SHUT-OFF VALVE #1
SHUT-OFF VALVE #2
INSULATED ENCLOSURE SHALL BE AS SPECIFIED IN CLT WATER ENCLOSURE
INFORMATION - HEATED INSULATED ENCLOSURE IS RECOMMENDED.
NO INSULATION SHALL BE WRAPPED AROUND BPA.
4.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL AND MUST BE
OUTSIDE OF ZONING SET-BACK/ DIRECTLY BEHIND METER.
5.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
6.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING RESULTS TO
CLT WATER.
7.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER BACKFLOW INSPECTOR.
CHECK VALVE #2
CHECK VALVE #1
STRAINER
RECOMMENDED
FLOW
TYPE K OR L COPPER TUBING
PIPE OR GALVANIZED STEEL
PIPE FOR MIN. OF 5' ON EACH
END OF THE ASSEMBLY.
SEE NOTE #2
TEST
COCK #1
12" MIN.
30" MAX.
HINGED ACCESS OR
REMOVABLE INSULATED
ENCLOSURE MEETING ASSE
1060 SPECIFICATIONS.
ENCLOSURE TO INCLUDE
DRAIN PORT(S) PER CLT WATER
REQUIREMENT.
LOWEST
POINT
OR RELIEF
VALVE
OUTLET
SLOPE GROUND
AWAY FROM
COVER (TYP.)
SLEEVE REQUIRED
(TYP.)
CLT WATER REQUIRED BPA
ABOVE GROUND
ZONING
SETBACK
5.3.2016
3.
VERSION DATE
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
1.1
2.
1
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
REDUCED PRESSURE PRINCIPLE
REDUCED PRESSURE
PRINCIPLE ASSEMBLY
1.
VERSION NO.
NOTES:
SLEEVE REQUIRED (TYP.)
SEE
NOTE #4 & #5
PROPERTY
LINE
CLT WATER
METER
TYPICAL LOCATION REQUIREMENT
FOR ABOVE GROUND INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
PUBLIC
WATER
MAIN
ROAD R/W
SUPPORT AS
REQUIRED BY
DESIGNER
MIN. 4" THICK
CONCRETE
PAD REQUIRED
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS SPECIFICATION. ALL JOINTS SHALL BE RESTRAINED WITH
MEGALUG RESTRAINTS OR APPROVED EQUAL.
4.
SUPPORT OF ASSEMBLY SHALL BE DESIGNED BY OWNER, 8" - 12" SHALL
BE SUPPORTED AT EACH VALVE AND SHALL NOT BLOCK RELIEF VALVE
ON DRAIN PORT.
5.
INSULATED ENCLOSURE SHALL BE AS SPECIFIED IN CLT WATER ENCLOSURE
INFORMATION - HEATED INSULATED ENCLOSURE ARE REQUIRED FOR
FIRE LINE SERVICES. NO INSULATION SHALL BE WRAPPED AROUND BPA.
6.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL AND MUST BE
OUTSIDE OF ZONING SET-BACK DIRECTLY BEHIND METER.
7.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
8.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
9.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL FROM THE APPROPRIATE CLT
WATER BACKFLOW INSPECTOR.
SHUT-OFF VALVE #2
SEE NOTE #2
SHUT-OFF VALVE #1
SEE NOTE #2
6" MIN.
CHECK VALVE #1
COVER MUST NOT
OBSTRUCT VALVE
BEING FULLY
OPENED
CHECK VALVE #2
TEST COCK #1
RESTRAINED JOINT
SEE NOTE #3
HINGED ACCESS OR
REMOVABLE INSULATED
ENCLOSURE MEETING ASSE
1060 SPECIFICATIONS.
ENCLOSURE TO INCLUDE
DRAIN PORT(S) PER CLT WATER
REQUIREMENT.
SUPPORTS
SEE NOTE #4
SUPPORTS
SEE NOTE #4
FLOW
12" MIN.
30" MAX.
DUCTILE IRON PIPE OR
TYPE K OR L COPPER
TUBING FOR MIN. OF 5'
ON EACH END OF ASSEMBLY.
SEE NOTE #3
RELIEF VALVE
OUTLET
SLOPE GROUND
AWAY FROM
COVER
LOWEST POINT OR
RELIEF VALVE OUTLET
SLEEVE REQUIRED
(TYP.)
SLEEVE REQUIRED
(TYP.)
SUPPORT, PAD AND
CONCRETE FOOTINGS AS
REQUIRED BY SYSTEM DESIGNER
CLT WATER REQUIRED BPA
ABOVE GROUND
MIN. 4" THICK
CONCRETE PAD
REQUIRED
SEE
NOTE #6 & #7
PROPERTY
LINE
CLT WATER
METER
PUBLIC
WATER
MAIN
ROAD R/W
RESTRAINED JOINT
SEE NOTE #3
ZONING
SETBACK
TYPICAL LOCATION REQUIREMENT
FOR ABOVE GROUND INSTALLATION
N.T.S.
