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Fisher 480 Series Yokeless Piston Actuators - emerson.com

Product Bulletin 480 Series Actuators :480. D100091X012 April 2018. 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 n 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. W1867. n Compact Design Yokeless construction permits a Fisher 480-15 Piston actuator 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. n Wide Range Supply Pressure Capability The actuator Frequency cylinder (and 3570 positioner if used) can operate with supply pressures as low as bar (35 psig) or Response as high as bar (150 psig).

www.Fisher.com Fisher™ 480 Series Yokeless Piston Actuators Fisher 480 Series actuators are yokeless piston actuators that are used in either throttling or on …

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Transcription of Fisher 480 Series Yokeless Piston Actuators - emerson.com

1 Product Bulletin 480 Series Actuators :480. D100091X012 April 2018. 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 n 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. W1867. n Compact Design Yokeless construction permits a Fisher 480-15 Piston actuator 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. n Wide Range Supply Pressure Capability The actuator Frequency cylinder (and 3570 positioner if used) can operate with supply pressures as low as bar (35 psig) or Response as high as bar (150 psig).

2 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. n Long Stroke Actuators have maximum rated travels of up to 206 mm ( inches). 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 n Positioner Versatility Positioner/ actuator action is motion begins to fall behind the input in both time easily reversed in the field with no additional parts. (shown as phase lag) and amplitude (shown as Positioner sensitivity, travel span, and travel starting normalized gain). Both of these parameters are point are factory set and need to be reset only if affected by the inertia of the actuator and, operating conditions have changed or if the consequently, changes are more pronounced in the positioner has been reversed.

3 See figure 1. larger constructions. Product Bulletin :480 480 Series Actuators April 2018 D100091X012. 480 Series actuator Specifications Available Configurations Operative Ambient Temperature(2). See the actuator Configurations section With Nitrile O-Rings: -46 to 80_C (-50 to 175_F). With Fluorocarbon O-Rings (Optional):(3). Cylinder Pressure -18 to 149_C (0 to 300_F). Maximum Allowable:(4) bar (150 psig). Required to Produce a Given Thrust: See figure 2 actuator Size and Piston Size Minimum Recommended: Valves with low torque requirements - ( bar [35 psig]); all other valves - See table 1. ( bar [50 psig]). Pressure Connections Maximum Supply Source Consumption Standard is 1/4 NPT. For larger sizes, contact your With Positioner and Constant Input Signal: Emerson sales office or Local Business Partner. normal m3/hr(1) (20 scfh(1)) of air at bar (100 psig). Without Positioner: Depends on cylinder volume and Construction Materials supply pressure actuator : Travel Information Part Material Maximum Rated Travels, All 480 Series Actuators with Cylinder and Piston Aluminum Linear Output: See table 1.

4 Piston Rod Extension SST, Chrome Plated Travel Stops Available for 480 Series Actuators with Cylinder Seal Bushings Brass 105 mm ( inch ) Maximum Rated Travels: See O-Rings Nitrile or Fluorocarbon table 1. Thrust Information Linkage Connections and Mounting Information See figure 2. See figures 7, 8, 9, and 10. Torque Output 480, 480-15, and 480-16 (for butterfly valves): Options Contact your Emerson sales office or Local Business J 376 Series trip valve system to fail actuator Partner J up or J down or J lock in last position J TopWorx DXP M21 GNEB electrical valve stem Stroking Speeds position switch See table 1 J Micro-Switch limit switches 1. Normal m3 normal cubic meters per hour (0_C and bar, absolute); Scfh - standard cubic feet per hour (60_F and psia). 2. These terms are defined in ANSI/ISA Standard 3. Without snubber. If this actuator has a snubber, the temperature specification is the same for the nitrile version.

5 4. The pressure limits in this bulletin and any applicable standard or code limitation for actuator should not be exceeded. 2. Product Bulletin 480 Series Actuators :480. D100091X012 April 2018. 3570 actuator Specifications Available Configurations Frequency Response(1,2). 3570: Valve positioner with two relays and three See figure 3. pressure gauges for monitoring input signal and output pressures to the top and underside of the Pressure Connections actuator Piston Vent: 3/8 NPT. 3570C: Similar to 3570 except that the positioner is All Others: 1/4 NPT. equipped with automotive tire valves instead of pressure gauges. The valves can be used for clip-on Pressure Indications test pressure gauges. The relay nozzles on these positioners are locked in place with locknuts to resist 3570C: Tire valves accept standard pressure gauge unwanted nozzle movement due to vibration chucks 3570: See table below Input Signal Number Standard Gauge Range Type of Indication Standard Ranges: to bar (3 to 15 psig) or Used bar (psig).

