Emerson Fisher 3570 Data Sheet
Contents
1. SINGLE FLANGE TRAVEL STOPS AVAILABLE FOR EFFECTIVE PISTON STROKING ACTUATORS WITH 105 mm ACTUATOR PISTON AREA DIAMETER SPEED 1 16Versions All Others Except Fisher 487 4 125 INCHES MAXIMUM SIZE 487 1 2 RATED TRAVEL cm2 Inch2 mm Inch mm s Inch s mm Inch mm Inch mm Inch 30 107 16 5 121 4 75 102 4 es 105 4 125 89 3 5 40 182 28 25 156 6 125 52 2 05 60 258 55 5 216 8 5 33 1 30 208 8 123 18 aes 3 zm 1 For actuators with positioners at 6 9 bar 100 psig supply pressure and all prestroke conditions satisfied Stroking speeds for actuators without positioners or with snubbers will depend on the particular construction involved 2 See 480 Series Actuators Specifications for these travels Table 2 Action Under Normal Operating Conditions DESIRED PISTON MOTION ACTUATOR DESCRIPTION Down Up fae i a Direct acting Increasing input signal pressure to bellows Decreasing input signal pressure to bellows pa erase Reverse acting Decreasing input signal pressure to bellows Increasing input signal pressure to bellows F a Supply pressure loaded on top of piston Supply pressure loaded on bottom of piston Without positioner exhausted from bottom exhausted from top 1 Supply pressure is routed through relays to piston Figure 1 Positioner Simplicity NOZZLE DETERMINES SENSITIVITY RANGE SPRING BIAS SPRING REMOVAL OF FOUR SCREWS DETERMINES ADJUSTING2. 1 4 18 NPT SUPPLY CONN ON BACKSIDE 310 12 19 Z BOLT CIRCLE NO OF STUDS BL1413 B A1291 1 gt Duplicated on opposite side each hole is 5 16 inch 18 UNC 2B and tapped 13 0 50 deep 2 gt This dimension does not exist if no snubber is used Product Bulletin 480 Series Actuators 61 2 480 February 2013 D100091X012 Table 5 Dimensions for Actuators without Positioner with Long Stroke or with Threaded Piston Rod and Universal Mounting Flange A B F G I K Actuator 13 16 15 16 15 16 15 16 Bolt Circle Threaded Size Versions Versions Versions Versions Versions Versions Versions Versions Diameter Thread Piston Rod Diameter Connection mm Inch mm Inch mm Inch mm Inch mm Inch mm mm mm Inch mm Inch mm Inch UNF 2A 30 222 8 75 ae 90 3 56 SS 64 2 5 33 1 31 99 3 88 1 2 13 7 8 inch 14 40 60 222 8 75 343 13 5 90 3 56 108 4 25 64 2 5 47 1 87 33 1 31 51 2 00 99 3 88 1 2 13 7 8 inch 14 Figure 9 Dimensions for Actuators without Positioner with Long Stroke or with Threaded Piston Rod and Universal Mounting Flange refer to table 5 111 4 38 121 gt 1 4 18 NPT re 14 18 NPT A 4HOLES TAPPED 22 mm 0 88 inches DEEP mm inches C gt For 16 version
3. aes SIZE 40 ACTUATOR ACTUATOR SIZE 60 E ACTUATOR lt 150 104 2 amp 125 8 6 zB N a A W 100 69 A z gt gt a 75 5 2 A gt 2 50 34 0 i a A 1 7 a g 2a a e 8 10 12 14 16 18 20 22 24 26 28 3 32 5 5 8 9 26 7 44 5 62 3 80 97 9 115 7 133 5 y Thrusts in thousands of pounds in thousands of newtons A5961 for actuators with positioners lt 1 Note is the limitinq factor for usable actuator force Figure 3 Frequency Response n ET H csi TSH see 21 ee a 004 68 01 2 468 1 4 681 4 6 8 10 A5962 FREQUENT HERTZ PHASE LAG DEGREES NORMALIZED GAIN Principle of Operation Actuator These actuators react to a pressure unbalance that is created by loading supply pressure on one side of the piston and unloading the opposite side Some type of switching device is required to shift the supply pressure from one side of the piston to the other For most actuators in the 480 Series this device is a 3570 1 gt May be increased by 10 for actuators without positioners Either this thrust or the maximum allowable loading for the control device 1 SIZE 30 19mm 0 75 INCH TRAVEL 2 SIZE 40 38mm 1 5 INCH TRAVEL 3 SIZE 60 38mm 1 5 INCH TRAVEL positioner However a separate loading device must be provided for actuators without positioners For actuators with positioners figure 4 the pneumatic output signa