5.3.2016
3.
REDUCED PRESSURE PRINCIPLE ASSEMBLY
VERSION DATE
FIRE LINE SERVICES SHALL HAVE OUTSIDE STEM AND YOKE (OS & Y)
HANDWHEEL OPERATORS OR BUTTERFLY VALVES, AND LISTED ON APPROVED LIST
AS FIRE APPROVED. IF SERVING FIRE SPRINKLERS, TAMPER SWITCHES ARE REQUIRED.
1.2
2.
2
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
REDUCED PRESSURE PRINCIPLE
1.
VERSION NO.
NOTES:
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS SPECIFICATION. ALL JOINTS SHALL BE RESTRAINED WITH
MEGALUG RESTRAINTS OR APPROVED EQUAL.
4.
SUPPORT OF ASSEMBLY SHALL BE DESIGNED BY OWNER, 8" - 12"
SHALL BE SUPPORTED AT EACH VALVE.
5.
INSULATED ENCLOSURE SHALL BE AS SPECIFIED IN CLT WATER ENCLOSURE
INFORMATION - HEATED INSULATED ENCLOSURE ARE REQUIRED FOR
FIRE LINE SERVICES. NO INSULATION SHALL BE WRAPPED AROUND BPA.
6.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL AND MUST BE
OUTSIDE OF ZONING SET-BACK DIRECTLY BEHIND METER.
7.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
8.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CHARLOTTE WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
9.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER BACKFLOW INSPECTOR.
SHUT-OFF VALVE #2
SEE NOTE #2
6" MIN.
CHECK VALVE #1
TEST COCK #1
COVER MUST NOT
OBSTRUCT VALVE
BEING FULLY
OPENED
CHECK VALVE #2
RESTRAINED JOINT
SEE NOTE #3
HINGED ACCESS OR
REMOVABLE INSULATED
ENCLOSURE MEETING ASSE
1060 SPECIFICATIONS.
ENCLOSURE TO INCLUDE
DRAIN PORT(S) PER CLT WATER
REQUIREMENT.
FLOW
LOWEST
POINT
DUCTILE IRON PIPE OR
TYPE K OR L COPPER
TUBING FOR MIN. OF 5'
ON EACH END OF ASSEMBLY.
SEE NOTE #3
12" MIN.
30" MAX.
SLOPE GROUND
AWAY FROM
COVER
SEE NOTE #4
SLEEVE REQUIRED
(TYP.)
SLEEVE REQUIRED
(TYP.)
SUPPORT, PAD AND
CONCRETE FOOTINGS AS
REQUIRED BY SYSTEM DESIGNER
RESTRAINED JOINT
SEE NOTE #3
ZONING
SETBACK
CLT WATER REQUIRED BPA
ABOVE GROUND
MIN. 4" THICK
CONCRETE PAD
REQUIRED
SEE
NOTE #6 & #7
PROPERTY
LINE
CLT WATER
METER
PUBLIC
WATER
MAIN
ROAD R/W
SHUT-OFF VALVE #1
SEE NOTE #2
TYPICAL LOCATION REQUIREMENT
FOR ABOVE GROUND INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
DOUBLE CHECK VALVE ASSEMBLY
VERSION DATE
3.
05.03.2016
FIRE LINE SERVICES SHALL HAVE OUTSIDE STEM AND YOKE (OS & Y)
HANDWHEEL OPERATORS OR BUTTERFLY VALVES, AND LISTED ON APPROVED LIST
AS FIRE APPROVED. IF SERVING FIRE SPRINKLERS, TAMPER SWITCHES ARE REQUIRED.
1.2
2.
4
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
DOUBLE CHECK VALVE ASSEMBLY (DC)
1.
VERSION NO.
NOTES:
STRAINER
RECOMMENDED
VAULT, DOORS OR COVERS AND SUPPORT OF ASSEMBLY SHALL
BE DESIGNED BY OWNER AND AS REQUIRED.
4.
DRAIN INLET MAY BE PROVIDED AS SHOWN OR AS FLOOR DRAIN.
5.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL.
6.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
7.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
8.
INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER
BACKFLOW INSPECTOR.
FLOW
4" MIN.
4" MIN.
SLEEVE REQUIRED
(TYP.)
12" MIN.
30" MAX.
SHUT-OFF
VALVE #1
CHECK
VALVE #2
MIN. 4" THICK
#67 WASHED STONE
OR VAULT BOTTOM
TYPE K OR L COPPER TUBING
PIPE, 1" MIN. GALVANIZED STEEL
PIPE OR SCH. 40 PVC PIPE WITH
SCH. 80 PVC FITTINGS.
