NOTES AND SPECIFICATIONS

GENERAL
1. MINIMUM REQUIREMENTS ARE INDICATED ON
THE DRAWING. THE CONSULTANT / DESIGNER
300x300x100mm DEEP
SUMP IN SCREED IS RESPONSIBLE AND LIABLE FOR FURTHER
WALL ADEQUATELY REINFORCED DETAILS AND TO ENSURE EFFECTIVE
HIGH PRESSURE LOW PRESSURE TO WITHSTAND THRUST FORCES OPERATION AND MAINTENANCE OF THE
ACCESS LADDER
(TO BE SPECIFIED BY ENGINEER) INSTALLATION.
2. THE SIGNATURE OR INITIALS ON THIS
DRAWING OF COE OFFICIAL DOES NOT
REMOVE ANY RESPONSIBILITY WHATSOEVER
FROM THE CONSULTANT / DESIGNER.
PUDDLE FLANGE IN CENTER
3. THE CONSULTANT / DESIGNER REMAINS
OF CONCRETE WALL
RESPONSIBLE TO ENSURE THAT ALL THE
STEEL STRAP FIXED TO CONCRETE GUIDELINES, STANDARD DRAWINGS,
500 PEDESTAL ANCHOR BOLTS STANDARDS AND SPECIFICATIONS OF THE

800 MIN
500 APPROVED SEALING WATER AND SANITATION DEPARTMENT HAVE
AROUND PIPES BEEN MET AND ARE COMPLIED WITH IN THE
ISOLATING RESTRAINED ISOLATING
TURBINE DESIGN.
VALVE FLANGE VALVE
STRAINER PRV ADAPTOR FLOW METER 4. ALL MATERIAL AND WORKMANSHIP MUST
FLOW DIRECTION
COMPLY WITH THE REQUIREMENTS OF THE
LATEST RELEVANT SANS STANDARD.
5. FINAL POSITION OF SERVICES TO BE
DETERMINED ON SITE.
6. ALL DIMENSIONS TO BE CHECKED AND
APPROVED ON SITE.
REMOVABLE 7. ALL DIMENSIONS ARE IN mm (UNLESS
PRESSURE GAUGE MIN 5D MIN 3D OTHERWISE SPECIFIED).
3 x 50mm Ø PVC-U SLEEVES 8. DO NOT SCALE FROM THESE DRAWINGS.
REMOVABLE 9. CLASS OF CONCRETE UNLESS OTHERWISE
FOR CATHODIC PROTECTION
PRESSURE SPECIFIED ON DRAWING DETAILS:
(FOR STEEL MAIN PIPES)
GAUGE REINFORCED CLASS 30/19
REMOVABLE THRUST BLOCKS CLASS 20/19
PRESSURE GAUGE BLINDING CLASS 15/19
FLOOR SCREED SAND : CEMENT = 3 : 1
ISOLATING STRAINER PRV RESTRAINED TURBINE ISOLATING 10. PRE-CAST CONCRETE RINGS AND COVER
VALVE FLANGE FLOW METER VALVE

800 MIN
SLABS TO COMPLY WITH SANS 1294.
ADAPTOR A 11. JOINTS BETWEEN CONCRETE RINGS AND
- BETWEEN COVER SLABS AND BETWEEN
RINGS AND FLOORS TO BE SEALED WITH
BITUMEN SEALANTAPPROVED
( BY THE
DESIGNER).
12. ALL JOINTS BETWEEN THE PIPE AND THE
CHAMBER WALL AND BETWEEN BRICK WALL
AND CONCRETE FLOOR TO BE SEALED TO
PREVENT WATER LEAKING INTO THE
CHAMBER. METHOD OF SEALING TO BE
SUBMITTED TO THE DESIGNER FOR
CONCRETE HIGH PRESSURE LOW PRESSURE APPROVAL.
PEDESTAL 13. FLANGE DRILLING TO BE IN ACCORDANCE
WITH SANS 1123. DESIGNER TO SPECIFY
FLANGE TABLE.
PLAN WITHOUT ROOF PANELS 14. ALL BOLTS, WASHERS AND NUTS TO BE HOT
DIPPED GALVANISED IN ACCORDANCE WITH
SCALE 1:25
SANS 763.
15. ALL STEEL PIPE ITEMS TO BE GRIT BLASTED
TO SA 3 OF ISO 8501-1 AND PAINTED WITH
EPOXY COMPLYING WITH SANS 1217 WITH A
MINIMUM DRY FILM THICKNESS OF 500
MICRON (LINING AND COATING).
UNDERGROUND STEEL PIPE ITEMS TO BE
TYPE 2A HEAVY DUTY CONCRETE WRAPPED WITH PETROLATUM TAPE
AIR VENT (APPROVED BY DESIGNER) OVER THE EPOXY
REPLACEMENT COVER PRE CAST REINFORCED CONCRETE PANELS.
NET WEIGHT OF PANELS NOT TO EXCEED 950kg. COATING.
16. CONCRETE SUPPORTS ARE REQUIRED
UNDERNEATH VALVES AND PIPE WORK
WHERE INDICATED BY THE DESIGNER.
17. DESIGNER TO SPECIFY STEP IRONS OR

