Motor Operated Valves Training

419-01 MOV (Motor Operated Valve) Application and Construction

When you complete this lesson, you will be able to describe typical components, uses, and operations of motor operated valve actuators.

  • List the advantages of using an MOV
  • Describe the operation of a typical MOV
  • Discuss typical scenarios in which MOV use would be beneficial
  • Describe the components of actuators and explain the differences between the Limitorque® 00/000 and 0-3

419-02 MOV (Motor Operated Valve) Disassembly and Inspection, Part 1

When you complete this lesson, you will be able to explain how to disassemble, inspect, and reassemble a Limitorque® SMB-00/000 MOV actuator.

  • List the tools and equipment required for MOV inspection and disassembly
  • Describe the things and conditions you look for during inspection
  • Describe techniques that help prevent component damage during disassembly and reassembly
  • Walk through the steps to disassemble a Limitorque® SMB-000/00 MOV, inspect its components, and reassemble it

419-03 MOV (Motor Operated Valve) Disassembly and Inspection, Part 2

When you complete this lesson, you will be able to describe the reassembly techniques applied to the SMB-00/000 Limitorque® MOV.

  • List the tools and equipment required for MOV reassembly
  • Provide a detailed description of the reassembly steps employed with each of the following SMB-00/000 components:
    • Declutch shaft and fork
    • Drive sleeve
    • Worm shaft
    • Worm and spring pack
    • Spring cartridge cap
    • Declutch lever
    • Handwheel assembly
    • Tripper lever
    • Torque switch
    • Limit switch

419-04 Limit Switch Adjustment

When you complete this lesson, you will be able to explain the process of adjusting the limit switch for a Limitorque® actuator.

  • Walk through the basic, step-by-step process of adjusting a Limitorque® actuator limit switch
  • Explain how to determine whether or not the switch needs adjustment
  • Discuss why it is important to note the direction of rotation of the intermittent gear shafts while the valve is being repositioned