Official Course Description:  MCCCD Approval: 6-23-2009
MEC232  2009 Fall – 2010 Fall	LEC  5.0 Credit(s)  5.0 Period(s)  5.0 Load  Occ
Advanced Construction Pipe Trades III
Advanced pipe fabrication and layout. Calculations of offsets. Tank coils, ordinate lines, cutback lines. Tables, formulas, and resource materials. Mitered turns, lateral dimensions. True Wye, Dummy Legs and Trunions. Work planning, material needs, and inspections. Prerequisites: Registered apprentice status or permission of the Apprenticeship Coordinator.

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MCCCD Official Course Competencies:
MEC232  2009 Fall – 2010 Fall	Advanced Construction Pipe Trades III

 

1.         Discuss advanced pipe fabrication including layout and fabrication of specific piping systems. (I)

2.         Calculate piping offsets, simple offsets, and three-line, 45 degree, equal and unequal spread offsets using triangular or prescribed methods and procedures. (II)

3.         Layout tank coils, ordinate lines, and cutback lines using tables, formulas, and resource materials. (III)

4.         Fabricate mitered turns determining number of segments, finding center-to center length, finding length of end pieces, three piece, four piece, and five piece mitered turns. (IV)

5.         Demonstrate lateral dimensions using step by step procedures for the Reference Method and the Contour Marker Methods. (V)

6.         Discuss fabricating of “True Wye” fittings considering factors of layout and measure; cut material; clean and bevel; and fit up, check and weld. (VI)

7.         Explain the function and layout of “Dummy Legs” and “Trunions.” (VII)

8.         Discuss work planning including daily work activities for the pipefitters, coordinating with other crafts, establishing safe working conditions, and field checking. (VIII)

9.         Determine material needs including take-offs, equipment and materials, pipefitting task preparation, and sequencing operations of a specific task. (IX)

10.       Discuss Non-Destructive Examination (NDE) of materials including terms, visual inspections, prefit-up inspections, visual inspections for fit-ups, root passes, and inspecting completed welds. (X)

 

 

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MCCCD Official Course Outline:
MEC232  2009 Fall – 2010 Fall	Advanced Construction Pipe Trades III

 

I.          Advanced Pipe Fabrication

            A.        Layout

            B.        Fabrication

II.        Calculate

            A.        Piping Offsets

            B.        Simple Offsets

            C.        Three-line Offsets

            D.        Forty-five Degree Offsets

            E.         Spread Offsets

III.       Layout

            A.        Tank Coils

            B.        Ordinate Lines

            C.        Cutback Lines

IV.       Fabricated Mitered Turns

            A.        Number of Segments

            B.        Center-to-center Length

            C.        Length of End Pieces

            D.        Three Piece

            E.         Four Piece

            F.         Five Piece

V.        Lateral Dimensions

            A.        Reference Method

            B.        Contour Marker Method

VI.       “True Wye” Fittings

            A.        Layout and Measure

            B.        Cut Material

            C.        Clean and Bevel

            D.        Fit up, and Check and Weld

VII.     “Dummy Legs” and “Trunions”

            A.        Function

            B.        Layout

VIII.    Work Planning

            A.        Daily Work Activities for the Pipefitters

            B.        Coordinating with Other Crafts

            C.        Establishing Safe Working Conditions

            D.        Field Checking

IX.       Material Needs

            A.        Take-offs

            B.        Equipment and Materials

            C.        Pipefitting Task Preparation

            D.        Sequencing Operations of a Specific Task

X.        Non-Destructive Examination (NDE) of Materials

            A.        Terms

            B.        Visual Inspections

            C.        Prefit-up Inspections

            D.        Visual Inspections for Fit-ups

            E.         Root Passes

            F.         Inspecting Completed Welds