Mechanical Equipment Operating Fundamentals

DOE-HDBK-1115-98

irradiation

chemical impurities in the environment

pressure

temperature and temperature gradient

welding.

Describe the conditions that contribute to pressurized thermal shock, and state the

facility materials and equipment susceptible to it.

Evaluate facility operations conditions to determine the margin to pressurized thermal

shock limits.

4.3.8 Mechanical Equipment Operating Fundamentals

Training should provide trainees with the requisite knowledge and skills to perform the

following:

Identify the major components of the most common facility valves.

Identify the basic valve types from symbols used in mechanical drawings.

Describe the principle of operation of valve types such as

relief

gate

globe

ball

needle

pressure and back-pressure regulating

butterfly

check.

Describe the principle of operation of valve operators types such as

motor operators

solenoid operators

hand operators

hydraulic operators.

Describe how to check the position of remotely operated and manually operated valves.

Describe the principles of operation of equipment such as

heat exchangers

diesel generators.

Describe the operating precautions associated with station diesel generators and

operating practices that could lead to degraded diesel generator performance.

Describe the principle of operation of pumps such as

reciprocating positive displacement

rotary positive displacement

jet

centrifugal