Positive Displacement Pumps

The American Institute of Chemical Engineers (AIChE) is a distinguished professional association that strives to provide leadership in advancing the chemical engineering profession. The Equipment Testing Procedures Committee is composed of engineers with substantial experience in the design and operation of process plants, as well as in solving problems that can arise with the equipment used in these plants.

• 100.0 INTRODUCTION. 200.0 EXTENDED DEFINITIONS OF MAJOR TERMS, WITH EXPLANATIONS, CONVERSION FACTORS, AND NOMENCLATURE.200.1 Positive Displacement Pump.200.2 Fluid versus Liquid.200.3 Flow.200.4 Pressure.200.5 Net Positive Inlet Pressure (NPIP).200.6 Power.200.7 Efficiency.200.8 Torque.200.9 Viscosity.200.10 Specific Gravity.200.11 Revolutions per Minute (rpms).200.12 Extended Definitions.300.0 TYPES OF PUMPS COVERED IN THIS PROCEDURE.300.1 Gear Pumps.300.2 Lobe Pumps.300.3 Multiple Screw Pumps.300.4 Vane Pumps.300.5 Progressive Cavity Pumps.300.6 Diaphragm Pumps.300.7 Piston/Plunger Pumps.400.0 GENERAL NOTES ON TEST PREPARATION LOGISTICSINSTRUMENTS AND METHODS OF MEASUREMENT.400.1 Flow.400.2 Pressure.400.3 Power and Efficiency.400.4 Temperature.500.0 TESTING ROTARY PUMPS (GEAR, MULTIPLE SCREW, LOBE, AND . . . VANE PUMPS).501.0 Test Equipment.501.1 Shaft Speed.501.2 Suction and Discharge Pressures.501.3 Fluid Viscosity at Range of Temperatures.501.4 Flow Rate.501.5 Input Power.502.0 Standardized Tests.502.1 Performance Test.502.2 Minimum Required Suction Pressure Test.503.0 Other Tests.503.1 Sound Pressure Level.503.2 Vibrations and Temperature.504.0 Test Process Example.504.1 Performance Test.504.2 Observations.504.3 Minimum Required Suction Pressure Test.504.4 Observations.504.5 Other Tests.600.0 PROGRESSIVE CAVITY PUMP TESTING.601.0 Test Equipment.601.1 Shaft Speed.601.2 Pressure Instrumentation.601.3 Fluid Viscosity.601.4 Flow Measurement.601.5 Input Power.602.0 Tests.602.1 Performance Tests.602.2 NPSH Test.603.0 Other Tests.603.1 Sound Pressure Level.603.2 Vibration Measurements.603.3 Temperature Measurements.603.4 Miscellaneous.700.0 AIR-OPERATED DIAPHRAGM PUMPS.700.1 Recommended Installation.700.2 Access.700.3 Air Supply.700.4 Elevation.700.5 Flexible Connections.701.0 Test Equipment.701.1 Inlet Air Pressure.701.2 Fluid Discharge Pressure.701.3 Fluid Inlet Pressure.701.4 Process Fluid Temperature.701.5 Environment and Inlet Air Temperature.701.6 Viscosity.701.7 Specific Gravity.701.8 Ambient and Inlet Air Relative Humidity.701.9 Air Consumption.701.10 Flow.701.11 Sound.701.12 Blow-by.702.0 Tests.702.1 Performance Test.702.2 Life Test.703.0 Other Tests.703.1 Blow-by.703.2 Dry Vacuum.703.3 Wet Vacuum.703.4 Sound Test.704.0 Field Test Process Example.704.1 Performance Test.704.2 Observation.800.0 RECIPROCATING POSriWE DISPLACEMENT PUMP (RPDP) TESTING.800.1 Safety Precautions.800.2 Piping.800.3 Test Objective.801.0 Test Equipment.801.1 Shaft Speed.801.2 Suction Pressure.801.3 Discharge Pressure.801.4 Differential Pressure.801.5 Crankcase Temperature.801.6 Liquid Temperature.801.7 Vapor Pressure.801.8 Viscosity.801.9 Flow Rate.801.10 Input Power.802.0 Standardized Tests.802.1 Performance Test.802.2 Inlet Pressure Trace.803.0 Other Tests.803.1 Sound Pressure Level.803.2 Analysis of Results.804.0 Test Process Example.900.0 AUXILIARIES.900.1 Appendix A: Seals.900.2 Appendix B: Bearings and Rotor Dynamics.900.3 Appendix C: Piping.900.4 Appendix D: Installation.1000.0 REFERENCES AND BIBUOGRAPHY.