TM 10-4320-303-132.1.2 TWDS10-MileHoselineSegment.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-MileHoseline Segment.ItemNo.Item NameDescription and Purpose1ISOLATION COCK VALVEUsed to manually turn pressure reducing valve assembly on andoff. Three are present on the pressure reducing valveassembly.2TOP ISOLATION COCKVALVEApplies pressure to diaphragm.3OUTLET PRESSUREVALVEReleases water from pressure regulator into pressure reducingvalve.4INLET PRESSURE VALVESupplies water from 10-mile hoseline segment to pressureregulator.5PRESSURE RELIEFVALVEReleases pressure in 10-mile hoseline segment when pressureexceeds 200 pounds per square inch (psi).2-3
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