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Emerson Fisher 667 Instruction Manual

Diaphragm actuator sizes 30/30i-76/76i and 87
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Instruction Manual
D100310X012
Fisher
667 Diaphragm Actuator
™
Sizes 30/30i-76/76i and 87
Contents
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Side-Mounted Handwheel for Sizes 34/34i
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Introduction

Scope of Manual

This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the
Fisher 667 actuator in sizes 30/30i through 76/76i and size 87. The 667-4 actuator in sizes 70/70i and 87 is also
covered. Refer to separate instruction manuals for information about the valve positioner and other accessories used
with these actuators.
Do not install, operate, or maintain a 667 actuator (see figure 1) 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 the contents of this manual, including all safety cautions and
warnings. If you have any questions about these instructions, contact your
Partner before proceeding.
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667 Actuator (Size 30/30i - 76/76i and 87)
Figure 1. Fisher 667 Actuator Mounted on easy-e™
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Table of Contents
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Related Manuals for Emerson Fisher 667

Summary of Contents for Emerson Fisher 667

  • Page 1: Table Of Contents

    This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the Fisher 667 actuator in sizes 30/30i through 76/76i and size 87. The 667‐4 actuator in sizes 70/70i and 87 is also covered. Refer to separate instruction manuals for information about the valve positioner and other accessories used with these actuators.

  • Page 2: Description

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Table 1. Specifications ACTUATOR SIZE SPECIFICATION 30/30i 34/34i 40/40i 45/45i 46/46i 50/50i 60/60i 70/70i 76/76i Sq cm 1006 1006 1419 1006 1419 Nominal Effective Area Sq Inch Yoke Boss Diameter Inch 2‐1/8...

  • Page 3: Specifications

    Refer to table 1 for Specifications of the 667 and 667‐4 actuators. See the actuator nameplate for specific information for your actuator. Educational Services For information on available courses for Fisher 667 diaphragm actuators, as well as a variety of other products, contact: Emerson Automation Solutions...

  • Page 4: Maximum Pressure Limitations

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 WARNING To avoid personal injury or damage to equipment that may result in the malfunction of the control valve or loss of control of the process caused by excessive pressure, do not exceed the Maximum Pressures listed in table 1. Refer to the Maximum Pressure Limitations section.

  • Page 5: Mounting The Actuator On The Valve

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 D Valve/Actuator Assembly: If the actuator and valve are shipped together as a control valve assembly, it has been adjusted at the factory, and may be installed in the pipeline. After installing the valve in the pipeline, refer to the Loading Connection procedures.
  • Page 6 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 b. For all other size actuators: D Slowly lower the actuator down onto the valve. As the yoke passes over the end of the valve stem, place the yoke locknut over the valve stem.

  • Page 7: Discussion Of Bench Set

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Discussion of Bench Set The bench set pressure values are used to adjust the initial compression of the actuator spring with the valve‐actuator assembly “on the bench.” The correct initial compression ensures that the valve‐actuator assembly will function properly when it is put into service and the proper actuator diaphragm operating pressure is applied.
  • Page 8 10. If the measured travel is not exact, consider the spring free‐length and spring rate tolerances may produce a slightly different bench set than specified. Contact your Emerson Automation Solutions sales office for assistance. For Push Down to Open (Reverse Acting) Valves 1.

  • Page 9: Installing The Stem Connector Assembly

    Connector Assembly subsection. 9. If the measured travel is not exact, consider the spring free‐length and spring rate tolerances may produce a slightly different bench set than specified. Contact your Emerson Automation Solutions sales office for assistance. Installing the Stem Connector Assembly When installing the stem connector assembly (key 31), the actuator and valve stem threads should engage the threads of the stem connector by a distance equal to the diameter of the stem.

  • Page 10: Friction Discussion

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 1. If necessary, push the valve stem down so that the valve plug is touching the seat ring on direct‐acting valves. For reverse‐acting valves, pull the stem up to the closed position. Always start with the valve plug on the seat. 2.

  • Page 11: Deadband Measurement

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 2. Increase the actuator diaphragm pressure and read the diaphragm pressure as the actuator reaches a travel position in the rated travel of the valve that does not contact a travel stop. Make a reference mark on the travel indicator scale using tape or some other method at this point.

