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NEW YORK STATE DEPARTMENT OF HEALTH
OFFICE OF PUBLIC HEALTHCENTER FOR ENVIRONMENTAL HEALTH
TECHNICAL REFERENCE |
ITEM NO: PWS 14 |
DATE: 11/19/01 |
SUBJECT:
Approved Backflow Prevention Assemblies(Revision)
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Purpose
The purpose of this Technical Reference is to provide a list of approved backflow prevention assemblies for containing potential contamination as required by
Section 5-1.31 of the State Sanitary Code. This list is made available to regulatory agencies, water purveyors, consulting engineers, manufacturers, certified testers,
contractors and the general public.
Policy
- The New York State Department of Health, Bureau of Public Water Supply Protection (BPWSP) will approve only those backflow prevention
assemblies that have been evaluated in accordance with either of the following evaluation procedures:
- Laboratory and Field Evaluation
Each make, model and size of assembly shall successfully complete the Laboratory and Field Evaluation phases of the Foundation for
Cross Connection Control and Hydraulic Research (FCCC&HR) approval program. Upon completion of the evaluation, the manufacturer
shall submit a copy of the Certificate of Approval issued by the FCCC&HR.
- Laboratory Evaluation Only
Each make, model and size of assembly shall undergo a laboratory evaluation by a qualified independent testing laboratory and shall
comply with the latest editions of each of the following standards, as applicable:
- FCCC&HR Manual of Cross-Connection Control, Section 10 - Specifications of Backflow Prevention Assemblies.
- American Society of Sanitary Engineering (ASSE) Standards:
- 1013 - Reduced Pressure Principle Backflow Preventer
- 1015 - Double Check Backflow Prevention Assembly
- 1047 - Reduced Pressure Detector Assembly Backflow Preventer
- 1048 - Double Check Detector Assembly Backflow Preventer
- American Water Works Association (AWWA) Standards:
- C510 - Double Check Valve Backflow Prevention Assembly
- C511 - Reduced Pressure Principle Backflow Prevention Assembly
Upon completion of the evaluation, the manufacturer shall submit copies of the Laboratory Evaluation Report, ASSE Certificate of
Authorization and AWWA Certificate of Compliance.
In addition to the requirements of 1a or 1b above, the manufacturer shall submit copies of the sales literature and installation/maintenance
literature for each model and size assembly. Sample or cutaway units may also be requested for small diameter assemblies.
All information shall be submitted to the following address:
New York State Department of Health
Bureau of Public Water Supply Protection - Design Section
Flanigan Square
547 River Street, 4th Floor
Troy, NY 12180-2216
(518) 402-7676
- All approved assemblies must include resilient seated, full flow shut off valves integral to the assembly. Unless otherwise approved by the
BPWSP, these shut off valves shall be mounted directly to the assembly and shall be supplied by the assembly manufacturer.
- All approved assemblies are designed for horizontal installation. Certain assemblies on this list are also specifically designed with provisions for
vertical inlet/outlet piping in accordance with the manufacturers recommendations.
To be approved for vertical installation, where vertical refers to the device orientation, the assembly must undergo testing in a vertical position in
accordance with the requirements of 1a or 1b above. Those assemblies that are approved for vertical installation are appropriately designated
on the attached list.
- The BPWSP maintains and periodically updates the list of Approved Backflow Prevention Assemblies. Pages 4-9 reflect currently approved
assemblies as of the date of printing. This list supersedes all previous approvals.
- Previously approved assemblies that are out of production or for which only spare parts are available may not appear on this list. Where such
assemblies are currently installed, however, they may remain in service provided that they are appropriate for the degree of hazard. When these
assemblies demonstrate repeated test failures, require frequent maintenance or if spare parts cannot be readily obtained, they must be replaced by a
currently approved assembly.
- The BPWSP reserves the right to remove from the list any assembly that demonstrates deficient or unsatisfactory operation.
