INDEX

PG1. SEWER RETICULATION1.1 MANHOLE AND COMPONENTS................................................................................................................ ..................................................................... 41.2 MANHOLE COVERS & FRAMES....................................................................................................................................................................................... 51.3 PRECAST BASES................................................................................................................................................................................. .................................. 61.4 ENLARGER SLABS........................................................................................................................................... ..................................................................... 7

2. CONCRETE PIPES AND CULVERTS2.1 PIPE SPECIFICATIONS OG JOINT PIPES................................................................................................... .....................................................................92.2 PIPE SPECIFICATIONS SPIGOT & SOCKET JOINT PIPES.................................................................... ..................................................................... 102.3 RP CULVERTS................................................................................................................................................. ..................................................................... 112.4 SATS CULVERTS .................................................................................................................................................................................................................. 122.5 RP CULVERTS AND SATS CULVERTS ....................................................................................................................................... .................................. 13

3. ROADS AND STORMWATER3.1 KERB INLETS (GENERAL REQUIREMENTS) TYPE 1 AND TYPE 2 ....................................................................................... ..................................153.2 KERB INLET DRAINS TYPE 3............................................................................................................................................................................................ 163.3 KERB INLET DRAINS TYPE 5 AND TYPE 5P............................................................................................ .....................................................................173.4 SLOTTED DRAINS.......................................................................................................................................... .....................................................................183.5 CHANNELS............................................................................................................................................................................................................................193.6 CHANNELS TYPE 4 GRID INLETS.............................................................................................................. .....................................................................20

4. WATER RETICULATION4.1 FIRE HYDRANT POST & BOX........................................................................................................................................................................................... 224.2 VALVE METER BOX, RODDING EYE BOX................................................................................................. ....................................................................234.3 MARKER AND GUIDE BLOCKS........................................................................................................................................................................................ 24

5. ELECTRICAL5.1 MINI SUB-STATION PLINTH............................................................................................................................................................................................. 265.2 PLINTH SPECIFICATION................................................................................................................................................................. ...................................27

| 2 |

* Weights are approximate and may vary from product

1. SEWER RETICULATION

| 3 |

SECTION 1SEWER RETICULATIONMANHOLES AND COMPONENTS

General DescriptionSewer Manholes are required to provide a safe means of access tothe pipe line for men and equipment, for maintenance and inspection purposes as per SANS 1294:2012.

Special Note a) DIMENSIONS-These DO NOT INCLUDE for a SACRIFICIAL LAYER as they are considered adequate for all normal users. b) AGGREGATE-“Salberg” products are made exclusively of DOLOMITIC AGGREGATE

Physical PropertiesChamber and shaft heights – 1000, 500 and 250mm“C” / Ekangala Slabs also available with metal insert for heavyduty applications

Concrete Lid & Frameor: Type 4 C.I. Lid& Frame. Use RoundSpacer & RoundAdaptor Slab ORType 2A C.I. Lid& Frame.use Square Spacer &Square Adaptor Slab

Access Shaft

ReducerSlab

ManholeSteps

Chambersection

PrecastBase

Hep Sleeveor otherapprovedrubber ringjoint

StarterRing

Castin-situor 6 way base

| 4 |

Diameter Nominal Outside Wall Mass (KG)(ID) Length Diameter Thickness

1000 860 55 375500 860 55 188250 860 55 94

1000 1130 65 594500 1130 65 297250 1130 65 149

1000 1400 75 808500 1400 75 404250 1400 75 202

1000 1670 85 1100500 1670 85 550250 1670 85 275

1000 1940 95 1436500 1940 95 718250 1940 95 359

1000 2250 125 2211500 2250 125 1106250 2250 125 530

1000 2800 150 3309500 2800 150 1539250 2800 150 770

1750

2000

2500

SHAFT/CHAMBER

750

1000

1250

1500

General Details

MANHOLE COMPONENTS

COVER SLABS

COMPONENT NORMALDIAMETER mm

WALL/SLAB THICKNESS mm

MASS kgPER METER

COMPONENT NORMALDIAMETER mm

WALL/SLAB THICKNESS mm

MASS kgPER METER

Cover Slab 1000 x 560 hole 150 260

Cover Slab 1000 x 560 "C" hole 150 260

Cover Slab 1250 x 560 hole 150 469

Cover Slab 1250 x 560 "C" hole 150 442

Cover Slab 1500 x 560 hole 175 799

Cover Slab 1500 x 560 "C" hole 175 790

Cover Slab 1750 x 560 hole 175 1080

Round Adaptor 860 x 560 hole 125 97

Cover Slab 2000 x 560 hole 200 1977

Square Spacer 900 SQ x 560 hole 75 109

Cover Slab 2000 x 560 "C" hole 200 1977

Round Spacer 860 x 560 hole 75 66

Cover Slab 2500 x 560 hole 200 3133

Reducer Slab 1000 x 750 hole 150 184

Cover Slab 2500 x 560 "C" hole 200 3077

Reducer Slab 1250 x 750 hole 150 382

Reducer Slab 1500 x 750 hole 175 700

Reducer Slab 1750 x 750 hole 175 990

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SECTION 1SEWER RETICULATIONMANHOLE COVERS & FRAMESCast Iron manhole covers in certain areas are being stolen at an alarming rate. This is causing a lot of worry among the public authori-ties concerned, because not only does the open manhole become a menace to life and limb, but it is costing a fortune to replace them. This can be overcome to some extent by the use of the locking bars but these add greatly to an already expensive product and are clumsy to maintain because the keys are always getting lost or the lock jammed.The precast concrete cover on the other hand, is not as expensive and it has little to no resale value and is therefore proving to be a more economic solution to this particular problem.