SEE NOTE #2
SEE
NOTE #3
2" MIN. DIA. DRAIN BY GRAVITY TO
ATMOSPHERE AS REQUIRED BY
CLT WATER SPECIFICATIONS. SEE NOTE #4
SUPPORT AS REQUIRED
BY DESIGNER
ELEVATION VIEW
TEST COCK #1
8" MIN.
DOUBLE CHECK VALVE
ASSEMBLY
4" MIN.
SHUT-OFF
VALVE #2
FLOW
4" MIN.
SHUT-OFF
VALVE #1
8" MIN.
CHECK
VALVE #1
DRAIN
ZONING
SETBACK
2" MIN. DRAIN
TO ATMOSPHERE
PLAN VIEW
CLT WATER REQUIRED BPA
BELOW GROUND.
SEE NOTE #5 & #6
PROPERTY
LINE
CLT WATER
METER
PUBLIC
WATER
MAIN
TOP OF
DISCHARGING
STORM PIPE
STORM PIPE
DRAIN ALTERNATIVE:
TIE INTO CATCH BASIN OR STORMWATER MANHOLE PER DETAIL
SHOWN ABOVE. NO TIE IN TO STORMWATER PIPE WILL BE ACCEPTED.
TYPICAL LOCATION REQUIREMENT
FOR BELOW GROUND INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
DRAIN FROM
BACKFLOW VAULT
CATCH BASIN
WITH GRATE
ROAD R/W
SEE
NOTE #6
5.3.2016
3.
5
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
VERSION DATE
SLEEVE REQUIRED
(TYP.)
2.
1.1
DOUBLE CHECK VALVE
ASSEMBLY
CHECK
VALVE #1
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
VERSION NO.
15" MAX.
6" MIN.
1.
DOUBLE CHECK VALVE ASSEMBLY
(DC) 3/4" & 1" BELOW GROUND VAULT
TEST COCK #1
NOTES:
FINISHED GRADE TO BE
SLOPED AWAY FROM COVER
SHUT-OFF
VALVE #2
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
DOUBLE CHECK VALVE
ASSEMBLY
STRAINER
RECOMMENDED
15" MAX.
6" MIN.
SLEEVE REQUIRED
(TYP.)
3.
VAULT, DOORS OR COVERS AND SUPPORT OF ASSEMBLY SHALL
BE DESIGNED BY OWNER AND AS REQUIRED.
4.
DRAIN INLET MAY BE PROVIDED AS SHOWN OR AS FLOOR DRAIN.
FLOW
5.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL.
4" MIN.
4" MIN.
6.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
SHUT-OFF
VALVE #1
12" MIN.
30" MAX.
CHECK
VALVE #2
SEE
NOTE #3
7.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
8.
INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER
BACKFLOW INSPECTOR.
2" MIN. DIA. DRAIN BY GRAVITY TO
ATMOSPHERE AS REQUIRED BY
CLT WATER SPECIFICATIONS. SEE NOTE #4
SUPPORT AS
REQUIRED BY
DESIGNER
ELEVATION VIEW
TEST COCK #1
DOUBLE CHECK VALVE
ASSEMBLY
12" MIN.
SHUT-OFF
VALVE #2
4" MIN.
DRAIN
ZONING
SETBACK
FLOW
SHUT-OFF
VALVE #1
COVER
4" MIN.
12" MIN.
CHECK
VALVE #1
2" MIN. DRAIN
TO ATMOSPHERE
PLAN VIEW
DRAIN FROM
BACKFLOW VAULT
CLT WATER REQUIRED BPA
BELOW GROUND.
SEE NOTE #5 & #6
PROPERTY
LINE
CLT WATER
METER
PUBLIC
WATER
MAIN
ROAD R/W
SEE
NOTE #6
CATCH BASIN
WITH GRATE
TOP OF
DISCHARGING
STORM PIPE
STORM PIPE
DRAIN ALTERNATIVE:
TIE INTO CATCH BASIN OR STORMWATER MANHOLE PER DETAIL
SHOWN ABOVE. NO TIE IN TO STORMWATER PIPE WILL BE ACCEPTED.
TYPICAL LOCATION REQUIREMENT
FOR BELOW GROUND INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
SLEEVE REQUIRED
(TYP.)
TYPE K OR L COPPER TUBING
OR 1" MIN. GALVANIZED STEEL
PIPE FOR MIN. OF 5' ON
EACH END OF ASSEMBLY.
SEE NOTE #2
5.3.2016
TEST COCK #1
SHUT-OFF
VALVE #2
VERSION DATE
2.
CHECK
VALVE #1
1.1
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
6
1.
