MIL-HDBK-1005/7A
b)
Type of water.
c)
Availability.
d)
Ease of installation and maintenance.
e)
Economic considerations.
7.6.1.2
Structural Requirements. Refer to AWWA Standard C800,
Underground Service Line Valves and Fittings, on structural
requirements.
7.6.2
Appurtenances. Refer to AWWA Standard C800,
Underground Service Line Valves and Fittings for requirements
concerning appurtenances.
7.6.2.1
Corporation Stops or Cocks. Install these stops at
all connections less than 2 -in. diameter to water mains. Use
tapping saddles and valves for larger connections.
7.6.2.2
Curb Stops or Cocks. Install curb stops, with valve
boxes, at the street line to shut off service lines. Where
lines may need draining, use the stop -and -waste type.
7.6.2.3
Goosenecks. Use a flexible gooseneck to connect
nonflexible service pipe to main.
7.6.2.4
Service Meters . Refer to
AWWA Manual M6, Water Meters
- Selection, Installation, Testing,
and Maintenance. For warm
climate, install in a covered meter
box away from traffic. For
cold climate, install indoors or in
a frost proof enclosure.
Types as follows:
a)
Displacement. Use this type when the minimum
flow is below 12 gpm. Use a meter yoke for 1 -in. and smaller
meters.
b)
Compound. These meters are used where flow
ranges exceeding 10 to 1 are to be measured.
c)
Propeller Type (Velocity). Use this type to
measure large flows where only a small loss of head is allowed.
d)
Fire Flow Meter. Fire flow meters should be used
in lines carrying water for fire protection.
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