Two types of concrete cover and frame are manufactured. These are:

CONCRETE LIDThis is a conventional concrete Lid,adequate for most situations. They may be either: a) “Medium Duty” for use in midblock sewers

and out of the way pipelines, or b) “Heavy Duty” for use on sidewalks

The Lids have steel lip rings to protect the concrete from spalling under the continuous impact of tr a ffic. The use of a simple steel “lifting hook” is recommended for opening the cover instead of picks which will damage the edges.

TYPE BThis is referred to as a “Replacement Cover” since it’s main function is to replace cast iron covers that has been stolen. These are designed to �t the existing cast iron frame and carry the same load as required in terms of SANS 558/1973.

CONCRETE FRAME

650mm dia

MEDIUM DUTY & HEAVY DUTY LID

820mm dia

630mm dia

560mm dia

CONCRETE FRAME630mm dia

125mm100mm

560mm dia

820mm dia

ROUND REPLACEMENT COVER(TO SUITE TYPE 4 AND 2A - C.I. FRAME)

625mm dia

520mm dia

CONCRETE FRAME (TO SUITE TYPE 4 AND 2A REPLACEMENT COVER)

634mm dia

Concrete frame Cast iron frame

560mm dia

808mm

125m

m

100m

m

CONCRETE FRAME WITH TYPE 4 CIFRAME CAST IN(TO SUITE TYPE 4 AND TYPE SA COVERS)

634mm dia

Concrete frame Cast iron frameCast iron

frame

560mm dia

808mm

125m

m

100m

m

SQUARE OR RECTANGULAR REPLACEMENT COVER(To suit Type 9 & 9D - CI Frame)

600mm 400mm

| 6 |

SECTION 1SEWER RETICULATIONPRECAST BASES

Precast Base Unit The prefabricated base unit provides the foundation, channelling, benching and starter ring all in one complete unit.It also includes a rubber ring coupling at each outlet. There are many advantages in using a prefabricated base:

a) Structural – High strength, factory made concrete for the foundation where loads often exceed 200 KN.b) Chemical – Only “Dolomitic Aggregate” is used, thus ensuring a prolonged life against the aggressive

environment in the manhole.c) Water Tightness – The factory made concrete guarantees water tightness and provides a �exible joint at

the point where the pipes are subjected to the greatest movement. Less joints to leak.d) Time – No standing around waiting for the concrete to cure- No battling to pour good concrete in the

mud and - No waiting for the next cert i�cation because the manholes are not complete. Layapproximately 4 per hour.

e) E ffort- Construction is simple, There is constant height from “Level of invert” at centre of manhole tounderside of foundation – so excavate to this level. The required fall is already built into the slope of the channel – drop the base unit into position and start laying pipe.

f ) Adaptability – Joints available for P.V.C Pipes.g) Hydraulics – The built-in gradient on each junction allows for the head loss that occurs in each case.

DIMENSIONS PRECAST BASE SIZE

Angle Straight, 90 ˚ & 45 ˚

Diameter D 1000mm

Height H 450mm

Chanel Ø 160mm

Height h 100mm

D

H

h

Invert

D

Invert

h

H

INVERT LEVELS

+ 50mm

A A

B

B

+ 75mm

+ 00mm

| 7 |

SECTION 1SEWER RETICULATIONENLARGER SLABS

Enlarger Slab The “Enlarger Slab” was developed for three reasons:a) It doubles the use of the existing prefabricated base thus providing considerable saving in cost.b) In a normal 1000mm diameter base it is not good practice to have more than two junctions as it leaves very little

room for a man to stand. This is no problem when using an enlarger slab as there is a working platform all the wayround. This means that it is now possible to have all the junctions in one manhole, giving a further saving in cost.

c) The mass of a 1250mm diameter base would be very d ifficult to handle.

Construction The Enlarger Slab is bonded to the base by any appropriate epoxy thus providing an indestructible and watertight joint between the two components.

Base Ø Chamber Ø Channel Thickness

d D Ø h

1000 1250 160 175

1250mm 75mm75mm

30mm 30mm

30mm 30mm

1000mm

125mm

75mm 75mm

125mm

1. SEWER RETICULATION2. CONCRETE PIPES AND CULVERTS

| 8 |

| 9 |

SECTION 2CONCRETE PIPESOG JOINT PIPE

OG Joint Pipes or Interlocking Joint Pipescan only be used for Stormwater drainage.They are a non-water tight pipe and aredesigned with the male and female jointsinside the wall of the pipe i.e. there is no widening of the pipe therefore the external dimensions of the pipe are constant.

I.D.

L

S

O.D

.

t

NOMINAL NOMINAL INSIDE OUTSIDE WALL SOCKET MASS MASS PROOFDIAMETER LENGTH DIAMETER DIAMETER THICKNESS DEPTH KG/PIPE KG/M LOAD

D mm L mm ID mm OD mm t mm S mm KN/M

50D

300 2500 300 370 35 12 232 93 23375 2500 375 455 40 14 313 125 28450 2500 450 530 40 16 415 166 23525 2500 525 615 45 18 535 214 26600 2500 600 700 50 20 685 274 30675 2500 675 797 60 25 780 312 34750 2500 750 870 60 24 1020 408 38825 2500900 2500 900 1056 78 29 1620 648 45

1050 2500 986 1194 110 30 2300 920 52.51200 2500 1127 1359 120 30 2638 1055 60

75D

300 2500 300 370 35 12 232 93 23375 2500 375 455 40 14 313 125 28450 2500 450 540 45 16 457 183 34525 2500 525 625 50 18 599 240 39600 2500 600 720 60 20 818 327 45675 2500 675 807 66 25 1060 424 50750 2500 750 900 75 24 1315 526 56825 2500900 2500 900 1080 90 29 1810 724 68

