Positive Displacement Pumps Training

231-01 Introduction to Positive Displacement Pumps

When you complete this lesson, you will be able to describe the basic design and operation of positive displacement pumps and identify operating conditions under which they are commonly implemented. Additionally, you will be able to discuss the operational differences between the two main classes of positive displacement pumps, which are reciprocating and rotary.

  • Discuss the operating principle behind positive displacement pumps
  • State three operating conditions under which a positive displacement pump would best be employed
  • Identify the basic components of a positive displacement pump
  • Discuss the difference between the basic operations of reciprocating and rotary positive displacement pump categories

231-02 Reciprocating Positive Displacement Pumps

When you complete this lesson, you will be able to describe the design and function of reciprocating positive displacement pumps commonly used in industry.

  • Describe the operating characteristics of piston and plunger reciprocating pumps
  • Identify the difference between single-acting and double-acting reciprocating positive displacement pumps
  • Discuss the operation of each of the following types of reciprocating pump configurations:
    • Simplex
    • Duplex
    • Multiplex
  • Describe the basic operating characteristics of a reciprocating diaphragm pump

231-03 Displacement Pumps

When you complete this lesson, you will be able to describe the design and operation of rotary positive displacement pumps commonly used in industry.

  • Describe the operating characteristics of rotary positive displacement pumps
  • Identify the primary difference between an internal rotary gear pump and external rotary gear pump
  • Describe the design and operation of each of the following types of rotary pumps:
    • Screw pumps
    • Vane pumps
    • Lobe pumps
  • Explain the purpose of a metering pump