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Emerson 667 - page 1
www.Fisher.com Fisher r 667 Diaphragm Actuators Size 80 and 100 Contents Introduction 1 ................................. Scope of Manual 1 ............................. Description 2 ................................. Specifications 2 ............................... Maximum Pressure Limitations 3 ................. Installation 4 ................... ...
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Emerson 667 - page 2
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 2 Do not install, operate, or maintain 667 actuators without being fully trained and qualified in valve, actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to carefully read, understand, and follow all th ...
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Emerson 667 - page 3
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 3 Figure 2. Schematic Representation of Fisher 667 Actuator DIAPHRAGM AIR LIFTS SPRING PUSHES DOWN ACTUATOR STEM 667 REVERSE‐ACTING DIAPHRAGM ACTUATOR AF3833‐A A6127 Table 2. Maximum Pressure Limitations PRESSURE LIMITATIONS ACTUATOR SIZE 80 100 Standard Cast Iron Constructio ...
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Emerson 667 - page 4
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 4 Because the actuator has traveled its specified travel, and the diaphragm head is physically stopped from movement, the force from any additional air pressure is transmitted to the diaphragm and diaphragm casings. The amount of air pressure that can be added once the actuator h ...
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Emerson 667 - page 5
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 5 opening. If the valve is installed in a pipeline, the bottom flange (if one is used) can be removed and the valve plug pushed to the seat from the bottom opening. Reduce actuator loading pressure to extend the stem approximately 3.2 mm (1/8‐inch). CAUTION Incomplete engagemen ...
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Emerson 667 - page 6
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 6 When adjusting travel of a direct‐acting valve, put a slight pressure on the actuator diaphragm. This moves the valve plug off the seat, reducing the chance of damaging the valve plug or seat during adjustments. 1. Back the stem jam nuts (key 69, figures 6 and 7) away from th ...
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Emerson 667 - page 7
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 7 Remove the shroud plate (key 65, figure 7), and loosen the jam nut (key 26, figure 7). For small spring forces, adjustments can be made by rotating the adjusting nut (key 25, figure 7). Counterclockwise rotation (when viewed from the diaphragm casings) of the adjusting nut will ...
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Emerson 667 - page 8
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 8 D Do not remove the actuator from the valve while the valve is still pressurized. D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury. D Disconnect any operating lines providing air pressure, electr ...
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Emerson 667 - page 9
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 9 actuator. Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment. 2. Remove the tubing or piping from the connection in the top of the spring case adaptor (key 89). 3. If the actuator has a handwheel, rotate the handwheel to ...
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Emerson 667 - page 10
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 10 b. Using a wrench on the wrench flats near the top of the stem and piston assembly, unscrew the stem and piston assembly from the actuator stem. c. Unscrew the cap screws (key 106), and remove the cylinder (key 93) and attached parts. 11. To disassemble snubber: a. Remove the ...
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Emerson 667 - page 11
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 11 Figure 4. Size 80 Actuator Construction CAP SCREW (KEY 12) SPACER (KEY 2) UPPER DIAPHRAGM CASE (KEY 1) DIAPHRAGM (KEY 3) LOWER DIAPHRAGM PLATE (KEY 71) CAP SCREW (KEY 30) GASKET (KEY 70) TRAVEL STOP (KEY 84) SEAL BUSHING (KEY 7) VENT ASSEMBLY (KEY 17) UPPER DIAPHRAGM PLATE (KE ...
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Emerson 667 - page 12
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 12 10. Position the upper diaphragm casing (key 1) on the diaphragm (key 3), and align the holes. Note When you replace actuator diaphragms in the field, take care to ensure the diaphragm casing cap screws are tightened to the proper load to prevent leakage, but do not crush the ...
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Emerson 667 - page 13
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 13 D Do not remove the actuator from the valve while the valve is still pressurized. D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury. D Disconnect any operating lines providing air pressure, elect ...
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Emerson 667 - page 14
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 14 Figure 5. Size 100 Actuator Construction DIAPHRAGM CASING COVER (KEY 15) UPPER DIAPHRAGM PLATE (KEY 4) UPPER DIAPHRAGM CASING (KEY 1) DIAPHRAGM (KEY 3) CAP SCREW (KEY 13) BACK UP PLATE (KEY 6) HEX NUT (KEY 14) DIAPHRAGM RETAINER (KEY 5) LOWER DIAPHRAGM CASING ASSEMBLY (KEY 67) ...
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Emerson 667 - page 15
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 15 For Actuators Without the Top‐Loaded Option Disassembly Part names and locations are shown in figure 5. Size 100 actuator key number locations are shown in figure 7. 1. Unscrew the diaphragm casing cap screws and nuts (keys 13 and 14) and remove the upper diaphragm casing. 2 ...