DOUBLE CHECK VALVE ASSEMBLY (DC)
1 1/ 2" & 2" BELOW GROUND VAULT
FINISHED GRADE TO BE
SLOPED AWAY FROM COVER
VERSION NO.
NOTES:
COVER
SEE NOTE #3
FIRE LINE SERVICES SHALL HAVE OUTSIDE STEM AND YOKE (OS & Y)
HANDWHEEL OPERATORS OR BUTTERFLY VALVES, AND LISTED ON APPROVED LIST
AS FIRE APPROVED. IF SERVING FIRE SPRINKLERS, TAMPER SWITCHES ARE REQUIRED.
3.
ASSEMBLIES SHALL BE INSTALLED UPRIGHT AND IN THE HORIZONTAL
POSITION.
4.
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
5.
VAULT AND SUPPORT OF ASSEMBLY SHALL BE DESIGNED BY OWNER,
8" - 12" SHALL BE SUPPORTED AT EACH VALVE.
6.
ACCESS DOORS SHALL BE AS SPECIFIED IN CLT WATER WATER DETAILS #23, 25,
OR 28 OR APPROVED EQUAL.
7.
DRAINAGE INLET MAY BE PROVIDED AS SHOWN OR AS FLOOR DRAIN.
8.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL.
9.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
CHECK VALVE #1
CHECK VALVE #2
SHUT-OFF VALVE #2
SEE NOTE #2
6" MIN.
SLEEVE REQUIRED
(TYP.)
FLOW
DUCTILE IRON PIPE OR
TYPE K OR L COPPER
TUBING FOR MIN. OF 5'
ON EACH END OF ASSEMBLY.
SEE NOTE #4
LOWEST POINT
SLEEVE REQUIRED
(TYP.)
12" MIN.
30" MAX.
TEST COCK #1
SEE
NOTE #5
SHUT-OFF VALVE #1
SEE NOTE #2
4" MIN. DIA. DRAIN BY GRAVITY TO
ATMOSPHERE AS REQUIRED BY
CLT WATER SPECIFICATIONS. SEE NOTE #7
ELEVATION VIEW
6" MIN.
CHECK
VALVE #1
FLOW
TEST COCK #1
CHECK
VALVE #2
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
11.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER
BACKFLOW INSPECTOR.
6" MIN.
6" MIN.
SHUT-OFF
VALVE #1
10.
SHUT-OFF
VALVE #2
24" MIN.
5.3.2016
6" MIN. WHEN VALVE IS FULLY OPEN
VERSION DATE
2.
DOUBLE CHECK VALVE ASSEMBLY
1.2
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
7
1.
DOUBLE CHECK VALVE ASSEMBLY (DC)
2 1/ 2" - 12" BELOW GROUND VAULT
FINISHED GRADE TO BE
SLOPED AWAY FROM COVER
VERSION NO.
NOTES:
4'x5', 5'x5' OR 4'x6'
DOUBLE LEAF STEEL OR ALUMINUM
DOORS HINGED AND LOCKABLE
SEE NOTE #6
DRAIN
ZONING
SETBACK
4" DIA. DRAIN TO
ATMOSPHERE
COVER
CLT WATER - REQUIRED
BPA BELOW GRND.
SEE NOTE #8 & #9
PROPERTY
LINE
PLAN VIEW
CATCH BASIN
WITH GRATE
TOP OF
DISCHARGING
STORM PIPE
PUBLIC
WATER
MAIN
STORM PIPE
DRAIN ALTERNATIVE:
TIE INTO PRIVATE CATCH BASIN OR PRIVATE STORMWATER MANHOLE PER
DETAIL SHOWN ABOVE. NO TIE IN TO STORMWATER PIPE OR PUBLIC CATCH
BASIN / MANHOLE WILL BE ACCEPTED.
TYPICAL LOCATION REQUIREMENT
FOR BELOW GROUND INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
DRAIN FROM
BACKFLOW VAULT
ROAD R/W
CLT WATER
METER
CHECK
VALVE #2
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
FLOW
LOWEST
POINT
OR RELIEF
VALVE
OUTLET
4"
MIN.
STRAINER
RECOMMENDED
SLEEVE PER NC
BLDG. CODE (TYP.)
RELIEF
VALVE
OUTLET
SEE NOTE #6
12" MIN.
60" MAX.
TYPE K OR L COPPER TUBING
OR 1" MIN. GALVANIZED STEEL
PIPE FOR MIN. OF 5' ON
EACH END OF ASSEMBLY.
SEE NOTE #4
3.
ASSEMBLIES SHALL BE INSTALLED UPRIGHT AND IN THE HORIZONTAL
POSITION.
4.
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
5.
SUPPORT FOR ASSEMBLY SHALL BE DESIGNED BY OWNER AS REQUIRED.
