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MULTI-PURPOSE PIPE
• Multi-purpose pipe (MP)
• DN 200/250/315/355
• In accordance with DIN 4262-1Typ R2 (Form D)/SD
• Colour: black
• Cellular construction – smooth inside, corrugated outside
• Including a profile sealing ring at each end in the
secondfactory-set double sliding socket joint
• Perforation in the upper part area symmetrically to
thevertical pipe axis at an angle of 120°
• Coloured crown marking
• Perforation width 0.8 to 1.4 mm
• Minimum water inlet surface 50 cm2/m
• Pipe length (without joint): 6 m
UNPERFORATED PIPE
• Unperforated multi-purpose pipe (UP)
• DN 100/160/200/250/315/355
• In accordance with DIN 4262-1Typ R2 (Form D)/SD
• Colour: black
• Cellular construction – smooth inside, corrugated outside
• Including a profile sealing ring at each end in the
secondfactory-set double sliding socket joint
• Pipe length (without joint): 6 m
• A specially developed sealing ring guarantees water tightness
under DIN 19527 (c. 1.0 – 1.4 bar)
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MATERIAL
AGROSIL 2500 pipes are made of PE-HD in accordance withDIN
4262-1 Annex B.PE-HD is a high-quality plastic with excellent
mechanicalproperties (high impact strength), good
chemical-biologicalresistance and best wear resistance. Its many
years of provenefficiency in practice make it a safe and reliable
materialfor drainage technology. Chemical resistance in
accordancewith leaflet 1 to DIN 8061.Sealing rings for MP and UP
pipes made of EPDM.
APPLICATION
Drainage tasks in the whole range of traffic engineering(road
and motorway construction, railway construction,road building for
farms and woodlands) and for civilengineering works.In landfill
construction for covering and remediation on theedges.
QUALITY REQUIREMENTS
AGROSIL 2500 drainage pipes in accordance withDIN 4262-1 are
subjected to continuous quality monitoring:
• Internal monitoring and documentation of the results by our
own quality laboratory
• External monitoring through SKZ (Süddeutsches
Kunst-stoffzentrum - ”South German Plastics Centre“) inWürzburg
MARKING
Every AGROSIL 2500 pipe has the following minimummarkings:• DIN
4262 Part 1• TYPE R 2 (Form D)• DROSSBACH-AGROSIL 2500• SKZ•
Production year/Quarter• PE-HD• Nominal width
SOCKET JOINT
All AGROSIL 2500 pipes are supplied with a factory-set
doublesliding socket joint. The moulded fittings for AGROSIL
2500pipes have factory-formed joints. The joints are fixed ontothe
drainage pipes by means of snap-in studs.With the multi-purpose
pipes (MP) and unperforated multi-purpose pipes (UP) a profile
sealing ring is fitted in the factoryonto the second trough. Thanks
to the moulded parts withwelded sleeves in combination with the
sealing ring on thepipe they can be laid as watertight
pipelines.
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Machinery · Pipe Systems
PIPE RANGE AGROSIL 2500 DRAINAGE PIPES
DN Perforation Article no. Pallet contents No. pipes Internal
External Drain Delivery lengthx 6 m diameter diameter cross-section
with double
acting fitting(useful length 6 m)
m piece per pallet mm mm cm2 mm
100 TP 621 30 100 648 108 100.0 120.0 78.5 6100LP 621 20 100UP
622 32 100
160 TP 621 30 150 288 48 150.0 177.0 176.7 6130LP 621 20 150UP
622 32 150
200 TP 621 30 200 138 23 198.0 232.0 307.9 6230LP 621 20 200MP
621 21 200UP 622 32 200
250 TP 621 30 250 96 16 248.0 289.5 483.1 6180LP 621 20 250MP
621 21 250UP 622 32 250
315 TP 621 30 300 54 9 296.5 345.0 690.5 6170LP 621 20 300MP 621
21 300UP 622 32 300
355 TP 621 30 350 54 9 347.0 398.0 945.7 6280LP 621 20 350MP 621
21 350UP 622 32 350
With DN 315 DROSSBACH cansupply a very well-graded rangeof
pipes, in particular in the uppernominal width range!
