Pipefitting and Welding Techniques Review

These flashcards help review vocabulary and key concepts from the lecture notes on pipefitting and welding techniques.

Considerations for Pipe Valve Selection

Before selecting a valve for a pipeline, consider flow rate and type of fluid.

Non-return valve

A valve that prevents back flow.

Types of Equipment for Pipe Bending

Common tools used include pipe benders, hydraulic machines, and bending jigs.

Advantages of TAGS/TIG Welding

Advantages include cleaner welds and precision.

Disadvantages of TAGS/TIG Welding

Disadvantages include being more expensive and requiring more skill.

Tungsten Electrodes for TIG Welding Stainless Steel

Red-tipped tungsten electrodes are used for TIG welding stainless steel.

Functions of Shielding Gas in MAGS Welding

The shielding gas protects the weld from contamination, controls heat, and stabilizes the arc.

Destructive Testing

A method that tests material properties to failure.

Non-Destructive Testing

Methods that assess material properties without causing damage.

Orbital Welding Head vs. Welding Power Source

The welding head delivers the welding arc, while the power source supplies electricity.

Advantages of Orbital Welding

Benefits include consistent weld quality and automation.

Minimum Standards for Orbital Welds

Standards ensure integrity, strength, appearance, and compliance with specifications.

Layers in CAD Drawing

Layers organize elements, allow visibility control, and ease editing in CAD.

Advantages of CAD in Pipefitting

Advantages include precision and ease of modification.

Disadvantages of CAD in Pipefitting

Disadvantages may include software costs and a learning curve for users.

Heat vs. Temperature

Heat is the energy transferred, while temperature measures the thermal state.

Types of Heat Transfer

Conduction, convection, and radiation are the three types of heat transfer.

Thermal Expansion Considerations in Pipework

Thermal expansion affects pipe fitting and requires allowances and proper spacing.

Bracket Spacing on Pipe Racks

Spacings depend on pipe sizes and support requirements.

Metal Arc Gas Shielded (MIG) Welding Process

MIG welding uses a continuous wire feed to create a weld with a shielding gas.

Parts of MAGS Welding Plant

Components include the regulator, gas cylinders, power source, and MIG torch.

Volume Calculation of Pipe

Calculate the inner volume of the pipe considering its dimensions.

Pythagoras Theorem

States that in a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides.

Pythagorean Calculation

For sides of 7m and 4m, the hypotenuse calculates to 8.06m.