6.
AN AIR GAP DRAIN IS RECOMMENDED TO REDUCE SPLASHING OF MINOR
DISCHARGES FROM THE RELIEF VALVE DRAIN PORT.
FLOOR
7.
INDOOR INSTALLATION OF RP'S SHOULD PROVIDE FOR DRAINAGE
CAPABLE OF HANDLING IN EXCESS OF THE MAXIMUM DISCHARGE RATE
EXPECTED BY THE BACKFLOW ASSEMBLY MANUFACTURER.
8.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL.
9.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
SEE NOTE #5
DRAIN BY GRAVITY
SEE TABLE IN SPECIFICATIONS
FOR MINIMUM DRAIN SIZES FOR
RP INDOOR INSTALLATIONS.
SEE NOTE #7
ELEVATION VIEW
WALL
6" MIN.
10.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
11.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER
BACKFLOW INSPECTOR.
5.3.2016
2.
SHUT-OFF VALVE #2
CHECK
VALVE #1
VERSION DATE
OUTSIDE WALL
TEST COCK #1
1.1
INDOOR INSTALLATION SHALL ONLY BE PERMITTED IN CASES
WHERE ADEQUATE SPACE FOR THE BACKFLOW PREVENTION
ASSEMBLY IS NOT AVAILABLE OUTSIDE. CLT WATER WILL REVIEW
ON A CASE BY CASE BASIS.
8
1.
REDUCED PRESSURE
PRINCIPLE ASSEMBLY
REDUCED PRESSURE PRINCIPLE
ASSEMBLY (RP) 3/4" - 2" INDOOR
SHUT-OFF VALVE #1
VERSION NO.
NOTES:
REDUCED PRESSURE
PRINCIPLE ASSEMBLY
SHUT-OFF
VALVE #2
4" MIN.
CLT WATER
REQUIRED BPA
INSIDE
EXTERIOR
BUILDING WALL
SHUT-OFF
VALVE #1
CHECK
VALVE #1
24" MIN.
CLEAR SPACE
DRAIN
ZONING
SETBACK
PROPERTY
LINE
SEE NOTE #8 & #9
CLT WATER
METER
PUBLIC WATER
MAIN
PLAN VIEW
TYPICAL LOCATION REQUIREMENT
FOR INSIDE INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
TEST COCK #1
ROAD R/W
OUTSIDE WALL
FLOW
SLEEVE PER NC
BLDG. CODE (TYP.)
CHECK VALVE #1
SHUT-OFF VALVE #2
SEE NOTE #3
FIRE LINE INSTALLATIONS SHALL HAVE OUTSIDE STEM AND YOKE
(OS&Y) HANDWHEEL OPERATORS OR BUTTERFLY VALVES, AND LISTED ON
APPROVED LIST AS FIRE APPROVED. IF SERVING FIRE SPRINKLERS,
TAMPER SWITCHES ARE REQUIRED.
4.
ASSEMBLIES SHALL BE INSTALLED UPRIGHT AND IN THE HORIZONTAL
POSITION.
5.
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
6.
SUPPORT FOR ASSEMBLY SHALL BE DESIGNED BY OWNER, 8" - 12"
SHALL BE SUPPORTED AT EACH VALVE AND SHALL NOT BLOCK RELIEF
VALVE ON DRAIN PORT.
7.
AN AIR GAP DRAIN IS RECOMMENDED TO REDUCE SPLASHING OF MINOR
DISCHARGES FROM THE RELIEF VALVE DRAIN PORT.
8.
INDOOR INSTALLATION OF RP'S SHOULD PROVIDE FOR DRAINAGE
CAPABLE OF HANDLING IN EXCESS OF THE MAXIMUM DISCHARGE RATE
EXPECTED BY THE BACKFLOW ASSEMBLY MANUFACTURER.
9.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL.
6" MIN.
FLOW
6" MIN.
RELIEF VALVE
OUTLET
SEE NOTE #7
DRAIN
FLOOR
LOWEST POINT OR
RELIEF VALVE OUTLET
12" MIN.
60" MAX.
SEE NOTE #6
SEE TABLE IN SPECIFICATIONS
FOR MINIMUM DRAIN SIZES FOR
RP INDOOR INSTALLATIONS
SEE NOTE #8
ELEVATION VIEW
CHECK
VALVE #1
OUTSIDE WALL
11.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER BACKFLOW INSPECTOR.
6" MIN.
FLOW
SHUT-OFF
VALVE #1
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
12.
WALL
6" MIN.
10.
CHECK
VALVE #2
24" MIN.
