Maricopa Community Colleges  MEC152   20032-20086 
Official Course Description: MCCCD Approval: 11/26/02
MEC152 20032-20086 L+L 1 Credit(s) 2 Period(s)
Threaded Pipe Fabrication
Fabrication of threaded pipe including, identification and proper use of specific types of pipe, identification and use of pipe fittings. Use and interpretation of drawings, identification and application of specific threads, installation procedures for threaded pipe and installation of threaded pipe.
Prerequisites: Registered Apprentice status or permission of the apprenticeship coordinator.
Cross-References: ABC152
Go to Competencies    Go to Outline
 
MCCCD Official Course Competencies:
 
MEC152   20032-20086 Threaded Pipe Fabrication
1. Define specific terms related to the pipe fabrication trade. (I)
2. Identify specific materials used in threaded pipe systems and explain proper application of them in given situations. (I, II)
3. Identify specific pipe fittings and their use. (III)
4. Read and interpret screwed fitting joint drawings. (IV)
5. Identify specific pipe threads and describe advantages and disadvantages of each. (V)
6. Calculate specific pipe lengths between fittings. (VI)
7. Calculate pipe offsets for specific situations. (VI)
8. Thread specific types of pipe, prepare for joining and join pipe using safe procedures, tools and materials. (VII)
Go to Description    Go to top of Competencies
 
MCCCD Official Course Outline:
 
MEC152   20032-20086 Threaded Pipe Fabrication
    I. Threaded pipe fabrication
        A. Trade terms and application
          1. Branch
          2. Branch ell
          3. Bushing
          4. Concentric coupling
          5. Eccentric coupling
          6. Elbow
          7. Flange
          8. Liquid tape
          9. NPT(National Pipe Thread)
          10. Takeout
          11. Tee
          12. Union
          13. Wye
          14. Other
        B. Advantages of threaded pipe
      II. Materials used in threaded piping systems
          A. Pipe sizes
            1. Inside diameter
            2. Outside diameter
          B. Schedules and wall thicknesses
            1. Standard wall (STD)
            2. Extra-strong wall (XS)
            3. Double extra-strong wall (XXS)
            4. Commercial pipe dimensions ABC152Effective Term:
        III. Pipe fittings
            A. Elbows, offsets and return bends
            B. Branch connections
            C. Caps and plugs
            D. Line connections
              1. Couplings
              2. Unions
              3. Bushings
              4. Reducers
            E. Nipples
            F. Flanges
          IV. Screwed fitting joint drawings
              A. Double line
              B. Single line
              C. Isometric
              D. Piping symbols
              E. Line numbers
              F. Specifications book
            V. Threads
                A. Types
                B. Taper thread connections
              VI. Determining pipe lengths and offsets
                  A. Center to center method
                  B. Face-to-face method
                  C. Calculating offsets
                    1. Simple offsets
                    2. 45-degree offsets
                    3. Offsets with known set and elbow angles
                    4. Offsets using multipliers
                    5. Travel of rolling offsets
                VII. Safe assembly techniques
                    A. Threading pipe
                      1. Manual procedures
                      2. Threading machine
                    B. Pipe joint compounds
                      1. Teflon tape
                      2. Liquid Teflon
                      3. Pipe dope
                    C. Selecting wrenches
                    D. Fitting screwed pipe and fittings
                Go to Description    Go to top of Competencies    Go to top of Outline