Install Instructions

2
Installation Instructions
Series 007 and LF007
1
⁄2" - 2" (15 - 50mm)
First
Shutoff Valve
Strainer
First Shutoff
Valve
007QT-S Vertical flow-up installation
007QT-S / LF007
Strainer
Meter Box Installation
WattsBox Insulated Enclosure
Available in Aluminum or Fiberglass.
For more information, send for ES-WB.
First
Shutoff Valve
First Shutoff Valve
Figure 1
Figure 2
Figure 3
007QT-S / LF007
Indoors - Figure 1
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 inline 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 emer-
gencies, such as fire sprinkler lines, etc.
It is important that Series 007 and LF007 be tested periodi-
cally in compliance with local codes, but at least once a year
or more often depending upon system conditions. Regular in-
spection, testing and cleaning assures maximum life and proper
product function.
NOTE: 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 shutoff 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.
When the test is completed, the trim valves must be returned to
a fully open position.
Parallel - Figure 3
Two or more Series 007 and LF007 smaller size valves may be
piped in parallel (where approved) to serve a larger supply pipe
main. This type of installation is employed whenever it is vital
to maintain a continuous supply of water/where interruptions
for testing and servicing would be unacceptable. It also has
the advantage of providing increased capacity where needed
beyond that provided by a single valve and permits testing or
servicing of an individual valve without shutting down the
complete line.
For two valve installations the total capacity of the devices
should equal or exceed that required by the system.
The quantity of valves used in parallel should be determined by
the engineers judgement based on the operating conditions of
a specific installation.