Maricopa Community Colleges  HFA250   19996-20012 
Official Course Description:   MCCCD Approval:  06/22/99
HFA250      19996-20012 LEC 5 Credit(s) 5 Period(s)
Shop Fabrication: Layout and Pattern-making for Insulators II
Shop fabrication for the heat, frost and asbestos trades related to insulation. Advanced layout patterns for long and short radius elbows, cones, bevels, and tank heads. Specifications for selecting fittings and structures. Numbers and sizes of miters and gores. Prerequisites: HFA150.
 
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MCCCD Official Course Competencies:
 
HFA250   19996-20012 Shop Fabrication: Layout and Pattern-making for Insulators II
1. Layout patterns for a 90' long radius elbow. (I)
2. Layout patterns for a 90' short radius elbow. (II)
3. Layout patterns for cones. (III)
4. Layout patterns for bevels. (IV)
5. Layout patterns for tank heads. (V)
6. Layout patterns for flanges. (VI)
7. Layout patterns for endcaps. (VII)
8. Layout patterns for a lateral Y. (VIII)
9. Identify specifications for selecting fittings and structures. (IX)
10. Identify procedures for determining the numbers and sizes of miters and gores. (X)
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MCCCD Official Course Outline:
 
HFA250   19996-20012 Shop Fabrication: Layout and Pattern-making for Insulators II
    I. Long Radius Elbow
        A. Miters
        B. Gores
        C. Stretchout for gores
      II. Short Radius Elbow
          A. Miters
          B. Gores
          C. Stretchout for gores and butterfly throat
        III. Cones
            A. Round equal taper
            B. Concentric reducer
            C. Cone
          IV. Bevels
              A. 45' bevel
              B. Eccentric reducing bevel
            V. Tank Head
                A. Gores for a tank head
                B. Starter pieces and centercap for a tank head
              VI. Flange
                  A. Layout material
                  B. Find required dimensions
                  C. Draw lap lines and baseline
                  D. Draw circles
                  E. Covering over outside of flange
                VII. Endcap
                    A. Layout material
                    B. Outside diameter of pipe
                    C. Draw baseline and center point
                    D. Draw half circles on baseline
                    E. Extend half circles to the bottom edge
                  VIII. Lateral Y
                      A. Layout a pattern
                      B. Stretchout for a lateral Y body (hole cut)
                      C. Stretchout for a lateral Y stem (bonnet)
                    IX. Specifications
                        A. Fittings
                        B. Structures
                      X. Numbers and Sizes
                          A. Miters
                          B. Gores
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