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MOULDED FITTING RANGE
C. AGROSIL 2500 DRAINAGE PIPE
12
T-PIECE
Article no. DN D3 (mm) Le (mm) L2 (mm)621 58 100 100 122.1 90
185621 58 150 160 179.6 130 300621 58 200 200 235.6 160 336
T-PIECE SS
Article no. DN D1 (mm) D2 (mm) D3 (mm) le (mm) L2 (mm) L4
(mm)621 58 250 250 247.0 290.5 293.1 170 510 110621 58 300 315
295.0 345.0 349.1 190 625 130621 58 350 355 344.0 398.2 403.1 190
625 130
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Machinery · Pipe Systems
T-PIECE WITH REDUCER
Article no. DN D3 (mm) D17 (mm) le (mm) le 1 (mm) L2 (mm) L3
(mm)621 58 151 160/100 179.6 122.1 130 90 300 50.0
621 58 201 200/100 235.6 122.1 160 90 335 50.0621 58 205 200/160
235.6 179.6 160 130 335.6 50.0
621 58 257 250/100 293.1 122.1 170 90 500 50.0621 58 251 250/160
293.1 179.6 170 130 500 50.0621 58 256 250/200 293.1 235.6 170 160
500 50.0
621 58 310 315/100 349.1 122.1 190 90 500 50.0621 58 311 315/160
349.1 179.6 190 130 500 50.0621 58 313 315/200 349.1 235.6 190 160
500 50.0621 58 314 315/250 349.1 293.1 190 170 500 50.0
621 58 357 355/100 403.1 122.1 190 90 500 50.0621 58 351 355/160
403.1 179.6 190 130 500 50.0621 58 358 355/200 403.1 235.6 190 160
500 50.0621 58 359 355/250 403.1 293.1 190 170 500 50.0621 58 360
355/315 403.1 349.1 190 190 550 50.0
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BEND 45o SS
Article no. DN D3 (mm) le (mm) L1 (mm) L 4 (mm)621 54 100 100
122.1 90 212 170621 54 150 160 179.6 130 319 249621 54 200 200
235.6 160 362 275
SEGMENT BEND 45o SS
Article no. DN D1 (mm) D2 (mm) D3 (mm) le (mm) L1 (mm) L4
(mm)621 54 250 250 247.0 290.5 293.1 169 398 267621 54 300 315
295.0 345.0 349.0 190 456 315621 54 350 355 344.0 398.2 403.1 190
450 290
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Machinery · Pipe Systems
BEND 90o SS
Article no. DN D3 (mm) le (mm) L1 (mm) Z (mm)621 53 100 100
122.1 90 232 173621 53 150 160 179.6 130 334 255621 53 200 200
235.6 160 422 325
SEGMENT BEND 90o SS
Article no. DN D1 (mm) D2 (mm) D3 (mm) le (mm) L1 (mm) L3 (mm) Z
(mm)621 53 250 250 247.0 290.5 293.1 170 400 320 640621 53 300 315
295.0 345.0 349.1 190 434 385 760621 53 350 355 344.0 398.2 403.1
190 450 410 690
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BRANCH 45o SS
Article no. DN D3 (mm) D17 (mm) le (mm) L2 (mm) L3 (mm)621 54
101 100/100 122.1 122.1 90 198 198621 54 152 160/160 179.6 179.6
130 300 300621 54 202 200/200 235.6 235.6 160 335 335621 54 254
250/250 293.1 293.1 170 510 255621 54 309 315/315 349.1 349.1 190
625 310621 54 353 355/355 403.1 403.1 190 625 310
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BRANCH 45o WITH REDUCER SS
Article no. DN D3 (mm) D17 (mm) le (mm) le 1 (mm) L2 (mm) L3
(mm)621 59 204 160/100 179.6 122.1 130 90 300 198621 59 210 200/100
235.6 122.1 160 90 335 198
621 59 207 200/160 235.6 179.6 160 130 335 300
621 59 257 250/100 293.1 122.1 170 90 500 198621 59 256 250/160
293.1 179.6 170 130 500 300621 59 252 250/200 293.1 235.6 170 160
500 335
621 59 631 315/100 349.1 122.1 190 90 500 198621 59 303 315/160
349.1 179.6 190 130 500 300621 59 308 315/200 349.1 235.6 190 160
500 335
621 59 356 355/100 403.1 122.1 190 90 500 198621 59 351 355/160
403.1 179.6 190 130 500 300621 59 355 355/200 403.1 235.6 190 160
500 335
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DOUBLE SLIDING SOCKET JOINT
Article no. DN D3 (mm) Le (mm)621 50 100 100 122.1 90621 50 150
160 179.6 130621 50 200 200 235.6 160
Article no. DN D3 (mm) Le (mm)621 50 251 250 293.1 170621 50 301
315 349.1 260621 50 351 355 403.1 255
END COVER
Article no. DN D3 (mm) le (mm) L1 (mm)621 56 100 100 122.1 50
75621 56 150 160 179.6 70 110621 56 200 200 235.6 95 150
Article no. DN D3 (mm) le (mm) L1 (mm)621 56 250 250 293.1 165
425621 56 300 315 349.1 255 600621 56 350 355 403.1 260 600
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Machinery · Pipe Systems
REDUCING SOCKET JOINTS
Article no. DN D3 (mm) D17 (mm) le (mm) le1 (mm) L1 (mm) L2
(mm)621 56 415 160/100 179.6 122.1 70 90 110 70621 56 421 200/100
235.6 122.1 95 90 150 70621 56 420 200/160 235.6 179.6 95 130 150
70
Article no. DN D3 (mm) D6 (mm) le (mm) le1 (mm)621 56 424
100/250 293.1 122.1 165 90621 56 438 100/315 349.1 122.1 255 90621
56 355 100/355 403.1 122.1 260 90
621 56 425 160/250 293.1 179.6 165 130621 56 434 160/315 349.1
179.6 255 130621 56 356 160/355 403.1 179.6 260 130
621 56 426 200/250 293.1 235.6 165 160621 56 430 200/315 349.1
235.6 255 160621 56 352 200/355 403.1 235.6 260 160
621 56 433 250/315 349.1 293.1 255 255621 56 353 250/355 403.1