4. mm Inch Standard Flange Universal Mounting Flange 30 171 6 75 0 45 40 206 8 12 45 45 60 267 10 50 22 5 45 Figure 6 Cylinder Diameter and Bolt Center Location All Actuators refer to table 3 BH9452 K A1290 Figure 7 Dimensions for Actuators with Clevis Connection 1 4 18 NPT SUPPLY CONNECTION ON BACKSIDE 3 8 18 NPT VENT CONNECTION 8 0 31 DIAMETER BOLT 46 1 81 4 3 8 INCH 16 HOLES TAPPED 2 88 22 0 88 DEEP 127 mm 5 00 inch BK4109 B A1295 1 gt Duplicated on opposite side each hole is 5 16 inch 18 UNC 2B and tapped 13 0 50 deep 480 Series Actuators D100091X012 Product Bulletin 61 2 480 February 2013 Table 4 Dimensions and Mounting Information for Actuators with Threaded Piston Rod and Standard Mounting Flange or Positioner or Snubber l K ACTUATOR A B X j Bolt Circle Diameter THREADED PISTON SIZE Number ROD CONNECTION mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch UNF 2A 30 250 8 06 86 3 38 170 6 69 63 2 50 33 1 31 2 146 5 75 40 208 8 19 83 3 25 173 6 81 63 2 50 33 1 31 4 181 7 12 7 8 inch 14 60 211 8 31 79 3 12 203 8 00 63 2 50 33 1 31 8 241 9 50 Figure 8 Dimensions and Mounting Information for Actuators with Threaded Piston Rod and Standard Mounting Flange or Positioner or Snubber refer to table 4 157 K 6 19 R 1 130 3 8 18 NPT 5 13 VENT CONN
5. 105 mm 4 125 inch Maximum Rated Travels See table 1 Thrust Information See figure 2 Torque Output 480 480 15 and 480 16 for butterfly valves Contact your Emerson Process Management sales office Stroking Speeds See table 1 Operative Ambient Temperature 2 With Nitrile O Rings 46 to 80 C 50 to 175 F With Fluorocarbon O Rings Optional 18 to 149 C 0 to 300 F Actuator Size and Piston Size See table 1 Pressure Connections Standard is 1 4 NPT For larger sizes contact your Emerson Process Management sales office Construction Materials Actuator Part Material Cylinder and Piston Aluminum Piston Rod Extension SST Chrome Plated Cylinder Seal Bushings Brass O Rings Nitrile or Fluorocarbon Linkage Connections and Mounting Information See figures 7 8 9 and 10 Options E 376 Series trip valve system to fail actuator E up or WE down or W lock in last position E TopWorx DXP M21GNEB electrical valve stem position switch E Micro Switch limit switches 1 Normal m3 hr normal cubic meters per hour 0 C and 1 01325 bar absolute Scfh standard cubic feet per hour 60 F and 14 7 psia 2 These terms are defined in ANSI ISA Standard 51 1 3 Without snubber If this actuator has a snubber the temperature specification is the same for the nitrile version 4 The pressure limits in this bulletin and any applicable standard or code limitation for actuator
6. only 2 gt Duplicated on opposite side each hole is 5 16 inch 18 UNC 2B and tapped 13 mm 0 50 inches deep Product Bulletin 480 Series Actuators 61 2 480 D100091X012 February 2013 Figure 10 Dimensions for Actuators with Rotary Couplings 171 6 75 DIAMETER 3 8 INCH 16 UNC 2B 06 13 0 5 Ga a 146 5 75 2 gt 19 71 71 0 75 DIA HOLE 2 81 2 81 Baie D inches BK6785 B B0662 C gt Duplicated on opposite side each hole is 5 16 inch 18 UNC 2B and tapped 13 mm 0 50 inches deep 2 gt Socketed coupling with setscrew adjustment 6 mm 0 25 inch 10 mm 0 38 inch and 13 mm 0 50 inch inside diameters B gt Four holes total on 140 mm 5 5 inch bolt circle Product Bulletin 61 2 480 480 Series Actuators February 2013 D100091X012 Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any product remains solely with the purchaser and end user Fisher and TopWorx are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co Emerson Process Management Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners The contents of this publication are presented for infor
