Fisher 655R User's Manual
Contents
1. PRESSURE PRESSURE PRESSURE PRESSURE tha SPRING PART __ REDUCTION RELER pigs SPRING PART REDUCTION lt a RELIER SIZE NUMBER Minimum Maximum Minimum Maximum SIZE NUMBER Minimum Maximum Minimum Maximum Bar Psig Bar Psig Bar Psig Bar Psig Bar Psig Bar Psig Bar Psig Bar Psig 1E792427082 5 4 78 12 0 174 4 5 65 10 1 146 4A 1E793327082 0 9 13 1 9 28 0 8 11 1 6 23 1F714327092 3 0 44 9 3 135 3 0 43 8 2 119 1E795427082 0 8 11 1 6 23 06 9 0 1 3 19 3A 4A 1F 176927092 2 2 32 6 6 96 2 6 37 5 9 85 1E792427082 0 6 9 0 1 4 20 0 5 7 0 1 1 16 1F 176827092 1 8 26 5 4 78 2 3 34 5 2 75 1F714327092 0 3 5 0 1 1 16 0 3 5 0 0 9 13 1F176727032 1 3 19 4 1 59 1 4 20 3 9 57 Set 1F176927092 0 3 3 8 0 8 11 0 3 4 0 0 7 10 1E793327082 3 4 50 7 4 107 3 0 43 4 4 64 1F176827092 0 2 2 8 0 6 8 5 0 1 2 0 0 6 8 5 1E795427082 2 9 42 6 3 92 2 4 35 4 4 64 1E793327082 0 6 8 3 1 2 18 0 5 7 0 0 8 11 1E793327082 3 4 50 7 4 107 3 0 43 6 1 89 3 1E795427082 0 5 7 0 1 0 15 0 4 5 5 0 8 11 4 1E795427082 2 9 42 6 3 92 2 4 35 5 3 77 1E793327082 0 6 8 3 1 2 18 0 5 7 0 1 0 15 1E792427082 22. ACTUATOR MAXIMUM CASING PRESSURE SIZE Bar Psig 3A 4A 17 2 250 3B 4B 12 1 175 32 42 6 9 100 33 43 4 5 65 34 44 3 1 45 35 45 2 1 30 36 46 1 0 15 Actuator Pressure Setting Ranges See table 2 Actuator Yoke Boss and Valve Stem Connection Diameters Sizes 3A through 36 54 mm 2 1 8 inch yoke boss with 9 5 mm 3 8 inch stem connection Sizes 4A through 46 71 mm 2 13 16 inch yoke boss with 12 7 mm 1 2 inch stem connection Maximum Travel Sizes 3A and 4A 11 mm 0 4375 inch plus 3 mm 0 125 inch for seating Specifications Specifications for the Type 655 and 655R actuators are shown in table 1 Information for a specific actuator is also found on the nameplate of that actuator Installation To avoid personal injury or property damage caused by bursting of pressure retaining parts be certain the service conditions do not exceed the casing pressure limits listed in table 1 Use pressure limiting or pressure relieving devices to prevent service conditions from exceeding these limits All Other Sizes 19 mm 0 75 inch plus 3 mm 0 125 inch for seating Effective Diaphragm Area See table 3 Spring Rate See key 6 in the parts list section Temperature Capabilities 29 to 82 C 20 to 180 F with standard diaphragm material For the fluid and temperature capabilities of nonstandard diaphragm materials consult your Emerson Process Management sales office Casing Pressure Connection
3. 3A and 4A actuators remove the cap screws key 19 figure 4 and lift the handwheel body key 28 figure 5 off the actuator 4 For size 3B through 46 actuators remove the cap screws and hex nuts keys 19 and 20 figure 4 and then lift off the upper diaphragm casing key 1 figure 4 and handwheel assembly To replace the O ring key 139 figure 7 or for ease of handling separate the handwheel assembly from the upper diaphragm casing This can be accomplished by removing the cap screws that secure the handwheel assembly to the upper diaphragm casing key 33 figure 6 key 141 figure 7 5 Turn the handwheel clockwise two or three turns Remove the hex nut key 22 figures 5 and 6 key 54 figure 7 and washer key 24 figures 5 and 6 key 134 figure 7 and lift off the handwheel 6 Unscrew the locknut key 27 figures 5 and 6 key 137 figure 7 from the handwheel stem key 26 figures 5 and 6 key 133 figure 7 and then remove the handwheel stem through the bottom of the handwheel body key 28 figures 5 and 6 key 142 figure 7 A screwdriver slot in the top of the handwheel stem is provided for this purpose 7 Check the O ring key 29 figures 5 and 6 key 138 figure 7 and replace it if necessary 8 To complete disassembly drive out the groove pin key 31 not shown key 140 figure 7 and slide the pusher plate key 32 figures 5 and 6 key 135 figure 7 off the handwheel stem For Type 655 size 3B and 4B
4. 4 35 5 4 78 2 0 29 4 4 64 3 1E795427082 0 5 7 0 1 0 15 0 4 5 5 0 9 13 3B 4B 1F714327092 1 4 20 4 1 60 1 3 19 3 7 53 1E792427082 0 4 5 8 0 9 13 0 3 5 0 0 8 11 1F176927092 1 0 14 3 0 43 1 2 17 2 6 38 1F714327092 0 2 3 3 0 7 10 0 2 3 2 0 6 9 0 1E793327082 2 2 32 4 5 65 1 8 26 2 6 38 1F176927092 0 2 2 4 0 5 7 2 0 2 2 8 0 4 6 3 32 1E795427082 1 8 26 3 8 55 1 5 22 2 6 38 9545 1F176827092 0 1 2 0 0 4 5 9 0 2 2 5 0 4 5 5 1E793327082 2 2 32 4 5 65 1 8 26 3 7 53 1F 176727032 0 1 1 5 0 3 4 4 0 1 1 5 0 3 4 2 4e 1E795427082 1 8 26 3 8 55 1 5 22 3 1 45 1F714427112 0 07 1 0 0 2 2 9 0 09 1 3 0 2 2 8 1E792427082 1 5 22 3 2 47 1 2 18 2 6 38 1E793327082 0 4 5 8 0 9 13 0 3 5 0 0 5 7 7 ge e 1F714327092 0 8 12 2 5 36 0 8 12 2 1 31 a 1E795427082 0 3 4 9 0 8 11 0 3 4 2 0 5 7 7 1E793327082 1 3 19 2 8 40 1 1 16 1 7 24 1E793327082 0 4 5 8 0 9 13 0 3 5 0 0 8 11 23 1E795427082 1 1 16 2 3 34 0 9 13 1 7 24 ae 1E795427082 0 3 4 9 0 8 11 0 3 4 2 0 6 9 0 1E793327082 1 3 19 2 8 40 1 1 16 2 3 33 1E792427082 0 3 4 1 0 6 9 2 0 2 3 5 0 5 7 7 a 1E795427082 1 1 16 2 3 34 0 9 13 1 9 28 1F714327092 0 2 2 3 0 5 7 1 0 2 2 3 0 4 6 3 1E792427082 1 0 14 2 0 29
