Summary of Contents for Emerson Bettis GVO-HP-SR Linear
- Page 1 Installation, Operation and Maintenance Manual E-90090007 Rev. 0 April 2022 Bettis GVO-HP-SR/FS Linear Gate Valve Operator...
- Page 2 Notes Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 This page is intentionally left blank...
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Page 3: Table Of Contents
Installation, Operation and Maintenance Manual Table of Contents E-90090007 Rev. 0 April 2022 Table of Contents Section 1: Safety Warning Safety Warning......................1 Section 2: Introduction General Service Information ................2 Definition of Terms ..................2 Scope ......................3 Model Identification ..................3 Section 3: Storage Instructions Storage Instructions....................5 Section 4: Operation... - Page 4 Table of Contents Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Section 8: Operator End Stop Adjustment SR - End Stop Adjustment Conditions ............29 FS - End Stop Adjustment Conditions............30 Section 9: Testing and Troubleshooting Testing ......................33 Troubleshooting ..................
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Page 5: Section 1: Safety Warning
Installation, Operation and Maintenance Manual Section 1: Safety Warning E-90090007 Rev. 0 April 2022 Section 1: Safety Warning All personnel involved should read and understand all applicable sections of this manual before attempting to install, operate, service, or perform maintenance on any operators. Adhere to any tags, warning labels, or instructions present on the operator. -
Page 6: Section 2: Introduction
Section 2: Introduction Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Section 2: Introduction General Service Information This Installation, Operation and Maintenance (IOM) manual is for Bettis™ GVO Series Hydraulic Spring-Return Valve Operator (type SR or FS). Failure to comply with installation, operation, and maintenance instructions will void the warranty and may result in severe injury and/or property damage. -
Page 7: Scope
Installation, Operation and Maintenance Manual Section 2: Introduction E-90090007 Rev. 0 April 2022 Scope This manual is a resource for technicians involved in the installation, operation, and maintenance of Bettis™ GVO Series Hydraulic Spring-Return Valve Operators (type SR or FS). It serves as a guide and must be thoroughly understood prior to any work on the operators. - Page 8 Section 2: Introduction Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 The catalog lists standard models intended to cover a wide range of sizes and applications. Customers can use Figure 2 to identify the key operator characteristics. If not included in the catalog lists, custom designed models are also available for specialized thrust or stroke requirements or those beyond the scope of this listing (including linear hydraulic operated operators).
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Page 9: Section 3: Storage Instructions
Installation, Operation and Maintenance Manual Section 3: Storage Instructions E-90090007 Rev. 0 April 2022 Section 3: Storage Instructions Proper storage is required when the operator will not be used immediately. Remove all dirt, dust, grease, and contaminants from the exposed drive rod (1) surface by using a soft cloth dampened with an appropriate oil-based solvent. -
Page 10: Section 4: Operation
Section 4: Operation Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Section 4: Operation SR Operator SR type operator contains spring which is located above the piston. Therefore, under spring stroke, spring force will act on the piston to push the drive rod (1) into fully extended position. -
Page 11: Section 5: Preparation
Installation, Operation and Maintenance Manual Section 5: Preparation E-90090007 Rev. 0 April 2022 Section 5: Preparation Before beginning to work (installation, operation, or maintenance) on the operator, please be sure to read through all the applicable sections of the manual to ensure that you are familiar with the expected sequence of events. -
Page 12: Pre-Installation Verification
Section 5: Preparation Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Pre-Installation Verification NOTE: GVO linear operators shipped mounted to valves have their travel adjusted properly by the manufacturer and do not require further adjustment. Install valve with GVO linear operator directly in line. - Page 13 Installation, Operation and Maintenance Manual Section 5: Preparation E-90090007 Rev. 0 April 2022 Figure 4 Measurement of Travel Adjustment for Valve and Operator Mark #2 Mark #1 Mark #3 Mark #4 Preparation...
- Page 14 Section 5: Preparation Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Drive the valve stem fully into the valve body, ensuring that it is fully retracted (consult valve manufacturer for procedure if required). If equipped, remove valve lever, handwheel, gear and/or jam nut/stop nut per valve manufacturer instructions.
- Page 15 Installation, Operation and Maintenance Manual Section 5: Preparation E-90090007 Rev. 0 April 2022 Actuate the operator (spring stroke) to fully retract the drive rod (1). Mark on the drive rod (1) where it and the bottom of the cylinder plate (4) align (do not damage the drive rod’s OD sealing surface).