  • Page 12: Loading Connection

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 deadband being too wide are no movement, a “jump” movement, or oscillating movements of the actuator during automatic loop control. The following steps are provided to determine the span of deadband. The percent of deadband is helpful in troubleshooting problems with the process control loop.

  • Page 13: Actuator

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 D Vent the power actuator loading pressure and relieve any actuator spring pre‐compression. D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment. D The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the pipeline.
  • Page 14 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 6. Remove the following connected parts: the diaphragm (key 3), upper diaphragm plate (key 4), spacer (key 2), cap screw (key 12), lower diaphragm plate (key 71), and actuator stem (key 144). Be careful when pulling the threads of the actuator stem through the seal bushing (key 7) to avoid damaging the O‐rings (key 8).

  • Page 15: Top-Mounted Handwheel Assembly (Adjustable Down Travel Stop)

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 (key 237). Tighten the cap screw (key 12) to the appropriate torque as shown in table 2. Place this assembly in the actuator. Take care when pushing the actuator stem through the seal bushing so that the threads do not damage the O‐rings.
  • Page 16 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 A top‐mounted handwheel assembly (figures 11, 12, 13, 14, and 15) is usually used as an adjustable down travel stop to limit full extension of the actuator stem. Turning the handwheel counterclockwise pulls the extension rod (key 150, figures 11, 13, and 14) up, retracting the actuator stem.
  • Page 17 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 6. For size 70/70i and 87 actuator handwheels (figures 14 and 15): D Remove the cap (key 247). Take out the cotter pin (key 167) and remove the castle nut, the bearing retainer, and thrust bearing (keys 166, 182, 181, and 180).
  • Page 18 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 6. The first four bolts tightened should be diametrically opposed and 90 degrees apart. Tighten these four bolts to 13 NSm (10 lbfSft). 7. Tighten the remaining bolts in a clockwise, criss‐cross pattern to 13 NSm (10 lbfSft). 8.

  • Page 19: Through 60/60I Actuators

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 5. Slide the extension rod (key 150) into the handwheel screw (key 160), and position the diaphragm casing (key 1, figures 6, 7, 8, 9, and 10) with the attached parts on the diaphragm. Install the cap screws and hex nuts (keys 13 and 14, figures 6, 7, 8, 9, and 10) and tighten in the following manner.
  • Page 20 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 7. Pull the handwheel screw assembly (key 145) out of the handwheel body. The operating nut (key 132) will come out with the screw. Also remove the bushing (key 151, figure 16 or 17) on size 34 and 40. 8.

  • Page 21: Side-Mounted Handwheel Assembly For Size 70, 76, And 87 Actuators

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Side‐Mounted Handwheel Assembly for Size 70, 76, and 87 Actuators A side‐mounted handwheel assembly (figure 20) is usually used as a manual actuator. Turning the handwheel clockwise past the neutral position always closes the valve body. A sleeve (key 123, figure 20) on a handwheel assembly for a size 70, 76 or 87 actuator opens the valve body by moving the valve stem.
  • Page 22 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 6. Pack the two needle bearings (key 132) and coat the worm gear (key 44) threads with anti‐seize lubricant (key 239). Insert the key (key 122), the bearings, and the worm gear in the yoke (key 73) as shown in figure 20. 7.

  • Page 23: Casing-Mounted Travel Stops

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 19. The first four bolts tightened should be diametrically opposed and 90 degrees apart. Tighten these four bolts to 13 NSm (10 lbfSft). 20. Tighten the remaining bolts in a clockwise, criss‐cross pattern to 13 NSm (10 lbfSft). 21.

  • Page 24: Parts Kits

    List sections. WARNING Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions should not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the performance of the valve, and could cause personal injury and property damage.

  • Page 25: Top-Mounted Handwheel Retrofit Kits

    Screw, Mach, Flat Hd Screw, Mach, Rd Hd Indicator, Travel, Adaptor Washer, Plain Note Spring Case Adaptor Contact your Emerson sales office or Local Business Partner for Part Screw, Cap Ordering information. Plug, Pipe, Hex Hd Actuator Stem Washer, Plain...

