Fisher 585C Piston Actuators - Emerson Electric

1 585C Piston ActuatorsThe 585C linear Piston actuator is a powerful,double-acting actuator that provides accuratethrottling or on-off operation for sliding-stem 585C Piston actuator family is available in sizes 25to 130 to cover a wide range of thrust and travel lengthrequirements. It can be used with switching valves foron-off control, or with the DVC6200 digital valvecontroller or 3600 positioner for 585C has a wide-range of supply pressurecapabilities, up to 150 psig. As the 585C isdouble-acting, the positioner supplies air to both sidesof the Piston , resulting in stiff, precise movement more information contact your Emerson High Thrust Capability-- With standard air supply,the Size 130 Fisher 585C can produce up to 111,000 Newtons (25,000 lbs) of Wide Range of Sizes-- The 585C family of actuatorsoffers a wide range of sizes, with Piston areas of 168sq cm (26 sq in) up to 1,429 sq cm ( sq in).

2 N Rugged Construction-- The 585C standard yokematerial is ductile iron, resulting in robustconstruction and increased thrust 585C Piston ACTUATORWITH FIELDVUE DVC6200f DIGITAL VALVE CONTROLLERX0175-2n Broad Travel Capability-- 585C Piston actuatorsprovide standard travel lengths of up to 203 mm (8inches).n High-Performance Instrumentation-- 585 Cactuators are available with a variety of positionersand accessories, including the FIELDVUE DVC6200digital valve controller . The 377 trip valve and tanksystem are also available for fail-safe Low Ambient Temperature-- Option available forapplications with ambient temperatures down to-60 C (-76 F). Uses Fluorosilicone O-rings andNitronic 50 stem connector assembly. Compliant toGOST ActuatorD102086X012 Product :585 CDecember 2019585C ActuatorD102086X012 Product :585 CDecember 2019 2 Figure 1.

3 Fisher 585C Piston actuator ComponentsW7447-1 STEM CONNECTORYOKECAP SCREWPISTON O-RINGPISTONCYLINDERSPRING(SIZES 25 AND 50)TRAVEL STOPSTEM O-RINGSEAL BUSHINGTRAVEL INDICATORACTUATOR STEMC ontentsFeatures and Advantages of Operation and Accessory Selection Data Specifications ActuatorD102086X012 Product :585 CDecember 2019 3 SpecificationsOperating Pressure(1)Sizes 25-50:Maximum Allowable: bar (150 psig)Minimum Recommended: bar (20 psig)Sizes 60-130:Maximum Allowable: See table Recommended: bar (35 psig)TravelSee table 2 Thrust CapabilitiesSee tables 4, 5, 6, 7, and 8 Stroking SpeedsVaries with actuator size, actuator spring, travel, andsupply pressure. If stroking speed is critical, consultyour Emerson sales officePiston AreaSee table 8 Cylinder Volumetric DisplacementSee table 2 Operative Temperature Limits(1)For All Sizes:Standard Construction ( Nitrile O-Rings): -40 to 80_C(-40 to 175_F)Optional Construction (Fluorocarbon O-Rings): -18 to149_C (0 to 300_F)For Sizes 60 through 130:Optional Low Ambient Temperature (FluorosiliconeO-Rings): -60 to 80_C (-76 to 175_F)With handwheel: -51 to 80_C (-60 to 175_F)Yoke Boss and Valve Stem DiametersSee table 3 Pressure ConnectionsSizes 25 and 60:J1/4 NPT internal (standard), or J3/8 NPT internal(optional)Size 50:J1/4 NPT internal (standard), or J1/2 NPT internal(optional)Sizes 68-130.

4 J1/2 NPT internal (standard)DimensionsSee figures 6 and 7 Construction MaterialsPartMaterialYokeDuctile IronPistonAluminumCylinderAluminumBoltin g and FastenersNCF (non-corroding finish)Springs (sizes 25 & 50 only)Alloy SteelO-RingsNitrile (std), Fluorocarbon, or EPDMA ctuator StemChrome-plated SteelStem ConnectionStainless SteelTravel Indicator ScaleStainless SteelPaintPolyester PowderActuator Stem(sizes 60-130 only)S41600 (416) SST, Chrome PlateCylinder Seal Bushings(sizes 60-130 only)BrassInstrument MountingUniversal NAMUR mountingApproximate Weights (less positioner andhandwheel)Size 25:2-1/8 inch yoke boss, 7 kg (16 pounds)2-13/16 inch yoke boss, 8 kg (17 pounds)Size 50:2-13/16 inch yoke boss, 20 kg (45 pounds)3-9/16 inch yoke boss, 22 kg (48 pounds)Size 60: 31 kg (68 pounds)Size 68: 54 kg (120 pounds)Size 80: 102 kg (225 pounds)Size 100: 113 kg (250 pounds)Size 130: 188 kg (415 pounds)OptionsSizes 25 and 50:JTop-mounted handwheel, see figures 6 and 7 andtable 9 JCylinder bypass valve JLimit switches JFisher4200 position transmitterSizes 60-130:JIntegral side-mounted handwheel, see figure 8 andtables 9 and 12 Sizes 25-130:JFIELDVUE mounting optionsJFisher 377 trip valve system to fail actuatorJUp or Jdown or Jlock in last positionJTopWorx DXP M21 GNEB electrical valve stemposition switchJMicro-Switch limit switches1.

