Table of Contents
1. GENERAL ..............................................................................................1
1.1 Scope ................................................................................................................................1
1.2 Major Components of Control Valves .............................................................................1
1.3 Structures ..........................................................................................................................2
1.4 Nameplate .........................................................................................................................4
2. INSTALLATION .....................................................................................5
2.1 Maximum Lifting Loads of Eyebolts ...............................................................................5
2.2 Installing Valve in Process Pipe .......................................................................................5
2.3 Item to be Checked After Installation and Before Starting Operation .............................6
3. INSPECTION AND MAINTENANCE .....................................................8
4. DISASSEMBLY AND ASSEMBLY ........................................................9
4.1 Detaching Actuator from Valve Body .............................................................................9
4.2 Disassembly and Assembly of Valve Body .....................................................................9
4.3 Disassembly and Assembly of Actuator ........................................................................16
4.4 Disassembly and assembly of model PSA 1 ..................................................................18
4.5 Disassembly and Assembly of Model HA2, HA3, or HA4 Actuator ............................24
5. ADJUSTMENT AND CALIBRATION ..................................................30
6. DIRECT/REVERSE ACTION TYPE CONVERSION AND SPRING
RANGE CHANGE OF ACTUATOR .....................................................33
6.1 Direct/Reverse Action Change .......................................................................................33
6.2 Stroke And Range Spring Change .................................................................................35
7. INSTRUCTIONS FOR TOP HANDWHEEL OF ACTUATOR ..............37
7.1 Model PSA1 Actuator ....................................................................................................37
7.2 Model HA2, HA3, or HA4 Actuator ..............................................................................41
8. INSTRUCTIONS FOR SIDE HANDWHEEL OF ACTUATOR .............48
8.1 Installation Procedure .....................................................................................................48
8.2 Operating Instructions ....................................................................................................48
8.3 Disassembly of Side Assembly of Side Handwheel ......................................................49
9. Mechanical stopper ............................................................................51
9.1 Adjustment of MIN. stopper ..........................................................................................51
9.2 Adjustment of MAX. stopper .........................................................................................51
9.3 Adjustment of dual MIN. MAX. stopper .......................................................................52
10. TROUBLESHOOTING .......................................................................53
11. RECOMMENDED SPARE PARTS ....................................................55
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