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Installation, Operation and Maintenance Manual

RGS011110-3 Rev. 0

November 2015

6

Section 2: Installation

Installation

Piping Guidelines:

•

Both end cap pressure ports (P1 and P2) must be utilized for proper operation.

•

P1 and P2 are typically connected and powered by a single air pathway.

•

P5 is a breather port that should be fitted with a filter or strainer.

Figure 4

P1

P2

P1

P2

P5 (2)

P5 (2)

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Содержание F-Series

Страница 1: ...Bettis RGS F Series Spring Return Actuators Installation Operation and Maintenance Manual RGS011110 3 Rev 0 November 2015 ...

Страница 2: ......

Страница 3: ...Attachment 3 2 2 Accessory Mounting 3 2 3 Piping and Operation 4 2 4 Travel Adjustment 7 Section 3 General Troubleshooting 9 Section 4 Maintenance 10 4 1 Periodic Maintenance Schedule 10 4 2 Lubrication 10 4 3 Maintenance Kit 12 4 4 Piston Seal Replacement 12 4 5 Yoke Seal and Bushing Replacement 16 4 6 Pins and Rollers Replacement 20 Appendix A 22 A 1 Force Module 22 A 2 Torque Module 24 ...

Страница 4: ...inning maintenance Bettis RGS F Series actuators are composed of three basic sub assemblies two force modules and a torque module The force modules contain the pistons which provide linear motion The torque module contains the yoke which converts the force modules linear motion into torque and operates the valve Every actuator assembled by Bettis is tested prior to shipment to our customers Order ...

Страница 5: ...n Section 2 Installation Bettis actuators may be mounted in any position orientation If necessary lift the actuator with straps placed inside the framework of the body Never lift the actuator by the cylinders tie rods or travel stops Lifting the actuator with the valve attached is not generally recommended Figure 1 ...

Страница 6: ...ettis Universal Mounting Plate UMP if provided Using all mounting holes indicated on Bettis dimensional drawings tighten all fasteners hand tight then torque the fasteners to the corresponding value on the table below Table 1 Thread Pattern Ft Lbs Nm Accessories M5 3 4 4 6 F2200 M12 49 66 F2250 2300 M16 120 162 F2375 M20 235 318 F2488 M24 400 543 F2575 M30 800 1084 2 2 Accessory Mounting As a stan...

Страница 7: ... may be harmed over time by the presence of water WARNING DO NOT EXCEED PRESSURE RATING Exceeding the stated maximum pressure may result in damage to equipment and danger to personnel including severe injury or death Consult the actuator label for operating limits If an actuator label is missing contact Bettis to request a replacement WARNING DO NOT EXCEED TEMPERATURE RATING Operating outside of t...

Страница 8: ...ll accessories to the opposite side of the shaft and turning the actuator top side down Spring Return Left Hand pressure on the end cap ports pushes the pistons inward and causes counterclockwise rotation Springs push the pistons outward resulting in a clockwise rotation Spring Return Right Hand pressure on the end cap ports pushes the pistons inward and causes clockwise rotation Springs push the ...

Страница 9: ... Installation Installation Piping Guidelines Both end cap pressure ports P1 and P2 must be utilized for proper operation P1 and P2 are typically connected and powered by a single air pathway P5 is a breather port that should be fitted with a filter or strainer Figure 4 P1 P2 P1 P2 P5 2 P5 2 ...

Страница 10: ...Be careful not to misplace the travel stop O rings 3 Ensure actuator lockout if provided is disengaged 4 Apply pressure to P1 and P2 to force the pistons fully inward and away from the end cap travel stops 5 Unthread Travel Stop A 2 four to five full turns 6 Adjust Travel Stop A 1 until travel is set to the desired position It will be necessary to relieve pressure from P1 and P2 between adjustment...

Страница 11: ... they contact the clevis simultaneously It will be necessary to apply pressure to P1 and P2 between adjustments to determine the final position of travel 6 With pressure to P1 and P2 thread in Travel Stops B 2 until they are in firm contact with the clevis Figure 6 7 With pressure still to P1 and P2 ensure that all Travel Stops B are in firm contact with the clevis and tighten all travel stop nuts...

Страница 12: ...ing See Section 4 4 Damaged cylinder seals See Section 4 4 Improper Travel Travel stops are not correctly set See Section 2 4 Internal cylinder contaminants preventing normal stroke See Section 4 4 Damaged valve Consult valve manufacturer Broken Springs Replace Springpaq Operating Strokingtooslowly Supply pressure too low Verify operating pressure will supply torque needed to operate valve correct...

Страница 13: ...e the grease fittings if applicable incorporated into the torque module of your actuator to apply additional lubricant The frequency of this lubrication will depend on the application of the actuator For any questions regarding the frequency of this operation or appropriate lubrication compounds contact your Bettis distributor WARNING DO NOT DISASSEMBLE SPRINGPAQTM Take a moment to view the Spring...

Страница 14: ...y are flush with the ends of the tie rods If there is still force pushing outward on the end cap at this point a dangerous condition may exist A travel stop or override device may be putting pressure on the springs or there may be component damage Fully removing the tie rod nuts in this condition may allow the springs to dangerously decompress Do not continue further until it is assured that the u...

Страница 15: ...on Seal Replacement 1 Exhaust all pressure and disconnect all supply lines 2 Loosen all tie rod nuts until they are flush with the ends of the tie rods 3 Check that there is no pressure against the end cap by verifying that the end cap is not being forced against the tie rod nuts WARNING EXHAUST ALL PRESSURE AGAINST END CAP If there is force against the end cap stop Do not continue further until i...