5. 655R Actuators July 2007 Fisher is a mark owned by Fisher Controls International LLC a member of the Emerson Process Management business division of Emerson Electric Co Emerson Process Management Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use and maintenance of any product Responsibility for the selection use and maintenance of any product remains with the purchaser and end user Emerson Process Management Marshalltown lowa 50158 USA K Cernay 68700 France 2n Sao Paulo 05424 Brazil ss Singapore 128461 www Fisher com EM ERSON Process Management Fisher Controls International LLC 1975 2007 All Rights Reserved Printed in USA
6. Ring nitrile 1D237506992 O Ring nitrile not shown Sizes 3B amp 4B only 1D267306992 Groove Pin Pusher Plate Cap Screw Travel Stop Sizes 32 thru 46 51 54 133 134 135 137 138 139 140 141 142 241 Handwheel Hex Nut Handwheel Stem Washer Pusher Hex Nut O Ring nitrile O Ring nitrile Groove Pin Cap Screw Handwheel Body Lithium grease lubricant 1 0 396 kg 14 oz can not furnished with actuator 1D237506992 1D267306992 13 655 and 655R Actuators Instruction Manual Form 1292 July 2007 43 5 _ 26 O APPLY LUB PARTS NOT SHOWN 30 amp 31 38A1217 B DOC Figure 6 Size 3B and 4B Top Mounted Handwheel Assembly Key 6 Spring steel SPRING RATE SAFE LOAD COLOR CODE N mm Lb in N Lb Aluminum amp red 22 123 1290 290 Aluminum amp dark green 43 246 2420 545 Dark green 64 368 3750 843 Aluminum 86 490 4720 1060 Dark blue 107 612 5200 1187 Aluminum amp dark blue 145 830 7250 1630 Light blue 220 1260 8184 1840 Light green 257 1470 9790 2200 Light grey 310 1770 11 600 2600 Yellow 368 2100 13 500 3045 Dark grey 129 735 5160 1160 Aluminum amp brown 175 1000 7000 1575 White 441 2520 14 010 3150 14 BV8008 E DOC Figure 7 Size 32 through 46 Top Mounted Handwheel Assembly Instruction Manual Form 1292 July 2007 655 and 655R Actuators Instruction Manual Form 1292 655 and
7. actuators a travel stop key 34 figure 6 should also be removed with these parts Assembly This procedure assumes that the handwheel assembly is completely disassembled If it is not start the instructions at the appropriate step 1 During assembly apply lithium grease lubricant key 241 to the handwheel stem and threads the pusher and to the O rings as shown in figures 5 6 and 7 2 Slide the pusher plate key 32 figures 5 and 6 key 135 figure 7 onto the handwheel stem and if necessary insert the groove pin key 31 not shown key 140 figure 7 For Type 655 size 3B and 4B actuators a travel stop key 34 figure 6 should also be inserted on the handwheel stem with these parts 3 Insert the handwheel stem into the handwheel body key 28 figures 5 and 6 key 142 figure 7 then screw the hex nut key 27 figures 5 and 6 key 137 figure 7 onto the handwheel stem 4 Install the handwheel key 25 figures 5 and 6 key 51 figure 7 and washer key 24 figures 5 and 6 key 134 figure 7 onto the handwheel stem and secure it with the hex nut key 22 figures 5 and 6 key 54 figure 7 5 For size 3A and 4A actuators set the handwheel body onto the actuator and secure it with the cap screws key 19 figure 4 Note When you replace actuator diaphragms in the field take care to ensure the diaphragm casing bolts are Instruction Manual Form 1292 July 2007 655 and 655R Actuators tightene
8. it while in service And a conventional three valve bypass see figure 2 should be placed around the regulator or relief valve to permit continuous operation when it is being installed or repaired Actuator Mounting The actuator may be installed either above or below the pipeline CAUTION In steam service applications avoid premature wear of the diaphragm due to high temperature steam by installing the valve with the actuator positioned below the pipeline If the regulator or relief valve is to be used for steam service the valve should be installed with the actuator positioned below the pipeline and the control line should be sloped down toward the diaphragm casing This is to ensure that any forming condensate will maintain a water seal to protect the diaphragm The following procedure describes how to mount the actuator on either a push down to close or a push down to open valve so that the actuator stem and valve stem thread engagement will allow full travel and proper shutoff Refer to figure 3 for actuator mounting components Key numbers refer to figure 4 unless otherwise stated 1 Turn the adjusting screw key 10 into the yoke key 7 to force the diaphragm key 2 and diaphragm plate key 4 against the upper diaphragm casing key 1 2 Perform the following steps as appropriate for either push down to close or push down to open valve action CAUTION In the following procedures do not rotate the va