- The following is a partial list of typical manufacturers abbreviations that may appear with the approved model/series designation:
- AG, AGD, AGF - air gap, drain, fitting
- B - full port, resilient seated ball valves
- BB - bronze body
- BF - butterfly valves
- EL - vent elbow
- FAE - flanged adapter ends
- FDA - FDA epoxy coating
- FS - flanged strainer
- FSC - FDA epoxy coated flanged strainer
- HW - hot water unit with stainless steel check valves
- M - manifold, modification
- NRS - non-rising stem shutoffs
- OS&Y - outside stem and yoke shutoffs
- QT - quarter turn resilient seated ball valves
- R, RW - resilient seated or resilient wedge shutoffs
- S - strainer
- SS - stainless steel
- U - union connections
- V - approved for vertical installation in accordance with manufacturers instructions
- XL - high temperature service with removable plastic check seats
- N-Shape - See diagram below for an example (please note that this diagram is not intended to represent any specific manufacturer or device)
- Z-Shape - See diagram below for an example (please note that this diagram is not intended to represent any specific manufacturer or device)
The BPWSP should be contacted with any questions regarding this list.
Reduce Pressure Principle Assemblies
| Company |
Model/Series |
Size (In Inches) |
| AMES |
4000-RP
4000 SS
4000B
4000BM2 |
4.0, 6.0, 8.0, 10.0
0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0
0.5, 0.75, 1.0, 1.25, 1.5, 2.0
1.0 |
| BUCKNER |
24000 |
0.75, 1.0, 1.25, 1.5, 2.0 |
| CLA-VAL |
RP-2
RP-4
RP4V
RP6LW
RP6VW
RP7L (W/Y)
RP8L (W/Y)
RP8N (W/Y) - N Shape
RP8V (W/Y) - Z Shape |
0.75, 1.0, 1.25, 1.5
2.0, 2.5, 3.0, 4.0, 6.0, 8.0, 10.0
4.0
0.75, 1.0, 1.25, 1.5, 2.0
0.75, 1.0, 1.5, 2.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0
2.0, 3.0, 4.0, 6.0, 8.0, 10.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0 |
| CONBRACO |
40-200
40-200-A2S |
0.25, 0.375, 0.5, 0.75, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0,
4.0, 6.0, 8.0, 10.0
0.75, 1.0 |
| FEBCO |
825Y
825YA
825YD
845
860
880 - N Shape
880V - Z Shape |
0.75, 1.0, 1.25, 1.5, 2.0
0.75, 1.0, 1.5, 2.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0
0.75, 1.0
0.5, 0.75, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0, 8.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0 |
| FLOMATIC |
RPZ/B9200
RPZII/B9300
B9209 |
0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0
0.5, 0.75
6.0 |
HERSEY/GRINNELL
(BEECO) |
FRP-2
6CM |
0.75, 1.0, 1.25, 1.5, 2.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0 |
| ORION |
BRP |
0.75, 1.0, 1.5, 2.0, 3.0, 4.0 |
| WATTS |
009
U009A
909
909QT
990
994
995QT |
0.5, 0.75, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0
0.75, 1.0, 1.5, 2.0
0.75, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0, 8.0, 10.0
0.75 ( ), 1.0 ()
4.0, 6.0, 8.0
2.5, 3.0, 4.0, 6.0
0.5, 0.75, 1.0, 1.25, 1.5 |
| WILKINS |
575A
575
575-M8
575-M10
975XL
975
975XLU
975XLMS
975MS
975BMS
975XLBMS
975XLSE
975XLSE
975XLSEU
975XLSEU
375
475
475V |
0.75, 1.0
1.25, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0
