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Indoor Installations
For indoor installations, it is important
that the valve be easily accessible to
facilitate testing and servicing.
Outdoor Installations
In area where freezing conditions do not
occur, Model 2000 CIV / 3000 CIV can be
installed outside of a building. The most
satisfactory installation is above ground
and should be installed in this manner
whenever possible.
It is generally recommended that back-
flow preventers never be placed in pits
unless absolutely necessary and then only
when approved by local codes. In such
cases, a modified pit installation is pre-
ferred or an insulated above ground insu-
lated enclosure.
Parallel Installations
Two or more Model 2000 CIV / 3000 CIV
devices may be piped in parallel (where
approved) to serve a large supply pipe
main. This type of installation is employed
whenever it is vital to maintain a continu-
ous supply of water where interruptions
for testing and servicing would be unac-
ceptable. It also has the advantage of pro-
viding increased capacity where needed
beyond that provided by a single valve.
For two valve installations the total ca-
pacity of the devices should equal or
exceed that required by the system. The
capacity table below shows the size of
the Model 2000CIV / 3000CIV devices
required to meet a certain capacity. The
quantity of devices used in parallel should
be determined by the engineer's judge-
ment based on the operating conditions
of a specific installation.
Ames 2000 CIV
with Strainer
2
1
⁄
2
" - 10"
Strainer
Meter
Strainer
Ames 2000 CIV
2
1
⁄
2
" - 10"
Indoor Installations
Outdoor Installations
Above Ground in Insulated Enclosure
For indoor installations, it is important that
the valve be easily accessbile to facilitate
testing and servicing.
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Basic Installation Instructions cont’d
Capacity Required for Parallel
System
1000 GPM
Two 4" Devices
2000 GPM
Two 6" Devices
3000 GPM
Two 8" Devices
5000 GPM
Two 10" Devices
Table shows total capacity provided with dual
valve installations of various sizes.
Ames Model 2000 CIV
2
1
⁄
2
" - 10"