9. the actuator follow the procedures outlined in the Startup section of this instruction manual 655 and 655R Actuators Instruction Manual Form 1292 July 2007 Parts Ordering When corresponding with your Emerson Process Management sales office about this equipment refer to the serial number found on the actuator nameplate key 17 figure 4 Also specify the complete 11 character part number from the following parts list when ordering replacement parts Use only genuine Fisher replacement parts Components that are not supplied by Emerson Process Management should not under any circumstances be used in any Fisher valve because they will void your warranty might adversely affect the performance of the valve and could give rise to personal injury and property damage Note Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use and maintenance of any product Responsibility for the selection use and maintenance of any product remains with the purchaser and end user 12 Parts List Note Part numbers are shown for recommended spares only For part numbers not shown contact your Emerson Process Management sales office Actuator Key Description Part Number 1 Upper Diaphragm Casing 2 Diaphragm chloroprene Sizes 3A amp 4A 1F725102192 Sizes 3B amp 4B 1F725902192 Sizes 32 amp 42 W o top mounted handwheel 1F702202112 W top m
10. 0 8 11 1 7 24 1F176927092 0 1 1 7 0 4 5 1 0 1 2 0 0 3 4 5 33 43 1F714327092 0 5 7 0 1 5 22 0 5 7 0 1 4 20 36 46 1F 176827092 0 09 1 3 0 3 4 2 0 1 1 8 0 3 4 0 1F 176927092 0 4 5 2 1 1 16 0 3 5 0 1 1 16 1F176727032 0 07 1 0 0 2 3 1 0 08 1 1 0 2 3 0 1E793327082 0 9 13 1 9 28 0 8 11 1 1 16 1F714427112 0 05 0 7 0 1 2 1 0 06 0 9 0 1 2 0 ot 1E795427082 0 8 11 1 6 23 0 6 9 0 1 1 16 1F713027112 0 02 0 34 0 08 1 1 0 05 0 7 0 07 1 0 1 Effects of packing box friction unbalance and weight of valve plug not considered in calculations 1 2 NPT CONTROL LINE LARGE PORT 1 2 NPT LARGE PORT NEEDLE VALVE NEEDLE VALVE eat Lo CONTROL LINE m o TYPE 655R ACTUATOR a BYPASS LINE TYPE 655 ACTUATOR gSA LINE STRAINER DIRECT ACTING BALANCED PLUG VALVE BODY REVERSE ACTING BALANCED PLUG VALVE BODY a STRAINER 13A6502 A Megat iL PRESSURE REDUCING INSTALLATION PRESSURE RELIEF INSTALLATION Figure 2 Typical Installation Schematics Instruction Manual Form 1292 July 2007 655 and 655R Actuators Table 3 Effective Diaphragm Area ACTUA TRAVEL DOWN FROM UPPER CASING STOP mm IN TOR 0 3 0 125 5 0 1875 6 0 25 10 0 375 11 0 4375 13 0 5 14 0 5625 19 0 75 22 0 875 SIZE Cm In2 Cm2 In 2 Cm2 In 2 Cm2 In 2 Cm2 In 2 Cm2 In2 Cm2
11. Actuators Instruction Manual Form 1292 July 2007 f Stroke the actuator and measure the stem movement to check travel If the movement is more than full travel turn the valve stem out of the actuator stem the amount of over travel If movement is less than full travel turn the valve stem into the actuator stem the amount of under travel For Push Down To Open Valves a Place the actuator yoke locknut and travel indicator disk key 11 if used over the valve stem Support the actuator above the valve body so the actuator stem and valve stem do not contact when the valve plug is seated b Connect the pressure control lines as described in the Loading Connection portion of this section c Move the valve plug by hand from the seated to the open position and make sure that valve stem movement corresponds to the desired travel d Stroke the actuator until the diaphragm plate key 4 contacts the down travel stop see figure 3 e With the valve plug positioned as described in step c above lower the actuator until the actuator stem contacts the valve stem and measure the distance from the bottom of the actuator yoke to the mating shoulder on the bonnet f Thread the valve stem into the actuator stem until the thread engagement is equal to the distance measured in the previous step Tighten the hex nuts key 12 together and use a wrench to turn the valve plug and stem assembly g Lower the actuator onto t
