Emergency Vehicle Ops: Pump Operations and Hydraulic Calculations

Course: Pumps Refresher Course Session Reference: 2 Topic: Pump Operations and Hydraulic Calculations Time Required: 3 hours Materials: Chalkboard Reference: Pump Operator Student Manual, Maryland Fire and Rescue Institute...


      e. Water sources

          1 ) Tanks

          2 ) Pressurized sources

          3 ) Static sources

C. Type of operation

  1. Handlines

      a. Single lines

      b. Multiple lines of same size

      c. Multiple lines of different sizes

  2. Master streams

      a. Ground

          1 ) number of lines

          2) flow requirements

       b. Elevated

          1) number of lines

          2) flow requirements

          3) proximity of pumper to aerial device

  3. Built-in fire protection systems – 150 PSI to connection

II. Hydraulic Problems (I have diagrams of each problem)

A. Problem #1

700' of 5" hose from supply pumper to attack pumper; 150' of dual 3" lines from attack pumper to siamese; 100' of 3" hose from siamese to ladder pipe assembly; aerial ladder 48' up with 1-3/8" tip

NEEDED: EP for supply pumper and attack pumper

B. Problem #2

1200' of dual 3" lines from supply pumper to relay pumper which is 36' above supply pumper; 800' of 4" hose from relay pumper to attack pumper which is 24' below relay pumper; 100' of 3" hose from attack pumper to thief; two 100' 1-1/2" lines with fog nozzles flowing 100 GPM each off thief; one 300' 2-1/2" line with fog nozzle flowing 200 GPM off thief

NEEDED: EP for supply pumper, relay pumper, and attack pumper

C. Problem #3

700' of 4" hose from supply pumper to attack pumper; two 150' 1-3/4" lines with fog nozzles flowing 100 GPM each

NEEDED: EP for supply pumper and attack pumper

D. Problem #4

800' of dual 3" lines from supply pumper to attack pumper; 250' dual 3" lines from attack pumper to deck gun with 1-3/8" tip

NEEDED: EP for supply pumper and attack pumper

Review:

Pump Operations and Hydraulic Calculations

   * Pumping Operations

   * Hydraulic Problems