Related Manuals for Emerson Bettis RGS Q-Series
Summary of Contents for Emerson Bettis RGS Q-Series
- Page 1 Installation, Operation and Maintenance Manual RGS011110-1 Rev. 0 November 2015 Bettis RGS Q-Series Double-Acting Actuators...
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Page 3: Table Of Contents
Installation, Operation and Maintenance Manual Table of Contents RGS011110-1 Rev. 0 November 2015 Table of Contents Section 1: Overview ��������������������������������������������������������������1 Section 2: Installation �����������������������������������������������������������2 Valve Attachment ..................3 Accessory Mounting ..................4 Piping and Operation ................... 4 Travel Adjustment ..................7 Section 3: Troubleshooting ������������������������������������������������10 Section 4: Maintenance Periodic Maintenance Schedule ..............11... -
Page 4: Section 1: Overview
All activities must be carried out in order to ensure proper actuator operation. Always read all instructions before beginning maintenance. Bettis RGS Q-Series actuators are composed of two or three basic sub-assemblies, one or two force modules and a torque module. The force module contains the piston and rack which provide linear motion. -
Page 5: Section 2: Installation
Installation, Operation and Maintenance Manual Section 2: Installation RGS011110-1 Rev. 0 November 2015 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. -
Page 6: Valve Attachment
Section 2: Installation Installation, Operation and Maintenance Manual November 2015 RGS011110-1 Rev. 0 Threaded Lifting Eyes Lifting eyes may be threaded into the body section and be used to lift the actuator. Figure 2 2�1 Valve Attachment NOTE: Prior to mounting the actuator, verify alignment of coupler and shaft to ensure that the valve will move to correct position. -
Page 7: Accessory Mounting
2�3 Piping and Operation The operation of a Bettis RGS Q-Series Double-Acting (DA) actuator is comparable to any double-acting rack and pinion actuator. Instrument air, water, and other power gases and fluids may be used to cycle the actuator so long as construction materials were chosen accordingly during assembly and maximum allowable pressure is not exceeded. -
Page 8: Figure
Section 2: Installation Installation, Operation and Maintenance Manual November 2015 RGS011110-1 Rev. 0 All Bettis actuators are shipped in the fail clockwise (Left-Hand) orientation unless ordered as fail counterclockwise (Right-Hand). The orientation may be reversed in the field by moving all accessories to the opposite side of the shaft and turning the actuator top–side down. -
Page 9: Figure
Installation, Operation and Maintenance Manual Section 2: Installation RGS011110-1 Rev. 0 November 2015 Figure 4 205DA, 210DA, 214DA Figure 5 203DA, 204DA, 207DA, 212DA Installation... -
Page 10: Travel Adjustment
Section 2: Installation Installation, Operation and Maintenance Manual November 2015 RGS011110-1 Rev. 0 2�4 Travel Adjustment The following instructions are for Left-Hand orientated actuators. For non-standard models, clockwise and counterclockwise motion will be the inverse of what is described below. Check the actuator model and orientation before adjusting the Travel Stops. Figure 6 Travel Stop Travel Stop... -
Page 11: November
Installation, Operation and Maintenance Manual Section 2: Installation RGS011110-1 Rev. 0 November 2015 Set Clockwise Rotation (Travel Stop(s) A) Relieve all pressure from the actuator. Loosen Travel Stop Nut(s) on Travel Stop(s) A. Be careful not to misplace the travel stop O-ring(s). Ensure actuator lockout (if provided) is disengaged.* Single Cylinder Actuators: Adjust Travel Stop A until set at the desired position. -
Page 12: Travel Stop B
Section 2: Installation Installation, Operation and Maintenance Manual November 2015 RGS011110-1 Rev. 0 Set Counterclockwise Rotation (Travel Stop(s) B) Relieve all pressure from the actuator. Ensure actuator lockout (if provided) is disengaged.* Single Cylinder Actuators: Loosen the travel stop nut on Travel Stop B. Be careful not to misplace the travel stop O-ring. -
Page 13: Section 3: Troubleshooting
Installation, Operation and Maintenance Manual Section 3: Troubleshooting RGS011110-1 Rev. 0 November 2015 Section 3: Troubleshooting Table 3� ISSUE CAUSE SOLUTION Verify operating pressure is Supply pressure too low correct Irregular or Stuttering Stroke Worn internal components See Section 4.4 to 4.5 Damaged or valve Consult valve manufacturer Tighten travel stop nut with... -
Page 14: Section 4: Maintenance
Installation, Operation and Maintenance Manual Section 4: Maintenance November 2015 RGS011110-1 Rev. 0 Section 4: Maintenance 4�1 Periodic Maintenance Schedule General service actuators do not require periodic maintenance. Severe service actuators may require periodic maintenance based on operating conditions. Severe service may include but is not limited to high speed, high cycle, highly corrosive, explosive atmosphere, and others. -
