Baker Hughes Masoneilan 21000 Series - Table of Contents

Masoneilan 21000 Series Top Guided Globe Valve Instruction Manual | iii
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Table Of Contents
Important: Safety Warning ............................................................................................................. 1
1. Introduction ................................................................................................................................. 3
2. General ........................................................................................................................................ 3
3. Unpacking ................................................................................................................................... 3
4. Installation................................................................................................................................... 3
5. Air Piping ..................................................................................................................................... 4
6. Body Disassembly...................................................................................................................... 4
6.1 Threaded Trim ....................................................................................................................... 4
6.2 Quick-Change Trim ............................................................................................................... 4
7. Maintenance/Repair.................................................................................................................... 5
7.1 Threaded Seat Ring Removal ............................................................................................... 5
7.2 Bushing Removal .................................................................................................................. 5
7.3 Lapping Seats ....................................................................................................................... 5
7.3.1 Threaded Trim .............................................................................................................. 5
7.3.2 Quick-Change Trim ....................................................................................................... 6
7.4 Lo-Db Plug ............................................................................................................................ 6
7.5 Plug Stem Pinning................................................................................................................. 6
7.6 Packing Box .......................................................................................................................... 7
7.6.1 Kevlar/Ptfe Pack. Ring (Standard) ................................................................................ 7
7.6.2 Expanded Graphite P. Ring (Option) ............................................................................ 8
7.6.3 Le Packing (Low Emission) (Option) ............................................................................ 8
7.7 Soft Seat Plug ....................................................................................................................... 9
8. Valve Body Reassembly ............................................................................................................ 9
8.1 Threaded Trim ....................................................................................................................... 9
8.2 Quick-Change Trim ............................................................................................................. 10
8.3 High Pressure & Angle Design ............................................................................................ 11
9. Actuators ................................................................................................................................... 11
9.1 Types 87/88 Actuators ......................................................................................................... 11