B09_Amd8_-_Drawing_00-C_19_Dec2025_0008.pdf
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- Solicitation number
- 140P2025R0082
About this file
This is a technical drawing specification sheet for water system details at Death Valley National Park. The document presents comprehensive engineering specifications for a Pressure Relief Valve (PRV) Vault Detail system dated January 17, 2025, prepared by DJ&A with technical review by M. Whelehon.
The drawing specifies multiple water system components including 6-inch and 2-inch gate valves, Victaulic couplers, CLA-VAL pressure relief valves (Model 50-01), CLA-VAL combination air and vacuum valves (Model 33A), CLA-VAL duckbill check valves (Model RF-DBF), CLA-VAL strainers (Model X43H), CLA-VAL series 90 pressure reducing valves, and 8-inch by 6-inch reducers. The vault assembly includes a Shelterworks Clamshell enclosure or approved equal. Material specifications require fittings and pipe in ductile iron per ANSI/AWWA standards with ANSI Class 125 flanges per B16.1, with NSF-61 compliant interior coating and 2-part epoxy exterior coating. Pipe smaller than 3 inches must be 304 stainless steel meeting NSF61 standards. Fabricated steel pipe and fittings follow Schedule 40 specifications for sizes up to 10 inches and standard wall for 12 inches and larger. The vault includes 3/4-inch crushed gravel drainage one foot below the enclosure bottom and 24-gauge stainless steel mesh corrosion-resistant screening. Additional technical requirements are referenced in specification sections 33 14 00, 33 14 19, and 33 14 23. The overall vault dimensions measure approximately 23 feet 7 inches in length with varying depth sections.
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Text version
DATE:
DESIGNED:
TECH. REVIEW:
SUB SHEET NO.
PMIS/PKG NO.
DRAWING NO.
SHEET
OF
TITLE OF SHEET
WATER DETAILS 143
178069
173 513
DJ&A
DJ&A
M. WHELEHON
1.17.2025
DEATH VALLEY
NATIONAL PARK
318717 00-
C3.19
6" GATE VALVE
2" VICTAULIC
COUPLER
2" GATE VALVE
2" CLA-VAL MODEL 33A COMBINATION AIR
& VACUUM VALVE OR APPROVED EQUAL
PIPE SUPPORTS
TYP.
2" CLA-VAL MODEL
RF-DBF DUCKBILL
CHECK VALVE OR
APPROVED EQUAL
6" VICTAULIC
COUPLER
2" CLA-VAL MODEL
50-01 PRESSURE
RELIEF VALVE
2" VICTAULIC
COUPLER
2" GATE VALVE
2" VICTAULIC
COUPLER
2" CLA-VAL SERIES 90
PRESSURE REDUCING VALVE
OR APPROVED EQUAL
2" CLA-VAL MODEL
X43H STRAINER OR
APPROVED EQUAL
6" CLA-CAL MODEL X43H STRAINER
OR APPROVED EQUAL
6" CLA-VAL SERIES 90 PRESSURE
REDUCING VALVE OR APPROVED EQUAL
2" CLA-VAL MODEL
RF-DBF DUCKBILL
CHECK VALVE OR
APPROVED EQUAL
6" GATE VALVE
2" CLA-VAL MODEL 33A
COMBINATION AIR &
VACUUM VALVE OR
APPROVED EQUAL
6" VICTAULIC
COUPLER
6" CLA-VAL MODEL X43H STRAINER
OR APPROVED EQUAL
6" CLA-VAL SERIES 90 PRESSURE
REDUCING VALVE OR APPROVED EQUAL
6" GATE VALVE
NOTES:
1. FITTINGS ARE DUCTILE IRON IN ACCORDANCE WITH ANSI/AWWA
C110/A21.10. FLANGES ARE ANSI CLASS 125, B16.1.
2. 3" PIPE AND LARGER ARE DUCTILE IRON IN ACCORDANCE WITH
ANSI/AWWA C115/A21.15. FLANGES ARE ANSI CLASS 125, B16.1.
3. DUCTILE IRON PIPE & FITTINGS INTERIOR COATING MEETS THE
REQUIREMENT OF NSF-61 STANDARD. EXTERIOR COATING TO BE
A 2-PART EPOXY.
4. 2" PIPE AND SMALLER PIPE TO BE 304SS MEETING NSF61
STANDARDS.
5. FABRICATED STEEL PIPE AND FITTINGS ARE SCHEDULE 40 FOR
SIZES UP TO 10" AND STANDARD WALL FOR 12" AND LARGER.
6. SEE SPECIFICATION SECTIONS 33 14 00, 33 14 19, AND 33 14 23
FOR ADDITIONAL INFORMATION
2" CLA-VAL MODEL
50-01 PRESSURE
RELIEF VALVE
2" GATE VALVE
SHELTERWORKS
CLAMSHELL ASSEMBLY
OR APPROVED EQUAL
NTS
A
C3.19
PRV VAULT DETAIL
3/4" CRUSHED GRAVEL
1-FOOT BELOW BOTTOM
OF ENCLOSURE TO
ALLOW FOR DRAINAGE
23' - 78"
2'
1"
10' - 1"
5'
3"
8" X 6" REDUCER
8" X 6" REDUCER
8" X 6" REDUCER
8" X 6" REDUCER
24 SS MESH
CORROSION-RESISTANT
SCREEN
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