HomeMy WebLinkAbout340.7SPLASH BLOCK
90' BEND WITH THRUST BLOCK
ISOLATION VALVE
FLOW —
TEE WITH THRUST BLOCK _/
SPLASI
THRUST RESTRAINT COLLAR
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WATER MAII
PRV STATION SEE DETAIL SHEET
2' MIN. I 'i
4' MIN
LIN—LINE ZONE VALVE
(NORMALLY CLOSED)
90' BEND WITH THRUST BLOCK
2' MIN, ISOLATION VALVE
STANDARD PRV STATION SITE PLAN
FLANGE FOR FUTURE
BY—PASS (MJxMJxFL)
— FLOW
TEE WITH THRUST BLOCK
)IHIIVIN JCC ULIHIL ZIMLLI
TRUST RESTRAINT COLLAR
PRV STATION SITE PLAN IN-LINE OPTION
GENERAL NOTES
1. The concrete vault shall be either a precast vault made by Utility Vault Co. or equal as
specified in the Standard Details, or shall be cast—in—place with 8" walls and slabs. All joints
shall be sealed so vault will remain watertight.
2. The vault cover shall be three 3' x 3' spring loaded hinged steel plate, lockable doors with
recessed lift handles, as made by Utility Vault Co. or approved equal.
3. Pipe supports shall be adjustable steel pipe support Stanchions bolted to floor of vault.
4. The vault shall contain one ladder constructed of galvanized steel. A detail plan of location
and construction shall be submitted to City prior to installation.
5. The exterior of the vault shall be sealed with two coats of ATCO Bitumastic No. 2221
6. The interior walls and ceiling of the vault shall be painted with two coats of Koppers
Ramuc Utility Enamel Flat, or approved equal. The floor shall not be painted.
7. The piping and equipment in the vault shall be given a complete field coat of Inertol Rust
Penetrating Primer No. 621 or approved equal. Two finish coats of Torex 800 Enamel, or
approved equal, shall be applied over the field coated primer.
8. The Standard PRV Station Site Plan shall be used for all new PRV station construction
except when limited right—of—way or existing buildings are restrictive. In such cases, and with
City approval, the in—line option may be used.
9. All isolation and zone valves outside the PRV station shall be provided with a valve box
when valves are 10" in size or smaller or a valve chamber when valves are 12" in size or
larger.
10. Pressure gauges shall be provided on both inlet and outlet pipes in the PRV vault.
Secondary gauges shall be mounted on the ceiling in easy view to be read from outside the
vault. Gauges shall read from 0-300 psi. Gauge installation shall include petcock between
pipe and gauge.
11. Joints on all valves and fittings outside the vault shall be mechanical joints unless
otherwise specified. Joints on valves and fittings inside vault shall be flanged or screwed as
specified. 12. Vault drain shall be piped to the nearest storm drain sewer or open drainage
ditch in lieu thereof. If no storm drain or drainage ditch is available, vault shall be
constructed with a sump on the outlet side of the vault. A sump pump shall be installed and
the discharge from the pump released onto a concrete pad outside the vault.
13. Cut 3" thick x 5" wide ethafoam 220 or equal to a length necessary to fit the size
of pipe installed and compressed into place. The contractor shall make sure the foam is
compacted tightly between pipe and vault wall with no voids. Lightly grout interior around pipe.
14. Pipe extending through vault shall be ductile iron, class 53, cement lined
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Y � STD. PLAN - 340.7
+ y . PUBLIC WORKS PRESSURE REDUCING STATION
DEPARTMENT IN -VAULT WITH IN-LINE VALVE
,�p I MARCH 2010