Gulf Bearing-SP 950426Series 007QT
DOUBLE CHECK
VALVE ASSEMBLY
Sizes: 3/4", 1", 11/2" and 2" bolted cover
A double Check valve assembly shall be installed at referenced
cross-connections to prevent the backflow of polluted water into
the potable water supply. Only those cross-connections identified
by local inspection authorities as non-health hazard shall be
allowed the use of an approved double check valve assembly.
Check with local authority having jurisdiction regarding vertical
orientation, frequency of testing or other installation requirements.
The valve shall meet the requirements of ASSE Std. 1015 and
AVVWA Std. C510. Approved by the Foundation for Cross-
Connection Control and Hydraulic Research at the University of
Southern California.
FEATURES
Ease of maintenance - single top entw cover.
· Replaceable seats.
· Modular construction tot compact design
· Bronze body construction.
· Bail valve test cocks.
· Low pressure drop.
· Available with bronze strainers.
· Design simplicity for easy maintenance.
· NO SPECIAL TOOLS REQUIRED FOR SERVICING
OPTIONS' (o.,io., c.. ~, combined)
Prefix:
U- Union connections.
Suffix:
S- with bronze strainer.
QT- with quarter turn, full port, resilient seated, bronze ball valve
shutofls. Size 3/4' and 1" have tee handles.
LF- without shutoff valves.
SPECIFICATIONS
For Double Check Valve Backflow Preventers
A double check valve assembly shall be installed at referenced
cross-connections to prevent the backflow of polluted water into
the potable water supply. The bronze bodied assembly shall con-
sist of two independently operating center stem guided check
modules. Each check module shall include a captured spring,
replaceable seat and replaceable seat disc. The check modules
shall be accessed through a single top entry cover. The assembly
shall also include four top mounted ball type test cocks and two
resilient seated isolation valves.
The assembly shall be listed or approved under the requirements
of ASSE Std. 1015; AW~NA Std. C510 and CSA B64.5. Approv-
ed by the Foundation for Cross-Connection Control and Hydraulic
Research at the University of Southern California. Watts Regulator
.... ! . Company Series 007QT.
ES-007S
No. 007QT (1~/;", 2")
No. 007M1
CHECK MODULE ASSEMBLY
The 007QT Series features a modular design con-
cept which facilitates complete maintenance and
assembly by retaining the spring load.
Test
Fi~ ~
check I ~=-.I Second
Module I ~'~*~ I Check
~ A~
;,,,;,, .,¥,?,,', ,,,, ...... ,,,,',,,,,,,~ ,~ ??'
IMPORTANT: INQUIRE WITH GOVERNING AUTHORmES FOR
LOCAL INSTALLATION REQUIREMENTS.
REGULATOR
Since 1874
Hdqtrs: 815 Chestnut St., No. Andover, MA 01845-6095 USA
Mail: Box 628. Lawrence, MA 01842-1328 Telez: 94-7460
Tel. (508) 688-1811 Fa][: (508) 794-1848
Watts Industries (Canada) Inc.
Tel. (4161 851-8591 Fax: (416) 851-8788
Watts Regulator (Nederland) b.v. Tele][: 844-35365
CAPACITY
No. 007M1 Sizes 3/4" and 1"
3/4" 007M1
PSI6 *
12
~0
2
*Typical maximum system flow rate (7.5 feet/sec.)
No. 007 Sizes 11/2"and 2"
PSi6
12
10
6
2
0 5 10 15 20 25 30 35 GPM
5 7.5 10 15 20 FPS
1" 007M1
PSI6
10
6
4
0 5 10 15 20 25 30 35 40 45 50 55 60 GPM
5 7.5 10 15 20 FPS
2
0 25 50 75 100 125
5 7_5 10 15
2"007
PSI6 .
b-lOM
FPS
5 7.5 10 15 FPS
PRESSURE - TEMPERATURE
Model~ 007 are suitable for supply pressure up to 175 PSI
and water temperature of up to 140°F constant and
180c F intermittent.
MATERIALS
Bronze body construction. Durable tight seating rubber
discs, bronze ball type test cocks. Model 007 acetal check
seats.
Series O07QT furnished with quarter turn, full port, resilient
seated, bronze ball valve shutoffs.
DIMENSIONS - WEIGHTS
A
; I ¥4", 1"
NO. O07QT Dimensions in inches 0Ngt. in lbs.)
Size Type A B C D E F Wgt.
.3/4" 007M1-QT 121/, 4'1~ 5'/, 7
O07MI-QT-S 15¥. 4'h2 5"la 3 6:¥, 9
1" O07M1-QT 13'/, 4t/32 5¥8 8
007M1-QT-S 17'¥~, 4V32 5V8 33/4 73/4 11
1% ,, O07.QT 22 4¥4 7 12'/~ 263/,
007-OT-S 28sis
2" 007.QT 233/,
007-QT-S 31V~ 4¥, 7 12'/2 38¥8
*Note: For information on ~/.' 007M2 send for ES-007M2
ES-O07S 933
Tested and certified under the following standards for dou-
ble check valve assemblies: ASSE No. 1015; AWVVA Sta?'-
dard C510 and IAPMO listed, file No. 1844. Model numbe~
007, M1-QT approved by the Foundation for CrosS-~
Connection Control and Hydraulic Research at the Univer-
sity of Southern California.
G_L . .
Size Type G H
¥." 007M1-QT 1
1' 00?MI-QT 1"/,~" I'V,."
1'/2 007
2" 007
Printed in U.S.A.