Data Sheet

ManualsBrandsEmerson ManualsPneumatic ActuatorsEmerson Fisher 3025

www.Fisher.com

Fisherr 3025 Sizes P462, P460-200, and P900

Diaphragm Actuator

Fisher 3025 Size P460-200, P462 and P900 spring

opposed diaphragm actuators position the valve plug

in the valve body in response to varying controller or

valve positioner pneumatic output signals applied to

the actuator diaphragm. They can be specified as

either direct, e.g. air-to-close, or reverse acting e.g.

air-to-open(seefigure1).Theseactuatorsare

designed to provide dependable on-off or throttling

operation of automatic control valves.

ThesizeP462is available for travels up to 120 mm,

4.75 inches with air-to-open and air-to-close action.

ThesizeP460-200is available for travels up to 200

mm,8incheswithair-to-openandair-to-closeaction.

ThesizeP900is available for travels up to 120 mm,

4.75 inches with air-to-open and air-to-close action.

Features

 Long Travel Capability–Suitable for valves with

valve plug travels of up to 200 mm (8 inches).

 Application Versatility–Yoke boss mountings, travel

stops, and manual operators are available for nearly

any control valve requiring longer valve plug travels.

 Positive Connections–Split block stem connection

provides for a solid transfer of motion while

allowing easy mounting, and it includes no linkages

to create lost motion and inaccurate valve

positioning.

W9088-2

Fisher 3025 Actuator Air-to-Open Action

 Reversible Construction–Actuator action can be

easily changed on site without need of additional

parts.

 Long Service Life–Rugged steel construction

provides stability and corrosion protection.

3025 Actuator

D102789X012

Product Bulletin

61.1:3025

March 2012

Summary of content (12 pages)

PAGE 1
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Fisherr 3025 Sizes P462, P460-200, and P900 Diaphragm Actuator Fisher 3025 Size P460-200, P462 and P900 spring opposed diaphragm actuators position the valve plug in the valve body in response to varying controller or valve positioner pneumatic output signals applied to the actuator diaphragm. They can be specified as either direct, e.g. air-to-close, or reverse acting e.g. air-to-open (see figure 1).
PAGE 2
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Specifications Operating Pressure Range See tables 3 and 4 Maximum Travel Sizes P462 and P900: 120 mm (4.75 inches) Size P460-200: 200 mm (8 inches) Output Indication Stainless steel disc or pointer and graduated scale Stroking Speed Dependent on actuator size, travel, spring rate, initial spring compression, and supply pressure.
PAGE 3
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Figure 1.
PAGE 4
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Accessories Handwheels Instruments A geared handwheel is available for all sizes of the 3025 Actuator to manually position the valve plug. The valve is opened by turning the handwheel to the left and closed by turning to the right. See figure 2. Mounting parts exist for the following instruments (see table 1): Table 1.
PAGE 5
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Table 3. Fisher 3025 Air-to-Open Action (Spring Closes) Actuator Thrust Capabilities for Push-Down-to-Close Valves ACTUATOR SIZE P462 P460-200 P900 VALVE TRAVEL SPRING RANGE EFFECTIVE DIAPHRAGM AREA TOTAL THRUST WHEN VALVE CLOSED Valve Closed Valve Open mm Inches Bar Psig N lbs cm2 Inch2 cm2 Inch2 51 2 0.5 - 0.8 1.1 - 1.8 1.6 - 2.
PAGE 6
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Figure 2.
PAGE 7
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Table 5. Fisher 3025 Dimensions and Weights - Size P462 Actuator DIMENSION REFERENCE YOKE BOSS DIAMETER TRAVEL SPRING RANGE mm bar 51 All WEIGHT D E (w/o handwheel) 90 1305 1670 76 0.5 - 0.9 1.1 - 2.2 1.5 - 2.4 90 1370 1370 1600 1750 1750 1980 550 180 180 200 102 0.5 - 1.1 1.3 - 2.5 90 1405 1635 1970 2200 550 180 200 225 245 120 0.5 - 1.2 1.2 - 2.
PAGE 8
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Figure 3. Fisher 3025 Dimensions and Weights - Size P462 Actuator (see table 5) 580 (22.8) 580 (22.8) E E 315 (12.4) M D 400 (15.
PAGE 9
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Table 6. Fisher 3025 Dimensions and Weights - Size P460-200 Actuator DIMENSION REFERENCE TRAVEL YOKE BOSS DIAMETER 3-9/16, 5, and 5H(1) E (w/o handwheel) E (with handwheel) WEIGHT w/o handwheel mm with handwheel mm bar 127 0.6 - 1.2 0.8 - 1.9 1.5 - 2.8 1690 1690 1900 2510 2510 2720 220 235 280 320 335 380 152 0.6 - 1.3 0.8 - 2.1 1.5 - 3.0 1690 1690 1900 2510 2510 2720 220 235 280 320 335 380 165 0.6 - 1.4 0.8 - 2.2 1.
PAGE 10
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Figure 4. Fisher 3025 Dimensions and Weights - Size P460-200 Actuator (see table 6) 580 (22.8) 580 (22.8) E E 315 (12.4) 500 (19.7) 655 (25.8) 500 (19.7) D E0992 10 D 400 (15.
PAGE 11
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Table 7. Fisher 3025 Dimensions and Weights - Size P900 Actuator DIMENSION REFERENCE TRAVEL YOKE BOSS DIAMETER 5 and 5H(1) E (with handwheel) w/o handwheel 127 1845 2290 380 440 2290 2470 380 430 440 490 D with handwheel mm bar 51 1.1 - 1.9 76 1.1 - 2.3 1.7 - 2.8 127 1845 2020 102 1.2 - 2.4 1.7 - 3.1 127 2060 2280 2630 2845 430 480 490 550 120 1.2 - 2.6 1.7 - 3.
PAGE 12
Product Bulletin 3025 Actuator 61.1:3025 March 2012 D102789X012 Figure 5. Fisher 3025 Dimensions and Weights - Size P900 Actuator (see table 7) 580 (22.8) 580 (22.8) E E 315 (12.4) 610 (24) D E0993 D 400 (15.7) 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.