Page 15: Maintenance Kit
Installation, Operation and Maintenance Manual Section 4: Maintenance RGS011110-1 Rev. 0 November 2015 4�3 Maintenance Kit To purchase your actuator maintenance kit, contact your Bettis distributor. Please have the serial number of your actuator available. This number may be found on the actuator label or stamped into the body of the actuator. -
Page 16: Installation
Installation, Operation and Maintenance Manual Section 4: Maintenance November 2015 RGS011110-1 Rev. 0 Replace the piston O-ring and wiper ring as needed. Be sure to lubricate the new O-ring and wiper ring with the correct Bettis approved lubricant if they are replaced. -
Page 17: Installation
Installation, Operation and Maintenance Manual Section 4: Maintenance RGS011110-1 Rev. 0 November 2015 Place the end cap back over the tie rods. Be sure that the cylinder is seated in the cylinder seal groove of the end cap with the cylinder seal still in place between the cylinder and the end cap. -
Page 18: Body Maintenance
Installation, Operation and Maintenance Manual Section 4: Maintenance November 2015 RGS011110-1 Rev. 0 4�5 Body Maintenance To perform this maintenance, the actuator must be removed from the valve. Follow Section 4.5, Steps 1 to 5. Remove the top hat assembly by removing the top hat mounting bolts. Figure 13 Remove the piston assembly(s) by pulling away from body of actuator. - Page 19 Installation, Operation and Maintenance Manual Section 4: Maintenance RGS011110-1 Rev. 0 November 2015 Figure 15 Push shaft through top of shaft hole (shaft will only exit body in one direction). If necessary, a drive key may be inserted into the bottom of the shaft and tapped with a hammer to free the shaft from the body.
- Page 20 Installation, Operation and Maintenance Manual Section 4: Maintenance November 2015 RGS011110-1 Rev. 0 Reassembly: Lubricate and install O-ring(s), saddle pin(s), saddle pin thrust washers and roller(s). Lightly coat all O-rings and bushings with lubricant. Install O-rings on internal and external surfaces of bushing(s) in respective O-ring grooves.
- Page 21 Installation, Operation and Maintenance Manual Section 4: Maintenance RGS011110-1 Rev. 0 November 2015 Place shaft shoulder washer on top of bushing and insert shaft through top of shaft hole (shaft shoulder washers not applicable for 203, 204, and 205 models). Figure 19 Insert second shaft shoulder washer on top of shaft, followed by bushing (already containing both O-rings) again with external O-ring closer to the center...
- Page 22 Installation, Operation and Maintenance Manual Section 4: Maintenance November 2015 RGS011110-1 Rev. 0 Figure 20 Internal O-ring External O-ring Bushing Shoulder Washer Shaft Shoulder Washer Bushing External O-ring Internal O-ring Place thrust washer (not applicable on 203, 204, 205) on top of bushing followed by retaining ring.
- Page 23 Installation, Operation and Maintenance Manual Section 4: Maintenance RGS011110-1 Rev. 0 November 2015 Figure 21 NPT Pressure Port Shaft Positioning Markers Shaft Positioning Markers NPT Pressure Port Q210, Q207 Q214, Q212 Shaft Positioning Marker NPT Pressure Port Shaft Positioning Markers NPT Pressure Port Q203 Q205, Q204...
- Page 24 Installation, Operation and Maintenance Manual Section 4: Maintenance November 2015 RGS011110-1 Rev. 0 Figure 22 Single Cylinder Models: Insert the piston and engage rack teeth with shaft teeth after ensuring proper alignment. Press inward on piston until the point of refusal. Dual Cylinder Models: Simultaneously insert the pistons and align teeth on racks and shafts.
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Page 25: Appendix
Installation, Operation and Maintenance Manual Appendix RGS011110-1 Rev. 0 November 2015 Appendix A: A�1 Dual Cylinder Model Appendix... -
Page 26: Installation
Installation, Operation and Maintenance Manual Appendix November 2015 RGS011110-1 Rev. 0 4�5�1 Dual Cylinder Model Part Number Number Part Piston Bolt Set Screw Shaft Shaft Shoulder Washer* Shaft Bushing Bushing External O-ring Bushing Internal O-ring Anti Rotate Washer* Retaining Ring Top Hat Bolt Top Hat Mounting Bolt Top Hat... -
Page 27: Single Cylinder Model
Installation, Operation and Maintenance Manual Appendix RGS011110-1 Rev. 0 November 2015 A�2 Single Cylinder Model Appendix... -
Page 28: November
Installation, Operation and Maintenance Manual Appendix November 2015 RGS011110-1 Rev. 0 4�5�2 Single Cylinder Model Part Number Number Part Body Travel Stop (B) Travel Stop O-ring (B) Travel Stop Nut (B) Shaft Shaft Shoulder Washer* Shaft Bushing Bushing External O-ring Bushing Internal O-ring Anti Rotate Washer* Retaining Ring... - Page 30 Tianjin 301700 Holland Fasor 6 P. R. China Székesfehérvár 8000 The Emerson logo is a trademark and service mark of Emerson Electric Co. T +86 22 8212 3300 Hungary Bettis is a mark of one of the Emerson family of companies.