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Содержание Bettis PressureGuard

Страница 1: ...Installation and Maintenance Manual E 90090005 Rev A March 2014 Bettis PressureGuard Self Contained Hydraulic Emergency Shutdown Systems For Rotary or Non API 6A Linear Valves ...

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Страница 3: ...vice Information 2 2 2 Definition of Terms 3 2 3 Scope 3 Section 3 Storage Instructions 4 Section 4 Operation 4 1 Manual Mode 6 4 2 Automatic Mode 7 4 3 Shutdown Mode 7 Section 5 Installation 8 Section 6 Maintenance 6 1 Regular Maintenance 13 6 2 Troubleshooting 14 Section 7 Document Revision 16 Appendix A List of Tables 17 Appendix B List of Figures 18 Appendix C List of Drawings 19 ...

Страница 4: ...supplied with control system Caustic gases and fluids may be contained in the operators and valves in most applications Vent all poisonous or flammable gases and store all liquids in a safe location to prevent personnel injury Discharge at sonic velocity may occur when venting or releasing pressure service personnel must utilize proper hearing protection The following are general instructions sinc...

Страница 5: ...pplication requirements Instructions for installing BETTIS PressureGuard system are provided in Section 5 Installation Under normal conditions BETTIS PressureGuard maintains the valve in its operational position by resisting the spring force with hydraulic fluid pressure In an event requiring automatic ESD valve operation the PressureGuard employs a control component to shift hydraulic fluid from ...

Страница 6: ...Hydraulic ESD Emergency Shutdown GVO Gate Valve Operator Series FS Fail Safe SR Spring Return HP High Pressure LP Low Pressure MAWP Maximum Allowable Working Pressure ID Inside Diameter OD Outside Diameter 2 3 Scope This manual is a resource for technicians involved in the installation operation and maintenance of Bettis PressureGuard It serves as a guide and must be thoroughly understood prior to...

Страница 7: ...urfaces 3 Any plastic plugs used to plug the pressure ports during assembly should be removed and replaced with steel plugs All controls should also be plugged with steel plugs NOTE Sealants such as pipe dope or Teflon tape should be applied to steel plug threads 4 Lightly lubricate all exposed threads and unpainted surfaces for example mounting surfaces 5 Cover the PressureGuard to prevent accumu...

Страница 8: ...ureGuard system it is critical to know its components and understand what they do Refer to Figure 1 SCH Module Portion of BETTISTM PressureGuard Figure 3 BETTISTM PressureGuard Schematic and Table 2 BETTISTM PressureGuard Components and Descriptions for components in BETTIS PressureGuard system Figure 1 SCH Module Portion of BETTIS PressureGuard ...

Страница 9: ...odes of Reset Valve 3 The resistance of the Handpump 3 to pumping will increase noticeably when the valve reaches its full operational position Pump approximately one half of additional stroke at this point The High Pressure Gauge 9 will read above the minimum operating pressure of the operator and if so equipped its needle will rest in the middle of the green band 4 At this point hydraulic fluid ...

Страница 10: ...de 1 Manual Shutdown Technician can manually close the valve by pushing down the toggle on the Reset Valve 23 or switching the Selector Valve to Manual Manually initiated shutdown mode will usually be used for servicing the pipeline of BETTIS PressureGuard system 2 Signal Devices a If the Pressure Pilot 14 senses that the pipeline pressure is outside the customer s defined setpoints it will releas...

Страница 11: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 8 Section 5 Installation Installation Section 5 Installation Figure 3 BETTIS PressureGuard Schematic ...

Страница 12: ...it 13 Low Pressure Relief Valve A low pressure relief valve protects control circuit from overpressurization caused by thermal expansion 14 Pressure Pilot Directly monitors pipeline pressure and can trip ESD ns Selector Valve Allows selection of automatic command via Pressure Pilot 14 and or Solenoid Valve 20 or manual command by technician at BETTIS PressureGuard using Reset Valve 23 and or Handp...

Страница 13: ... factory installed on the operator but can be field installed by the user NOTE Any hydraulic or electrical connections that need to be made in the field will be tagged at the factory Typical specifications of available SCH modules include Medium pressure SCH module with HP 2SC Handpump 275 psi MAWP Includes 0 to 600 psi HP gauge and 0 to 200 psi LP gauge HP Relief set at 275 psi LP Relief set at 1...

