4 | Baker Hughes
Copyright 2021 Baker Hughes Company. All rights reserved.
Scope
This manual includes instructions for the installation, operation and maintenance of the Mooney Series 20 Relief Valve. For questions
concerning any details of this manual, please contact the manufacturer’s representative or the factory.
Table of Contents
Product Introduction .................................................................................................................5
Specifications ............................................................................................................................5
Nameplate Information ..............................................................................................................6
Principle of Operation ...............................................................................................................7
Installation..... .............................................................................................................................8
Remote Sensing ........................................................................................................................8
Startup and Operation ...............................................................................................................9
General Planning for Maintenance ..........................................................................................9
Disassembly of the Mooney Series 20 Relief Valve ...............................................................10
Cleaning .................................................................................................................................11
Inspection of the Main Valve ....................................................................................................11
Reassembly................................................................................................................................11
Reassembly of Pilot to Main Valve .........................................................................................13
Mooney Series 20 Pilot .............................................................................................................13
Product Description ................................................................................................................13
General Description ...............................................................................................................13
Pilot Markings (Figure 12) ......................................................................................................15
Maintenance ...............................................................................................................................15
Pilot Disassembly ......................................................................................................................16
Pilot Assembly ...........................................................................................................................16
Hydrostatic Testing ...................................................................................................................18
Accessories ...............................................................................................................................18