(4"x4"x8" manifold)
(6"x6"x10" manifold)
0.25, 0.375, 0.5, 0.75, 1.0, 1.25, 1.5, 2.0
0.75, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0, 8.0, 10.0
0.75, 1.0, 1.5, 2.0
0.75, 1.0, 1.25, 1.5, 2.0
2.5, 3.0, 4.0, 6.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0
0.75, 1.0, 1.25, 1.5, 2.0
0.75 (i o),1.0 (io), 1.25 (io),
1.5 (io), 2.0 (io)
0.75 (io),1.0 (io), 1.25 (io),
1.5 (io), 2.0 (io)
0.75 (io),1.0 (io), 1.25 (io),
1.5 (io), 2.0 (io)
0.75 (io),1.0 (io), 1.25 (io),
1.5 (io), 2.0 (io)
2.5, 3.0, 4.0, 6.0, 8.0
4.0 (io), 6.0 (io)
4.0 (io), 6.0 (io) |
NOTE:All assemblies are approved for horizontal installation. The following symbols denote devices which are also approved for vertical installation (where vertical refers to the orientation of the device rotated 90 degrees (up or down) from the horizontal) or with vertical inlet/outlet piping:
| - vertical up only |
io - vertical up inlet and vertical down outlet |
| - vertical down only |
io - vertical up inlet and vertical up outlet |
| - vertical up and down |
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Double Check Valve Assemblies
| Company |
Model/Series |
Size (In Inches) |
| AMES |
2000-DCA
2000 SE
2000 SS
2000B
2000CIV
2001 SS |
4.0, 6.0, 8.0, 10.0
2.5, 6.0 (), 8.0 ()
0.75 (), 1.0 (), 1.5, 2.0, 2.5 (), 3.0 (), 4.0 (), 6.0 (), 8.0, 10.0
0.5 (), 0.75 (), 1.0, 1.25 (), 1.5 (), 2.0 ()
4.0, 6.0, 8.0, 10.0
3.0 (), 4.0 () |
| BUCKNER |
24100 |
0.75, 1.0, 1.25, 1.5, 2.0 |
|
| CLA-VAL |
D-2
D-4
DC6LW
DC7L (W/Y)
DC8L (W/Y)
DC8N (W/Y) - N Shape
DC8V (W/Y) - Z Shape |
0.75, 1.0, 1.25, 1.5
2.0, 2.5, 3.0, 4.0, 6.0, 8.0, 10.0
0.75 (), 1.0, 1.5, 2.0
2.5, 3.0 (), 4.0 (), 6.0 (), 8.0, 10.0
4.0 (), 6.0 (), 8.0 ()
2.5, 3.0, 4.0 (), 6.0 ()8.0
2.5, 3.0, 4.0, 6.0, 8.0 |
| CONBRACO |
40-100
DC |
0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0, 8.0, 10.0
0.5 (), 2.5 (), 3.0 (), 4.0 (), 6.0 () |
| FEBCO |
805Y
805YD
850
870
870V
870 - N Shape
870V - Z Shape |
0.75 (), 1.0, 1.5, 2.0
2.5, 3.0 (), 4.0 (), 6.0 (), 8.0, 10.0
0.5 (), 0.75 (), 1.0 (), 1.25 (), 1.5 (), 2.0 (), 2.5 (), 3.0 (), 4.0 (), 6.0 (), 8.0 ()
4.0 (), 6.0 (), 8.0
4.0 (), 6.0 (), 8.0 ()
2.5, 3.0, 10.0
2.5, 3.0 |
| FLOMATIC |
DCV/B9100
B9107
B9109 |
0.75, 1.0, 1.5, 2.0, 2.5, 3.0
4.0
6.0 |
HERSEY/GRINNELL
(BEECO) |
FDC
HDC
No. 2 |
0.75, 1.5, 2.0
0.75, 1.0, 1.5, 2.0
3.0, 4.0, 6.0, 8.0, 10.0 |
| KENNEDY |
1373 |
4.0, 6.0, 8.0, 10.0 |
| ORION |
BDC |
0.75, 1.0, 1.5, 2.0, 3.0, 4.0 |
| WATTS |
007
709
774
774X
775
775QT |
0.50 (), 0.75 ( ), 1.0 (), 1.5 (), 2.0 (), 2.50 (), 3.0 ()
0.75 (), 1.0 (), 1.25 (), 1.5 (), 2.0 (), 2.5 (), 3.0 (), 4.0 (), 6.0 (), 8.0 (), 10.0 ()
0.75, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0, 4.0 (), 6.0 (), 8.0
6.0 (), 8.0 ()
3.0 (), 4.0 ()
0.5 (), 0.75 (),1.0 (), 1.25 (), 1.5 () |
| WILKINS |
550A
550
550-M8
550-M10
950
950XL
950XLT
950XLU
350
450 |
0.75, 1.0
1.25, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0
(4"x4"x8" manifold)
(6"x6"x10" manifold)
0.75, 1.0, 1.25, 1.5, 2.0, 2.5 (), 3.0 (), 4.0 (), 6.0 (), 8.0 (), 10.0 ()
0.75 (), 1.0, 1.25, 1.5, 2.0
0.75, 1.0
