Pneumatic Rack & Pinion Actuators



Index TOC \o "1-3" Pneumatic Rack & Pinion Actuators PAGEREF _Toc263089219 \h 1General Overview PAGEREF _Toc263089220 \h 1Features PAGEREF _Toc263089221 \h 1Anti Blowout system and mounting variations PAGEREF _Toc263089222 \h 2Mounting variations PAGEREF _Toc263089223 \h 2Bi-directional travel stops PAGEREF _Toc263089224 \h 3Parts List MOD63~MOD140 PAGEREF _Toc263089225 \h 4Construction Figure PAGEREF _Toc263089226 \h 4Material of contraction PAGEREF _Toc263089227 \h 5Parts List MOD160~MOD350 PAGEREF _Toc263089228 \h 6Construction Figure PAGEREF _Toc263089229 \h 6Material of construction PAGEREF _Toc263089230 \h 7Technical data PAGEREF _Toc263089231 \h 8Actuator dimensions (Inch) PAGEREF _Toc263089232 \h 9Dimension of MOD63~MOD140 Figure PAGEREF _Toc263089233 \h 9Dimension of MOD63~MOD140 Form PAGEREF _Toc263089234 \h 10Dimension of MOD160~MOD350 Figure PAGEREF _Toc263089235 \h 11Dimension of MOD160~MOD350 Form PAGEREF _Toc263089236 \h 12Actuator body drillings for solenoid mounting (Namur standard, mm/Inch) PAGEREF _Toc263089237 \h 13Actuator top drillings for accessory mounting (Namur standard, mm/Inch ) PAGEREF _Toc263089238 \h 13Mounting flange dimension details (Inch) PAGEREF _Toc263089239 \h 14Operation principle of double acting actuator PAGEREF _Toc263089240 \h 15Double acting actuator torque output: PAGEREF _Toc263089241 \h 16Operation principle of spring return actuator: PAGEREF _Toc263089242 \h 17Spring Setting PAGEREF _Toc263089243 \h 18Spring return actuator torque output MOD SR160 ~SR350 PAGEREF _Toc263089244 \h 19Spring return actuator torque output MOD SR240 ~SR350 PAGEREF _Toc263089245 \h 20Pneumatic Rack & Pinion ActuatorsGeneral OverviewDesigned and manufactured for the ultimate in durability and reliability.Pneumatic Rack & Pinion Actuators provide outstanding service pact Rack & Pinion Design utilizing the whole piston area develops output torque.Quarter-Turn Operation Designed for using on a variety of valve types: ball valves, butterfly valves, plug valves dampers etc.Hard anodized aluminum body.Chromate corrosion protection on all aluminum components.Suitable for indoor and outdoor installation.Adjustable travel double stops. 90 degrees +/- 5 degrees.Double acting type torque outputs from 328 in-lbs. to 56552 in-lbs. with an 80psi air supply.All moving parts are factory lubricated. No additional lubrication required.Removable/replaceable drive inserts.Pre-loaded spring assemblies.ISO 5211 mounting.NAMUR (VDI/VDE) accessory mounts.Anti Blow-Out pinion design.Maximum pressure rating: 116 patible media: clean, dry air, filtered noncorrosive gas or light hydraulic oil.Mounting dimensions are Keystone standards and ISO standards for direct mounting capabilities.FeaturesThe hard-anodized actuator body along with the control modules is protected from corrosive environments with a protective finish that has passed a 1,000 hour-salt spray test per ASTM B117.Die cast aluminum end caps with polyester powder coat finish. Using the same end caps on both SR and DA actuators allow customers to lower inventory costs and give quick interchangeability. Allowing customers to convert SR units to DA units by adding springs only.Die casting aluminum piston. The precision-machined rack is chrome plated for optimal performance. It has a three point guiding system for moving stable and extended service life. High qualified seamless O-rings for airtight sealing and long service life.Anti Blow out pinion design. Superior stability and field safety spring package (sizes 63 through 140). The EM pneumatic actuator utilizes two embedded springs, an inner and outer springs allow five different spring torques. The design also allows equal and evenly distributed force to each piston extending service life.The encapsulated spring package with corrosion-protected can be easily disassembled with a standard Allen wrench for conversion of double-acting to spring-return configuration on sizes 52 through 140.Anti-friction housing guide band ensures no metal-to-metal contact and provides wear protection between housing and piston for extended service life. Ideal for modulating or on/off control applications.Anti Blowout system and mounting variationsPiston provided withanti-blowout flat keyANTI-BLOWOUT SYSTEMMounting