HomeMy WebLinkAbout350.1ELEVATION
PLAN
H
A
I
IF
A
G
24"
MIN
6" MIN 6" MIN
12"
MIN B
G
F
C
C
D
D
E
E
12"
MIN
J
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
STD. PLAN - 350.1 Sht. 1 of 23" TO 10" DCVA
VAULT INSTALLATION
DOMESTIC AND IRRIGATION SERVICES 6/28/2023
MATERIALS
NOTES:
1.THE DCVA MUST BE LISTED ON THE LATEST VERSION OF "BACKFLOW ASSEMBLIES APPROVED FOR INSTALLATION IN WASHINGTON STATE",
PUBLISHED BY THE STATE OF WASHINGTON DEPARTMENT OF HEALTH.
2.THE DCVA MUST BE TESTED BY A WASHINGTON STATE CERTIFIED BACKFLOW ASSEMBLY TESTER UPON INSTALLATION AND ANNUALLY
THEREAFTER. ASSEMBLY TO BE MAINTAINED BY PROPERTY OWNER. A COPY OF THE TEST REPORT SHALL BE SENT TO THE CITY OF RENTON
WATER UTILITY CROSS CONNECTION CONTROL SPECIALIST, FAX 425-430-7207, EMAIL BACKFLOW@RENTONWA.GOV.
3.VAULTS SHALL NOT BE INSTALLED IN AREAS WITH VEHICLE TRAFFIC.
4.VAULT AND HATCH MODELS ARE PROVIDED AS REFERENCE. SHOP DRAWINGS SHALL BE SUBMITTED TO THE CITY FOR APPROVAL.
5.TEE AND GATE VALVE REQUIRED ON MAIN.
6.PROVIDE MINIMUM 2' OF LEVEL, UNOBSTRUCTED AREA AROUND HATCHES.
7.EACH VALVE SHALL BE MARKED WITH MODEL NUMBER WITH DESIGNATION OF RESILIENT SEAT: SUCH AS "RS" OR "R", WHICH MUST BE
CAST, MOLDED, OR AFFIXED ONTO THE BODY OR BONNET OF THE VALVE. ALL FERROUS BODIED VALVES SHALL BE COATED WITH A
MINIMUM OF 4 MILS OF EPOXY OR EQUIVALENT POLYMERIZED COATING.
A
VAULT MODEL NUMBERS
DCVA SIZE VAULT BASE PIECE CENTER PIECE TOP PIECE ACCESS HATCH
3"644-LA NO. 644-B N/A NO. 64-352P HHD-1C
4"575-LA NO. 575-BL N/A NO. 57-2-33F HHD-1C
6"577-LA NO. 588-BL N/A NO. 57-2-33F HHD-1C
8"4484-LA NO. 4484-BL NO. 4484-ML NO. 4484-TL-2-332P HHD-2D
10"5106-LA NO. 5106-BL NO. 5106-ML NO. 5106-TL3-332 HHD-2D
DOUBLE CHECK
VALVE ASSEMBLY
LINE-SIZED WASHINGTON STATE-APPROVED DCVA WITH TWO (2) RESILIENT-SEATED SHUT-OFF VALVES AND
FOUR (4) RESILIENT-SEATED TEST COCKS, DCVA SHALL BE INSTALLED EQUIDISTANT FROM THE ENDS OF THE
CONCRETE VAULT, TWO (2) VALVE SUPERVISORY SWITCHES (ONE PER VALVE) PER RRFA REQUIREMENTS
PIPE SUPPORT ADJUSTABLE PIPE SADDLE SUPPORT, GRINNELL FIG 264 OR EQUAL, WITH BASE, BOLTED TO FLOOR
ADAPTER RESTRAINED FLANGE ADAPTER, EBAA IRON SERIES 2100 MEGAFLANGE OR EQUAL
WATER MAIN CLASS 53 DI PIPE (PExFL) WITH RESTRAINED JOINTS
WALL FLANGE MIDSPAN PIPE RESTRAINT WITH CONCRETE BLOCKING PER STD PLAN 370.4, SEAL PIPE PENETRATIONS WITH
WATER-TIGHT GROUT
CONCRETE VAULT OLDCASTLE PRECAST VAULT, MODEL NUMBERS PER TABLE ABOVE, OR EQUAL
DRAIN MINIMUM 6" PVC FLOOR DRAIN, SLOPE TO STORM DRAIN OR DAYLIGHT TO DRAINAGE DITCH WITH WIRE
MESH RODENT SCREEN AT DRAIN OUTLET, SEAL PIPE PENETRATION WITH WATER-TIGHT GROUT
ACCESS HATCH TWO LOCKING HINGED ALUMINUM DOORS, TRAFFIC-RATED, WITH SLIP-RESISTANT TREATMENT, MARKED
"WATER", LW PRODUCTS MODEL NUMBERS PER TABLE BELOW, OR EQUAL
LADDER GALVANIZED STEEL LADDER SECURED TO VAULT PER STD PLAN 370.5
GRAVEL FOUNDATION GRAVEL PER WSDOT STANDARD SPECIFICATIONS, 12" MINIMUM ALL DIRECTIONS
B
C
D
E
F
G
I
H
J
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
3" TO 10" DCVA
VAULT INSTALLATION
DOMESTIC AND IRRIGATION SERVICES
STD. PLAN - 350.1 Sht. 2 of 2
6/28/2023