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Emerson 667 - page 16
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 16 6. Install the diaphragm backup plate, diaphragm retainer, diaphragm, upper diaphragm plate, and washer (keys 6, 5, 3, 4, and 37) on the actuator stem (key 144). CAUTION Install the diaphragm with the fabric side facing away from the spring. Smooth the edge of the diaphragm to ...
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Emerson 667 - page 17
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 17 15. Once completed, no more tightening is recommended. 16. For actuators with a top‐mounted handwheel (see figure 9), mount the gear case assembly (key 41) on the actuator using the cap screws (key 16). Install the hex nuts (key 47) and travel stop cap screw (if used) on the ...
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Emerson 667 - page 18
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 18 3. Install the actuator stem assembly into the yoke assembly (key 67). Place a support under the stem to position the lower end of the stem 254 mm (10 inches) above the bottom surface of the actuator (actuator‐to‐bonnet joint). Note When installing the lower diaphragm casi ...
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Emerson 667 - page 19
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 19 8. Tighten the cap screws (key 13) in the following manner. The first four cap screws tightened should be diametrically opposed and 90 degrees apart. Tighten these four cap screws to 34 N S m (25 lbf S ft). 9. Tighten the remaining cap screws in a clockwise, crisscross pattern ...
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Emerson 667 - page 20
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 20 24. Once completed, no more tightening is recommended. 25. For actuators with a top‐mounted handwheel (see figure 9), mount the gear case assembly (key 41) on the actuator using cap screws (key 16). Install the hex nuts (key 47) and travel stop cap screw (if used) on the act ...
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Emerson 667 - page 21
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 21 7. The lower sleeve (key 123) has two screw holes in one end. Coat the sleeve threads with lithium grease lubricant, slide the end of the lower sleeve with the holes into the thrust bearing (key 43), turn the handwheel, and feed the sleeve through the worm gear. Continue turni ...
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Emerson 667 - page 22
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 22 5. Remove the retaining ring (key 60), and remove the handwheel. 6. Remove front and back worm retainers (keys 48 and 49) and the bearings (key 50). 7. Remove the worm shaft (key 51). 8. Remove the power screw assembly (key 46) by placing a wrench on the double hex nuts (key 4 ...
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Emerson 667 - page 23
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 23 Parts Kits Actuator Repair Kit Parts kit includes keys 8, 9, and 70. Key Description Part Number Size 80 R667X000802 Parts List Note Part numbers are shown for recommended spares only. For part numbers not shown, contact your Emerson Process Management sales office. Actuator K ...
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Emerson 667 - page 24
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 24 Key 18 Spring, steel ACTUATOR SIZE RANGE TRAVEL COMPRESSION RATE MAXIMUM LOAD PART NUMBER COLOR CODE bar psi mm Inches N/mm Lb/in N Lb 80 0.2‐1 3‐15 76 3 175.1 1000 25,042 5630 1H747727082 Red 0.2‐1 3‐15 51 2 288.9 1650 35,139 7900 1H747527082 Lt. Blue 0.3‐1.7 5‐25 ...
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Emerson 667 - page 25
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 25 Figure 6. Size 80 Fisher 667 Actuator NOTE: KEYS 243, 244, 245, AND 246 ARE NOT SHOWN. 50A8597‐D 50A8599‐C APPL Y LUB/SEALANT TOP‐LOADED ACTUATOR DETAIL Hydraulic Snubber Size 80 Key Description Part Number 23 Stem & Piston Assembly 93 Cylinder 94 Cylinder H ...
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Emerson 667 - page 26
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 26 Figure 7. Size 100 Fisher 667 Actuator NOTES: THIS PART IS LOCATED 90 _ TO FRONT OF POSITION SHOWN 2. KEYS 243 AND 244 ARE NOT SHOWN 1 APPL Y LUB 50A2623‐F 56A9820‐B TOP‐LOADED ACTUATOR DETAIL ...
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Emerson 667 - page 27
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 27 Figure 8. Size 80 Fisher 667 Actuator with Side‐Mounted Handwheel and Hydraulic Snubber VIEW A SECTION B‐B B B VIEW A APPL Y LUB/SEALANT 50A8759‐C ...
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Emerson 667 - page 28
Instruction Manual D100311X012 667 Size 80 and 100 Actuators May 2011 28 Figure 9. Size 100 Top‐Mounted Handwheel APPL Y LUB 50A2624‐F Emerson Process Management Marshalltown, Iowa 50158 USA Sorocaba, 18087 Brazil Chatham, Kent ME4 4QZ UK Dubai, United Arab Emirates Singapore 128461 Singapore www.Fisher.com The contents of this publication are ...
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