7. 480 Series Actuators D100091X012 Product Bulletin 61 2 480 February 2013 Fisher 480 Series Yokeless Piston Actuators Fisher 480 Series actuators are yokeless piston actuators that are used in either throttling or on off applications with ball valves butterfly valves louvers dampers and rheostats They require pneumatic pressure loading from double acting positioners Fisher 3570 or from on off loading and unloading devices Features Actuator Versatility Actuator with or without positioners and snubbers is available in an assortment of sizes stroking speeds thrusts and travels to handle most control requirements Compact Design Yokeless construction permits a low profile assembly by allowing close coupling to the control device either through a bracket or with some versions by direct mounting on a bonnet flange Wide Range Supply Pressure Capability The cylinder and 3570 positioner if used can operate with supply pressures as low as 2 4 bar 35 psig or as high as 10 3 bar 150 psig m Long Stroke Actuators have maximum rated travels of up to 206 mm 8 125 inches m Positioner Versatility Positioner actuator action is easily reversed in the field with no additional parts Positioner sensitivity travel span and travel starting point are factory set and need to be reset only if operating conditions have changed or if the positioner has been reversed See figure 1 W1867 Fisher 480 15 P
8. SCREW TRAVEL SPAN DETERMINES CORRECT BELLOWS BASE TRAVEL STARTING POINT BEAM BELLOWS POSTS BELLOWS BEAM BASE PEDESTAL PEDESTAL DIRECT ACTING POSITION _ REVERSE ACTING POSITION vz Ta W0701 1 fi ADJUSTMENTS REVERSAL Actu ator Co nfig u ratio ns These actuators may be obtained with the following alternate universal mounting flange constructions 480 Yokeless piston actuator with positioner 481 Yokeless piston actuator without positioner 15 Added to Type Number Allows butterfly valve Other actuators may be obtained without positioner mounting for a standard actuator with 105 mm 4 125 by adding 1 to the type number inch maximum travel and threaded piston rod connection and comes in sizes 30 through 60 The above actuators come with standard mounting flange 105 mm 4 125 inch maximum rated travel and threaded piston rod connection with sizes 30 16 Added to Type Number Provides 206 mm 8 125 through 60 for mounting on ball valves louvers and inch maximum travel and threaded piston rod dampers with brackets connection and comes in sizes 40 through 60 480 Series Actuators D100091X012 Figure 2 Supply Pressure and Thrusts Product Bulletin 61 2 480 February 2013
9. iston Actuator Actuator Frequency Response Figure 3 shows how various size actuators respond when the input supply pressure is cycled at small amplitude 3 to 5 percent and increasing frequency Assume the cycling supply pressure and the movement of the actuator rod are represented by sine waves As the actuator rod is forced to move faster its motion begins to fall behind the input in both time shown as phase lag and amplitude shown as normalized gain Both of these parameters are affected by the inertia of the actuator and consequently changes are more pronounced in the larger constructions a s EMERSON www Fisher com Process Management Product Bulletin 61 2 480 February 2013 480 Series Actuator Specifications 480 Series Actuators D100091X012 Available Configurations See the Actuator Configurations section Cylinder Pressure Maximum Allowable 4 10 3 bar 150 psig Required to Produce a Given Thrust See figure 2 Minimum Recommended Valves with low torque requirements 2 4 bar 35 psig all other valves 3 4 bar 50 psig Maximum Supply Source Consumption With Positioner and Constant Input Signal 0 54 normal m3 hr 20 scfh 1 of air at 6 9 bar 100 psig Without Positioner Depends on cylinder volume and supply pressure Travel Information Maximum Rated Travels All 480 Series actuators with Linear Output See table 1 Travel Stops Available for 480 Series actuators with
