Baker Hughes Masoneilan 77000 Series, Instruction Manual

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Valve Reassembly .....................................................................................................6
Body Bolting .................................................................................................................................. 7
Packing Box Assembly ...........................................................................................................................................8
Low-E Packing (Optional) .............................................................................................................. 8
Preparation.................................................................................................................9
Stem .......................................................................................................................................... 9
Packing Box .................................................................................................................................. 9
Packing .......................................................................................................................................... 9
Spring Loaded Follower ................................................................................................................ 9
Packing Installation ....................................................................................................................... 9
Valve Travel Requirements .....................................................................................10
Parts Reference Table ................................................................................................................. 10
77003 Series Disassembly ......................................................................................13
Valve Disassembly ...................................................................................................................... 13
Actuator and Linkage Disassembly ............................................................................................ 13
Bonnet/Trim Disassembly ............................................................................................................ 13
77003 Series Maintenance & Repair ......................................................................13
Parts Repair ................................................................................................................................ 13
Guiding Surfaces ......................................................................................................................... 13
Seating Surfaces ......................................................................................................................... 13
77003 Series Reassembly .......................................................................................14
Valve Body Assembly .................................................................................................................. 14
Trim / Bonnet / Body Assembly ................................................................................................... 14
77003 Series 5-Stage Partially Balanced (Trim X) ...................................................................... 14
77003 Series 3-Stage Unbalanced (Trim Y) ............................................................................... 14
Body / Bonnet / Body Gasket / Bolting Assembly ........................................................................ 14
Packing Box / Standard Packing Assembly ................................................................................. 16
Offset Actuator Mounting Linkage ............................................................................................... 17
Seat Lapping ............................................................................................................................... 17
Linkage Assembly ...................................................................................................18