Emerson TESCOM - Page 3

3
Installation Manual
Content
December 2020
Installation Manual
TR000238ENUS-01_12-20
Contents
Chapter 1
Chapter 2
Chapter 3
Chapter 4
1. Symbols.....................................................................................................................4
1.1 Symbols.............................................................................................................................4
2. Safety and Installation Precautions............................................................................4
2.1 Regulators and Valves........................................................................................................4
2.1.1 Intended Use............................................................................................................6
2.1.2 Installation................................................................................................................6
2.1.3 Repair Service............................................................................................................7
3. Operations and service................................................................................................8
3.1 Pressure Reducing Regulators - Diaphragm - Sensed..........................................................8
3.1.1 General.....................................................................................................................8
3.1.2 Pressure Activation Methods.....................................................................................8
3.1.3 Operation (Control Knob Adjustment)......................................................................9
3.1.4 Maintenance.............................................................................................................9
3.1.5 Reassembly.............................................................................................................10
3.2 Pressure Reducing Regulators - Piston-Sensed.................................................................11
3.2.1 General...................................................................................................................11
3.2.2 Pressure Activation Methods...................................................................................11
3.2.3 Operation (Control Knob Adjustment)....................................................................12
3.2.4 Maintenance...........................................................................................................12
3.2.5 Reassembly.............................................................................................................13
3.3 Back Pressure Regulators - Diaphragm-Sensed.................................................................14
3.3.1 General...................................................................................................................14
3.3.2 Pressure Activation Methods...................................................................................14
3.3.3 Operation (Control Knob Adjustment)....................................................................15
3.3.4 Maintenance...........................................................................................................15
3.3.5 Reassembly.............................................................................................................16
3.4 Back Pressure Regulators - Piston-Sensed.........................................................................16
3.4.1 General...................................................................................................................16
3.4.2 Pressure Activation Methods...................................................................................17
3.4.3 Operation (Control Knob Adjustment)....................................................................17
3.4.4 Maintenance...........................................................................................................17
3.4.5 Reassembly.............................................................................................................18
3.5 Valves - TESCOM Multi-Turn and Metering Valves.............................................................19
3.5.1 General...................................................................................................................19
3.5.2 Actuation Types......................................................................................................19
3.5.3 Operation (Control Knob Adjustment)....................................................................19
3.5.4 Maintenance...........................................................................................................19
3.5.5 Reassembly.............................................................................................................20
3.6 Valves - TESCOM On-Off and Diverting Valves..................................................................21
3.6.1 General...................................................................................................................21
3.6.2 Actuation Types......................................................................................................21
3.6.3 Operation (Control Knob Adjustment)....................................................................21
3.6.4 Maintenance...........................................................................................................21
3.6.5 Reassembly.............................................................................................................22
4. Limited Warranty.....................................................................................................23