12. If you have any questions about these instructions contact your Emerson Process Management sales office before proceeding Description Type 655 and 655R actuators figure 1 are pressure actuated spring and diaphragm actuators used in conjunction with various valves to provide ey er Figure 1 Type 655 ED Pressure Reducing Valve ss e W0466 1 IL control for a wide variety of pressure regulation applications Type 655 actuators are used for pressure reducing service when mounted on push down to close valves such as the Design ED and ET valves Type 655R actuators are used for pressure relief service when mounted on push down to open valves such as the Design EDR and ETR valves Both types are self operated and direct acting that is increasing pressure in the diaphragm casing forces the actuator stem downward and decreasing the pressure allows the actuator spring to lift the actuator stem upward Note Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use and maintenance of any product Responsibility for the selection use and maintenance of any product remains with the purchaser and end user eS Yy www Fisher com Process Management EMERSON D100305X012 655 and 655R Actuators Instruction Manual Form 1292 July 2007 Table 1 Specifications Actuator Sizes and Maximum Casing Pressures
13. In2 Cm2 In 2 Cm2 In 2 Cm2 In 2 3A 4A 66 102 62 96 61 95 61 94 59 92 59 91 57 89 Se 87 3B 4B 152 235 139 21 6 136 21 1 134 20 8 132 205 131 20 3 130 20 1 128 19 8 117 181 103 16 0 32 42 258 40 0 235 36 4 227 35 2 221 34 2 210 326 205 31 8 200 31 0 195 303 182 282 170 26 4 33 43 406 63 0 374 58 0 366 568 358 55 5 345 53 5 340 52 7 335 52 0 330 51 2 318 49 3 307 47 6 34 44 600 93 0 547 84 8 534 828 523 81 0 5o8 78 8 502 77 8 497 77 0 490 76 0 474 73 5 465 72 0 35 45 865 134 0 834 129 2 821 127 2 809 125 4 788 122 2 777 120 5 768 119 0 759 117 6 736 114 1 723 112 0 36 46 1230 190 0 1170 181 5 1150 179 0 1140 177 0 1120 173 5 1110 172 3 1100 171 0 1100 169 8 1070 166 5 1050 163 5 1 For the spring rates of a particular spring see key 6 in the Parts List section DV3742 B DH4667 B 31A0223 B B0816 1 IL PET ETN nN An a e a N PUSH DOWN TO CLOSE VALVE DIAPHRAGM PLATE DOWN TRAVEL STOP ACTUATOR STEM ADJUSTING SCREW TRAVEL INDICATOR STEM HEX NUTS VALVE STEM YOKE LOCKNUT SEAT RING VALVE PLUG VALVE PLUG SEAT RING Figure 3 Actuator Valve Components Ac PUSH DOWN TO OPEN VALVE 655 and 655R
14. Instruction Manual Form 1292 July 2007 655 and 655R Actuators Type 655 and 655R Actuators for Self Operated Control Contents Introduction aporia iaa n pe eee eee eee 1 Scope of Manual 222 0000s 1 Description 0 e eee eee 1 Specifications 0 cece eee eee 2 Installation 0 0 0 c eee eee 2 Actuator Mounting 0 eee eee 3 Loading Connections 00 6 SlANUP e esha sie wigan eee 6 Startup for Pressure Reducing Service 6 Startup for Pressure Relief Service 7 Adjustment for Pressure Reducing or Pressure Relief Service 7 SULA OWI e e EEEE tek Sansa A 7 Maintenance 2 000e eee eee ee 7 ACtUAlON ieina fae Seer seared oad 8 Top Mounted Handwheel 10 Parts Ordering 000eee eee eee eee 12 Pansi List s urni penini wating itauedt 12 Introduction Scope of Manual This instruction manual provides installation adjustment maintenance and parts ordering for the Type 655 and 655R actuators and the top mounted handwheel Refer to separate instruction manuals for information about valves and accessories used with these actuators Do not install operate or maintain 655 and 655R actuators without first being fully trained and qualified in valve actuator and accessory installation operation and maintenance and e carefully reading and understanding the contents of this manual
15. can damage the diaphragm Do not exceed 27 Nem 20 Ibfeft torque Note Do not use lubricant on these bolts and nuts Fasteners must be clean and dry 7 Install the upper diaphragm casing key 1 and install the cap screws key 19 or cap screws and nuts keys 19 and 20 Tighten in the following manner 8 The first four bolts tightened should be diametrically opposed and 90 degrees apart Tighten these four bolts to 13 Nem 10 Ibfeft 9 Tighten the remaining bolts in a clockwise criss cross pattern to 13 Nem 10 Ibfeft 10 Repeat this procedure by tightening four bolts diametrically opposed and 90 degrees apart to a torque of 27 Nem 20 lbfeft 11 Tighten the remaining bolts in a clockwise criss cross pattern to 27 Nem 20 Ibfeft 12 After the last bolt is tightened to 27 Nem 20 Ibfeft all of the bolts should be tightened again to 27 Nem 20 Ibfeft in a circular pattern around the bolt circle 13 Once completed no more tightening is recommended 14 Mount the actuator onto the valve by following the procedures outlined in the Actuator Mounting portion of the installation section 15 Connect the pressure control line by following the procedures outlined in the Loading Connections portion of the Installation section 655 and 655R Actuators Instruction Manual Form 1292 July 2007 16 To start up and adjust the actuator follow the procedures outlined in the Startup section of this instru