0.75, 1.0, 1.5, 2.0
2.5 (), 3.0 (), 4.0 (), 6.0 (), 8.0 ()
4.0 (io), 6.0 (io) |
NOTE:All assemblies are approved for horizontal installation. The following symbols denote devices which are also approved for vertical installation (where vertical refers to the orientation of the device rotated 90 degrees (up or down) from the horizontal) or with vertical inlet/outlet piping:
| - vertical up only |
 - vertical up inlet and vertical down outlet |
| - vertical down only |
- vertical up inlet and vertical up outlet |
| - vertical up and down |
|
Double Check Detector Assemblies
| Company |
Model/Series |
Size (In Inches) |
| AMES |
3000 DCDA
3000 SE
3000 SS
3000B
3000CIV
3001 SS |
4.0, 6.0, 8.0, 10.0
2.5, 6.0 (), 8.0 ()
2.5 (), 3.0 (), 4.0 (), 6.0 (), 8.0, 10.0
2.0
4.0 (), 6.0 (), 8.0 (), 10.0 ()
3.0 (), 4.0 () |
| CLA-VAL |
DD7LY
DD8LY
DD8NY - N Shape
DD8VY - Z Shape |
3.0, 4.0 (), 6.0 (), 8.0, 10.0
4.0 (), 6.0 (), 8.0 ()
4.0 (), 6.0 (), 8.0
4.0, 6.0, 8.0 |
| CONBRACO |
40-600
DCDA |
3.0, 4.0, 6.0, 8.0, 10.0
2.5 (), 3.0 (), 4.0 (), 6.0 () |
| FEBCO |
806YD
856
876
876V |
3.0, 4.0 (), 6.0 (), 8.0, 10.0
2.5, 3.0, 4.0 (), 6.0 (), 8.0 ()
2.5, 3.0, 4.0 (), 6.0 (), 8.0, 10.0
2.5, 3.0, 4.0 (), 6.0 (), 8.0 () |
HERSEY/GRINNELL
(BEECO) |
DDC-II |
3.0, 4.0, 6.0, 8.0, 10.0 |
| WATTS
| 007 DCDA
709 DCDA
774 DCDA
774 XDCDA
775 DCDA |
2.0 (), 2.5 (), 3.0
3.0 (), 4.0 (), 6.0 (), 8.0 (), 10.0 ()
4.0 (), 6.0 (), 8.0
6.0 (), 8.0 ()
3.0 (), 4.0 () |
| WILKINS |
550 DCDA
950DA
350DA
450DA |
2.5, 3.0, 4.0, 6.0
2.5 (), 3.0 (), 4.0 (), 6.0 (), 10.0 ()
4.0 (), 6.0 ()
4.0 (io), 6.0 (io) |
NOTE:All assemblies are approved for horizontal installation. The following symbols denote devices which are also approved for vertical installation (where vertical refers to the orientation of the device rotated 90 degrees (up or down) from the horizontal) or with vertical inlet/outlet piping:
| - vertical up only |
- vertical up inlet and vertical down outlet |
| - vertical down only |
 - vertical up inlet and vertical up outlet |
| - vertical up and down |
|
Reduced Pressure Detector Assemblies
| Company |
Model/Series |
Size (In Inches) |
| AMES |
5000 RPDA |
4.0, 6.0, 8.0, 10.0 |
| CLA-VAL |
18
RD7LY |
10.0
2.5, 3.0, 4.0, 6.0, 8.0, 10.0 |
| CONBRACO |
40-700 |
3.0, 4.0, 6.0, 8.0, 10.0 |
| FEBCO |
826YD |
2.5, 3.0, 4.0, 6.0, 8.0, 10.0 |
HERSEY/GRINNELL
(BEECO) |
6CM-RPDA |
4.0, 6.0, 8.0, 10.0 |
| WATTS |
909 RPDA |
3.0, 4.0, 6.0, 8.0, 10.0 |
| WILKINS |
375DA
475DA
475DAV
975DA
975MS |
4.0, 6.0
4.0 (io), 6.0 (io)
4.0 (io)
2.5, 3.0, 4.0, 6.0, 8.0, 10.0
8.0, 10.0 |
NOTE:All assemblies are approved for horizontal installation. The following symbols denote devices which are also approved for vertical installation (where vertical refers to the orientation of the device rotated 90 degrees (up or down) from the horizontal) or with vertical inlet/outlet piping:
| - vertical up only |
- vertical up inlet and vertical down outlet |
| - vertical down only |
- vertical up inlet and vertical up outlet |
| - vertical up and down |
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