Страница 14: ...when requesting for parts To install in the field first mount the SCH to the operator using the provided brackets and mounting bolts Second make the hydraulic connections per the schematic in Figure 3 BETTISTM PressureGuard Schematic and the factory placed tagging Ports on the manifold assembly will be identified as H High pressure hydraulic supply to the operator L Low pressure hydraulic supply f...

Страница 15: ...aintenance manual applicable to the type of operator in the system Please refer to Table 3 Operators and IOM Manuals for this information Table 3 Operators and IOM Manuals Operator Type Installation Operation and Maintenance Manual Number E Series Rotary and Linear Operators I 0004 Rotary Gas Hydraulic Operator I 0006 Linear Gas Hydraulic Operator I 0021 Gate Valve Operator Type GVO LP FS SR E 900...

Страница 16: ...ice to the operator Failure to do so could result in equipment damage or serious personal injury NOTE Keep all elastomers and or replacement parts in original packaging until its ready to install Inspect all parts new or used for burrs sharp edges or damages prior to reassembly Special attention should be given to all sealing surfaces for damage All parts should be clean and properly lubricated pr...

Страница 17: ... 2 Troubleshooting 1 SCH Module Troubleshooting Any visible leaks from the SCH module should draw troubleshooting focus NOTE Figure 3 BETTISTM PressureGuard Schematic shows that the high pressure side of the system supplies the low pressure regulated side Therefore any leakage on the low pressure side will cause significant changes in high pressure gauge values in a short time period Depressurize ...

Страница 18: ...tor inspection cover plate and or tubing from the Cylinder plate port to observe any oil leakage across the Piston seal and the Piston center O ring In case of pumping problems access to pump suction valve is gained by removing the pump assembly from sub plate Pumping difficulties usually result from dirty ﬁlter element contaminated oil water methanol or incorrect fluid type Failure of the regulat...

Страница 19: ...E 90090005 Rev A 16 Section 7 Document Revision Document Revision Section 7 Document Revision Table 4 Revision Overview ECN DATE REV BY DATE Released March 2014 A COMPILED J Quilon March 2014 Reviewed CHECKED Approved APPROVED E Carrillo April 2014 ...

Страница 20: ...tenance Manual E 90090005 Rev A 17 Appendix Appendix Appendix A List of Tables Table 1 Definition of Terms 3 Table 2 BETTIS PressureGuard Components and Descriptions 9 Table 3 Operators and IOM Manuals 12 Table 4 Revision Overview 16 ...

Страница 21: ...n and Maintenance Manual E 90090005 Rev A 18 Appendix Appendix Appendix B List of Figures Figure 1 SCH Module Portion of BETTIS PressureGuard 5 Figure 2 Three Modes of Reset Valve 6 Figure 3 BETTIS PressureGuard Schematic 8 ...

Страница 22: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 19 Appendix Appendix Appendix C List of Drawings C 1 SCH Module and Components 1 ...

Страница 23: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 20 Appendix Appendix 2 ...

Страница 24: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 21 Appendix Appendix 3 ...

Страница 25: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 22 Appendix Appendix 4 ...

Страница 26: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 23 Appendix Appendix 5 ...

Страница 27: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 24 Appendix Appendix C 2 GVO FS Operator Cutaway and Components ...

Страница 28: ...March 2014 Installation and Maintenance Manual E 90090005 Rev A 25 Appendix Appendix C 3 Quarter Turn Operator Cutaway and Components 1 ...

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Страница 30: ...ongmeadow Business Estate East P O Box 6908 Greenstone 1616 Modderfontein Extension 5 South Africa T 27 11 451 3700 EUROPE Holland Fasor 6 Székesfehérvár 8000 Hungary T 36 22 53 09 50 Strada Biffi 165 29017 Fiorenzuola d Arda PC Italy T 39 0523 944 411 www emerson com bettis 2018 Emerson All rights reserved The Emerson logo is a trademark and service mark of Emerson Electric Co BettisTM is a mark ...

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