150
N.G.L. N.G.L. LADDER INSIDE CHAMBER. STEP IRONS TO BE

200 MIN
HIGH PRESSURE LOW PRESSURE SALBERG AND BUILT-IN.
18. THERE MUST BE NO CONTACT BETWEEN
STEEL PIPE ITEMS AND CONCRETE OR BRICK
REINFORCEMENT.
AIR VALVE
BACKFILL IN 150mm LAYERS
REMOVABLE RSV VALVE EVENLY AROUND STRUCTURE
PRESSURE TO 95% MOD AASHTO DENSITY
PUDDLE FLANGE IN CENTER PARTICULAR:
OF CONCRETE WALL GAUGE
1. THIS DRAWING SHOWS THE TYPICAL LAYOUT OF
PRV RESTRAINED THE PIPING AND FITTINGS REQUIRED FOR A PRV
FLOW DIRECTION ISOLATING FLANGE TURBINE ISOLATING CHAMBER.
VALVE STRAINER ADAPTOR FLOW METER VALVE 2. EACH INDIVIDUAL CHAMBER SHALL BE
PROPERLY DESIGNED BY A COMPETENT
PERSON.
3. ALL VALVE TYPES AND FITTINGS MUST BE
APPROVED BY THE CONSULTANT / DESIGNER.
4. T-PIECE MAY REQUIRE REINFORCEMENT USING
WRAPPER PLATES TO INCREASE WALL
650 MIN

THICKNESS OR CROTCH PLATES TO

COMPENSATE FOR METAL LOSS. THE DESIGN
OF THE FITTING SHALL BE DONE IN
ACCORDANCE WITH AWWA M11.

CONCRETE PEDESTAL
SCREED 150mm TO 100mm WITH
FALL IN DIRECTION OF SUMP 50mm BLINDING
3x50mm Ø PVC -U SLEEVES FOR CATHODIC PROTECTION
(ONLY APPLICABLE IF APPROACHING PIPES ARE STEEL

SECTION A
SCALE 1:25 -

AMENDMENTS WATER AND SANITATION DESIGNED CONTRACT No. PROJECT TITLE

APPROVED ON BEHALF OF:
NR DATE APPROVED DESCRIPTION OPERATIONS DIVISION NAME:.........................................
STANDARD GUIDELINE DRAWINGS
NAME:............................................................. PROF REG No:.......................
SIGNATURE:............................... DATE:....................... PROJECT No.
DRAWN DRAWING TITLE
SIGNATURE:.................................................. DATE:.......................

PROJECTS DIVISION CONSULTANT DETAILS TO BE

NAME:......................................... SHEET No. STANDARD DRAWING: BULK WATER
NAME:............................................................. PROF REG No:.......................
PLACED HERE SIGNATURE:............................... DATE:....................... PRESSURE REDUCING VALVE (PRV) AND FLOW METER
SIGNATURE:.................................................. DATE:.......................
APPROVED PAPER SIZE INSTALLATION
NAME:......................................... PROF REG No:.......................
PLANNING DIVISION A1
SIGNATURE:............................... DATE:.......................
WATER AND SANITATION NAME:............................................................. PROF REG No:....................... SCALE CoE DRAWING NUMBER
CONSULTANT DRAWING NUMBER
DEPARTMENT SIGNATURE:.................................................. DATE:....................... REVISION
STD-BW-005 REVISION