CLEAR SPACE
DRAIN
REDUCED PRESSURE PRINCIPLE ASSEMBLY
TEST COCK #1
PLAN VIEW
SHUT-OFF
VALVE #2
CLT WATER
REQUIRED BPA
INSIDE
EXTERIOR
BUILDING WALL
ZONING
SETBACK
PROPERTY
LINE
SEE NOTE #9 & #10
CLT WATER
METER
ROAD R/W
SLEEVE PER NC
BLDG. CODE (TYP.)
DUCTILE IRON PIPE OR
TYPE K OR L COPPER
TUBING FOR MIN. OF 5'
ON EACH END OF ASSEMBLY.
SEE NOTE #5
5.3.2016
3.
CHECK VALVE #2
1.2
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
9
2.
PUBLIC WATER
MAIN
TYPICAL LOCATION REQUIREMENT
FOR INSIDE INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
OUTSIDE WALL
TEST COCK #1
6" CLEAR OF
OBSTRUCTIONS
WHEN VALVE IS FULLY OPEN
VERSION NO.
REDUCED PRESSURE PRINCIPLE ASSEMBLY
INDOOR INSTALLATION SHALL ONLY BE PERMITTED IN CASES WHERE
ADEQUATE SPACE FOR THE BACKFLOW PREVENTION ASSEMBLY IS NOT
AVAILABLE OUTSIDE. CLT WATER WILL REVIEW ON A CASE BY CASE BASIC.
REDUCED PRESSURE PRINCIPLE
ASSEMBLY (RP) 2 1/ 2" - 12" INDOOR
SHUT-OFF VALVE #1
SEE NOTE #3
1.
VERSION DATE
NOTES:
CHECK
VALVE #1
STRAINER
RECOMMENDED
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
LOWEST
POINT
STRAINER
RECOMMENDED
CHECK
VALVE #2
12" MIN.
60" MAX.
SEE NOTE #5
TYPE K OR L COPPER TUBING
OR 1" MIN. GALVANIZED STEEL
PIPE FOR MIN. OF 5' ON
EACH END OF ASSEMBLY.
SEE NOTE #4
5.
SUPPORT FOR ASSEMBLY SHALL BE DESIGNED BY OWNER AS REQUIRED.
6.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL.
7.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
8.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
9.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER
BACKFLOW INSPECTOR.
FLOOR
DRAIN RECOMMENDED
ELEVATION VIEW
WALL
6" MIN.
4" MIN.
DOUBLE CHECK VALVE
ASSEMBLY
SHUT-OFF
VALVE #2
FLOW
CLT WATER
REQUIRED BPA
INSIDE
EXTERIOR
BUILDING WALL
TEST COCK #1
24" MIN
CLEAR SPACE
CHECK
VALVE #1
ZONING
SETBACK
SEE NOTE #6 & #7
DRAIN RECOMMENDED
PROPERTY
LINE
PLAN VIEW
CLT WATER
METER
PUBLIC WATER
MAIN
TYPICAL LOCATION REQUIREMENT
FOR INSIDE INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
SHUT-OFF
VALVE #1
ROAD R/W
OUTSIDE WALL
VERSION DATE
4.
5.3.2016
ASSEMBLIES SHALL BE INSTALLED UPRIGHT AND IN THE HORIZONTAL
POSITION.
1.1
3.
10
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
VERSION NO.
2.
SHUT-OFF
VALVE #2
TEST COCK #1
FLOW
SLEEVE PER NC
BLDG. CODE (TYP.)
INDOOR INSTALLATION SHALL ONLY BE PERMITTED IN CASES
WHERE ADEQUATE SPACE FOR THE BACKFLOW PREVENTION
ASSEMBLY IS NOT AVAILABLE OUTSIDE. CLT WATER WILL REVIEW
ON A CASE BY CASE BASIS.
DOUBLE CHECK VALVE
ASSEMBLY
SHUT-OFF
VALVE #1
4"
MIN.
1.
DOUBLE CHECK VALVE
ASSEMBLY (DC)
-3/4" - 2" --INDOOR
OUTSIDE WALL
NOTES:
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
3.
FIRE LINE INSTALLATIONS SHALL HAVE OUTSIDE STEM AND YOKE
(OS&Y) HANDWHEEL OPERATORS OR BUTTERFLY VALVES, AND LISTED ON
APPROVED LIST AS FIRE APPROVED. IF SERVING FIRE SPRINKLERS,
TAMPER SWITCHES ARE REQUIRED.
4.
ASSEMBLIES SHALL BE INSTALLED UPRIGHT AND IN THE
HORIZONTAL POSITION.
5.
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
6.
SUPPORT FOR ASSEMBLY SHALL BE DESIGNED BY OWNER, 8" - 12"
SHALL BE SUPPORTED AT EACH VALVE.
7.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL.
8.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
9.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
SHUT-OFF VALVE #2
SEE NOTE #3
6" MIN.
