Section V. OPERATION OF MATERIAL USED IN CONJUNCTION WITH CENTRIFUGAL PUMP ASSEMBLY

Figure 2-9. Performance curve.

Section V. OPERATION OF MATERIAL USED IN CONJUNCTION

WITH CENTRIFUGAL PUMP ASSEMBLY

powder at base of flame, using a side-to-side sweeping

2-20. Fire Extinguisher (Dry Chemical Type)

motion.

Description.

The dry chemical type fire

c. Maintenance. Weigh the fire extinguisher every

extinguisher (fig. 2-3) is suitable for use on all types of

6 months and replace if weight is less than 4 1/2

fire, and is effective in areas where ambient

pounds, or if pressure is below 125 pounds. The dry

temperature is -25 F. And above. If winterized

chemical fire extinguishers will be serviced at

(pressurized with nitrogen), the fire extinguisher may be

installation level through Repair and Utilities facilities

used in temperatures below -25 F.

The fire

with the filling agent supplied by local procurement

extinguisher is a 2 1/2 pound, stored-pressure, lever

through Troop Supply Channels. Refer to TB 5-4200-

operated extinguisher.

200-10.

b. Operation. Remove the fire extinguisher from its

location, lift the handle, press lever, and direct the

2-14