 PSI air E F G H J 125 F0 125 in-lb 120.0 6.0 52.5 62.2. 2.0 11.0 MxP0.8 250 F0 or F05 250 in-lb 1. 19.6 9.0 5. 81..8 2.5 12.6 M5xP0.8 50 F05 & F0 50 in-lb 19.2 205.6 98.0 6. 95.0 51.5 2.5 1.8 M6xP1.0 1000 F05 & F0 1000 in-lb 18.0 250.0 121.0 9.2 119.0 6.5 6.2 16.6 M8xP1.25 2250 F0 & F10 2250 in-lb 259.6 55.0 11.0 89.5 10.5 5.5 5.0 18.6 M10xP1.5 650 F10 & F12 650 in-lb 0. 22.0 16.0 99.1 185.2 105.5 9. 2. M12xP1.5 5000 F10 & F12 5000 in-lb 6. 8.0 196.0 116.5 20.8 10.8 9. 28.6 M12xP1.5 11000 F1 11000 in-lb 90.0 62.0 2. 18.5 28.2 125.0 95. 5.8 M16xP2.0 ctuator size ISO pattern Output torque at 80 PSI air K L M N P Q W 125 F0 125 in-lb 2.5 12.5 9.0 10.0 MxP0.8 8.0 2.0 250 F0 or F05 250 in-lb 29. 1.5 11.0 1.0 M5xP0.8/M6xP1.0 8.0/10.0 2.0/50.0 50 F05 & F0 50 in-lb 0.2 18.8 1.0 21.0 M6xP1.0/M8xP1.25 10.0/12.0 50.0/0.0 1000 F05 & F0 1000 in-lb.5 2.0 1.0 25.5 M6xP1.0/M8xP1.25 10.0/12.0 50.0/0.0 2250 F0 & F10 2250 in-lb 9.0 29.5 22.0 1.0 M8xP1.25/M10xP1.5 12.0/15.0 0.0/102.0 650 F10 & F12 650 in-lb 9. 5.5 2.0 5.0 M10xP1.5/M12xP1.5 15.0/19.0 102.0/125.0 5000 F10 & F12 5000 in-lb 99.0 5.5 2.0 5.0 M10xP1.5/M12xP1.5 15.0/19.0 102.0/125.0 11000 F1 11000 in-lb 12..5 6.0 5.0 M16xP2.0 2.0 10.0 p. 5/9
ouble-square insert dimensions [mm] -0.05-0.1-0.05-0.1 +0.1 +0.05-0.05-0 +0.1 +0.05-0.05-0 +0-0.1 R +0-0.1 R H H 11*9 to 22*19 esign 2*1 to 6*2 esign Ordering chart shaft adapters [mm] Insert H R 11 * 9 11 9 15.0 1.0 12.5 98125211 1 * 9 1 9 19.1 20.0 12.5 665 288 1 * 11 1 11 19.1 20.0 1.5 665 289 1 * 9 1 9 2.1 2.0 12.5 98125212 1 * 11 1 11 2.1 2.0 1.5 9812521 1 * 1 1 1 2.1 2.0 19.2 665 290 22 * 1 22 1 29.6 0.0 19.2 666 68 22 * 1 22 1 29.6 0.0 2. 666 685 2 * 1 2 1 6.0 2.0 29.0 19.2 9812521 2 * 1 2 1 6.0 2.0 29.0 2. 98125215 2 * 22 2 22 6.0 2.0 29.0 0.0 98125216 6 * 2 6 2 8.0.0 5.0.0 9812521 p. 6/9
E 2051 Ordering chart limit switch box Type mbient temperature Protection class Position feedback Position indicator able Entry PL-210N -20 to +80 IP6/NEM & X 2 SPT Mechanical losed(red), Open(Yellow) E-0-20 to +85 Exd II T6 2 SPT Mechanical losed(red), Open(Yellow) PL-510N -20 to +60 IP6/NEM,X,,9 E Ex d II T6 2 SPT Mechanical losed(red), Open(Yellow) 2 x 1/2" NPT 98125280 2 x /" NPT 98125281 2 x /" NPT 98125282 imensions PL-210N [mm] 112 88 M5 OPEN 1 15.5 9 NPT 1/2" conduit entry 5 9.5 6.5.5 Micro switch certification V S S PL-210N :MOEL: Enclosure : IP6 TYPE: MEHNIL SWITHS / 2 SPT Valve Position Monitor L O S E E S LO 50/F 05 p. /9
V E 2051 imensions E-0 [mm] Front view Side view Top view LOSE LOSE 20.5 VLVE POSITION INITOR TYPE : MEHNIL SWITH ENLOSURE : IP6 EXPLOSION PROOF : ExdIIT6 POWER : 15-125 OR 250V, 0.6-125V, 0.-250V LOSE 120.6 MIRO SWITH ERTIFITION 6.8 2-PF /" 121.5 5.5 8.6 108.9 5 X 9. 102.6 90 (T YP.) 8.9 1. -M8 TP P. 10 102.6 -M6 TP P. 10 Standard NMUR shaft ottom view Special type 118 P.. 50 imensions PL-510N [mm] 118 19 121. 18. 5 1 able entry /" NPT 9.5 59 59 M6TP P11 5RILL P1 59 5iÆ 5iÆ 1 1 Wiring diagram Mechanical Switch (2 SPT) 118 118 59 5 5 50 Top switch RE N YELLOW NO ottom switch N NO RE LK LUE YELLOW WHITE ROWN Ground LOSE OPEN EXT 1 2 5 6 8 Solenoid valve 18. Voltage: Max 250V or V 0.6 125V, 0. 250V, 16 1/2HP Top switch 125/250V N 16() RE 250V - T150U 1 LK RE N NO 2 LUE YELLOW WHITE YELLOW NO 5 ROWN 6 Solenoid ottom p. 8/9 switch 8 valve Ground LOSE OPEN EXT
Ordering chart ccessories imensions [mm] dapter kit 1 5 2 - ssembly bridge Ø50 0 50 Type Universal adapter for shaft 8 8 Universal assembly bridge 0 29 16 / 2 9 Ø 8 +0.1 ctuator shaft E 20 6.5 80-0 56.5 80 10 50 6.5-10 ( ) 10.6 Ø 15 Ordering chart for ISO Pattern screw sets [mm] ISO Pattern x Socket Set Screw IN 916 2 S/S 18-8 Includes x Flat Washer in 125 S/S 18-8 x Metric Hex Nut IN 9 2 S/S 18-8 F0 M5-0.8 x 25 M5-5. x 10 M5-0.8 x 8 x 98125298 F05 M6-1 x 25 M6-6. x 12 M6-1 x 10 x 5 98125299 F0 M8-1.25 x 25 M8-8. x 16 M8-1.25 x 1 x 6.5 9812500 F10 M10-1.5 x 5 M10-10.5 x 20 M10-1.5 x 1 x 8 9812501 F12 M12-1.5 x 0 M12-1 x 2 M12-1.5 x 19 x 10 9812502 F1 M16-2 x 0 M16-1 x 28 M16-2 x 2 x 1 981250 In case of special application conditions, please consult for advice. We reserve the right to make technical changes without notice. hristian ürkert GmbH & o. KG 120/0_US-en p. 9/9