1050 2500 1000 1190 110 30 2300 920 791200 2500 1130 1360 120 30 2638 1055 90

100D

300 2500 300 370 35 12 232 93 30375 2500 375 455 40 14 313 125 38450 2500 450 540 45 16 457 183 45525 2500 525 625 50 18 599 240 53600 2500 600 720 60 20 818 327 60675 2500 675 821 73 23 1060 424 67750 2500 750 900 75 24 1315 526 75825 2500 825 960 65900 2500 900 1080 90 29 1810 724 90

1050 1000 1190 110 30 2300 920 1051200 1130 1360 120 30 2638 1055 120

825 960 65 30 1286 514 41

825 960 65 30 1286 524 62

30 1286 524 83

OG CLASS 50 D - SANS 677 TYPE SC

OG CLASS 75 D - SANS 677 TYPE SC

OG CLASS 100 D - SANS 677 TYPE SC

SANS 677

25002500

| 10 |

SECTION 2CONCRETE PIPESSPIGOT AND SOCKET JOINT PIPE

Spigot and Socket Pipe Manufactured according to SANS 676 and SANS 677speci�cation.

NOMINAL DIAMETER

INSIDEDIAMETER

OUTSIDE DIAMETER

WALLTHICKNESS

SOCKETDIAMETER

SOCKETLENGTH

SOCKETDEPTH

MASSPROOFLOAD

(mm) (ID mm) (OD mm) (T mm) (mm) (mm) (S mm) (kg/Unit) (kN/m)

S & S Class 50D - SANS 676/677 Type SC/SI

 300  292  368  38  464  222  114  277  30.0

 375  369 445  38  540  235  127  356  18.8

 450  445  533  44  641  257  127  500  22.5

 525  514  616  51  730  263  131  659  26.3

 600  599  699  50  826  295  138  755  30.0

 675  685  787  51  920  318  139  883  33.8

 750  762  870  54  1016  329  139  1046  37.5

 825  818  946  64  1086  329  139  1295  41.3

 900  913  1041  64  1194  363  139  1452  45.0

 1050  1034  1194  80  1352  391  162  2026  52.5

 1200  1187  1365  89  1543  424  168  2566  60.0

 300  292  368  38  464  222  114  277  30.0

 375  369  445  38  540  235  127  356  28.1

 450  445  533  44  641  257  127  500  33.8

 525  514  616  51  730  263  131  659  39.4

 600  585  699  57  826  295  138  837  45.0

 675  673  787  57  920  318  139  878  50.6

 750  738  870  66  1016  329  139  1041  56.3

 825  812  946  67  1086  329  139  1343  51.9

 900  869  1041  86  1194  363  139  1837  57.5

 1050  1004  1194  95  1352  391  162  2326  78.8

 1200  1157  1365  104  1543  424  168  2929  90.0

 300  292  368  38  464  222  114  277  30.0

 375  369  445  38  540  235  127  356  37.5

 450  445  533  44  641  257  127  533  45.0

 525  514  616  51  730  263  131  659  52.5

 600  585  699  57  826  295  138  839  60.0

 675  665  787  61  920  318  139  1017  67.5

 750  722  870  74  1016  329  139  1338  75.0

 825  780  946  83  1086  329  139  1593  82.5

 900  869  1041  86  1194  363  139  1837  90.0

 1050  986  1194  104  1352  391  162  2502  105.0

 1200  1127  1365  119  1543  424  168  3266  120.0

Dia

LS

B

A

t

SANS 676 AND 677

S & S Class 75D - SANS 676/677 Type SC/SI

S & S Class 100D - SANS 676/677 Type SC/SI

| 11 |

SECTION 2RECTANGULAR PORTAL CULVERT

H

T

dt

W

D

S

IS

1220mm

S H CLASS T dt W D ISapprox.

mass(t)/m

600300

200S70 90 760 390 620 0,308

450 65 90 760 540 630 0,36600 60 90 760 690 640 0,409

750

300

175S

75 90 920 390 770 0,35450 70 90 920 540 780 0,4600 65 90 920 690 790 0,466750 60 90 920 840 800 0,512

900

300

175S

90 100 1100 400 920 0,445450 85 100 1100 550 930 0,513600 80 100 1100 700 940 0,577750 75 100 1100 850 950 0,63900 70 100 1100 1000 960 0,694

1200

300

150S

110 120 1440 420 1220 0,635450 105 120 1440 570 1230 0,716600 100 120 1440 720 1240 0,795900 90 120 1440 1020 1260 0,942

1200 80 120 1440 1320 1280 1,077

1500

300

100S

115 125 1750 425 1520 0,789450 115 125 1750 575 1530 0,882600 105 125 1750 725 1540 0,966900 95 125 1750 1025 1560 1,124

1200 85 125 1750 1325 1580 1,2651500 75 125 1750 1625 1600 1,39

1800

600

75S

130 150 2100 750 1840 1,328900 120 150 2100 1050 1860 1,525

1200 110 150 2100 1350 1880 1,7081500 100 150 2100 1650 1900 1,871800 90 150 2100 1950 1920 2,015

2100

600

75S

130 150 2400 750 2140 1,452900 120 150 2400 1050 2160 1,635

1200 110 150 2400 1350 2180 1,8181500 100 150 2400 1650 2200 1,9751800 90 150 2400 1950 2220 2,1252100 80 150 2400 2250 2240 2,257

2400

600

75S

140 160 2720 760 2440 1,66900 130 160 2720 1060 2460 1,87

1200 120 160 2720 1360 2480 2,071500 110 160 2720 1660 2500 2,261800 100 160 2720 1960 2520 2,4252100 90 160 2720 2260 2540 2,5732400 80 160 2720 2560 2560 2,68