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Page 16: Section 6: Installation
Section 6: Installation Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Section 6: Installation Notes CAUTION The areas inside the pedestal around the connector are PINCH POINTS for hands and fingers. CAUTION Line pressure can cause a valve to open or close unexpectedly. It is recommended for the installation to be performed on the valve with no pressure in the line. -
Page 17: Lifting
Installation, Operation and Maintenance Manual Section 6: Installation E-90090007 Rev. 0 April 2022 Lifting CAUTION The operator’s built-in lifting lugs/eyes are designed with the capacity to lift the GVO operator and the pedestal. Additional lifting support is required to lift the operator with a valve attached. -
Page 18: Installation
Section 6: Installation Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Installation 6.3.1 Operator Installation For closed pedestal operators, removal of the window(s) from the operator pedestal is required to provide access to the connector. Complete the measurements in Section 5.2 to aid in the assembly of operator to valve and to ensure that the end stop is set properly. - Page 19 Installation, Operation and Maintenance Manual Section 6: Installation E-90090007 Rev. 0 April 2022 Condition A: Valve Stem Extended/Operator Drive Rod Retracted (typically FS style operator with drive rod retracted into cylinder) Method 1: Apply anti-seize to valve stem thread. With the operator’s drive rod (1) fully retracted, lower the operator until the stem nut section contacts the valve stem.
- Page 20 Section 6: Installation Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Method 2: NOTE: The following Method 2 may be used if it is possible to get a hand/wrench into the pedestal (if so equipped) to turn the stem nut section onto the valve stem. If this is not possible, then use Method 1 above.
- Page 21 Installation, Operation and Maintenance Manual Section 6: Installation E-90090007 Rev. 0 April 2022 Condition B: Valve Stem Retracted/Operator Drive Rod Extended (typically SR style operator with drive rod fully extended) Method 1: Apply anti-seize to valve stem thread. Spin/rotate the operator around the valve stem to engage the valve stem into the stem nut while slowly lowering the operator.
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Page 22: Section 7: Maintenance
Section 7: Maintenance Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Section 7: Maintenance Regular Maintenance • If possible, remove line pressure prior to any maintenance. • Under normal operating conditions, the only servicing required is seal and gasket replacement. - Page 23 Installation, Operation and Maintenance Manual Section 7: Maintenance E-90090007 Rev. 0 April 2022 NOTE: Type FS style operator is used for illustration. Follow the same instruction for SR style operator (except for spring function). Please follow the steps below for FS/SR Operators: Make sure power supply is shut off and pressure is released from the operator and controls prior to disassembly.
- Page 24 Section 7: Maintenance Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Figure 6 Markings for Maintenance Mark A Mark B Table 3. Parts List Item Description Drive Rod Cylinder Plate End Cap Piston Cylinder Connector Assembly Compression Spring Maintenance...
- Page 25 Installation, Operation and Maintenance Manual Section 7: Maintenance E-90090007 Rev. 0 April 2022 Mark the end stop (32) engaged position on top of end cap (8). For FS Type Operator: NOTE: Operator is under spring load. Remove the end stop completely to reduce the spring load during disassembly to avoid injury.
- Page 26 Section 7: Maintenance Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 For SR Type Operator: Since spring load is not acting against the end stop (32), remove end stop cover (33) directly and mark the end stop (32) engaged position to facilitate reassembly. Mark the port and tubing locations to facilitate reassembly.
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Page 27: Inspection And Cleaning
Installation, Operation and Maintenance Manual Section 7: Maintenance E-90090007 Rev. 0 April 2022 NOTE: For FS operator, the spring cartridge located below the piston can only be removed after piston and drive rod is removed from the operator. Go to the next step (that is step 11) if the piston center seal (52) will not be replaced. -
Page 28: Reassembly
Make sure all operator component parts are cleaned and lubricated (if required) prior to installing seals. Use only new replacement seals (available as an operator-specific kit from Emerson Process Management). Lubricate seals, rods, and cylinder bore with a generous amount of recommended grease. - Page 29 Installation, Operation and Maintenance Manual Section 7: Maintenance E-90090007 Rev. 0 April 2022 If using a jacknut, install the jacknut handtight. Then, install the jackscrews (make sure to apply Loctite or equivalent) in a diagonal pattern and refer to Table 5 for torque specifications. Table 5.
- Page 30 Section 7: Maintenance Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Apply anti-seize compound on the threads of stay rods (22) before installing to cylinder plate. Tighten stay rod nuts (91) evenly, progressing from nut to nut diagonally (not to adjacent nuts) until all nuts are torqued. Table 6 provides the required tightening torques for the stay rod nuts.
- Page 31 Installation, Operation and Maintenance Manual Section 7: Maintenance E-90090007 Rev. 0 April 2022 NOTE: Apply anti-seize and thread stem nut onto valve stem to “MARK B” (made in Section 7.2). Secure stem nut with two hex socket setscrews (98). Check operator travel by slowly moving the operator to fully retract drive rod (1). Verify that “MARK A”...
