Isman discusses the mathematical aspects of pump operation, procedures, and hydraulics. Contents: Basic mathematical operations Frcations Algebra Ratio, proportion, percentage, powers and roots The metric system and fire service hydraulics Fireground hydraulics Introduction to pump operations Positive displacement pumps Centrifual pumps Pump drives Pump, cab, and body componenets Noxxle reaction Pressure control systems Priming devices Drafting operations Hydrant supply and operations Relay operations Sprinkler andstandpipe operations Tanker and portable pump operations Testing and maintenance Driver training Appendices: Understanding fluids Water movement Quantity of water flowing Equations Definitions.allows the water to either return to the pump intake or dump on the ground through the overflow pipe. ... from a pressure source, the governor will not operate consistently since the change in pressure in the intake will change the flow resistance from the return line. ... The control valve now is closed slowly until the pressure on the discharge gage begins to drop. ... Schematic diagram of the American governor. ... Then, pull out the actuator all the way to engage the O-ring seal Figure 28.
|Title||:||Fire Service Pump Operator's Handbook|
|Author||:||Warren E. Isman|
|Publisher||:||PennWell Books - 1984-01|