Страница 16: ...he correct Bettis approved lubricant if they are replaced Figure 10 Piston O ring Wiper Ring Piston Bolt 7 Inspect the piston bolt for any wear or corrosion pitting cracking If either cylinder seal is deformed or cut replace it If excessive wear or corrosion is apparent a new actuator or actuator components may be necessary 8 Lubricate the internal surface of the cylinder with a light coat of the ...

Страница 17: ... seal groove of the end cap with the cylinder seal still in place between the cylinder and the end cap Figure 11 10 Secure the end cap with the tie rod hex nuts you removed in step two Hand tighten and then torque the hex nuts to half and then full values according to the table below using the pattern designated Table 3 Cylinder Size In Ft Lbs Nm 6 15 20 8 35 48 10 35 48 12 35 48 16 56 76 20 58 79...

Страница 18: ...e Maintenance Figure 12 4 Bolt Pattern 1 4 2 3 1 3 5 2 4 6 6 Bolt Pattern 12 Bolt Pattern 1 11 3 7 9 5 2 12 4 8 10 6 10 Bolt Pattern 1 8 10 5 3 7 2 9 6 4 8 Bolt Pattern 1 2 3 4 5 6 7 8 11 Complete steps 1 to 10 on the second force module of the actuator 12 Leak Test 13 Reinstate the actuator to service ...

Страница 19: ... The following steps can be followed to replace the yoke seal and or bushings 1 Depressurize the actuator and remove all supply lines 2 Remove the actuator from the valve 3 Ensure lockout if provided is disengaged 4 Remove the hex nuts which secure the force modules to the torque module of the actuator Do this for both force modules Figure 13 5 Separate the force modules from the torque module Thi...

Страница 20: ...ts and bolts securing the two halves of the body together Figure 15 7 Separate the two halves of the body This may require the use of a pry bar as the joint between the body halves is filled with sealant during assembly 8 Remove the yoke from the bottom half of the torque module Figure 16 Top Body Plate Yoke Assembly Bottom Body Plate ...

Страница 21: ...lly inspect the body slots as well as the pins and rollers on the clevises for wear If excessive wear is present new slide inserts if applicable pins rollers or a new actuator may be necessary for further safe reliable operation 11 Remove the original sealant from the joining edges of the two separate halves of the body 12 Position the yoke as shown below This will allow the pins and rollers of th...

Страница 22: ...he torque module simultaneously to ensure that both are joined correctly with the torque module 16 Coat the threads of the hex nuts removed in step four with medium strength thread locker and secure the force modules to the torque module with the hex nuts Torque the nuts to the corresponding value in the table below Table 4 Model Ft Lbs Nm 2200 2250 2300 120 163 2375 2488 235 318 2575 400 542 17 T...

Страница 23: ...of the force mod ule This will cause the piston bolt to protrude from the force module and allow the user to inspect it 3 Inspect the piston bolt clevis pin and rollers for wear This includes any pitting or cracking Replace the necessary components Spare parts may be obtained through your Bettis distributor 4 Apply heat to break the thread locker on the set screw 5 To replace pins or rollers remov...

Страница 24: ...approved lubricant and reassemble them Apply high strength thread locker Align pin slot with hole in the clevis and install set screw torque the pin set screw to the corresponding value in the table below Table 5 Model Ft Lbs Nm 2200 35 4 2250 44 5 2300 2375 106 12 2488 2575 212 24 Figure 22 7 Repeat steps 2 to 6 of this Section on the second force module 8 Repeat steps 16 to 19 of Section 4 5 ...

Страница 25: ...Installation Operation and Maintenance Manual RGS011110 3 Rev 0 November 2015 22 Appendix Appendix Appendix A A 1 Force Module 1 2 3 9 19 17 16 15 22 18 25 23 24 21 13 14 12 11 4 6 7 20 10 5 8 ...

Страница 26: ... 3 Pin Set Screw 4 Yoke Roller 5 Clevis 6 Hex Nut FM Mount 7 Stud 8 Hex Nut Tie Rod 9 Safety Collar 10 Spring Retainer 11 External Spring s 12 Internal Spring s 13 Piston Set Screw 14 Piston Bolt 15 Piston 16 Wiper Ring 17 Piston O ring 18 Cylinder 19 Tie Rod 20 Cylinder Seal 21 End Cap 22 Tie Rod Nut 23 Travel Stop A 24 Travel Stop O ring 25 Travel Stop Nut A ...

Страница 27: ...Installation Operation and Maintenance Manual RGS011110 3 Rev 0 November 2015 24 Appendix Appendix A 2 Torque Module 3 4 5 6 7 15 12 8 14 13 1 9 11 2 10 ...

Страница 28: ...ix 4 6 2 Torque Module Part Number Number Part 1 Travel Stop B 2 Travel Stops Nut B 3 Top Hat Mounting Bolt 4 Top Hat Bolt 5 Top Hat 6 Top Hat Indicator 7 Top Hat Base 8 Body Assembly Bolt 9 Yoke Bushing 10 Body Assembly Nuts 11 Yoke O ring 12 Yoke Thrust Washer 13 Body Bottom 14 Yoke 15 Body Top ...

Страница 29: ......

Страница 30: ...966 3 340 8650 F 966 3 340 8790 24 Angus Crescent Longmeadow Business Estate East P O Box 6908 Greenstone 1616 Modderfontein Extension 5 South Africa T 27 11 451 3700 F 27 11 451 3800 EUROPE Berenyi u 72 100 Videoton Industry Park Building 230 Székesfehérvár 8000 Hungary T 36 22 53 09 50 F 36 22 54 37 00 www emerson com bettis 2017 Emerson All rights reserved The Emerson logo is a trademark and se...

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