Ames Fire & Waterworks 200B Bronze Double Check Valve Assemblies - Manual (Page 2)

First
Shutoff Valve
200BS
Strainer
2
Indoor Installation
Ames Series 200B Double Check Valve Assemblies
Check local codes for installation requirements. Pipe lines
should be thoroughly flushed to remove foreign material before
installing the unit. A strainer should be installed as shown,
ahead of backflow preventer to prevent disc from unnecessary
fouling. Install valve in the line with arrow on valve body pointing
in the direction of flow.
For indoor installations, it is important that the valve be easily
accessible to facilitate testing and servicing. Do not install in a
concealed location.
CAUTION !
Do not install with strainer when backflow preventer is used
on seldom used water lines which are called upon during
emergencies, such as fire sprinkler lines, etc.
It is important that series 200B be tested periodically in compliance
with local codes, but at least once a year or more often depending
upon system conditions. Regular inspection, testing and cleaning
assures maximum life and proper product function.
NOTICE
Fire Protection System Installations
The National Fire Protection Agency (NFPA) Guidelines require a
confirming flow test to be conducted whenever a “main line” valve
such as the shut off valves or a backflow assembly have been
operated. Certified testers of backflow assemblies must conduct
this test. The trim valves of the confirming flow test must be closed
during the test. When the test is completed the trim valves must be
returned to a fully open position.
Basic Installation Instructions
Outside Installation
Consult Local codes for Approval
Parallel Installation
Where approved by code, Ames recommends a custom
engineered Ames PVS series water supply valve station
consisting of two or more 200B series valves piped in parallel to
serve a larger supply main. This type of installation is employed
whenever it is required to maintain water flow to a facility. Typical
applications include hospitals, multi-family dwellings, malls and
other similar applications.
A properly designed Ames PVS valve station provides redundant
flow paths, a continuous supply of adequate water, testing and
servicing of an individual valve without supply interruption, and
long service life.
The size, quantities and design of parallel valve installations
should be exactly in accordance with the engineers judgment
and the published Best Practice Guide of Ames wherever
possible. For a copy of the Ames Best Practice Guide, call Ames
at 916-928-0123.
Meter Box
Installation
200BS
Min. 12"
200BA
First
Shutoff Valve
First Shutoff
Valve
200BS Vertical flow-up or vertical flow-down installation (flow-up shown)
Strainer
Ames
200B