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Basic Installation Instructions cont'd

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.

Capacity Required for Parallel

System

Two 4" Devices

1000 GPM

Two 6" Devices

2000 GPM

Two 8" Devices

3000 GPM

Two 10" Devices

5000 GPM

Table shows total capacity provided with dual

valve installations of various sizes.

Indoor Installations

Ames 2000 CIV

with Strainer

⁄

" - 10"

Strainer

For indoor installations, it is important that

the valve be easily accessbile to facilitate

testing and servicing.

Outdoor Installations

Above Ground in Insulated Enclosure

Min. 12"

Ames Model 2000 CIV

Ames 2000 CIV

⁄

" - 10"

Meter

Strainer

⁄

" - 10"