10. l from a controller or instrument is piped to the positioner bellows As long as the bellows receives a constant input signal pressure the beam remains motionless and allows supply pressure to bleed through both relay nozzles such that a constant pressure is maintained between the nozzle and the fixed orifice The relays are in equilibrium with their inlet and exhaust valves closed Product Bulletin 61 2 480 February 2013 Figure 4 Operation of Actuator with Positioner BELLOWS pea REVERSED FIXED RESTRICTION k e POSITION RANGE SPRIN i BIAS SPRING BEAM RELAY A E INSTRUMENT PRESSURE SUPPLY PRESSURE S220 TOP CYLINDER PRESSURE g BOTTOM CYLINDER PRESSURE E NOZZLE PRESSURE BJ8256 A A1286 Assume that a downward piston motion is required and the bellows receives a corresponding change in input signal pressure This causes the beam to pivot so that it covers the nozzle on relay A Beam movement is accomplished either by increasing the input signal pressure on a direct acting positioner to expand the bellows or by decreasing the input signal pressure on a reverse acting positioner to contract the bellows The nozzle pressure in relay A increases due to the restriction created by the beam over the nozzle Through relay action the air pressure to the top of the piston is increased At the same time relay B reacts to the change in beam position to decrease the pressure to the underside of the piston Due to the resu
11. lting unbalanced forces acting on the piston it moves down changing the valve plug position Piston movement is fed back to the beam by means of a range spring which is connected to the beam and to the piston rod extension applying a force to the beam opposite to that caused by the expanding or contracting bellows This feedback arrangement prevents overcorrection and ensures a definite position of the piston and valve plug for a given instrument signal 480 Series Actuators D100091X012 Figure 5 Operation of Actuator with Snubber SNUBBER POSITIONER CHECK VALVES DEVICE ZZA SUPPLY PRESSURE TOP CYLINDER PRESSURE BOTTOM CYLINDER PRESSURE E UPPER SNUBBER PRESSURE E LOWER SNUBBER PRESSURE 32A8303 A A1287 If upward piston motion is required the beam pivots over the nozzle on relay B The result is relay piston and feedback action opposite that for downward piston motion Reversal of positioner action is accomplished simply by removing four screws inverting the bellows and installing two bellows posts for support it the change is from direct to reverse action Bellows posts are stored in the positioner case and are not used if the change is from reverse to direct Actuator with Snubber As the actuator piston strokes the snubber piston moves inside an oil filled cylinder forcing oil from one side of the piston to the other through two check valves see figure 5 The resistance to flow crea
12. mational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability All sales are governed by our terms and conditions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management Marshalltown lowa 50158 USA Sorocaba 18087 Brazil Chatham Kent ME4 4QZ UK A Dubai United Arab Emirates lt gt Singapore 128461 Singapore www Fisher com EM ERSON Process M 20Wement 1991 2013 Fisher Controls International LLC All rights reserved Process Mana gement