3000

600

75S

220 190 3480 790 3040 2,454900 210 190 3480 1090 3060 2,807

1200 200 190 3480 1390 3080 3,1121500 190 190 3480 1690 3100 3,4011800 180 190 3480 1990 3120 3,6652100 170 190 3480 2260 3140 3,8762400 160 190 3480 2590 3160 4,173000 140 190 3480 3190 3200 4,6

3600

600

75S

210 250 4060 850 3640 3,41900 200 250 4060 1150 3660 3,73

1200 190 250 4060 1450 3680 4,031500 180 250 4060 1750 3700 4,321800 170 250 4060 2050 3720 4,59

450300

200S65 90 600 390 470 0,26

375 63 90 600 465 475 0,29450 60 90 600 540 480 0,313

SANS 986

| 12 |

SECTION 2SATS RECTANGULAR PORTAL CULVERT

W

H

Stl

tt st

tl

rD

1220mm

td

SATS SAR RECTANGULAR PORTALS (RAIL APPLICATION STORMWATER CULVERT)

Nominal Size Dimensions Water Way Approximate Mass

H Z W D St td tl tt r Area per m per unit

m mm mm mm mm mm mm mm m2 kg/m kg/unit

450 0 - 5 800 570 630 120 100 85 50/100 0,28 475 580

600 0 - 5 800 720 640 120 100 80 50/100 0,37 539 658

450 0 - 5 950 600 780 150 100 85 50/100 0,34 595 726

600 0 - 5 950 750 790 150 100 80 50/100 0,46 659 804

750 0 - 5 950 900 800 150 100 75 50/100 0,58 719 877

450 0 - 5 1100 570 930 120 100 85 50/100 0,41 570 696

600 0 - 5 1100 730 940 130 100 80 50/100 0,55 663 809

600 0 - 15 1100 790 990 190 100 80 50/100 0,57 818 998

750 0 - 5 1100 900 950 150 100 75 50/100 0,69 777 948

900 0 - 5 1100 1030 960 130 100 70 50/100 0,84 780 951

450 0 - 5 1440 610 1240 160 120 100 50/100 0,55 868 1059

600 0 - 7.5 1440 760 1240 160 120 100 50/100 0,73 960 1171

1200 0 - 7.5 1440 1360 1280 160 120 80 50/100 1,49 1240 1505

600 0 - 5 1750 755 1540 155 125 105 75/225 1,14 1099 1341

750 0 - 5 1750 905 1550 155 125 100 75/225 1,14 1178 1438

900 0 - 5 1750 1055 1560 155 125 95 75/225 1,38 1262 1540

1000 0 - 5 1860 1175 1566 175 180 147 150 1,53 1709 2085

1000 5 - 10 1860 1225 1566 225 180 147 150 1,53 1957 2380

1200 0 - 5 1860 1355 1580 155 180 140 75/225 1,85 1402 1710

1500 0 - 5 1860 1675 1600 175 180 130 150 2,33 2066 2520

1500 5 - 10 1860 1725 1600 225 180 130 150 2,33 2307 2815

600 0 - 5 2100 750 1800 150 150 120 100/300 1,62 1323 1614

900 0 - 5 2100 1070 1880 170 140 100 100/300 2,21 1524 1859

1000 0 - 5 2420 1225 2066 225 210 177 200 2,03 2447 2985

1000 5 - 10 2420 1275 2066 275 210 177 200 2,03 2775 3385

1500 0 - 5 2420 1725 2100 225 210 160 200 3,08 2860 3490

1500 5 - 10 2420 1775 2100 275 210 160 200 3,08 3176 3875

1800 0 - 5 2420 2025 2120 225 210 150 200 3,45 3700 4528

1800 5 - 10 2420 2075 2120 275 210 150 200 4,16 4012 4896

2000 0 - 5 2420 2225 2134 225 210 143 200 4,13 3254 3979

2000 5 - 10 2420 2275 2134 275 210 143 200 4,13 3566 4350

1500 0 - 5 2960 1725 2600 225 230 180 250 3,83 3377 4120

1500 5 - 10 2960 1825 2600 325 230 180 250 3,83 4139 5050

2000 0 - 5 2960 2225 2632 225 230 164 250 5,13 3820 4660

2000 5 - 10 2960 2325 2361 325 230 164 250 5,13 4586 5595

2500 0 - 5 2960 2725 2666 225 230 147 250 6,46 4221 5150

2500 5 - 10 2960 2825 2666 325 230 147 250 6,46 4984 6080

1000 0 - 5 3570 1275 3128 275 285 252 300 3,06 4062 4956

1000 5 - 10 3570 1375 3125 375 285 252 300 3,16 4984 6081

1500 0 - 5 3570 1795 3096 275 285 237 300 4,63 4653 5677

1500 5 - 10 3570 1875 3096 375 285 237 300 4,57 5575 6802

2000 0 - 5 3570 2275 3130 275 285 220 300 6,09 5242 6395

2000 5 - 10 3570 2375 3130 375 285 220 300 6,09 6164 7520

2500 0 - 5 3570 2775 3166 275 285 202 300 7,66 5775 7045

2500 5 - 10 3570 2875 3166 375 285 202 300 7,66 6697 8170

3000 0 - 5 3570 3275 3200 275 285 185 300 9,26 6270 7649

3000 5 - 10 3570 3375 3200 375 285 185 300 9,26 7193 8775

600

750

900

1200

1500

1800

2000

2500

3000

mmmm

S

| 13 |

RP CULVERT BASE SLABS

Culvert Span Max Leg Height Dimensions Approximate Mass Per

S H E t a B Metre Base

mm mm mm mm mm mm kg/m kg/unit

450 450 640 65 95 450 136 166

600 600 800 85 95 610 215 262

750 750 960 100 100 760 297 362

900 900 1150 115 120 910 400 488

1200 1200 1480 130 135 1210 574 701

1500 1500 1800 140 140 1520 748 913

1800 1200 2150 150 165 1820 949 1158

1800 1800 2150 150 165 1880 953 1163

2100 1500 2470 160 165 2140 1158 1412

2100 2100 2470 160 135 2200 1162 1417

2400 1500 2770 170 165 2440 1372 1674

2400 2400 2770 170 135 2500 1376 1679

3000 1500 3510 190 245 3020 1915 2337

3000 3000 3510 190 235 3040 1917 2338

3600 1800 4150 200 265 3620 2375 2897

SATS CULVERT BASE SLABS

Culvert Span Fill Dimensions Approximate Mass Per

S Z E t a B Metre Base

mm mm mm mm mm mm kg/m kg/unit

750 0 - 5 760 1000 160 120 482 588

