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Summary of Contents for Bettis GVO-C Series
- Page 1 Operation and Maintenance Manual GVO-CLP-SR.IOM.1003 Rev. 0 March 2016 Bettis GVO-C Series GVO-CLP-SR Pneumatic Actuators...
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Page 3: Table Of Contents
Operation and Maintenance Manual Table of Contents GVO-CLP-SR.IOM.1003 Rev. 0 March 2016 Table of Contents Section 1: Introduction ��������������������������������������������������������1 Section 2: Operation ������������������������������������������������������������2 Section 3: Maintenance Inspection of Gland and Barrel Seals ............3 Inspection of Piston Seals ................3 Section 4: Seal Replacement Fail-Close Actuators .................. -
Page 4: Section 1: Introduction
GVO-CLP-SR.IOM.1003 Rev. 0 Section 1: Introduction Bettis GVO-C Linear valve actuator has been designed to meet a wide variety of applications. It has been manufactured to close tolerances and specifications and has been factory inspected and tested prior to shipment. Each actuator is identified with a unique serial number for reference when ordering replacement parts. -
Page 5: Section 2: Operation
Operation and Maintenance Manual Section 2: Operation GVO-CLP-SR.IOM.1003 Rev. 0 March 2016 Section 2: Operation Use only filtered, pressure regulated and lubricated air to operate the actuator. The air must be filtered to remove all contaminants in excess of 30 microns particle size. Lubrication is recommended to reduce component friction and maximize seal life. -
Page 6: Section 3: Maintenance
GVO-CLP-SR.IOM.1003 Rev. 0 Section 3: Maintenance Bettis GVO-C Linear actuator has been designed to give you trouble free performance with a minimum of maintenance. Periodic inspection and replacement of seals, when required, is recommended in order to ensure continued product safety and reliability. -
Page 7: Section 4: Seal Replacement
Operation and Maintenance Manual Section 4: Seal Replacement GVO-CLP-SR.IOM.1003 Rev. 0 March 2016 Section 4: Seal Replacement 1� Make sure line pressure is shut off before disconnecting actuator from the valve. Remove the actuator to a clean working area. Remove all accessories installed on the cylinder (solenoid valves, filter-regulators, manual override jacks, and others). -
Page 8: Fail-Open Actuators
Section 4: Seal Replacement Operation and Maintenance Manual March 2016 GVO-CLP-SR.IOM.1003 Rev. 0 4�2 Fail-Open Actuators Remove the protective cover located on the canister top end. Unscrew the nut attaching the shaft to the top spring guiding piston. Unscrew the mounting bolts attaching the canister to the cylinder. This operation can be done in all safety, without any special precaution. -
Page 9: Reassembling The Actuator
Operation and Maintenance Manual Section 4: Seal Replacement GVO-CLP-SR.IOM.1003 Rev. 0 March 2016 4�3 Reassembling the Actuator Carefully clean all components, grooves and surfaces prior to reassembly. Use compressed air to remove all solid particles. Apply a light coat of grease (ESSO LIDOK EP2 or equivalent) to all packing and seal grooves. - Page 10 Section 4: Seal Replacement Operation and Maintenance Manual March 2016 GVO-CLP-SR.IOM.1003 Rev. 0 Figure 1 Tie Rod Nut Torquing Sequence Table 1� Torque Values Cylinder Bore Number of Diameter of Torque (lb-ft) (Inches) Tie Rods Tie Rods (Inches) (No Lubrication) Seal Replacement...
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Page 11: Section 5: Seal-Kit Selection
Operation and Maintenance Manual Section 5: Seal-Kit Selection GVO-CLP-SR.IOM.1003 Rev. 0 March 2016 Section 5: Seal-Kit Selection Use genuine parts only to ensure proper fit and function for continuous trouble free operation. In order to supply you with the appropriate seal-kit for your actuator, we require the part number and the serial number shown on the identification tag located on the barrel of the actuator. -
Page 12: Section 6: Storage Condition
GVO-CLP-SR.IOM.1003 Rev. 0 Section 6: Storage Condition Bettis GVO-C Linear pneumatic valve actuators are shipped pre-lubricated, with exposed machined parts protected against corrosion. Piston rods and extended tie rods are protected against physical damage with polyurethane mesh sleeving. Air supply ports are protected with plastic cap plugs. - Page 14 No. 9 Gul Road 1616 Modderfontein Extension 5 #01-02 Singapore 629361 South Africa T +65 6777 8211 T +27 11 451 3700 www.emerson.com/bettis No. 1 Lai Yuan Road EUROPE Wuqing Development Area ©2018 Emerson. All rights reserved. Tianjin 301700 Holland Fasor 6 P.
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