variationsMOUNTING VARIATIONSView from the top of the pinionCounterclockwise RotationClockwise RotationBi-directional travel stopsAdjustable stops on the center of the body provide the flexibility of accurate valve rotational positioning at the end of the ‘open’ and ‘close’ stroke.The total travel of 100 degrees allows for end of travel adjustment of 5 degrees at both open and close positions.Travel stops must not be used for manual override purposes.Travel stops on actuators with reverse action require special build and must be specified at time of ordering.5° Under travel0° Over travel5° Over travelShaft and CamActuator BodyActuator BodyActuator BodyClose adjustment boltOpen adjustment boltAll views illustrated in the open positionParts List MOD63~MOD140Construction Figure22860067310Part list MOD63~MOD140Material of contractionItemPart NameQTYMaterialStandardProtectionOptional Material1Body1Extruded AluminumASTM 6000 seriesHard anodized--2Piston2Die casting aluminumASTM A380Chromatized3Pinion1Carbon steelASTM 1045Nickel platedAluminum4End cap2Die casting aluminumASTM A380Powder Coating5Spring outer0-2Spring steelSpring steelDip coating6Spring inner0-2Spring steelSpring SteelDip coating7Guide band1POMPTFE8Bearing2POMPTFE9O-ring2NBRViton/Silicone10Spring holder2Carbon steel11O-ring2NBRViton/silicone12Washer1NylonPA6613Cam1Stainless steelASTM 304Viton/silicone14Spring Clip1Stainless steel15O-ring1NBRViton/silicone16Washer1POMPTFE17O-ring1NBRViton/silicone18Bolt2Carbon steel19Washer2Stainless steelASTM 30420Stop Bolt2Stainless steelASTM 30421Nut2Stainless steelASTM 30422O-ring/washer2NBR/steelViton/silicone23Cap Bolt8Stainless steelASTM 30424Spring washer8Stainless steelASTM 304Parts List MOD160~MOD350609600414020Construction FigureParts List MOD160~MOD350Material of constructionItemPart NameQTYMaterialStandardProtectionOptional Material1Body1Extruded AluminumASTM 6000 seriesHard anodized--2Piston2Die casting aluminumASTM A380Chromatized3Pinion 1Carbon steelASTM 1045Nickel platedAluminum4End cap2Die casting aluminumASTM A380Powder polyster painted5Spring0-12Spring steelSpring steelDip coating6Cam1StainlessASTM 3047Bearing2POMPTFE8O-ring2NBRViton/Silicone9O-ring2NBRViton/silicone10Guide band4POMPTFE11O-ring1NBRViton/silicone12Bearing1POMPTFE13O-ring1NBRViton/silicone14Washer1NylonPA6615Washer1Stainless steelASTM 30416Spring clip1Stainless steelASTM 30417O-ring2NBRViton/silicone18Washer2Stainless steelASTM 30419Nut2Stainless steel ASTM 30420Stop Bolt2Stainless steelASTM 30421Cap Bolt8Stainless steelASTM 30422Spring washer8Stainless steelASTM 304Technical dataMax. supply pressure: 145PSIRated supply pressure: 120 PSIOutput torque @80 PSI: Double acting models: up to 56,552 In-lbs Spring return models: up to 20,356NM In-lbsTemperature range: Standard Temp: -4°F to 180°F (NBR) High Temp: -4°F to 250°F (Viton) Low Temp: -40°F to 180°F (Silicone)Actuator weight (lb.)MOD6385100125140160190210240270300350DA3.37.511.122.135.743.772.8106152220249295SR (Full Springs)4.09.514.529.648.577.299.2126179267298373Actuator operating time (Second)MOD?6385100125140160190210240270300350DAOpen0.060.200.300.831.201.502.002.703.504.005.006.00Close0.080.190.270.661.301.702.203.204.004.505.707.00SROpen0.140.310.441.081.802.102.403.504.104.506.407.50Close0.140.330.460.901.601.802.803.904.605.007.608.50The above approximated actuator operating time are obtained at the pressure of 6 Bar without load.Actuator air consumption (L)MOD6385100125140160190210240270300350Open0.190.510.791.632.403.104.305.9010.0014.5023.8036.00Close0.230.641.002.213.804.906.909.5015.2021.4038.1045.00The above data are obtained at room temperature.Actuator dimensions (Inch)1066800414020Dimension of MOD63~MOD140 FigureDimension of MOD63~MOD140 Form?????????Bottom o f shaftMounting Holes (ISO5211)ModABCDEFGJNTHIKeyNO X Size (mm)PCD (mm)637.323.223.982.910.080.160.79?1.140.560.38－－－4×M6-6H×9 (F05) 504×M8-6H×12 (F07) 708510.124.135.122.910.080.160.791.570.760.50－－－4×M6-6H×9 (F05) 504×M8-6H×12 (F07) 7010011.814.848.873.460.080.160.791.890.760.50－－－4×M8-6H×12 (F07) 704×M10-6H×15 (F10) 10212515.355.877.054.330.080.160.792.31－－1.251.130.254×M12-6H×18 (F12) 12514017.686.567.954.410.080.160.792.68－－1.251.130.254×M12-6H×18 (F12) 125Actuator dimensions (Inch)1828800310515Dimension of MOD160~MOD350 FigureDimension of MOD160~MOD350 