13. ressure Connections Vent 3 8 NPT All Others 1 4 NPT Pressure Indications 3570C Tire valves accept standard pressure gauge chucks 3570 See table below pple Number Standard Gauge Range Type of Indication Used bar psig Positioner input signal 1 0 to 2 1 0 to 30 or gauge 0 to 4 1 0 to 60 Cylinder supply pressure 0 0 to 11 0 Oto 160 gauge Static Air Consumption 0 56 normal m3 hr 20 scfh with 6 9 bar 100 psig supply pressure Operative Ambient Temperature 1 2 With Nitrile O Rings 34 to 79 C 30 to 175 F With Fluorocarbon O Rings Optional 18 to 149 C 0 to 300 F Construction Materials Actuator Part Material Base Cover and Beam Aluminum die cast Bellows Brass Bias and Range Spring Steel Plated Relay Body Zinc Die Cast Relay Nozzle s SST Diaphragm Nitrile or Fluorocarbon O Rings Nitrile or Fluorocarbon Options Fisher SS 52 clip on chuck with or without gauge for 3570C positioners 1 These terms are defined in ANSI ISA Standard 51 1 2 For actuator with positioner only Does not apply to other constructions or actuator valve combination 3 Normal m3 hr normal cubic meters per hour 0 C and 1 01325 bar absolute Scfh standard cubic feet per hour 60 F and 14 7 psia Product Bulletin 61 2 480 480 Series Actuators February 2013 D100091X012 Table 1 Size Piston Stroking Speed and Travel Information
14. should not be exceeded 480 Series Actuators D100091X012 3570 Actuator Specifications Product Bulletin 61 2 480 February 2013 Available Configurations 3570 Valve positioner with two relays and three pressure gauges for monitoring input signal and output pressures to the top and underside of the actuator piston 3570C Similar to 3570 except that the positioner is equipped with automotive tire valves instead of pressure gauges The valves can be used for clip on test pressure gauges The relay nozzles on these positioners are locked in place with locknuts to resist unwanted nozzle movement due to vibration Input Signal Standard Ranges 0 2 to 1 0 bar 3 to 15 psig or 0 4 to 2 0 bar 6 to 30 psig Split Ranges Typically uses one half of standard range when two control valves are operated by one input signal from a single controller Optional Ranges As required within the limits of the bellows Bellows Pressure Rating Standard Bellows 3 4 bar 50 psig Optional Bellows 6 2 bar 90 psig Supply Pressure Maximum 10 3 bar 150 psig Minimum 2 4 bar 35 psig Output Signal Type Pneumatic pressure as required by the actuator Action Field reversible between direct and reverse see table 2 Hysteresis 1 2 0 15 of total stroke or instrument pressure span Resolution 1 2 0 2 of instrument pressure span Repeatability 12 0 3 of instrument pressure span Frequency Response 1 2 See figure 3 P
15. ted by the settings of the check valves and the shock absorbing quality of the oil combine to damp out any tendency of the valve plug to jump The plug of each check valve is held off its seat by the positioning of the adjusting screws Thus with the adjusting screws backed off all the way maximum damping will be obtained Installation The actuator may be installed in any position but normal installation is with the actuator vertical above the valve Dimensions are given in figures 6 7 8 9 and 10 480 Series Actuators D100091X012 Ordering Information When ordering specify 1 Type number a For actuator suffix dash numbers of desired constructions are appropriate b For positioner if used 2 Supply Pressure 3 Actuator size and connection size and style desired 4 Input signal range 5 Desired stroking time and direction if applicable Product Bulletin 61 2 480 February 2013 6 Operative ambient temperature 7 Travel 8 Desired options 9 Application requirements a Type body size port diameter stem connection size and the action of the valve to be used with the actuator b Valve inlet pressure c Valve shutoff pressure drop d Valve flowing pressure drop e Process fluid temperature Product Bulletin 61 2 480 February 2013 Table 3 Cylinder Diameter and Bolt Center Location All Actuators 480 Series Actuators D100091X012 ACTUATOR SIZE Cc H DEGREE OF ARC
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