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Baker Hughes
© 2020 Baker Hughes Company. All rights reserved.
Table of Contents
Section
Subject
Page No
I.
Product Safety Sign and Label System ................................................................................................6
II.
Safety Alerts .........................................................................................................................................7
III.
Safety Notice ........................................................................................................................................8
IV.
Warranty Information ............................................................................................................................9
V.
Terminology for Safety Valves ....................................................................................................... 9-10
VI.
Handling and Storage ........................................................................................................................11
VII.
Pre-Installation and Installation Instructions .......................................................................................12
VIII. Introduction .........................................................................................................................................12
IX.
Consolidated 1900/P Series Safety Valves
.....................................................................................13
A. Conventional Valve .......................................................................................................................13
B. Standard Cap Types .....................................................................................................................13
C. Bellows Valve (P1 only) .................................................................................................................14
X.
General Planning for Maintenance .....................................................................................................16
XI.
Recommended Installation Practices ................................................................................................16
XII.
Disassembly of 1900/P Series Safety Valves ....................................................................................17
XIII.
Maintenance Instructions
................................................................................................................18
A. Machining of Seat Nozzle .............................................................................................................18
B. Lapping .........................................................................................................................................19
C. Reconditioning of Ring Laps ........................................................................................................19
D. General Lapping Comments ........................................................................................................19
E. Nozzle Lapping ............................................................................................................................19
F. Thermodisc™ Disc Lapping ..........................................................................................................20
XIV.
Inspection and Part Replacement ............................................................................................... 20-22
XV.
Reassembly 1900/P Series Safety Valves
......................................................................................23
A. Reassembly of the Valve ......................................................................................................... 23-24
B. Checking Lift on D and E Valves ............................................................................................. 25-26
C. Limit Washer Length .....................................................................................................................26
XVI.
Setting and Testing
..........................................................................................................................27
A. Setting the Valve ...........................................................................................................................27
B. Back Pressure Compensation ......................................................................................................27
C. Blowdown ......................................................................................................................................27
D. Seat Leakage ................................................................................................................................28
E. Recommended Back Pressure Testing .........................................................................................28
F. System Hydrostatic Testing ...........................................................................................................28
G. Adjusting Ring Settings .................................................................................................................29
XVII.
Troubleshooting Guide for Safety Valve .............................................................................................30
