TM 10-4320-303-13
2.1.2 TWDS 10-Mile Hoseline Segment. See figure 2-2 and table 2-2.
Figure 2-2. Operator's Controls and Indicators for TWDS 10-Mile Hoseline Segment.
Table 2-2. Description of Operator's Controls and Indicators for TWDS 10-Mile
Hoseline Segment.
Item
No.
Item Name
Description and Purpose
1
ISOLATION COCK VALVE
Used to manually turn pressure reducing valve assembly on and
off. Three are present on the pressure reducing valve
assembly.
2
TOP ISOLATION COCK
VALVE
Applies pressure to diaphragm.
3
OUTLET
PRESSURE
VALVE
Releases water from pressure regulator into pressure reducing
valve.
4
INLET PRESSURE VALVE
Supplies water from 10-mile hoseline segment to pressure
regulator.
5
PRESSURE
RELIEF
VALVE
Releases pressure in 10-mile hoseline segment when pressure
exceeds 200 pounds per square inch (psi).
2-3