16. ction manual Top Mounted Handwheel Top mounted handwheel assemblies figures 5 6 and 7 are normally used as adjustable travel stops to limit full upward travel of the actuator stem Turning the handwheel clockwise forces the actuator stem downward while turning the handwheel counterclockwise allows the spring to force the actuator stem upward If the actuator is used with a push down to close valve full opening of the valve plug can be restricted through the appropriate positioning of the top mounted handwheel If the actuator is used with a push down to open valve closing of the valve plug can be restricted by using the handwheel A locknut key 27 figures 5 and 6 key 137 figure 7 is used to hold the handwheel in position Instructions are given below for complete disassembly and assembly Perform the disassembly only as necessary to accomplish the required maintenance then begin the assembly at the appropriate step Key numbers refer to figure 5 for size 3A and 4A figure 6 for size 3B and 4B and figure 7 for size 32 through 46 top mounted handwheel assemblies Disassembly 1 Bypass the control valve Relieve all loading pressure and remove the tubing or pipe from the handwheel body 2 Loosen the hex nut key 27 figures 5 and 6 key 137 figure 7 Turn the adjusting screw key 10 figure 4 and the handwheel key 25 figures 5 and 6 key 51 figure 7 counterclockwise to relieve all compression 3 For size
17. d to the proper load to prevent leakage but not crush the material Perform the following tightening sequence with a manual torque wrench CAUTION Over tightening the diaphragm cap screws key 19 can damage the diaphragm Do not exceed 27 Nem 20 Ibfeft torque Note Do not use lubricant on these bolts and nuts Fasteners must be clean and dry 6 Install the upper diaphragm casing key 1 and install the cap screws key 19 Tighten in the following manner 7 The first four bolts tightened should be diametrically opposed and 90 degrees apart Tighten these four bolts to 13 Nem 10 Ibfeft 8 Tighten the remaining bolts in a clockwise criss cross pattern to 13 Nem 10 Ibfeft 9 Repeat this procedure by tightening four bolts diametrically opposed and 90 degrees apart to a torque of 27 Nem 20 Ibfeft 10 Tighten the remaining bolts in a clockwise criss cross pattern to 27 Nem 20 Ibfeft 11 After the last bolt is tightened to 27 Nem 20 Ibfeft all of the bolts should be tightened again to 27 Nem 20 Ibfeft in a circular pattern around the bolt circle 12 Once completed no more tightening is recommended Proceed to step 21 13 For size 3B through 46 actuators set the upper diaphragm casing key 1 figure 4 and handwheel assembly onto the actuator body and secure it with the cap screws and hex nuts keys 19 and 20 figure 4 Note When you replace actuator diaphragms in the field take ca
18. e actuator Perform the appropriate procedure according to the respective valve action For Push Down To Close Valves Note To prevent the actuator stem key 8 from rotating while performing the following procedure make sure the adjusting screw key 10 remains screwed into the yoke key 7 a Loosen the two hex nuts key 12 b Loosen the yoke locknut figure 3 with a hammer and punch and unscrew it from the valve bonnet c While lifting the actuator so that the valve plug is not forced against the seat rotate the entire actuator until the actuator stem disengages completely from the valve plug stem For Push Down To Open Valves a Turn the adjusting screw key 10 counterclockwise to relieve all spring compression Then move the valve plug by hand off the seat b Loosen the hex nuts key 12 and unscrew the valve plug stem out of the actuator stem as far as it will go c Turn the adjusting screw into the yoke key 7 to force the diaphragm key 2 and diaphragm plate key 4 against the upper diaphragm casing key 1 d Loosen the yoke locknut figure 3 with a hammer and punch and unscrew it from the valve bonnet e Rotate the entire actuator until the actuator stem disengages from the valve plug stem 3 Turn the adjusting screw key 10 counterclockwise out of the yoke key 7 to relieve all spring compression 4 To remove the upper diaphragm casing key 1 unscrew the cap screws ke
19. he valve body bonnet and tighten the yoke locknut h Stroke the actuator and measure the stem movement to check travel If the movement is more than full travel turn the valve stem into the actuator stem the amount of over travel If the movement is less than full travel turn the valve stem out of the actuator stem the amount of under travel 3 After correct travel has been obtained tighten the hex nuts key 12 against the actuator stem key 8 and tighten the yoke locknut with a hammer and punch Note Changing the spring adjustment will not change the actuator pressure range for that particular spring see table 2 Changing the spring adjustment merely shifts the position of the spring either up or down so that valve travel can coincide with the actuator pressure setting range 4 While monitoring loading pressure with a pressure gauge stroke the actuator and then turn the adjusting screw until the valve begins to travel at the desired pressure Turn the adjusting screw out of the yoke to decrease spring compression and thus allow the valve to begin travel at a lower loading pressure Turn the adjusting screw into the yoke to increase spring compression and thus allow the valve to begin travel at a higher loading pressure Loading Connections Install the control line following the steps listed below Typical installations are shown in figure 2 1 Connect the control line into either the upstream pipeline for pre