FLOW
DUCTILE IRON PIPE OR
TYPE K OR L COPPER
TUBING FOR MIN. OF 5'
ON EACH END OF ASSEMBLY.
SEE NOTE #5
LOWEST POINT
12" MIN.
60" MAX.
FLOOR
FLOOR
DRAIN RECOMMENDED
SEE NOTE #6
SLEEVE PER NC
BLDG. CODE (TYP.)
TEST COCK #1
ELEVATION VIEW
3.
FIRE LINE INSTALLATIONS SHALL HAVE OUTSIDE STEM AND YOKE
(OS&Y) HANDWHEEL OPERATORS. IF SERVING FIRE SPRINKLERS,
TAMPER SWITCHES ARE REQUIRED.
10.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER BACKFLOW INSPECTOR.
WALL
6" MIN.
CHECK
VALVE #1
6" MIN.
CLT WATER
REQUIRED BPA
INSIDE
EXTERIOR
BUILDING WALL
SHUT-OFF
VALVE #1
CHECK
VALVE #2
24" MIN.
CLEAR SPACE
DRAIN RECOMMENDED
DOUBLE CHECK VALVE ASSEMBLY
TEST COCK #1
PLAN VIEW
SHUT-OFF
VALVE #2
ZONING
SETBACK
PROPERTY
LINE
SEE NOTE #7 & #8
CLT WATER
METER
ROAD R/W
OUTSIDE WALL
FLOW
PUBLIC WATER
MAIN
TYPICAL LOCATION REQUIREMENT
FOR INSIDE INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
6" MIN.
5.3.2016
OUTSIDE WALL
SLEEVE PER NC
BLDG. CODE (TYP.)
CHECK VALVE #1
VERSION DATE
2.
CHECK VALVE #2
1.2
INDOOR INSTALLATION SHALL ONLY BE PERMITTED IN CASES
WHERE ADEQUATE SPACE FOR THE BACKFLOW PREVENTION
ASSEMBLY IS NOT AVAILABLE OUTSIDE. CLT WATER WILL REVIEW
ON A CASE BY CASE BASIS.
11
1.
DOUBLE CHECK VALVE ASSEMBLY (DC)
2 1/ 2" - 12" INDOOR
6" CLEAR OF
OBSTRUCTIONS
WHEN VALVE IS FULLY OPEN
DOUBLE CHECK VALVE ASSEMBLY
SHUT-OFF VALVE #1
SEE NOTE #3
VERSION NO.
NOTES:
VERSION DATE
5.3.2016
VERSION NO.
1.1
12
TEST
COCK #2
#1 SHUT-OFF
VALVE
TEST
COCK #3
CHECK
VALVE #1
TEST
COCK #4
CHECK
VALVE #2
IF APPLICABLE
REDUCE PRESSURE
RELIEF VALVE & OUTLET
#2 SHUT-OFF
VALVE
A CITY OF CHARLOTTE DEPARTMENT
TEST
COCK #1
TEST COCK LOCATION
CMU APPROVED BACKFLOW PREVENTION (BPA) ASSEMBLY
SHUT-OFF VALVE #2
4.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL AND MUST BE
OUTSIDE OF ZONING SET-BACK DIRECTLY BEHIND METER.
5.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER-USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
6.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
7.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER BACKFLOW INSPECTOR.
CHECK VALVE #2
CHECK VALVE #1
STRAINER
RECOMMENDED
FLOW
TEST COCK #1
12" MIN.
30" MAX.
HINGED ACCESS OR
REMOVABLE INSULATED
ENCLOSURE MEETING ASSE
1060 SPECIFICATIONS.
ENCLOSURE TO INCLUDE
DRAIN PORT(S) PER CLT WATER
REQUIREMENTS.
LOWEST
POINT
OR RELIEF
VALVE
OUTLET
TYPE K OR L COPPER TUBING
PIPE. 1" MIN. GALVANIZED
STEEL PIPE OR SCH. 40 PVC
PIPE WITH SCH. 80 PVC FITTINGS.
SEE NOTE #2
SLOPE GROUND
AWAY FROM
COVER (TYP.)
CLT WATER REQUIRED BPA
ABOVE GROUND
ZONING
SETBACK
MIN. 4" THICK
#67 WASHED
STONE OR
CONCRETE PAD
SEE
NOTE #4 & #5
PROPERTY
LINE
IF USING PVC PIPE, HORIZONTAL
BRACING IS RECOMMENDED.
CLT WATER
METER
PUBLIC
WATER
MAIN
ROAD R/W
IF USING PVC PIPE VERTICAL BRACING
IS REQUIRED
5.3.2016
INSULATED ENCLOSURE SHALL BE AS SPECIFIED IN CLT WATER
ENCLOSURE INFORMATION - HEATED INSULATED ENCLOSURE IS
RECOMMENDED. NO INSULATION SHALL BE WRAPPED AROUND BPA.
