HomeMy WebLinkAbout370.3NOTES:
1.WHERE PIV IS LOCATED INSIDE THE VAULT, THE VAULT LID SHALL BE CORE DRILLED WITH LINK SEAL OR GROUT TO SEAL THE PIPE
PENETRATION. ALTERNATIVE PIV LOCATION SHALL BE APPROVED BY THE FIRE MARSHAL.
2.MINIMUM CLEARANCE OF 6" SHALL BE MAINTAINED BETWEEN VALVES, FITTINGS, AND VAULT WALL.
3.ALL PIPE JOINTS SHALL BE RESTRAINED AND CONCRETE BLOCKING IS REQUIRED AT CHANGES IN DIRECTION.
4.CORE DRILL (O.D. +2") CONCRETE VAULT IF KNOCK-OUTS ARE NOT PROVIDED.
12"
MINPROPERTY LINE12"
MIN24"
MIN
6"
MIN
12"
MIN
6"
MIN
O
O
A
B
F
C
DB
G
E
H
K
I
OR
B
B
F
MATERIALS
A BACKFLOW ASSEMBLY DCDA PER STD PLAN 350.3, POSITIONED WITHIN ACCESS HATCH TO ALLOW FOR VERTICAL REMOVAL
PIPE CLASS 53 DI PIPE (PExFL OR FLxFL)
POST INDICATOR VALVE PIV BETWEEN LAST VALVE ON BACKFLOW ASSEMBLY AND FDC, IN ONE OF TWO POSITIONS SHOWN
TEE TEE (FLxFL)
ADAPTER ADAPTER (FLxMJ)
BEND 90° BEND (FLxFL)
VALVE CHECK VALVE (FLxFL)
FIRE DEPARTMENT
CONNECTION
FDC PER RRFA REQUIREMENTS, LOCATED DOWNSTREAM OF BACKFLOW ASSEMBLY, INSTALLED ON THE SIDE
OF THE VAULT WITH THE LARGEST AVAILABLE SPACE AS SHOWN
CONCRETE VAULT OLDCASTLE PRECAST VAULT OR EQUAL, SIZED TO ACCOMMODATE FDC, PIV, AND CHECK VALVE INSIDE THE
VAULT AND MAINTAIN REQUIRED MINIMUM CLEARANCES
ACCESS HATCH TWO LOCKING HINGED ALUMINUM DOORS, TRAFFIC-RATED, WITH SLIP RESISTANT TREATMENT, MARKED
"WATER", LW PRODUCTS OR EQUAL
LADDER GALVANIZED STEEL LADDER SECURED TO VAULT PER STD PLAN 370.5
WALL FLANGE MIDSPAN PIPE RESTRAINT WITH CONCRETE BLOCKING PER STD PLAN 370.4, SEAL PIPE PENETRATIONS WITH
WATER-TIGHT GROUT
PIPE PENETRATION SEAL PIPE PENETRATION WITH WATER-TIGHT GROUT
DRAIN FLOOR DRAIN, MINIMUM 6" PVC, SLOPED TO STORM SEWER OR DAYLIGHT TO DRAINAGE DITCH WITH WIRE
MESH RODENT SCREEN AT DRAIN OUTLET, SEAL PIPE PENETRATION WITH WATER-TIGHT GROUT
BLOCKING CONCRETE BLOCKING PER STD PLAN 330.1
B
C
D
E
F
G
H
I
J
K
N
6" MIN
L
M
N
J
L
M
O
M
L
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
FDC AND CHECK VALVE
ROUTED THROUGH
BACKFLOW ASSEMBLY VAULT
STD. PLAN - 370.3
6/28/2023