20. ll have travel stops key 13 not shown in place of three of these six cap screws 4 Install the lower spring seat key 9 and the actuator spring key 6 Note To take some of the slack out of the diaphragm key 2 at the bolt circle turn the adjusting screw into the yoke key 7 to raise the diaphragm plate key 4 This will also ensure that the diaphragm will have enough slack inside the casings for efficient travel 5 Secure the diaphragm plate key 4 to the actuator stem key 8 with the cap screw key 3 and install this assembly into the actuator Install the diaphragm making sure that the patterned side of the diaphragm is next to the diaphragm plate Note When replacing the upper diaphragm casing key 1 be sure there are no wrinkles in the diaphragm that might cause the diaphragm to tear or allow leakage 6 Place the upper diaphragm casing onto the lower diaphragm casing For size 3A and 4A actuators secure the casings with the cap screws key 19 For all other actuator sizes secure the casing with the cap screws and hex nuts keys 19 and 20 Note When you replace actuator diaphragms in the field take care to ensure the diaphragm casing bolts are tightened to the proper load to prevent leakage but not crush the material Perform the following tightening sequence with a manual torque wrench CAUTION Over tightening the diaphragm cap screws key 19 or cap screws and nuts keys 19 and 20
21. lve plug while it is seated since this may cause damage to the seating surfaces and thereby allow excessive leakage Also during travel adjustment use tools carefully to avoid damaging the valve plug stem A damaged stem could cut the packing and allow leakage For Push Down To Close Valves a Place the actuator part way over the valve stem Then place the yoke locknut over the valve stem and slide the travel indicator disk key 11 if used on top of the hex nuts key 12 b Set the actuator onto the valve body The length of the valve stem will prevent the actuator yoke key 7 from sitting on the bonnet properly Measure the distance from the bottom of the actuator yoke to the mating shoulder on the bonnet and then add the valve plug travel to this measurement c Raise the actuator so the valve plug can be lifted off the seat ring Note Either turn the actuator or tighten the hex nuts together and use a wrench on the hex nuts to turn the valve plug and stem assembly Thread the valve stem into the actuator stem the distance measured in the previous step d Lower the actuator onto the valve body bonnet and tighten the yoke locknut e Connect the pressure control lines as described in the Loading Connection portion of this section Instruction Manual Form 1292 655 and 655R Actuators July 2007 Table 2 Actuator Pressure Setting Ranges
22. n process fluids that are 655 and 655R Actuators Instruction Manual Form 1292 July 2007 pressurized even when the valve has been removed from the pipeline Process fluids may spray out under pressure when removing the packing hardware or packing rings or when loosening the packing box pipe plug e Check with your process or safety engineer for any additional measures that must be taken to protect against process media The maintenance instructions are divided into two sections Actuator and Top Mounted Handwheel Actuator This procedure describes how the actuator can be completely disassembled and assembled When inspection or repairs are required disassemble only those parts necessary to accomplish the job then start the assembly at the appropriate step Key numbers refer to figure 4 Disassembly CAUTION In the following procedure do not rotate the valve plug while it is seated since this may cause damage to the seating surfaces and thereby allow excessive leakage Also during travel adjustment use tools carefully to avoid damaging the valve plug stem A damaged stem could cut the packing and allow leakage 1 Rotate the handwheel if one is used counterclockwise to be sure the handwheel is not compressing the spring key 6 2 For complete disassembly the actuator must be removed from the valve and the actuator stem key 8 must be completely disengaged from the valve plug stem by rotating th