Form??????????Bottom of shaftMounting Holes (ISO5211)ModABCDEFGJKHIKeyNO X Size (mm)PCD (mm)16018.747.528.466.894.416.220.080.160.791.251.130.254×M12-6H×15.88 (F12)12519021.549.0610.318.114.576.97?0.080.161.181.521.380.324×M12-6H×15.88 (F12)12521023.269.9611.348.986.140.080.161.182.060.500.504×M12-6H×15.88 (F12)1254×M20-6H×25.4 (F16)16524027.6411.1412.7610.246.22?0.120.161.182.061.850.504×M20-6H×25.4 (F16)16527028.4312.2014.0211.577.879.840.120.161.182.061.850.504×M20-6H×25.4 (F16)16530029.2113.5414.8812.568.6210.630.120.161.182.061.850.504×M20-6H×25.4 (F16)16535033.8615.7917.0015.0410.3112.400.120.161.182.061.850.504×M20-6H×25.4 (F16)165Actuator body drillings for solenoid mounting (Namur standard, mm/Inch)(0.63)(1.77)(0.88)(0.47)(0.94)(0.79)MOD 63~240MOD 270~350Actuator top drillings for accessory mounting (Namur standard, mm/Inch )MOD 63～125MOD 140～350(1.18)(1.18)(5.12)(3.15)Mounting flange dimension details (Inch)?Bottom of shaftMounting Holes（ISO5211）ModNTHIKeyNO X Size (mm)PCD (mm)630.5630.378－－－4×M6-6H×9 (F05)504×M8-6H×12 (F07)70850.7520.500－－－4×M6-6H×9 (F05)504×M8-6H×12 (F07)701000.7520.500－－－4×M8-6H×12 (F07)704×M10-6H×15 (F10)102125－－1.2501.1260.2524×M12-6H×18 (F12)125140－－1.2501.1260.2524×M12-6H×18 (F12)125160－－1.2501.1260.2524×M12-6H×15.88 (F12)125190－－1.5161.3780.3154×M12-6H×15.88 (F12)125210－－2.0590.5000.5004×M12-6H×15.88 (F12)1254×M20-6H×25.4 (F16)165240－－2.0591.8500.5004×M20-6H×25.4 (F16)165270－－2.0591.8500.5004×M20-6H×25.4 (F16)165300－－2.0591.8500.5004×M20-6H×25.4 (F16)165350－－2.0591.8500.5004×M20-6H×25.4 (F16)165Torque 0o -5o +5o90o 90o 85o 95o 85o 0o-5o +5oClosed positionOpened positionClosed positionCounterclockwise rotationRotationTOP VIEWClockwise??Operation principle of double acting actuatorWith reference to the above diagram it can be noted that the torque of a double acting actuator remains constant throughout the complete action. The user can decide on which model to choose according to his/her own specific requirements, using the following guidelines:Define the maximum torque of the valve to automate.To obtain a safety factor increase the torque value chosen by 25-50% (subject to the type of valve and working conditions).Once the torque value suggested is obtained consult the torque chart and in relation to the corresponding air pressure find a torque value exact to or exceeding the one obtained.Once the torque value is determined move horizontally to the column “model” to find the actuator model required.Double acting actuator torque output:MODAir Supply (psi)405060708090100120Output torque (in-lbs.)DA63164205246287328369410492DA8543454365276086997710861303DA100676845101411841353152216912029DA12514681835220225682935330236694403DA14020252531303835444050455750636076DA16031743968476155556348714279359522DA19047475934712183089495106811186814242DA21069598699104391217913918156581739820878DA24010388129852259981817920776233732597031164DA2701292115045203552655029382319493725942480DA3001770020523280103451537170413304813554959DA3502616131241413305148056552536407162381818Operation principle of spring return actuator:Torque?Opened positionClosed positionOpened positionCounterclockwise rotation Clockwise rotationRotationPress air working/ Opening rotationSprings working/Closing rotation 0o -5o +5o 90o 90o 85o 95o 85oClosed position 0o -5o +5oTOP VIEWWith reference to the above diagram the torque of a spring return actuator is not constant, but decreasing.This is due to the action of the springs that when compressed during air actuation counter act the piston movement and accumulate energy which will be available in a decreasing way during the rotation in version. The torque given by the actuator is defined by four fundamental values.Opening rotation (Press air working)Torque output at closed position (0o)=Actuator torque deducts unfolded springs torqueTorque output at opened position (90o)=Actuator torque deducts compressed springs torqueClosing rotation (Springs working)Torque output at opened position (90o)= compressed springs torque. Torque output at opened position (0o)= unfolded springs torqueThe user can decide on which model to chose according to his/her own specific requirements, using the following guide lines:Define the maximum torque of the valve to automate.To obtain a safety factor increase the torque value chosen by 25-50% (subject to the type of valve and working conditions).Once the torque value suggested is obtained consult the torque chart and in relation to the corresponding air pressure find the torque value exact to or exceeding the one obtained, taking account of the lower value between the opening and closing positiionvalues.Once the torque value is determined ,move horizontally to the column “model” to find the actuator model required.Spring SettingVALID FROM MOD.63TOMOD. 