750 5 - 10 760 1000 160 120 482 588

900 0 - 5 1150 160 120 910 533 651

900 5 - 10 1150 160 120 910 400 488

1200 0 - 5 1500 160 140 1220 698 851

1200 5 - 10 1500 180 1450 1220 775 946

1500 0 - 5 1900 180 175 1550 982 1198

1500 5 - 10 1900 220 175 1550 1178 1438

1800 0 - 5 2150 200 165 1820 1227 1497

1800 5 - 10 2150 250 165 1820 1504 1835

2000 0 - 5 2450 220 200 2050 1523 1858

2000 5 - 10 2450 280 200 2050 1902 2321

2400 0 - 5 2800 240 175 2450 1892 2308

2400 5 - 10 2800 320 175 2450 2470 3013

2500 0 - 5 3000 50 225 2550 2099 2561

2500 5 - 10 3000 330 225 2550 2719 3317

3000 0 - 5 3600 270 275 3050 2704 3299

3000 5 - 10 3600 370 275 3050 3633 4433

1220mm

a aB

E

25mm

tSECTION 2RECTANGULAR AND SATS PORTAL CULVERT BASES SANS 986

3. ROADS AND STORMWATER

| 14 |

| 15 |

SECTION 3ROADS AND STORMWATERKERB INLETS

General Requirements Any Stormwater system is only as good as the kerb inlet. There are �ve essential requirements to this vital structure as follows:1) Hydraulic E fficiency - This is the most important aspect of a kerb inlet and therefore requires the greatest attention including the need to remain unblocked at all times.2) Structural Strength - The proximity of this structure to the road requires that it is capable of withstanding any static or dynamic loads to which it may be subjected.3) Safety - Any deviation of the kerb lines, or the gutter creates a potential hazard for passing tr a ffic or pedestrians.4) Maintenance - Without suitable access for periodic cleaning, this will soon become clogged and of no use whatsoever.5) Economies of cost - The Kerb Inlet represents approximately 15% of the value of a stormwater reticulation and should therefore be cost e ffective.

The Salberg range of Kerb Inlets attends to these needs as appropriate. These are divided into two groups, the �rst being suitablefor use in subcritical �ow conditions and the second, for supercritical �ow conditions.

Subcritical FlowType 1: Cover slab for brick chambersType 2: Side / end entry chamber

TYPE 1. COVER SLAB FOR BRICK CHAMBERS.

2000mm

100mm

Brick walls

100mm x 100mm protectiveangle iron front

Type 9D Cover(600mm x 450mm)

1. 1000mm

Hydraulics - See Design Charts.

2. Structural strength - 120kN point load plus steel front edge to resist horizontal impact.

3. Maintenance - Access provided by means of a removable cover slab and lid.

4. Economies of cost - a simple lifting device cuts laying time to less than 10 mins.

SIDE / END ENTRY CHAMBER FOR SUBCRITICAL FLOW

TYPE 2

Channel

2000mm600mm

1000mm/2000mm long extensions

Pavement

Type 2 Kerb Inlet - U-Channel used in Subcritical Flow

The Type 2 Kerb Inlet is a U-Channel produced in 2000mm and 1000mm sections, with slabs in the same length, Slabs as in the Type 1 are cast with Angle on the front.

The channel is designed with a higher rear to ensure that it is the same height as the kerb and pavement, the lower front is designed to be the same level as the road. Water is intercepted at the road level and �ows into the channel. The U-Channel is cast with a 450mm x 1000mm hole, beneath the hole is a junction box this is designed to ensure drainage into the stormwater pipe.

| 16 |

SUPERCRITICAL FLOWSupercritical FlowType 3: The Salberg High Capacity Unblockable K.I. (Patent No’s: 88/8328 & 88/9250)1. Hydraulics – this patented K.I. has a unique layout

of steel foils which force the water downwards and sideways to create an unblockable high capacity intake to the stormwater system.

2. Strength – designed to carry a 120KN point along any point on the top and front face and 80KN on the steel grating. An angle iron leading edge isprovided in order to protect it against horizontal impact.

3. Safety – the high capacity draw-o ff is achieved without any deviation of the kerb line, no steeply gradedchannels, no excess water on the road.

4. Maintenance – access is obtained by removing the steel grating. This is minimal since the high velocity and the design of the foil ensure self cleansing properties.

5. Economies of costa. This is the most cost-e ffective product in the world due to its improved hydraulic e fficiency and comparing R/litre NOT R/metre.

b. Installation time is reduced by means of a special lifting device, which makes it possible to lay the complete unit in 20 minutes, thus saving on labour, plant and contract timec. No cast iron covers to be broken or stolen. The steel grating has locking bolts and chain to prevent unauthorised removal.

