Baker Hughes Masoneilan 72000 Series, Instruction Manual

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Masoneilan 72000 Series Control Valves Instruction Manual | c
Copyright 2021 Baker Hughes Company. All rights reserved.
Table Of Contents
Safety Information ........................................................................................................................................................................................................1
About This Manual ..................................................................................................................................................................................................1
Warranty .................................................................................................................................................................................................................1
72000 Series Numbering System ................................................................................................................................................................................2
Introduction ...................................................................................................................................................................................................................3
Scope .....................................................................................................................................................................................................................3
Serial Plate .............................................................................................................................................................................................................3
After Sales Service .................................................................................................................................................................................................3
Spare Parts ............................................................................................................................................................................................................3
Actuator and Accessories .......................................................................................................................................................................................3
Unpacking .....................................................................................................................................................................................................................3
Installation .....................................................................................................................................................................................................................3
Piping Cleanliness ..................................................................................................................................................................................................3
Isolation Bypass Valve............................................................................................................................................................................................3
Heat Insulation .......................................................................................................................................................................................................4
Hydrostatic Testing and Line Cleaning ...................................................................................................................................................................4
Flow Direction .........................................................................................................................................................................................................4
Welded Connections ....................................................................................................................................................................................................4
Pre-Weld Preparation .....................................................................................................................................................................................................4
Welding Process .....................................................................................................................................................................................................4
Post Weld Cleaning and Assembly ........................................................................................................................................................................4
Actuator Assembly ..................................................................................................................................................................................................4
Disassembly..................................................................................................................................................................................................................4
Valve Actuation .......................................................................................................................................................................................................4
Disconnect Instrumentation ....................................................................................................................................................................................4
Air-to-Retract Actuators ..........................................................................................................................................................................................4
Threaded Connection .............................................................................................................................................................................................4
Split Clamp Connection ..........................................................................................................................................................................................4
Air-to-Extend Actuators ..........................................................................................................................................................................................4
Actuator Removal ...................................................................................................................................................................................................4
Valve Disassembly .......................................................................................................................................................................................................5
Plug Stem Disassembly .........................................................................................................................................................................................5
Auxiliary Pilot Plug Disassembly ............................................................................................................................................................................6
Maintenance and Repair ..............................................................................................................................................................................................6
Packing Box ...........................................................................................................................................................................................................6
PTFE Packing ........................................................................................................................................................................................................6
Valve with Graphite Packing ...................................................................................................................................................................................6
Repair of Parts ..............................................................................................................................................................................................................7
Guiding Surfaces ....................................................................................................................................................................................................7
Seating Surfaces ....................................................................................................................................................................................................7
Gaskets ..................................................................................................................................................................................................................8
Seal Rings ..............................................................................................................................................................................................................8
Metal Seal ..............................................................................................................................................................................................................8
Valve Plug ...............................................................................................................................................................................................................8
Conical Springs ......................................................................................................................................................................................................8
Valve Reassembly ........................................................................................................................................................................................................8
Pinning the Valve Plug ...........................................................................................................................................................................................8
Seal Ring Assembly ...............................................................................................................................................................................................8
Completing Valve Body Assembly ..........................................................................................................................................................................9
Valve Plug and Cage Assembly .............................................................................................................................................................................9
Valve Plug and Auxiliary Pilot Plug Assembly ........................................................................................................................................................9
Bonnet Assembly .........................................................................................................................................................................................................9
Tightening Body Nuts ...........................................................................................................................................................................................10
Packing Box Assembly .........................................................................................................................................................................................10
Bolt Torquing Sequence ............................................................................................................................................................................................10
Parts Reference For 72000 Series Control Valve ................................................................................................................................................12
Actuation .....................................................................................................................................................................................................................14
Parts Reference Table 51/52/53 Actuators ...............................................................................................................................................................23