  • Page 26: Top-Mounted Handwheel

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Top‐Mounted Handwheel Lock Nut Handwheel Screw (figures 11, 12, 13, 14, and 15) Cap Screw Castle Nut Cotter Pin Description Machine Screw Handwheel / Handjack Bar Lockwasher Retainer Ring Thrust Bearing Handwheel Body...
  • Page 27 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Figure 6. Fisher 667 Actuator Sizes 30 through 60 50A8379-C...
  • Page 28 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Figure 7. Fisher 667 Actuator Sizes 30i through 60i APPLY LUB PARTS NOT SHOWN: KEY 76 AND 254 GE71547-A...
  • Page 29 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Figure 8. Fisher 667 Size 70 and 76 Actuator APPLY LUBRICANT 50A8598‐E...
  • Page 30 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Figure 9. Fisher 667 Size 70i and 76i Actuator APPLY LUB GE71630-A PARTS NOT SHOWN: KEY 76 AND 254...
  • Page 31 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Figure 10. Fisher 667 Size 87 Actuator APPLY LUBRICANT 50A8600‐E...
  • Page 32 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Figure 11. Top‐Mounted Handwheel Assembly for Size 30/30i through 40/40i Actuators APPLY LUBRICANT NOTE: THE TOP MOUNTED HANDWHEEL IS NOT DESIGNED FOR USE UNDER HEAVY LOAD OR FREQUENT USE. 30B3940‐C Figure 12.
  • Page 33 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Figure 13. Top‐Mounted Handwheel Assembly for Size 45/45i‐76/76i Actuators APPLY LUBRICANT 33B9224‐B...
  • Page 34 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Figure 14. Top‐Mounted Handwheel Assembly for Size 70/70i and 87 Actuators CV8060‐J APPLY LUBRICANT Figure 15. Top-Mounted Handjack Bar Assembly for Size 70/70i and 87 Actuators APPLY LUBRICANT GE61626-A NOTE: THE TOP MOUNTED HANDJACK BAR SHOULD BE REMOVED WHEN NOT IN USE AND THE HANDWHEEL CAP INSTALLED FOR WEATHER PROTECTION OF INTERNAL COMPONENTS.
  • Page 35 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Figure 16. Side Mounted Handwheel Assembly for Size 34 and 40 Actuators APPLY LUBRICANT 30A8778‐D Figure 17. Side Mounted Handwheel Assembly for Size 34i and 40i Actuators PARTS NOT SHOWN: KEY 157, 158, 159, and 168 APPLY LUBRICANT GE71635-A...
  • Page 36 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Figure 18. Side‐Mounted Handwheel Assembly for Size 45 through 60 Actuators APPLY LUBRICANT 40A8779‐D Figure 19. Side Mounted Handwheel Assembly for Size 45i through 60i Actuators PARTS NOT SHOWN: KEY 158, 159, and 168 APPLY LUBRICANT GE71636-A...

  • Page 37: Side-Mounted Handwheel (34/34I-60/60I)

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Side‐Mounted Handwheel, Side‐Mounted Handwheel, Size 34‐60 and 34i-60i Size 70, 76 and 87 (figure 20) (figures 16 and 18) Description Description Handgrip Handgrip Bolt Handwheel Worm Gear Hex Jam Nut Bearing Retainer Flange Ball...
  • Page 38 Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) June 2017 D100310X012 Figure 20. Size 70, 76, and 87 Actuator with Side Mounted Handwheel Assembly PART NOT SHOWN: 57 APPLY LUBRICANT E0871...

  • Page 39: Casing Mounted Travel Stops

    Instruction Manual 667 Actuator (Size 30/30i - 76/76i and 87) D100310X012 June 2017 Casing‐Mounted Travel Stops Description Screw, Cap, Hex Hd (figures 21 through 25) Washer Vent Description Guide Plate Mounting Plate Handwheel Nut, Travel Stop Plug, Pipe Screw, Handwheel Hex Nut Screw, Cap, Hex Hd Travel Stop Body...
  • Page 40 Fisher and easy-e are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.

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