COMPONENTSThe system comprises of three components:1. A combination Side/Drop inlet chamber-This chamber

combines the �ow from the Transition Section and the Transverse Section with the water entering directly through the high capacity grating.

2. The Transition Section-This provides a limited means of increasing the interception capacityof the system. A maximum of 2 metres is recommended.

3. The Transverse section- This projects into theroad where the patent foils catch the waterwhich would otherwise have been bypass �ow.

SECTION 3ROADS AND STORMWATERKERB INLET AND DRAINS

TYPE 3 - COMBINATION INLET - FOR LARGE FLOW(IN THE SUPERCRITICAL REGIME)

Inlet Chamber

Removable gratings

Transverse grating

2000mm

600mm

725mm900mm

1000mm

Direction of �ow

Transitions

420mm

270mm

880mm

350m

m

380mm

440m

m

TYPE 3 - LEFT HAND

| 17 |

SECTION 3ROADS AND STORMWATERKERB INLETS AND DRAINS

Type 5 Kerb InletThe type 5 Kerb inlet is a U-channel which is available in 2000mm and 1000mm sections, 1000mm sections are manufactured with an angled channel with a 45° skew end. Slabs for the Type 5 Kerb Inlets are 1500mm in length. One of the slabs is manufactured at the same angle as the skew end channel and the other straight. Slabs are cast with angle iron on the front.

Channels are designed with the rear being higher to accommodate the height of the pavement and kerb, with the front being lower to accommodate the height of the road. Water is intercepted at the level of the road and �ows into the channel. Each channel is cast with a 450mm x 1000mm hole where the junction box is built allowing water �ow from the channel through the opening into the junction box, where it drains into the stormwater pipe.

TYPE 5

� As per Tshwane spec i�cation

Channel

2000mm600mm

1000mm/2000mm long extensions

Pavement

Type 5P (PI Pretoria Type - Tshwane Spec i�cationThe Type (P) is manufactured in the same way as the Type 5 with the following d ifferences:1. Slabs are cast without Angle Iron on the front2. Slabs are secured on the channels with an angled frame3. Frames are made from angle iron and are the exact shape as the front end of the channels when assembled4. Supports are made from angle iron and placed over the front leg of the channels5. Angled frame legs are made to �t over the upright supports, forming a steady framework on which the slabs stand

Angle FrameCast Iron 3m

TS Channel Angled

Piece LH/RH 1000mm

Slab = 1500mm

Straight

Slab = 1500mm

Angled End RH/LH

T2/TS Channel Plain 2000 x 600 x 525mm Support

TYPE 5P

Complete Unit 3 Meter

| 18 |

SECTION 3ROADS AND STORMWATERSLOTTED DRAINS

General Requirements Inadequate drainage systems lead to the problems of accumulated water on the surface of roads and parking areas.This is not only inconvenient for pedestrians but can cause major tr a ffic accidents and hold-ups. The slotted drain isideal for gently sloping areas and the bottom of sag-vertical curves, where its advantages are:1) It is hydraulically e fficient and drains all along its length2) Its simple to clean and has no grates to be bent or stolen.3) It creates no obstacle to the free �ow of tr a ffi c.4) It is a pipe and a drop inlet in one.5) Closed pipes run only partially full whereas this will run 100% full.6) It can be used on kerbed or un-kerbed areas.

DIAMETER

150 300 450

STRAIGHT

L 1250 1250 1250

H 260 410 600

W 260 410 600

Mass kg) 163 312 720

45˚ BEND

L 620 620 620

H 260 410 600

W 260 410 600

Mass kg) 142 300 720

END PLATE

T 60 80 90

L

L

H

H

H

H

W

W

W

Straight sections

W

With Spigot orSocket End Plate

Drop Outlets

45˚ & 90˚Bends

Mentis Grating

Cleaning Lidwith or without

Drop Outlet

L

L

L

| 19 |

SECTION 3ROADS AND STORMWATERCHANNELS

A. Taper Chute Channels There have been many attempts to �nd a satisfactory method of draining stormwater for steep slopes and embankments. Most of these have proved to be costly and doubtful e fficiency.The Taper Chute Channel provides an economical and simple solution to this problem that is both mechanically and hydraulically appropriate for this particular application. The units are designed to be mechanically interlocking so as to provide for thelongitudinal thrust due to the mass of channel above each joint and at the same time, provide su fficient �exibility to cope with slight settle-ment or scour of the supporting material. The kinetic energy in the water is reduced by:1) The turbulence created as it is forced to converge and jump to each section.2) The reduction in the overall gradient due to the step e ffect of the interlocking sections

Laying the units is simple as they can be manhandled into position and requires no mortar or other jointing materials.

50mm 375mm

Mass 85kg

Actu

al L

engt

h 85

0mm

E ect

ive

Leng

th 7

50m

m

360mm

210m

m

270m

m

50mm

A. TAPER CHUTE CHANNEL B. Trapezoidal ChannelsThese have an advantage over half-round channels in that

The nish along the top edge is also far superior to that of a

Dimension d

300 450

A 85 100

B 190 250

C 50 50

D 150 200

T 50 50

Mass kg 100 105

D

A B

d

A

T

C

B. TRAPEZOIDAL CHANNEL

Length 1000mm

TRAPEZOIDAL CHANNELS

they do not slip out of alignment when loaded along one side.

half-round pipe.

