Standard #1048

Double Check Detector Fire Protection Backflow Prevention Assemblies

ANSI Approved - 2005

ASSE Revised - 2005

Ames Company, Inc.

(The following products are also listed with an RS suffix)

Revision: 2005

Model: 3000 SS RS

Size: 2½”, 3", 4", 6" – Vertical & Horizontal flow up

Issued: 06/28/1991

Revision: 2005

Model: 3000 SE RS – Horizontal & Vertical flow up

Size: 8"

Issued: 12/09/1992

Revision: 2005

Model: 3000 SE RS – Horizontal & Vertical flow up

Size: 6"

Issued: 11/24/1993

Revision: 2005

Model: 3000 SS – Horizontal & Vertical flow up & down

Size: 8", 10", 12"

Watts FBV (FBV-E) -QT

Issued: 12/13/1994

Revision: 2005

Model: 3000 SE – Horizontal & Vertical flow up & down

Size: 2½”

Issued: 03/13/1995

Revision: 2005

Model: 3000 CIV – Horizontal & Vertical flow up

Size: 4", 6", 8", 10"

Issued: 05/26/1998

Revision: 2005

Model: 3000B – Horizontal & Vertical flow up

Size: 2"

Issued: 10/15/1998

Revision: 2005

Model: 3000SSF RS – Horizontal & Vertical flow up w/Kennedy KS II shut off

Size: 2½”, 3", 4"

Issued: 02/23/1999

Amended: 08/04/2008

Revision: 2005

Model: Maxim 300a – Horizontal & Vertical up & Maxim 300Na

Size: 2½”, 3”, 4" w/Clow Series F6104/05/37/38/36/02: Kennedy Series 7592/93/61 & 7092/93/68: Union Series GV 12: Victaulic Series 702: Hunter Series BFV,

Maxim 300 – Horizontal & Vertical up & Maxim 300N

Size: 2½”, 3”, 4”, 6”, 8”, 10" w/Clow Series F6104/05/37/38/36/02: Kennedy Series 7592/93/61 & 7092/93/68: Union Series GV 12: Victaulic Series 702: Hunter Series BFV

Model: Colt 300a – Horizontal & Vertical up & Colt 300Na

Size: 2½”, 3”, 4”, 6" w/Clow Series F6104/05/37/38/3602: Kennedy Series 7592/93/61 & 7092/93/68: Union Series GV 12: Victaulic Series 702: Hunter Series BFV

Model: Colt 300 – Horizontal & Vertical up & Colt 300N w/Clow Series F6104/05/37/38/3602: Kennedy Series 7592/93/61 & 7092/93/68: Union Series GV 12: Victaulic Series 702: Hunter Series BFV

Size: 2½”, 3”, 4”, 6”, 8”, 10" w/Clow Series F6104/05/37/38/36/02: Kennedy Series 7592/93/61 & 7092/93/68: Union Series GV 12: Victaulic Series 702: Hunter Series BFV

Issued: 11/12/2001

Revision: 2005

Model: 3000B(LF)

Size: 2” – Horizontal

Issued: 04/13/2006

Apollo Valves (Conbraco Industries)

Revision: 2005

Model: DCDA – Horizontal & Vertical Up w/ Kennedy KSII Gate Valves

Size: 2½”, 3", 4", 6"

Issued: 04/05/2000

Amended: 01/15/2001, 04/17/2007, 01/28/2008

Revision: 2005

Model: 10DCDA – Horizontal & Vertical Up W/ Kennedy KS II

Size: 10"

Issued: 08/03/2001

Amended: 01/28/2008

Revision: 2005

Model: 10DCDA-U Vertical Up/Vertical Down w/90 deg elbows W/Kennedy KSII Gate Valve

Size: 10"

Issued: 08/03/2001

Amended: 01/28/2008; 01/30/2008

Revision: 2005

Model: DCDA – Horizontal & Vertical flow up w/ Kennedy KS II

Size: 8”

Issued: 07/31/2001

Amended: 01/28/2008

Revision: 2005

Model: DCDA-U –Vertical Up/Vertical Down w/90 deg elbows w/Kennedy KS II Gate Valves

Size: 8”

Issued: 07/31/2001

Amended: 01/28/2008; 01/30/2008

Revision: 2005

Model: 4D-600 Series – Horizontal & Vertical Up w/Kennedy KS-II Resilient Seat Gate Valves or Victaulic Series 702 Butterfly Valves

Size: 2½”, 3”, 4” & 6”

Issued: 12/29/2004

Amended: 08/30/2007

Revision: 2005

Model: 4D-600 Series – Horizontal & Vertical up w/Victaulic Model 702 & Kennedy KS2 Gates

Size: 8” & 10”