5 The pressure/temperature limits in this bulletin and any applicable standard or code limitation for valve should not be ActuatorD102086X012 Product :585 CDecember 2019 4 Features and AdvantagesTable 1. Features and AdvantagesFEATURESADVANTAGESHigh thrust capabilityWith air supply capability of up to 150 psig, the 585C can produce up to 111,000 Newtons (25,000 pounds) thrust toovercome high valve Length CapabilityDepending on size, strokes of up to 203 mm (8 inches) are range of sizesThe 585C is available in standard sizes 25, 50, 60, 68, 80, 100, and mounting capabilityDepending on size, the 585C can be mounted to yoke boss diameters of 2-1/8 inches through 5-inches, and valvestem diameters of up to 1-1/4 mounting capabilityUniversal NAMUR mounting provides a consistent mounting method for all sizes. This mounting capability providesvibration resistance per frequency responseThe double acting construction allows quick response to instrument constructionPressure on both sides of the Piston , plus the relatively small volume of air within the cylinder, results in stiff, size 25 and 50 Actuators are available with a top-mounted handwheel.

6 All other 585C actuator sizes canaccommodate a side-mounted springsThe sizes 25 and 50 are available with bias springs. A bias spring under the Piston fully retracts the actuator stem uponloss of supply air, while a bias spring on top of the Piston fully extends the actuator stem. The spring bias mode iseasily reversed without the need for additional 2. Fisher 585C Piston actuator Without SpringsE0409 Principle of OperationThe 585C Piston actuator (figures 1 and 2) uses apiston that moves inside the actuator cylinder. AnO-ring (see figure 1) provides a seal between the pistonand the an equilibrium state, the actuator reacts to aforce unbalance that is created by increasing supplypressure on one side of the Piston ,and decreasing it onthe other. This moves the Piston up or down, andresults in a repositioning of the valve control ActuatorD102086X012 Product :585 CDecember 2019 5 Figure 3.

7 Fisher 585C Piston actuator with HandwheelE0410 actuator with Handwheel (figures 3 and 6)The handwheel version can be used to open or closethe valve manually (either during normal operation orin an emergency), to position the valve at any point inthe stroke, or to act as a travel 25 and 50 Actuators use an integral top-mountedhandwheel. See figure 60 to 130 Actuators use a side-mountedhandwheel, and come with a spring-loaded ball detentwhich prevents vibration from changing thehandwheel setting. Handwheels for most types areeither 203 mm (8 inches) in diameter with beveledgears or 432 mm (17 inches) in diameter with 4. Fisher 585C Piston actuator with Spring ReturnW7447-1 actuator with Spring Return (figure 4)585C size 25 and 50 Actuators are available with biassprings. The 585C actuator with bias spring has thespring under the Piston and fully retracts the actuatorstem upon loss of cylinder pressure.

8 The bias spring inthe 585CR actuator is on top of the Piston and fullyextends the actuator stem upon loss of cylinderpressure. No additional parts are required to convertfrom one actuator type to the ActuatorD102086X012 Product :585 CDecember 2019 6 Instrument and AccessorySelectionAn excellent selection of sensitive and accurateinstruments and accessories is available for 585 Cpiston Actuators . These include FIELDVUE DVC6200digital valve controllers, 3600 pneumatic (P/P) andelectro-pneumatic (I/P) positioners, TopWorx DXPM21 GNEB electrical valve stem position switch, 377trip valve, 4200 electronic position transmitter, andlimit switches. They are described in separatepublications. Contact your Emerson sales office actuator may be installed in any orientation butnormal installation is with the actuator vertical abovethe valve.

9 actuator and positioner dimensions areshown in figures 6, 7, and the supply source is capable of exceeding themaximum actuator operating pressure or instrumentsupply pressure, appropriate steps must be takenduring installation to protect the instrument and allconnected equipment against DataSee table 2 for Piston cylinder clearance volumes, table3 for yoke boss and valve stem diameters, and tables 4,5, 6, 7, and 8 for actuator thrust 2. Fisher 585C Piston Cylinder Clearance VolumesPISTON AT TOP OF CYLINDER (SPRINGS BELOW Piston FOR SIZE 25 AND 50)ActuatorSizePiston AreaMaximum actuator TravelUpper Clearance Volume(figure 5)Volume Below Piston (figure 5) AT BOTTOM OF CYLINDER (SPRINGS ABOVE Piston FOR SIZE 25 AND 50)ActuatorSizePiston AreaMaximum actuator TravelLower Clearance Volume(figure 5)Volume Above Piston (figure 5) ActuatorD102086X012 Product :585 CDecember 2019 7 Table 3.

10 Yoke Boss and Valve Stem DiametersACTUATOR SIZEYOKE BOSS DIAMETERVALVE STEM DIAMETERmmInchesmmInches2554712-1/82-13 , , , Heavy actuator to bonnet 5. Clearance VolumesUPPERCLEARANCEVOLUMEVOLUMEBELOWPI STON44B7218-CLOWERCLEARANCEVOLUMEVOLUMEA BOVEPISTON44B7217-C585C ActuatorD102086X012 Product :585 CDecember 2019 8 actuator Thrust CapabilitiesTable 4. Fisher 585C Size 25 and 50 actuator Thrust Capabilities, Units (Spring Retracts Stem)ACTU-ATORSIZESPRINGRATE,lb/inACTUAT ORSTEMTRAVEL,INCHESSPRING THRUST, POUNDSNET THRUST FOR 585C WITH actuator STEM FULLYEXTENDED AT FULL TRAVELSPRINGCOLORStemRetractedStemExtend edOperating Pressure, psig(1)405060708090100110125150 Force, Pounds250 All0010401300156018202080234026002860325 03900 SpringsNot & Green& White500 All0018402300276032203680414046005060575 06900 SpringsNot &Light &GreenX indicates where the listed supply pressure is not sufficient to overcome the opposing bias spring The maximum design pressure for size 25 and 50 actuator is 150 psig.