| 20 |

SECTION 3ROADS AND STORMWATERCHANNELS

wt t

h

t

HALF ROUND CHANNEL

A B C D t R

500 450 200 300 75 152

1. Suitable for parking areas, etc.2. Access gained by removing the grating

TYPE 4 DROP INLET CATCHPIT AND CROSS CHANNELS FOR SUBCRITICAL FLOW

600mm

450mm

Channel

“Mentis” gratings

1000mm/2000mm incrementsLooseend

plates

525mm

443mm

75mm

75mm

445m

m

410mm

600mm

Mentis Grating

1000mm

400mm

Bottom View

A = 500mm

B = 450mm

C = 200mm

EQUAL LEG CHANNEL & COVER SLAB

W h t

200 200 50

325 300 60

450 375 75

DRAINAGE COVERS FOR CHANNELS (DOG BONES)

B w t1 t2 v S

300 200 60 80 200 30

445 325 70 90 200 30

600 450 80 100 200 30

850 675 90 110 200 30

COVER SLABS FOR CHANNELS

B w t1 t2

300 200 40 50

445 325 50 60

600 450 60 75

855 600 80 100

670 600 90

B

v

S

w

t1 t2

4. WATER RETICULATION

| 21 |

| 22 |

SECTION 4WATER RETICULATIONFIRE HYDRANT POST AND BOX

Precast Concrete Hydrant Boxes and Fire Hydrant Post The following constitutes the spec i�cations covering the precast components for the use in metre boxes, valve and �re hydrant chambers:1) Materials – these shall comply with all the requirements laid down in SANS 677-1969 for cement, sand, aggregate, reinforcement and water.2) General – these chambers may have the cast iron cover cast in or a concrete cover may be used.3) Dimensions – the actual dimensions shall not d iffer by more than the following values: wall thickness – 3mm.4) Deviation from straightness – this shall not deviate by more than 5mm per metre of length.5) End Squareness – the maximum deviation from end squareness of the ends shall not exceed 6mm.6) Cover – the minimum thickness of the cover over all reinforcement shall be 10mm.7) Resistance to Proof Load – these valve boxes and chambers shall support a point load of 35KN spread over an area of 200x200mm without showing any signs of failure.8) Marking – the following information shall be indelibly marked on the boxes and covers:

a. The manufacturer’s trade name. b. The date of manufacture.

Hydrant Post

Type H w W

1 920 200 300

2 600 200 400

105mmSleeve

W

H

W

HYDRANT VALVE POST

400m

m

400mm

HYDRANT BOX

620mm x 550mm

445mm Dia

400m

m

75mm

390mm Dia

650mm x 580mm

70mm70mm

75mm

| 23 |

SECTION 4WATER RETICULATIONVALVE AND METER BOXES

Type 1 Valve / Meter Box (Medium Duty)with secured cover and removable slab

Rodding Eye Box

Type 3 Valve / Meter Box (Light Duty)with secured cover and extension pieces x 400 high

Inspection Eye Cover

350mm

510mm 390mm

200mm 200mm470mm

75mm

150m

m

Lid chainedto chamber

Stackableext pieces

150m

m

620mm x 550mm

390mm Dia

250

mm 75mm

80mm

640mm x 570mm

445mm Dia

80mm

75mm

190mm Dia

450mm Dia

8mm

Dia

lock

ingp

ins

70mm

20mm25mm

Lid chainedto chamber

250mm50mm

350mm x 350mm

300 x 300mm

200mm Die

75mm

350m

m

400m

m re

ach

2 Ex

tens

ions

150mm x 150mm

| 24 |

SECTION 4WATER RETICULATIONMARKER AND GUIDE BLOCKS

1. CABLE MARKERS

A B C Name Plate

200² 280² 380² 100² Aluminium

200² 300² 500² 100² Aluminium

2. ROUTE MARKERS

A B Name Plate

100²Adjustable between 600 & 2000

Available

150² plain, with

100² 1350 plate or letter

200² 1300 COT (CTMM)

3. GENERAL MARKERS

A B C D E PLATE

915 200 150 63 200 Available

600 200 200 50 300 with letter

as required

4. PIPELINE MARKERS

A B C

150² 225² 2000 (Marker pin on top)

100² 150² 1500 Available plain with plate or letter (as required)

A

B

C

1. CABLE MARKERS

50mm

AB

A

2. ROUTE MARKERS

C

A

B

D

3. GENERAL MARKERS

CB

4. PIPELINE MARKERS

A

Salberg manufacture a slab to �t onto a 750 dia chamber with aType 11A cast iron box. These are used to cover water valve chambers.

Type 11Acast iron box

165mm

880mm

Valve Chamber

80mm

25mm

Salberg also supply 750 dia chambers in 250 / 500 / 750 high sections

880mm

750mm

Type 11A Stop cock box

5. ELECTRICAL

| 25 |

| 26 |

SECTION 5ELECTRICALMINI SUB-STATION PLINTH

Mini sub-station plinth An electrical contractor has three major problems in this area. These are:1) He is not organised to deal with concrete and shuttering on a large contract.2) He cannot get into the trench to compact under the mini-sub.3) He does not have the time or the equipment.

The result is the eventual subsidence of the concrete foundation under the large mass of the mini-sub and therefore an unsightly tilted structure. Precast units are an economical solution to these problems.

Lack of standardisation by the manufacturers of electrical equipment does, however, pose a problem for the precast concrete suppliers. The following range of plinths and bases has been built up over the years and is o ffered to him to be used at his discretion.