Issued: 08/29/2005

Amended: 01/30/2008

Revision: 2005

Model: 4SG-600 Series

Size: 2 ½”, 3”, 4”, 6”, 8” – Horizontal & Vertical Up w/Victaulic Series 702 Butterfly Valves & Kennedy KS II gates

Issued: 04/17/2007

Revision: 2005

Model: 4SG-600U Series

Size: 2 ½”, 3”, 4”, 6”, 8” – Vertical Up/Vertical down w/ 90° elbows & Kennedy KS-II Gate Valves and Victaulic Series 702 Butterfly Valves

Issued: 01/30/2008

Conbraco Industries

See Apollo Valves (Conbraco Industries)

FEBCO

Revision: 2005

Model: 806 YD – Horizontal w/Kennedy KS-II

Size: 4", 6", 8", 10"

Issued: 10/01/1987

Revision: 2005

Model: 856 – Horizontal & Vertical Up w/ Kennedy KS-II or Kennedy flange by groove OS&Y, Watts 405-RW NRS Series, Watts 409 OSY Series, Kennedy Series 7092ABF-OSY

Size: 2½”, 3”, 4", 6", 8” & 10”

Issued: 03/24/1992

Amended: 03/01/2006

Revision: 2005

Model: 876V – Horizontal & Vertical Up w/Kennedy KS-II or Kennedy flange by groove OS&Y, Watts 405-RW NRS Series, Watts 409 OSY Series, Kennedy Series 7092ABF-OSY

Size: 2½”, 3”, 4”, 6”, 8” & 10”

Issued: 07/13/1993

Amended: 03/01/2006

Revision: 2005

Model: 858

Size: 2½” & 3” - Horizontal w/ Clow R/W F6102 & 6136OSY, Waterous 500 NRS & OSY, Kennedy Ken Seal II NRS & OSY, Watts 405, 408, 409

Issued: 02/27/2006

Watts Regulator Co.

Revision: 2005

Model: 709DCDA (LF) 709DCDA (SR)
Size: 4”, 6”, 10” – Horizontal & Vertical Up w/ Watts 405 RW, Watts 408 OSY, Clow R/W F6102-NRS, Clow R/WF6136-OSY, American Flow Control (Waterous) Series 500 NRS & OSY, Kennedy Ken Seal II NRS & OSY, Stockham G-610-OSY

Issued: 08/08/1990

Amended: 03/27/1997, 01/06/1998, 02/28/2006

Revision: 2005

Model: 709DCDA (LF) 709DCDA (SR)

Size: 3” – Horizontal w/ Watts 405 RW, Watts 408 OSY, Clow R/W F6102-NRS, Clow R/WF6136-OSY, American Flow Control (Waterous) Series 500 NRS & OSY, Kennedy

Ken Seal II NRS & OSY, Stockham G-610-OSY

Issued: 08/08/1990

Amended: 02/28/2006

Revision: 2005

Model: 007DCDA (LF)

Size: 2½” & 3½” - Horizontal w/ Watts 405 RW, Watts 408-OSY, Clow R/W F6136-OSY, American Flow Control (Waterous) Series 500 NRS & OSY, Kennedy Ken Seal II NRS & OSY, Stockham G-610-OSY, Clow 102-NRS, Watts Regulator 409 RW OS & Y

Issued: 10/1/1993

Amended: 02/28/2006

Revision: 2005

Model: 007DCDA (LF, PC)

Size: 2” - Horizontal w/ American Flow (94-R) OS & Y, Watts Regulator 409 RW OS&Y

Issued: 05/16/1996

Amended: 02/28/2006

Revision: 2005

Model: 774 DCDA SR

(LF-774 DCDA SR) – Horizontal & Vertical flow up & down

Size: 8", 10", & 12" (Watts 007 M2-QT shut-off)

Issued: 08/01/1997

Revision: 2005

Model: 774 XDCDA SR

(LF-774 XDCDA SR) – Horizontal & Vertical flow up & down

Size: 2½”, 6", & 8" (8" w/Kennedy shut-off)

Issued: 09/04/1997

Revision: 2005

Model: 774 DCDA SR

(LF-774 DCDA SR) – Horizontal & Vertical flow up with Kennedy shut-off on 4", 6"

Size: 2½”, 3", 4", 6" w/Waterous R/W Gate Valve OS&Y

Issued: 09/04/1997

Revision: 2005

Model: 007DCDA (LF, SR)

Size: 2” - Vertical Up w/ Sensus Model II 5/8 x ¾ inch, Watts Regulator 409 RW OS& Y

Issued: 02/25/1998

Amended: 02/28/2006

Revision: 2005

Model: 709DCDA (LF) 709DCDA (SR)

