Emerson Bettis RGS Q Series Installation, Operation And Maintenance Manual
Stainless steel spring-return actuators single and double-cylinder types
Hide thumbs
Also See for Bettis RGS Q Series:
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 September 2015 Bettis RGS Q-Series Stainless Steel Spring-Return Actuators Single and Double-Cylinder Types...
-
Page 3: Table Of Contents
Installation, Operation and Maintenance Manual Table of Contents RGS011110-1 Rev. 0 September 2015 Table of Contents Section 1: Overview �������������������������������������������������������������1 Section 2: Installation �����������������������������������������������������������3 Section 3: Piping ������������������������������������������������������������������6 Single-Cylinder Types (Sizes 03, 04, 07 and 12) ..........6 Double-Cylinder Types (Sizes 05, 10 and 14) ..........6 Section 4: Travel Adjustment ������������������������������������������������7 Single-Cylinder Types (Sizes 03, 04, 07 and 12) .......... -
Page 4: Section 1: Overview
Installation, Operation and Maintenance Manual Section 1: Overview September 2015 RGS011110-1 Rev. 0 Section 1: Overview All Bettis RGS Q-Series actuators are designed and built with the intent that they will last forever. Numerous design features reduce friction for enhanced operation, less wear and longer life. - Page 5 Installation, Operation and Maintenance Manual Section 1: Overview RGS011110-1 Rev. 0 September 2015 Figure 3 Single-Cylinder Model Section View Figure 4 Double-Cylinder Model Section View NOTE: Single and Double-Cylinder models are identical except for the cylinder quantity. Overview...
-
Page 6: Section 2: Installation
Section 2: Installation Installation, Operation and Maintenance Manual September 2015 RGS011110-1 Rev. 0 Section 2: Installation • Bettis RGS Q-Series actuators may be installed in any position/orientation. Figure 5 Clockwise Shaft Rotation In this view, the spring causes clockwise shaft rotation� Figure 6 Counterclockwise Shaft Rotation In this view, the spring causes... - Page 7 Installation, Operation and Maintenance Manual Section 2: Installation RGS011110-1 Rev. 0 September 2015 Figure 7 NAMUR Mounting Pad • Sizes 03, 04 and 05 have minimal body size, thus plate adapters provide the NAMUR mounting pattern. All other sizes incorporate NAMUR mounting pat- terns directly in the body machining - on both faces.
- Page 8 Section 2: Installation Installation, Operation and Maintenance Manual September 2015 RGS011110-1 Rev. 0 Figure 10 Sizes 07, 10, 12, 14 With UMP • UMPs are a standard option that permits actuator mounting bolt patterns to match that of the user’s valve or to replicate the dimensions of a competitor’s actuator for ease of replacement.
-
Page 9: Section 3: Piping
Installation, Operation and Maintenance Manual Section 3: Piping RGS011110-1 Rev. 0 September 2015 Section 3: Piping 3�1 Single-Cylinder Types (Sizes 03, 04, 07 and 12) Figure 11 Single-Cylinder Types (Sizes 03, 04, 07 and 12) Pressure ports Tube single port to the pressure source� Apply pressure to push piston inward�... -
Page 10: Section 4: Travel Adjustment
Installation, Operation and Maintenance Manual Section 4: Travel Adjustment September 2015 RGS011110-1 Rev. 0 Section 4: Travel Adjustment 4�1 Single-Cylinder Types (Sizes 03, 04, 07 and 12) • Travel adjustment screws are located on the end cap and the body. •... -
Page 11: Inward Travel Adjustment
Installation, Operation and Maintenance Manual Section 4: Travel Adjustment RGS011110-1 Rev. 0 September 2015 4�4 Inward Travel Adjustment • Removal of both cylinders is required and multiple adjustments may be required - for this reason we recommend against attempting to adjust inward motion, preferring to achieve adjustment via bracket motion, followed by resetting the end cap travel screws. -
Page 12: Section 5: Operation
Installation, Operation and Maintenance Manual Section 5: Operation September 2015 RGS011110-1 Rev. 0 Section 5: Operation • Water and hydraulic fluids may be used to pressurized single and double-cylinder actuators, provided the seal materials were selected accordingly. • Air driven single-cylinder stainless-steel actuators with stainless-steel or Amalgon cylinders are not harmed by wet air (so long as freezing does not occur). -
Page 13: Section 6: Maintenance
Installation, Operation and Maintenance Manual Section 6: Maintenance RGS011110-1 Rev. 0 September 2015 Section 6: Maintenance 6�1 Piston Seal Replacement • All Bettis RGS Q-Series actuator piston seals may be replaced while the actuator remains in line. — This offers the advantage of not having to remove the actuator from the valve and eliminates concern about valve damage as a result of having to disengage the actuator and valve shafts. - Page 14 Installation, Operation and Maintenance Manual Section 6: Maintenance September 2015 RGS011110-1 Rev. 0 Remove travel stop adjustment screw, jam nut and O-ring. Figure 15 Travel Stop Screw, Nut and O-ring Travel Stop Screw, Nut and O-ring Remove tie rod nuts (tie rods should remain in place for convenience, but no harm occurs should they be removed as well) Figure 16 Tie Rod Nuts...
- Page 15 Installation, Operation and Maintenance Manual Section 6: Maintenance RGS011110-1 Rev. 0 September 2015 Remove end cap and end cap seal. The seal is PTFE unless specified otherwise at time of initial assembly. This is a compression seal and is encapsulated on 4 sides by the end cap and cylinder, allowing no cold flow nor wear.
- Page 16 Installation, Operation and Maintenance Manual Section 6: Maintenance September 2015 RGS011110-1 Rev. 0 Clean and inspect the cylinder bore. If damaged from contaminants, turn cylinder around to use the spare other end. Remove the piston O-ring clean groove, lubricate and install new O-ring. Inspect wiper ring, replace if damaged.
- Page 17 Installation, Operation and Maintenance Manual Section 6: Maintenance RGS011110-1 Rev. 0 September 2015 CAUTION: DO NOT DISASSEMBLE SPRINGPAQ ITSELF Take a moment to view the springpaq image. Note how the springpaq cannot expand (explode) when the end cap and cylinder are removed from the actuator. The piston and spring retainer contain the spring in its initial compressed position.
-
Page 18: Shaft Seal Replacement
Installation, Operation and Maintenance Manual Section 6: Maintenance September 2015 RGS011110-1 Rev. 0 6�2 Shaft Seal Replacement • Because Bettis RGS Q-Series actuator springs are located inward of the pistons, there is no pressure applied to the shaft seals. If they should wear, there is no negative consequence. - Page 19 Installation, Operation and Maintenance Manual Section 6: Maintenance RGS011110-1 Rev. 0 September 2015 6�2�1 Procedure Figure 22 Shaft Seal Replacement Shaft Retaining Ring Remove shaft retaining ring. Size 12 and 14 have locking rings, requiring care to prevent ring damage. Along with the ring is a thrust bushing. Push entire shaft assembly out through one side of body.
- Page 20 Installation, Operation and Maintenance Manual Section 6: Maintenance September 2015 RGS011110-1 Rev. 0 6�2�2 Reassembly Figure 23 Shaft Seal Reassembly OD O-ring Outer Bushing Shaft O-ring Inner Bushing Install saddle pins and bushings with rubber plugs at pin ends. Tighten set screws securely and evenly on each end.
- Page 22 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.
Need help?
Do you have a question about the Bettis RGS Q Series and is the answer not in the manual?
Questions and answers