140SPRING SETTINGSETEXTERNALSPRINGINTERNALSPRINGS111S22-S312S421S522VALID FROM MOD. 160 TO MOD. 350SPRING SETTINGSETSPRINGSFOREACHSIDES52/3S63/3S73/4S84/4S94/5S105/5S115/6S126/657143652070101066800207010Spring return actuator torque output MOD SR160 ~SR350MODSPRING SETSPRING TORQUE (in-lbs)Air Supply (psi)40.050607080.090100120Output Torque (in-lbs)0?90?0?90?0?90?0?90?0?90?0?90?0?90?0?90?0?90?ENDStartStartEndStartEndStartEndStartEndStartEndStartEndStartEndStartEndSR160S511641732201014422804223535973029S61397207917771095257118893364268241583476S716302425154474923381542313123363925312947193923S818632772210511962899198936922783448635765279437060735163S9209531182666164334592436425332305046402358404817S1023283465243312963227209040202883481436775607447071946057S11256138112994174337872537458133305374412469615711S12279441582761139735542190434829845141377767295364SR190S517292502301822454205343253924619S62075300326721745385929325046411862335305S7242135032326124435132431470036185887480570745992S8276740033167193143543117554143046728549179146678S9311345044008261751953804638249917569617887557364S10345950043662211748493303603644907223567784106864107839238S113805550545032803569039906877517780646363104378737S124150600541572303534434896531467677185863100918237SR210S526883789427131706011491077516650S6322545473734241354744152721458928953S73763530431961655493633956676513484166874101568614S84300606243992637613843777878611696187856113589596S9483868205601361973415359908170981082088381256010578S10537575785063286168034601854363411028380801202398201550213300S11591383356266384380055583974573231148590621496512542S12645090935728308574684825920865651094883051442711784Spring return actuator torque output MOD SR240 ~SR350MODSPRING SETSPRING TORQUE (in-lbs)LBS)Air Supply (psi)40.050607080.090100120Output Torque (in-lbs)S0?90?0?90?0?90?0?90?0?90?0?90?0?90?0?90?0?90?ENDStartStartEndStartEndStartEndStartEndStartEndStartEndStartEndStartEndSR240S5390154016487498790847584103258825S6468164815707390783046504954577451349811698S75462756249262826752354238764666412717106171531413214S862428642674343437984558411937953714534121341713114731S97022972272044504111578457137541105416351136511894816248S1078021080264243424103777377129749974155711257118168151682336220362S1185831188395966297121938894147901149117387140882258219282S1293631296388165216114137813140101041016607130072180118201SR270S550457071799259741057685671574413735S660368452699245939585717714753123551993017532S7703698416009319586025788137711095618948161342234619541S880091124876114398127799567179571475321373181342393920700S98983126291178881691696513355203991675322966193202827624630S10100011401010797678815974119651938215372219481793927258232493248028470S11110181541714992105671836413965209301653226240218423146227063S1211992167801400191771739012602199571516925267204793048825700SR300S56461939011240831014063111332155018620S67753112669947643412771925720258167442676223249S790451314286554558114787381189661486825470213732812524028S810337150181018655051767312992241781949726833221523099326311S9116291689516381111162288617620255412027529701244353650631241S10129211878015089923121594157352424918390284092255035214293554203836179S11142222065620293138592294816514271082067433913274794073734303S12155052253219010119832166514638258241879732630256033945332426SR350S51038115063157801109820859161783094826267S61246118081137008080187801316028869232493902033400S714532210901162950711670910151267982024036949303914202035462S81661124107146297133247181722234869273733994032444370282953255012S9186912711622638142133278924364378602943534949265235293244507S102076230134205671119530718213463578926417328782350650861414896105651684S112284233143183373371023408307982049748781384805897648675S122492236161153193163020390287181747946701354625689745657 ................
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