Size: 8” – Horizontal & Vertical Up w/ Watts 405 RW, Watts 408 OSY, Clow R/W F6102-NRS, Clow R/WF6136-OSY, American Flow Control (Waterous) Series 500 NRS & OSY, Kennedy Ken Seal II NRS & OSY, Stockham G-610-OSY

Horizontal Issued: 08/08/1990

Vertical Up Issued: 03/14/1998

Amended: 02/28/2006

Revision: 2005

Model: 757 DCDA – Horizontal & Vertical Up & 757N DCDA "N" Pattern w/Clow Gate, Series F6104,05/37/38/36/02 Kennedy Gate Series 7592/93/61 & 7092/93/68 Union Gate Series GV12 Victaulic Butterfly, Series 702 Hunter Butterfly, Series BFV

Size: 2½”, 3”, 4”, 6”, 8”, 10”

Issued: 07/15/2002

Amended: 03/09/2006

Revision: 2005

Model: 757aDCDA – Horizontal & Vertical Up & 757Na DCDA "N" Pattern w/Clow Gate, Series F6104/05/37/38/36/02 Kennedy Gate Series 7592/93/61 & 7092/93/68 Union Gate, Series GV 12 Victaulic Butterfly, Series 702 Hunter Butterfly, Series BFV

Size: 2½”, 3”, 4”, 6”

Issued: 07/15/2002

Revision: 2005

Model: 767 DCDA – Horizontal & Vertical Up & 767N DCDA "N" Pattern w/Clow Gate, Series F6104/05/37/38/36/02 Kennedy Gate Series 7592/93/61 & 7092/93/68 Union Gate, Series GV 12 Victaulic Butterfly, Series 702 Hunter Butterfly, Series BFV

Size: 2½”, 3”, 4”, 6”, 8”, 10”

Issued: 07/15/2002

Revision: 2005

Model: 767aDCDA – Horizontal & Vertical Up & 767Na DCDA "N" Pattern w/Clow, Series F6104/05/37/38/36/02 Kennedy Gate Series 7292/93/61 & 7092/93/68 Union Gate, Series GV 12 Victaulic Butterfly,Series 702 Hunter Butterfly, Series BFV

Size: 2½”, 3”, 4”

Issued: 07/15/2002

Wilkins/Division of Zurn

Model: 350 DA & 350ADA

Size: 2½” & 3” – Horizontal & Vertical Up w/ Wilkins Model 48 Gate Valve

Issued: 06/01/2001

Amended: 01/04/2007, 10/23/2007

Revision: 2005

Model: 350DA & 350ADA

Size: 4” & 6" – Horizontal & Vertical Up w/ Wilkins Model 48 Gate Valve

Issued: 11/06/1997

Amended: 10/23/2007

Revision: 2005

Model: 450 DA

Size: 4", 6" – Horizontal w/Wilkins 950 XL (bypass), Victaulic 702 butterfly shutoff valve, or Wilkins Model 48 Gate Valve

Issued: 07/21/1998

Amended: 07/07/2005, 10/23/2007

Revision: 2005

Model: 450 DAV

Size: 4" – Vertical flow up w/Victaulic 702 butterfly shutoff valve, ¾” Wilkins Model 950XL balls valves, or Wilkins Model 48 Gate Valve

Issued: 08/31/1998

Amended: 07/07/2005, 10/23/2007

Revision: 2005

Model: 350 DA 350 ADA – Horizontal & Vertical Up

Size: 8"

Issued: 07/09/2001

Revision: 2005

Model 450DA – Horizontal w/Neptune T-10

Size: 8”

Issued: 07/24/2001

Revision: 2005

Model 350DA & 350ADA – Horizontal & Vertical Flow Up

Size: 10”

Issued: 09/03/2003

Amended: 01/04/2007

Revision: 2005

Model 450DA – Vertical Up & Down w/Badger Model 25 5/8" x ¾” meter

Size: 10”

Issued: 03/17/2004

Revision: 2005

Model: 950XLTDA - Horizontal & Vertical Flow Up w/main line: Wilkins 2” model 2-48OSYCIT (AFC 2502) and bypass line: Wilkins ¾” Model 850 U & 850TU Ball Valves- QT

Size: 2”

Issued: 09/18/2007

Revision: 2005

Model: 950XLTDA

Size: 2” – Horizontal & Vertical Flow Up w/mainline Wilkins 2” model 2-48OSYCIT (AFC-2502) and bypass line: Wilkins ¾” model 850U and 850TU Ball Valves – QT

Lab Cycle Tested

Issued: 09/18/2007

Revision: 2005

Model: 950XLTDABF

Size: 2” – Horizontal & Vertical Up w/ Milwaukee 2” model BB-SC-100 Butterfly Valves & By-Pass Wilkins ¾’ model 850U & 850Tu Ball Valves – QT and meter Badger 5/8” by ¾” model 24

Issued: 06/23/2008