Attachment 2_Valve Assembly Detail.pdf
PDF 296 KB Posted
- Solicitation number
- 36C78625B0044_1
About this file
This document is a detailed technical drawing (Attachment 2) for a valve assembly installation for an irrigation system at Miramar National Cemetery. The schematic provides a comprehensive cross-sectional view of a valve assembly installation, detailing specific components and installation requirements. Key components include a 30-inch HDPE mainline, service saddle, PVC piping (Schedule 80 and 40), brass ball valve, automatic control valve, valve box, and associated electrical infrastructure like a one-station decoder, solenoid control wire, and two-wire cable.
The drawing includes eight specific installation notes covering critical technical details such as pipe burial depth (18-inch lateral pipe), valve box positioning (3/4-inch above landscape grade), wire mesh and filter fabric placement, conduit requirements for two-wire systems, and subgrade preparation. The technical specification demonstrates precise engineering standards for irrigation valve assembly installation, with careful attention to underground infrastructure, materials, positioning, and electrical connectivity. The drawing is part of a broader project to split irrigation zones at the Miramar National Cemetery, managed by the Department of Veterans Affairs National Cemetery Administration.
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Other files
| File | Type | Posted |
|---|---|---|
| 36C78625B0044 IFB Miramar Irrigation zones.docx | DOCX document | |
| Attachment 1_Irrigation Map.pdf | ||
| Attachment 3_PVC to HDPE Lateral Connection Detail.pdf | ||
| SOW.docx | DOCX document | |
| Wage Determination.pdf | ||
| Specification SECTION 32 84 00 PLANTING IRRIGATION.docx | DOCX document |
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Text version
M
FINISH GRADE
S
SOD
U
4" COMPACTED AGGREGATE BASE
6"
T
4"
A
B
C
D
I I
H L
HI
E F
1'
K
2'-6"
3" MINIMUM GRAVEL SUMP
± 3/4"
J
G
SUBGRADE
A1
P
Q
A HDPE MAINLINE 30-INCH BURY
B HDPE SERVICE SADDLE w/1.5-INCH BUTT OUTLET
C HDPE SOCKET FUSION TO BRASS FPT COUPLING
D SCHEDULE 80 PVC TOE NIPPLE 1.5-INCH X 10-INCH
E SCHEDULE 80 PVC 90 DEGREE SLIP ELBOW
F SCHEDULE 80 PVC TOE NIPPLE 1.5-INCH X 14-INCH
G BRASS BALL VALVE
H SCHEDULE 80 PVC THREADED UNION
I SCHEDULE 80 PVC NIPPLE 1.5-INCH X 3-INCH
J AUTOMATIC CONTROL VALVE 150-PESB SERIES
K SCHEDULE 40 PVC MALE ADAPTER
L CLASS 200 PVC LATERAL 18-INCH BURY
M FIBRELYTE VALVE BOX FL30-18
N VALVE ID TAG
O SOLENOID CONTROL WIRE
P ONE-STATION DECODER
Q WATERPROOF WIRE CONNECTORS
R TWO-WIRE CABLE WITH COIL
S PVC CONDUIT FOR TWO-WIRE CABLE (TWO
REQUIRED)
T PVC CONDUIT SWEEP ELL (TWO REQUIRED)
U WIRE MESH & FILTER FABRIC
NOTES:
1. USE TWO 45 DEGREE SLIP ELBOWS TO LOWER THE
LATERAL PIPE TO 18-INCH BURY
2. PLACE 1/2-INCH WIRE MESH & FILTER FABRIC
UNDERNEATH VALVE BOX AND ON TOP OF
AGGREGATE BASE
3. INSTALL VALVE BOX ± 3/4-INCH ABOVE LANDSCAPE
GRADE WHEN INSTALLING SOD
4. ATTACH ID TAG WITH STATION NUMBER TO
SOLENOID CONTROL WIRE
5. INSTALL TWO PVC CONDUITS FOR TWO-WIRE; ONE
FOR WIRE IN AND ONE FOR WIRE OUT
6. APPLY EXPANDABLE FOAM AT PIPE OPENING
7. REMOVE MATERIAL TO PROVIDE 6-INCHES OF
CLEARANCE AROUND THE ENCLOSURE AND 4-INCHES
IN ADDITIONAL DEPTH ALLOWING FOR BEDDING
8. COMPACT SUBGRADE BEFORE INSTALLING
AGGREGATE BASE
OR
N
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