Maricopa Community Colleges  SUN139   19972-20046 
Official Course Description: MCCCD Approval: 10/22/96
SUN139 19972-20046 LEC 1 Credit(s) 1 Period(s)
Identifying and Installing Valves
Identification and installation of specific types of piping valves. Includes procedures for storage and handling. Prerequisites: (Indentured status with the Arizona Builders Alliance and ABC152) or permission of the apprenticeship coordinator.
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MCCCD Official Course Competencies:
 
SUN139   19972-20046 Identifying and Installing Valves
1. List and explain trade terms associated with piping valves. (I)
2. Identify and describe the types of valves that start and stop flow. (II)
3. Identify and describe the types of valves that regulate flow. (III)
4. Identify and describe the types of valves that relieve pressure. (IV)
5. Identify and describe the types of valves that regulate the direction of flow. (V)
6. Identify and describe specific types of valve actuators. (VI)
7. Explain procedures for properly storing and handling valves. (VII)
8. Demonstrate the installation of specific types of valves in piping systems. (VIII)
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MCCCD Official Course Outline:
 
SUN139   19972-20046 Identifying and Installing Valves
    I. Trade Terms
        A. Body
        B. Bonnet
        C. Disc
        D. Port
        E. Full port
        F. Seat
        G. Stem
        H. Throttling
        I. Trim
      II. Valves That Start/Stop Flow
          A. Gate
            1. Body
            2. Bonnet
            3. Gate
            4. Stem
          B. Knife gate
          C. Ball
          D. Plug
            1. Lubricated
            2. Nonlubricated
          E. Three-way
        III. Valves That Regulate Flow
            A. Globe
              1. Body
              2. Bonnet
              3. Disc
              4. Stem
            B. Angle
            C. Y-type
            D. Needle
            E. Butterfly
              1. Wafer
              2. Water lug
              3. Two-flange
            F. Diaphragm
            G. Control
          IV. Valves That Relieve Pressure
              A. Safety
              B. Pressure-relief
            V. Valves That Regulate Direction of Flow
                A. Swing check
                B. Lift check
                C. Ball check
                D. Butterfly check
                E. Foot valves
              VI. Valve Actuators
                  A. Gear operators
                    1. Spur-gear
                    2. Bevel-gear
                    3. Worm-gear
                  B. Chain operators
                  C. Pneumatic and hydraulic
                  D. Electric or air motor-driven
                VII. Storing and Handling Valves
                    A. Safety considerations
                    B. Storing
                    C. Rigging
                  VIII. Installing Valves
                      A. Location
                        1. Accessibility
                        2. Height
                        3. Direction of flow
                      B. Threaded
                        1. Hand-tight engagement
                        2. Wrench makeup
                        3. Thread makeup
                      C. Welded
                        1. Socket weld
                        2. Butt weld
                      D. Flanged
                        1. Face style
                        2. Gasket
                        3. Bolt tightening
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