23. or Pressure Reducing or Pressure Relief Service The actuator is factory set as specified on the order and the pressure range is stamped on the nameplate If a pressure setting other than the one specified is desired change the pressure setting by following the procedures listed below Be sure to change the nameplate to indicate the new pressure setting The new pressure setting must not exceed the limits given in tables 1 and 2 or in any applicable codes CAUTION To protect equipment in the process system from a sudden release of pressure always use a pressure gauge to monitor pressure when making adjustments To adjust the downstream pressure setting for pressure reducing service or the upstream pressure setting for pressure relief service proceed as follows To decrease the pressure setting turn the adjusting screw key 10 figure 4 counterclockwise to increase the pressure setting turn the adjusting screw clockwise If the spring does not provide the required pressure setting replace it through the following steps 1 Disassemble the actuator by following steps 1 3 and 4 of the Disassembly portion of the Maintenance section 2 Remove the diaphragm key 2 Then unscrew the cap screw key 3 and lift the diaphragm plate key 4 out of the actuator body 3 Replace the spring and reassemble the actuator by following steps 5 and 6 of the Assembly portion of the Maintenance section Shutdown For both pressure
24. ounted handwhee 1F702202192 Sizes 33 amp 43 W o top mounted handwheel 1F702302112 W top mounted handwhee 1F7023X0012 Sizes 34 amp 44 W o top mounted handwheel 1F702402112 W top mounted handwhee 1F7024X0022 Sizes 35 amp 45 W o top mounted handwheel 1F702502112 W top mounted handwhee 1F7025X0022 Sizes 36 amp 46 W top mounted handwheel 1F7026X0012 3 Cap Screw 4 Diaphragm Plate 5 Lower Diaphragm Casing 6 Spring See following table 7 Yoke 8 Actuator Stem Recommended spare parts Instruction Manual Form 1292 July 2007 655 and 655R Actuators 30A8341 A DOC A gt APPLY MOLY GREASE LUBRICANT TO ADJUSTING SCREW SIZE 3A AND 4A ACTUATOR DIAPHRAGM CASINGS 30A8342 A DOC Figure 4 Type 655 Actuator Key Description Part Number 9 Lower Spring Seat 10 Adjusting Screw 11 Travel Indicator Disk 12 Hex Nut 13 Travel Stop 14 Screw 15 Travel Indicator Scale 16 Twin Speed Nut 17 Nameplate Recommended spare parts IN B 241 KSI SETTA AZ OlappLy LUB PART NOT SHOWN 31 28A1216 C DOC Figure 5 Size 3A and 4A Top Mounted Handwheel Assembly Description Part Number Drive Screw Cap Screw Hex Nut Cap Screw Top Mounted Handwheel Sizes 3A 4A 3B amp 4B 22 24 25 26 27 28 29 30 31 32 33 34 Hex Jam Nut Washer Handwheel Handwheel Stem Hex Jam Nut Handwheel Body O
25. re to ensure the diaphragm casing bolts are tightened to the proper load to prevent leakage but not crush the material Perform the following tightening sequence with a manual torque wrench CAUTION Over tightening the diaphragm cap screws and nuts keys 19 and 20 can damage the diaphragm Do not exceed 27 Nem 20 Ibfeft torque Note Do not use lubricant on these bolts and nuts Fasteners must be clean and dry 14 Install the upper diaphragm casing key 1 and install the cap screws and nuts keys 19 and 20 Tighten in the following manner 15 The first four bolts tightened should be diametrically opposed and 90 degrees apart Tighten these four bolts to 13 Nem 10 Ibfeft 16 Tighten the remaining bolts in a clockwise criss cross pattern to 13 Nem 10 Ibfeft 17 Repeat this procedure by tightening four bolts diametrically opposed and 90 degrees apart to a torque of 27 Nem 20 lbfeft 18 Tighten the remaining bolts in a clockwise criss cross pattern to 27 Nem 20 Ibfeft 19 After the last bolt is tightened to 27 Nem 20 Ibfeft all of the bolts should be tightened again to 27 Nem 20 Ibfeft in a circular pattern around the bolt circle 20 Once completed no more tightening is recommended 21 Connect the pressure control line to the top mounted handwheel assembly by following the procedures outlined in the Loading Connections portion of the Installation section 22 To start up and adjust