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Page 32: Section 8: Operator End Stop Adjustment
Section 8: Operator End Stop Adjustment Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Section 8: Operator End Stop Adjustment NOTE: GVO linear operators are shipped with their travel adjusted based on the valve topworks (if available). Adjustment may require if the pre-installation verification (Section 5.2) indicates that MOT is larger than MVT. -
Page 33: Sr - End Stop Adjustment Conditions
Section 8: Operator End Stop Adjustment Installation, Operation and Maintenance Manual E-90090007 Rev. 0 April 2022 SR - End Stop Adjustment Conditions Condition A: MOT is more than MVT, which means travel stops on valve instead of operator. NOTE: In Condition A, the operator travel needs to be decreased to have valve stroke limited by operator internal stops. -
Page 34: Fs - End Stop Adjustment Conditions
Section 8: Operator End Stop Adjustment Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Condition B: MOT is less than MVT by more than 1 full pitch of valve stem thread, which means potential leakage due to under travel of valve. NOTE: In Condition B, the operator travel needs to be increased to maximize valve travel. - Page 35 Section 8: Operator End Stop Adjustment Installation, Operation and Maintenance Manual E-90090007 Rev. 0 April 2022 Condition A: MOT is more than MVT, which means travel stops on valve instead of operator. NOTE: In Condition A, the operator travel needs to be decreased to have valve stroke limited by operator internal stops.
- Page 36 Section 8: Operator End Stop Adjustment Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Condition B: MOT is less than MVT by more than 1 full pitch of valve stem thread, which means potential leakage due to under travel of valve. NOTE: In Condition B, the operator travel needs to be increased to maximize valve travel.
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Page 37: Section 9: Testing And Troubleshooting
Installation, Operation and Maintenance Manual Section 9: Testing and Troubleshooting E-90090007 Rev. 0 April 2022 Section 9: Testing and Troubleshooting Testing System operation and performance should be tested and noted regularly to detect the problem in early stage. Use the following section to trace the source of problems before proceeding to a major operator overhaul (the operator itself is generally the least likely component to malfunction and requires the most time and effort to service). - Page 38 Section 9: Testing and Troubleshooting Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 CHECK FOR EXTERNAL LEAKAGE NOTE: The assumption below is control components and all joining fittings have been verified and confirmed that the symptoms (leakage) are not caused by control components and all joining fittings.
- Page 39 Installation, Operation and Maintenance Manual Section 9: Testing and Troubleshooting E-90090007 Rev. 0 April 2022 CHECK FOR INTERNAL LEAKAGE • With pressure applied to the power stroke side of the operator (end cap side for style FS operator and cylinder plate side for style SR operator), check for leakage (blow-by) from breather/vent port of the opposite (spring) side.
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Page 40: Section 10: Document Revision
Section 10: Document Revision Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Section 10: Document Revision Table 7. Revision Overview Date Status Released Compiled June 2014 Reviewed Checked Approved Approved April 2022 Migration to New Template Approved J. Carroll Document Revision... -
Page 41: List Of Tables
Installation, Operation and Maintenance Manual List of Tables E-90090007 Rev. 0 April 2022 List of Tables Table 1 Definition of Terms ..................2 Table 2 Parts List......................3 Table 3 Parts List......................20 Table 4 Specification of Piston Hex Nut Tightening Torque ........24 Table 5 Specification of Jackscrew in Jacknut Tightening Torque.......25 Table 6... -
Page 42: List Of Figures
List of Figures Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 List of Figures Figure 1 Typical Assembly of GVO-HP-SR ..............3 Figure 2 Linear Valve Operator Model Designation ............4 Figure 3 Linear Valve Operator Serial Number ............. 4 Figure 4 Measurement of Travel Adjustment for Valve and Operator ...... -
Page 43: Appendix A: List Of Drawings
Installation, Operation and Maintenance Manual Appendix E-90090007 Rev. 0 April 2022 Appendix A: List of Drawings Typical Assembly GVO-HP-SR Figure A-1 Typical Assembly GVO-HP-SR Appendix... - Page 44 Appendix Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Table A-1. Parts List Item Description Note Drive Rod End Cap Piston Cylinder Stay Rod End Stop End Stop Cover Lifting Lug Rod Guide Piston Wear Ring Wiper Ring O-Ring O-Ring O-Ring...
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Page 45: Typical Assembly Gvo-Hp-Fs
Installation, Operation and Maintenance Manual Appendix E-90090007 Rev. 0 April 2022 Typical Assembly GVO-HP-FS Figure A-1 Typical Assembly GVO-HP-FS Appendix... - Page 46 Appendix Installation, Operation and Maintenance Manual April 2022 E-90090007 Rev. 0 Table A-2. Parts List Item Description Note Drive Rod End Cap Piston Cylinder Stay Rod End Stop End Stop Cover Lifting Lug Rod Guide Piston Wear Ring Wiper Ring O-Ring O-Ring O-Ring...
- Page 47 Installation, Operation and Maintenance Manual Notes E-90090007 Rev. 0 April 2022 This page is intentionally left blank...
- Page 48 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.