Emerson Fisher 480 Series Скачать руководство пользователя страница 11 | Manualshive

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Instruction Manual

D100291X012

480 Series Actuators

August 2012

11

Figure 8. Fisher 481 Piston Actuator - Size 30- 60

40A9538-A

PARTS NOT SHOWN: 27, 78, 79, AND 112

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Содержание Fisher 480 Series

Страница 1: ...llation operation and maintenance To avoid personal injury or property damage it is important to carefully read understand and follow all the contents of this manual including all safety cautions and warnings If you have any questions about these instructions contact your Emerson Process Management sales office before proceeding Description 480 Series actuators figure 1 are yokeless piston actuato...

Страница 2: ... Material Cylinder and Piston Aluminum Piston Rod Extension SST Chrome Plated Cylinder Seal Bushings Brass O Rings Nitrile or Fluorocarbon Options J 376 Series trip valve system to fail actuator J up or J down or J lock in last position J TopWorxt DXP M21GNEB electrical valve stem position switch J Micro Switch limit switches 1 Normal m3 hr normal cubic meters per hour 0_C and 1 01325 bar absolute...

Страница 3: ... 4 Hysteresis 1 2 0 15 of total stroke or instrument pressure span Resolution 1 2 0 2 of instrument pressure span Repeatability 1 2 0 3 of instrument pressure span Frequency Response 1 2 See figure 3 Pressure Connections Vent 3 8 NPT All Others 1 4 NPT Pressure Indications 3570C Tire valves accept standard pressure gauge chucks 3570 See table below Type of Indication Number Used Standard Gauge Ran...

Страница 4: ...piston actuator with positioner 481 Yokeless piston actuator without positioner Other actuators may be obtained without positioner by adding 1 to the type number The above actuators come with standard mounting flange 105 mm 4 125 inch maximum rated travel and threaded piston rod connection with sizes 30 through 60 for mounting on ball valves louvers and dampers with brackets These actuators may be...

Страница 5: ...for overpressure protection as required by accepted industry or local state and Federal codes and good engineering practices Check with your process or safety engineer for any additional measures that must be taken to protect against process media If installing into an existing application also refer to the WARNING at the beginning of the Maintenance section in this instruction manual Inspect this...

Страница 6: ...Location All Actuators ACTUATOR SIZE C H DEGREE OF ARC 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 Operation of Actuator with Snubber 32A8303 A A1287 SNUBBER POSITIONER OR SWITCH ING DEVICE SUPPLY PRESSURE TOP CYLINDER PRESSURE BOTTOM CYLINDER PRESSURE UPPER SNUBBER PRESSURE LOWER SNUBBER PRESSURE CHECK VALVES Principle of Oper...

Страница 7: ...ures a definite position of the piston and valve plug for a given instrument signal 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 th...

Страница 8: ...onnect any operating lines providing air pressure or a control signal to the actuator Be sure the actuator cannot suddenly open or close the valve D Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure on both sides of the valve Drain the process media from both sides of the valve D Use lock out procedures to be sure that the abov...

Страница 9: ...vis and the boot locknut from the actuator piston rod 7 Remove the nuts that hold the cylinder to the mounting flange and lift off the cylinder 8 Remove the stud bolts key 123 that hold the cylinder to the cylinder flange Two slots 180 degrees apart are located at the lower edge of the cylinder Insert a screwdriver in these slots and pry the cylinder loose The piston and piston rod will come out w...

Страница 10: ...Instruction Manual D100291X012 480 Series Actuators August 2012 10 Figure 7 Fisher 480 Piston Actuator Size 30 60 40A9540 A PARTS NOT SHOWN 27 AND 112 ...

Страница 11: ...Instruction Manual D100291X012 480 Series Actuators August 2012 11 Figure 8 Fisher 481 Piston Actuator Size 30 60 40A9538 A PARTS NOT SHOWN 27 78 79 AND 112 ...

Страница 12: ...rew 24 Piston Rod Boot Sizes 30 40 and 60 1H93790699 25 Top Boot Snap Ring 26 Bottom Boot Snap Ring 27 Travel stop 30 Piston Nut 31 Positioner 45 Spring Retainer Spacer 78 Cover Seal 481 only 1C85380699 79 Cover Screw 160 Pipe Plug Recommended spare parts Emerson Process Management Marshalltown Iowa 50158 USA Sorocaba 18087 Brazil Chatham Kent ME4 4QZ UK Dubai United Arab Emirates Singapore 128461...

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