6 To bar (6 to 30 psig) Positioner input signal 1. 0 to (0 to 30) or Split Ranges: Typically uses one half of standard range gauge 0 to (0 to 60). when two control valves are operated by one input Cylinder supply pressure 0 0 to (0 to 160). gauge signal from a single controller Optional Ranges: As required within the limits of the bellows Static Air Consumption(3). Bellows Pressure Rating normal m3/hr (20 scfh) with bar (100 psig). supply pressure Standard Bellows: bar (50 psig). Optional Bellows: bar (90 psig) Operative Ambient Temperature(1,2). Supply Pressure With Nitrile O-Rings: -34 to 79_C (-30 to 175_F). With Fluorocarbon O-Rings (Optional):(3) -18 to Maximum: bar (150 psig) 149_C (0 to 300_F). Minimum: bar (35 psig). Construction Materials Output Signal actuator : Type: Pneumatic pressure as required by the actuator Action: Field reversible between direct and reverse Part Material (see table 2) Base, Cover and Beam Aluminum, die cast Bellows Brass Hysteresis(1,2) Bias and Range Spring Steel, Plated Relay Body Zinc, Die Cast of total stroke or instrument pressure span Relay Nozzle(s) SST.

7 Diaphragm Nitrile or Fluorocarbon Resolution(1,2) O-Rings Nitrile or Fluorocarbon of instrument pressure span Options Repeatability(1,2) Fisher SS-52 clip-on chuck (with or without gauge) for of instrument pressure span 3570C positioners 1. These terms are defined in ANSI/ISA Standard 2. For actuator with positioner only. Does not apply to other constructions or actuator -valve combination. 3. Normal m3 normal cubic meters per hour (0_C and bar, absolute); Scfh - standard cubic feet per hour (60_F and psia). 3. Product Bulletin :480 480 Series Actuators April 2018 D100091X012. Table 1. Size, Piston , Stroking Speed, and Travel Information SINGLE-FLANGE TRAVEL STOPS AVAILABLE FOR. EFFECTIVE Piston STROKING Actuators WITH 105 mm actuator Piston AREA DIAMETER SPEED(1) All Others Except Fisher 487, ( INCHES) MAXIMUM. SIZE 16 Versions (2). 487-1 RATED TRAVEL. cm2 Inch2 mm Inch mm/s Inch/s mm Inch mm Inch mm Inch 30 107 121 102 4 --- --- 105 89 40 182 156 52 206 105 89 60 258 216 33 1.

8 For Actuators with positioners at 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 Direct-acting Increasing input signal pressure to bellows(1) Decreasing input signal pressure to bellows(1). With Positioner Reverse-acting Decreasing input signal pressure to bellows(1) Increasing input signal pressure to bellows(1). 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.

9 RANGE SPRING BIAS SPRING REMOVAL OF FOUR SCREWS. DETERMINES ADJUSTING SCREW. TRAVEL SPAN DETERMINES CORRECT. TRAVEL STARTING POINT BELLOWS. BASE. BEAM BELLOWS. POSTS BEAM. BELLOWS. BASE PEDESTAL PEDESTAL. DIRECT-ACTING POSITION REVERSE-ACTING POSITION. AJ1880-A. A1283-1. W0701-1*. ADJUSTMENTS REVERSAL. actuator Configurations 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 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 ( inch) maximum rated travel, and threaded Piston rod connection with sizes 30 -16 Added to Type Number: Provides 206 mm through 60 for mounting on ball valves, louvers, and ( inch) maximum travel and threaded Piston rod dampers with brackets.

10 Connection, and comes in sizes 40 through 60. 4. Product Bulletin 480 Series Actuators :480. D100091X012 April 2018. Figure 2. Supply Pressure and Thrusts SIZE 30. actuator SIZE 40. actuator . SIZE 60. actuator . Thrusts in thousands of pounds (in thousands of newtons). A5961 for Actuators with positioners. 1. Note: 1 May be increased by 10% for Actuators without positioners. Either this thrust, or the maximum allowable loading for the control device is the limiting factor for usable actuator force. Figure 3. Frequency Response 1. SIZE 30- 19mm ( INCH) TRAVEL. 2. SIZE 40- 38mm ( INCH) TRAVEL. 3. SIZE 60- 38mm ( INCH) TRAVEL. A5962 FREQUENCY - HERTZ. Principle of Operation positioner. However, a separate loading device must be provided for Actuators without positioners. For Actuators with positioners (figure 4), the actuator pneumatic output signal from a controller or instrument is piped to the positioner bellows.


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