26. reducing and pressure relief applications refer to figure 2 and follow the procedures described below 1 Close the upstream shutoff valve slightly 2 Slowly open the bypass valve while monitoring downstream pressure 3 Slowly close the downstream shutoff valve 4 Close the upstream shutoff valve 5 Close the needle valve in the control line Maintenance Actuator parts are subject to normal wear and must be inspected and replaced when necessary The frequency of inspection and replacement depends on the severity of service conditions Avoid personal injury or property damage from sudden release of process pressure or bursting of parts Before performing any maintenance operations e Always wear protective gloves clothing and eyewear when performing any maintenance operations to avoid personal injury e Disconnect any operating lines providing air pressure electric power or a control signal to the actuator Be sure the actuator cannot suddenly open or close the valve e Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure from both sides of the valve Drain the process media from both sides of the valve e Vent the power actuator loading pressure and relieve any actuator spring precompression e Use lock out procedures to be sure that the above measures stay in effect while you work on the equipment e The valve packing box may contai
27. s 1 2 NPT internal Approximate Weights ACTUATOR APPROXIMATE WEIGHT SIZE Kg Lb 3A 3B 32 33 20 45 34 35 36 23 50 4A 4B 42 43 29 65 44 45 46 34 75 Always wear protective gloves clothing and eyewear when performing any installation operations to avoid personal injury 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 Type 655 and 655R actuators are normally shipped mounted on a valve Refer to the appropriate valve instruction manual when installing the valve in the pipeline If the actuator is shipped separately or if it is necessary to mount the actuator on the valve perform the procedures described in the Actuator Mounting portion of this section Instruction Manual Form 1292 July 2007 655 and 655R Actuators CAUTION To avoid premature wear of the diaphragm due to debris in the pressure line to the diaphragm install a strainer in the pipeline ahead of the regulator or relief valve Before installing the actuator inspect it for any damage Also keep any adjacent piping clean and free of pipe scale or other debris that could possibly disrupt service It is recommended that a strainer be installed in the pipeline ahead of the regulator or relief valve to protect
28. ssure relief service or into the downstream pipeline for pressure reducing service as shown in figure 2 Make the pipeline tap at least four to eight pipe diameters away from the regulator or relief valve or any elbow swage or nipple to avoid abnormal velocities or turbulence 2 Connect the other end of the control line to the 1 2 NPT connection in the center of the upper diaphragm casing key 1 or to the connection in the handwheel body key 28 figures 5 and 6 key 142 figure 7 3 Fit the control line with a large port needle valve Partially closing or throttling this valve will tend to dampen any cycling or pulsating action of the regulator Never completely close the needle valve while the regulator is in operation Startup The procedures for placing into operation and adjusting the equipment for both pressure reducing and pressure relief applications are described below Typical installation schematics are shown in figure 2 Startup For Pressure Reducing Service 1 Open the needle valve in the control line 2 Open the downstream shutoff valve 3 Close the valve in the bypass line Instruction Manual Form 1292 July 2007 655 and 655R Actuators 4 Slowly open the upstream shutoff valve Startup For Pressure Relief Service 1 Open the needle valve in the control line 2 Open the downstream shutoff valve 3 Slowly open the upstream shutoff valve 4 Close the valve in the bypass line Adjustment F
29. y 19 for size 3A and 4A actuators or the cap screws and hex nuts keys 19 and 20 for all other sizes 5 Remove the diaphragm key 2 then lift the diaphragm plate key 4 and actuator stem assembly out of the actuator body Also remove the spring and the lower spring seat key 9 6 For size 3A and 4A actuators remove the lower diaphragm casing key 5 7 Remove the cap screw key 3 and separate the diaphragm plate from the actuator stem 8 For size 3B through 46 actuators unscrew the cap screws key 21 and remove the lower Instruction Manual Form 1292 July 2007 655 and 655R Actuators diaphragm casing key 5 Some Type 655R actuators will have travel stops key 13 not shown in place of three of these six cap screws 9 If a top mounted handwheel assembly is used refer to steps 4 through 8 of the Disassembly portion of the Top Mounted Handwheel section Assembly This procedure assumes that the actuator is completely disassembled If it is not start the instructions at the appropriate step 1 Before starting assembly apply moly grease lubricant to the threads and the bearing end of the adjusting screw key 10 as indicated in figure 4 by the letter A 2 For size 3A and 4A actuators set the lower diaphragm casing key 5 onto the yoke key 7 3 For size 3B through 46 actuators install the lower diaphragm casing key 5 and secure it with the cap screws key 21 Some Type 655R actuators wi
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