VERSION DATE
3.
1.1
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS. IF USING PVC PIPE / FITTINGS,
VERTICAL SUPPORT IS REQUIRED AND HORIZONTAL BRACING IS
RECOMMENDED.
13
2.
TYPICAL LOCATION REQUIREMENT
FOR ABOVE GROUND INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
SHUT-OFF VALVE #1
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
REDUCED PRESSURE PRINCIPLE
ASSEMBLY (RP) 3/4" - 1" ABOVE GROUND
REDUCED PRESSURE
PRINCIPLE ASSEMBLY
1.
VERSION NO.
NOTES:
4.
ALL LOCATIONS FOR BPA'S REQUIRE CLT WATER APPROVAL AND MUST BE
OUTSIDE OF ZONING SET-BACK DIRECTLY BEHIND METER.
5.
THERE SHALL BE NO TAPS, PIPING BRANCHES, UNAPPROVED
BYPASS PIPING, HYDRANTS, FIRE DEPT. CONNECTION POINTS, OR
OTHER WATER - USING APPURTENANCES CONNECTED TO THE
SUPPLY LINE BETWEEN ANY WATER METER AND ITS
CLT WATER - REQUIRED BACKFLOW PREVENTER.
6.
EACH CLT WATER-REQUIRED BPA IS REQUIRED TO BE TESTED BY A
CLT WATER - APPROVED CERTIFIED TESTER PRIOR TO PLACING THE WATER
SYSTEM IN SERVICE. TEST RESULTS SHALL BE SUBMITTED TO CLT WATER
WITHIN 30 DAYS AND TESTED ANNUALLY THEREAFTER SUBMITTING
RESULTS TO CLT WATER.
7.
ALL INSTALLATIONS INTENDED FOR ADDRESSING CLT WATER
REQUIREMENTS, REQUIRE PRIOR APPROVAL
FROM THE APPROPRIATE CLT WATER BACKFLOW INSPECTOR.
CHECK VALVE #1
TEST COCK #1
CHECK VALVE #2
SHUT OFF
VALVE #2
HINGED ACCESS OR
REMOVABLE INSULATED
ENCLOSURE MEETING ASSE
1060 SPECIFICATIONS.
ENCLOSURE TO INCLUDE
DRAIN PORT(S) PER CLT WATER
REQUIREMENT.
FLOW
12" MIN.
30" MAX.
STRAINER
RECOMMENDED
TYPE K OR L COPPER TUBING
PIPE, 1" MIN. GALVANIZED STEEL
PIPE OR SCH. 40 PVC PIPE WITH
SCH. 80 PVC FITTINGS.
SEE NOTE #2
LOWEST
POINT
SLOPE GROUND
AWAY FROM
COVER (TYP.)
CLT WATER REQUIRED BPA
ABOVE GROUND
ZONING
SETBACK
SEE
NOTE #4 & #5
PROPERTY
LINE
CLT WATER
METER
IF USING PVC PIPE, HORIZONTAL
BRACING IS RECOMMENDED.
PUBLIC
WATER
MAIN
ROAD R/W
IF USING PVC PIPE,
VERTICAL BRACING
IS REQUIRED
4" MINIMUM
#67 WASHED
STONE OR
CONCRETE PAD
5.3.2016
INSULATED ENCLOSURE SHALL BE AS SPECIFIED IN CLT WATER
ENCLOSURE INFORMATION - HEATED INSULATED ENCLOSURE IS
RECOMMENDED. NO INSULATION SHALL BE WRAPPED AROUND BPA.
VERSION DATE
3.
1.1
PIPE MATERIAL AND FITTINGS SHALL BE AS SPECIFIED IN CLT WATER
STANDARDS & SPECIFICATIONS.
14
2.
TYPICAL LOCATION REQUIREMENT
FOR ABOVE GROUND INSTALLATION
N.T.S.
A CITY OF CHARLOTTE DEPARTMENT
DOUBLE CHECK VALVE
ASSEMBLY
BACKFLOW PREVENTION ASSEMBLIES (BPA's) SHALL CONFORM TO CLT WATER
SPECIFICATIONS. SHUT-OFF VALVES ARE SPECIFIC TO EACH APPROVED
BPA AND NO SUBSTITUTIONS OF SHUT-OFF VALVES ARE PERMITTED.
REFER TO CLT WATER APPROVED LIST OF BPA's.
DOUBLE CHECK VALVE ASSEMBLY
(DC) 3/4" & 1" ABOVE GROUND
SHUT OFF
VALVE #1
1.
VERSION NO.
NOTES: