The eLearning Center for Gatlin Education Services

Covers piping and tubing systems used for fluid transport in the plant: hydraulic fluids, steam, liquefied product, refrigerant, and water. Shows typical metallic and nonmetallic piping systems, pipe-joining methods, and how tubing and hoses differ from piping. Covers valves, pipe fittings, hangers, supports, and insulation, and shows how tubing is sized, fitted, bent, and joined. Explains uses of traps, filters, and strainers.

Lesson 1 - Introduction to Piping Systems

Topics:

Nature of fluids; Keeping fluids clean and moving; Piping system maintenance, insulation, and layout; Valves, fittings, supports, and hangers

Learning Objectives:

• Describe what typical piping systems consist of, and explain their importance to plant operations.
• Identify common valves and fittings, pipe hangers and supports.
• Describe the effects of temperature on piping system components, and explain the need for insulation.
• List routine maintenance considerations for piping systems.

Lesson 2 - Metal Piping

Topics:

Pipe sizes, schedules, and codes; Process and utility lines; Metallurgy; Pipe manufacturing methods; Fluid behavior in pipes; Joining and maintaining pipe

Learning Objectives:

• Explain how metal pipes are sized and designated according to standard codes and schedules.
• Identify the characteristics of metals that make them suitable for a variety of piping applications.
• Describe the different methods of connecting sections of metal pipe, including bell-and-spigot joints, welded, soldered, or brazed joints, screwed or threaded joints, and flanged joints.
• Discuss the major considerations involved in the maintenance of metal piping.

Lesson 3 - Nonmetallic Piping

Topics:

Clay, concrete, reinforced concrete, asbestos-cement, plastic, and thermoplastic pipe; Joining, limitations, and maintenance, Glass piping

Learning Objectives:

• Name the basic nonmetallic piping materials, and discuss the advantages and disadvantages of each.
• Identify the different forms of clay pipe and concrete pipe.
• Explain the difference between thermoplastic and thermosetting plastic pipe.
• Discuss the limitations of plastic pipe.
• Describe how to join sections of nonmetallic pipe, and how to maintain them.

Lesson 4 - Tubing

Topics:

Sizing, applications, and advantages of tubing; Laminar flow; Tube cutting, joining, and bending; Tubing materials, manufacturing, and maintenance

Learning Objectives:

• Compare piping and tubing, and list the major advantages of tubing.
• Describe the methods of cutting, bending, and joining sections of tubing.
• List the main types of metal tubing, and describe the kinds of industrial applications in which they are used.
• List the main types of plastic tubing, and describe the kinds of industrial applications in which they are used.

Lesson 5 - Hoses

Topics:

Hose characteristics, codes, sizes, and terminology; Vacuum rating; Metallic and nonmetallic hose; Reinforcement materials and patterns; Couplings

Learning Objectives:

• Explain how hoses are sized, classified, and constructed.
• Define basic hose terminology.
• Discuss the respective advantages of metallic hose, nonmetallic hose, and reinforced nonmetallic hose.
• Describe the common types of hose couplings used in industrial service.
• List the primary maintenance requirements of hoses.

Lesson 6 - Fittings

Topics:

Elbows, return bends, tees, cross-fittings, reducers, caps, plugs, and couplings; Screwed, welded, and flanged connections; Expansion joints; Vibration dampeners; Schematic symbols

Learning Objectives:

• Discuss the main functions of fittings.
• Identify common pipe and tube fittings.
• Contrast screwed, flanged, and welded connections, and tell why one type of joint may be preferred for a given application.
• Explain how expansion joints and vibration dampeners work.
• Demonstrate a knowledge of the symbols used to represent joints and fittings on schematic drawings of piping systems.

Lesson 7 - Common Valves

Topics:

Valve function, terminology, construction, and sizes; Gate, globe, needle, ball, butterfly, plug, check, and quick-opening valves; Connections and maintenance

Learning Objectives:

• Explain the various ways in which valves control fluid flow in piping systems.
• Identify gate, globe, needle, ball, butterfly, plug, and check valves, and tell what each is used for.
• Explain how and why quick-opening valves are used in industrial piping applications.
• Describe routine inspection, lubrication, and maintenance procedures for common valves.

Lesson 8 - Special Valves

Topics:

Resistance to corrosion, pressure, and temperature; Diaphragm, pressure-, temperature-regulating, safety, relief, and reducing valves; Actuators

Learning Objectives:

• Explain how diaphragm valves work.
• Describe the functions of the three main types of blowoff valves.
• Tell how regulating valves, relief valves, and reducing valves are used in industrial piping systems.
• Describe how different kinds of actuators open and close valves in response to pneumatic, hydraulic, or electrical signals.

Lesson 9 - Strainers, Filters, and Traps

Topics:

System protection; Wire screens and strainers; Magnetic traps; Cartridge and edge filters; Steam traps; Vent valves; Inspection and maintenance

Learning Objectives:

• Discuss the protective uses of strainers and filters in piping systems.
• Explain how the relationship between pressure and temperature affects steam lines, and creates the need for steam traps.
• Describe proper steam trap maintenance.
• Explain how and why air-vent and water-drain valves are used.
• Describe how a heat exchanger works in a fluid system.

Lesson 10 - Accessories

Topics:

Gauges; Pressure joints; Vacuum breakers; Accumulators; Receivers; Actuators; Heat exchangers; Intensifiers; Aftercoolers

Learning Objectives:

• Describe how different types of gauges are used to measure pressure and temperature in piping systems.
• Explain why rotary pressure joints are necessary in some applications.
• Describe the functions of accumulators and receivers.
• Tell how actuators and intensifiers are used in fluid-power systems.
• Discuss the principles of preventive maintenance and repair maintenance as they apply to piping systems.