HANDEL

COVER

1300mm

3200mm

995mm

615mm

290mm

290mm

300mm

400mm

P21

155mm

| 27 |

PLINTH SIZE WEIGHT MANUFACTURERESKOM SAP NR

DRW NR TYPE KVA unit client

P1 3290 x 1200 x 800 HIGH 2,460 HAWKER SIDDELEY A-7750 B 630-800

P2 3090 x 1190 x 800 HIGH 2,024 HAWKER SIDDELEY A-24026 B 315-1000 MOGALE CITY

P3 2000 x 1060 x 500 HIGH 1,023

P4 2740 x 1180 x 500 HIGH 1,190 HAWKER SIDDELEY R-0033 B 50-500

P5 1385 x 1170 x 500 HIGH 0,742 HAWKER SIDDELEY 502011 X1F SINGLE TIGERRING MAIN UNIT

P6 1470 x 1290 x 500 HIGH 1,004 STEELKOR 15-359-A4 3 WAY KIOSK FOR TSHWANE TSWANE

P7 1820 x 1410 x 300 HIGH 1,825 STEELKOR SCP DRAW

P8 1750 x 1100 x 350 HIGH 1,537 SCP DRAW

P9 1050 x 450 x 700 HIGH 0,390 SCP DRAW

P10 2880 x 710 x 300 HIGH 1,220 METROPOLITAN ELECT 32495 A METRO

P11 2570 x 1410 x 300 HIGH 2,666 STEELCOR 15-316-A4 TSWANE METER KIOSK TYPE MP8 TSWANE

P12 2890 x 1210 x 500 HIGH 1,410 HAWKER SIDDELEY R-0010 B 100-630

P13 3495 x 710 x 300 HIGH 1,379 METROPOLITAN ELECT 32496 A 100-630

P14 1888 x 900 x 350 HIGH 1,006 HAWKER SIDDELEY K4 & K4 AF PRETORIA

P15 2960 x 1086 x 800 HIGH 2,066 ACTOM SWITCHGEAR Y-920396 B 100-800 BENONI

P16 2500 x 940 x 600 HIGH 1,290

P17 1500 x 900 x 350 HIGH 0,896 HAWKER SIDDELEY K3 & K3AF

P18 2920 x 1140 x 500 HIGH 1,340 SCP DRAW

P19 3110 x 1335 x 300 HIGH 2,200 MEGATRON GP 87591G B 100-630 MEGATRON OIL UNIT / T3 MEGATRON

P21 3200 x 1300 x 300 HIGH 2,750 HS/ACTOM 0185544 D-DT-0859 B 315-800 CABLE ENTRY INFRONT /RMU ESKOM/CITY POWER

P22 3100 x 1300 x 300 HIGH 1,900 HS/ACTOM SCP DRAW TSWANE OLD SPEC

P23 1200 x 750 x 300 HIGH 0,596 ESKOM 0185543 D-DT-0861 11 & 22KV CT - VT ESKOM

P24 1000 x 480 x 600 HIGH 0,471 S/6026

P25 1500 x 1200 x 300 HIGH 1,614 ESKOM 0185546 D-DT-0863 11 & 22KV 3 WAY SF6 RMU ESKOM

P26 1000 x 600 x 300 HIGH 0,382 ESKOM 0185549 D-DT-1010 METER KIOSK ESKOM

P27 2900 x 900 x 300 HIGH 1,126 ESKOM 0185543 D-DT-0859 A 11 & 22KV ESKOM

P28 1500 x 1000 x 300 HIGH 1,190 ESKOM D-DT-0864 100-1000 ESKOM

P29 1200 x 550 x 950 HIGH 0,594 SCP DRAW

P30 600 x 400 x 1000 HIGH 0,256 SCP DRAW

P31 2564 x 744 x 600 HIGH 1,164 SCP DRAW

P32 1920 x 1240 x 500 HIGH 1,474 SCP DRAW

P33 3460 x 1270 x 500 HIGH 1,750

P34 570 x 420 x 500 HIGH 0,200 KEMPTON TOWN COUNCIL SCP DRAW KP1 SPARTAN

P35 700 x 650 x 500 HIGH 0,226 KEMPTON TOWN COUNCIL SCP DRAW KP2 SPARTAN

P36 2505 x 1090 x 500 HIGH 1,220 DESTA 471110359-1 B 0-315 WITH TICON RMU

P37 860 x 600 x 600 HIGH 0,212 GEM INDUSTRIES A3-7712 4 DOOR KIOSK

P38 640 x 495 x 500 HIGH 0,140 GEM INDUSTRIES A3-4009/C KIOSK SL V SUPPLY SANDTON

P39 3360 x 550 x 300 HIGH 0,754 HAWKER SIDDELEY R-0502 A 160-630 LARGE LV COMPARTMENT

P40 770 x 650 x 250 HIGH 0,277 SCP DRAW

P41 850 x 450 x 150 HIGH 0,108 E/LTD 257

P42 810 x 600 x 150 HIGH 0,114 E/LTD 258

P43 1850 x 1200 x 300 HIGH 1,335 ESKOM / CITY POWER 0185547 D-DT-0863 11 & 22KV 4 WAY SF6 RMU ESKOM

P44 2350 x 1300 x 200 HIGH 1,187

ELECTRICALMINI SUB-STATION AND KIOSK

CONTACT US

HEADOFFICE

IRENESalberg Park, Portion 159, Doornkloof

No 391, JR District, PretoriaTelephone: +27 (0)11 357 7600

Fax: +27 (0)11 357 763525®54' 28” S , 28®13' 59” E

Email: sales@salberg.co.za

KZN40 Hazelmere RoadRadcliffe, VerulamTelephone: +27 (0)32 541 6077Fax: +27 (0)11 357 7635-29.6288912 S; 31.0282468 EEmail: sales@salberg.co.za

P.O. Box 33, Irene, 0062Telephone: +27 (0)11 357 7600

Fax: +27 (0)11 357 7635Email: info@salberg.co.za

Website: www.salberg.co.za