293.1 260 260
621 56 354 315/355 403.1 349.1 260 260
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TRANSITION TO KG
Article no. DN D3 (mm) D19 (mm) le (mm) L1 (mm)621 57 100 100
122.1 110.4 90 100621 57 150 160 179.6 160.5 130 120621 57 200 200
235.6 200.6 160 130
SHAFT LINING
Article no. DN D1 (mm) le (mm)621 51 100 100 122.1 94621 51 150
150 179.6 132621 51 200 200 235.6 160
Article no. DN D1 (mm) le (mm)621 51 250 250 293.1 168621 51 301
300 349.1 259621 51 350 250 403.1 235
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Machinery · Pipe Systems
PROFILE SEALING RING
Article no. DN683 96 100 100683 96 150 160683 96 200 200683 96
250 250683 96 300 315683 96 350 355
FROG FLAP
Article no. DN Length621 55 100 100 1 m621 55 150 160 1 m621 55
200 200 1 m621 55 250 250 1 m621 55 300 315 1 m621 55 350 355 1
m
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FROM STANDARD TO INDIVIDUAL
D. AGROSIL-CONTROLLER
22
SHAFT BODY
• Shaft body, DIN 400, with continous PE-HD channel
• Welded construction on 3-layer cellular design
• With up to 4 connection pieces in freely selectable
nominalwidths for connection pipes type R 2 (Form D) in
accordancewith DIN 4262-1 and sleeve for connector pipe.
• Where required, DN 100 to DN 300 sleeves can be weldedon for
connection with KG pipes.
Section A-A Top view
3-layer cellular construction
welded connections
PE-HD sheet 10 mm
Optional sleeve for AGROSIL 2500DN100, DN 160, DN 200,DN 250, DN
315, DN 355with DN 100 to DN 300 sleeve KG possible
APPLICATION
AGROSIL-CONTROLLER serves in systems for collecting
anddischarging percolating water in road construction
(motorway,road and rail construction), in general civil engineering
worksfor connecting several pipe runs, and for checking,
cleaningand carrying out camera inspection and high-pressure
flushingmeasures.
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AGRO
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CON
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Machinery · Pipe Systems
• Easy to install
• No heavy-duty laying equipment necessary
• The body is in the earth away from traffic loads
• Easy to clean
• Camera inspections possible
• Tested quality - monitored internally and by
outsideagencies
• Optimum chemical resistance (PE-HD)
• High ageing resistance
• Optimum wearing resistance
• Variable connections possible
HIGHLIGHTSHIGHLIGHTS
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SHAFT VERSIONS - STANDARD SHAFT VERSIONS -CUSTOMISED
PRODUCTION
Basic body with DN Outlet Article no.1 Outlet 355 620 204 062
Outlets 180° 355 620 204 032 Outlets 90° 355 620 204 053 Outlets
355 620 204 044 Outlets 355 620 204 20
1 Outlet 250 620 204 102 Outlets 180° 250 620 204 022 Outlets
90° 250 620 204 183 Outlets 250 620 204 074 Outlets 250 620 204
21
1 to 4 outlets DN 100/160/200/315 with sleeves forAGROSIL 2500
or KG can be supplied on request.
The welded construction means that any nominal widthand
connection configuration is possible!
Ask about our special customised production - short
deliveryperiods are possible!
Top view
Section A-A 2 Outlets 180o
Measurements may vary slightly
Top view
Section A-A 2 Outlets 90o
Measurements may vary slightly
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AGRO
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Machinery · Pipe Systems
Top view
Section A-A 3 Outlets
Measurements may vary slightly
Top view
Section A-A 4 OutletsMeasurements may vary slightly
Top view
Section A-A 1 OutletMeasurements may vary slightly
MAIN AND CONNECTIONDIMENSIONS
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THE UNIVERSAL
E. VARIODRÄN
26
• Shaft body DN 400 with PE-HD sand trap
• Moulded part with 3 connection pieces for KG pipe withsleeve
(DN 100 and DN 160) or tapered end (DN 200)
and sleeve for connector pipe (see p. 27 for
connectionoptions).
• AGROSIL 1000 type C1 (Form F) and AGROSIL 2500 typeR2 (Form D)
pipes can be connected with adaptors.
• Where required, sleeves for connecting AGROSIL 2500type R 2
(Form D) drainage pipes in accordance with
DIN 4262-1 can be welded on.
VARIODRÄN serves in systems for collecting and
dischargingseepage water in road construction (motorway, road
andrail construction), in general civil engineering works
forconnecting several pipe runs, and for checking, cleaningand
carrying out camera inspection and high-pressureflushing
measures.
AGROSIL 2500 sleeve · DN 100AGROSIL 2500 sleeve · DN 160AGROSIL
2500 sleeve · DN 200
Tapered end KG · DN 200Sleeve KG · DN 160Sleeve KG · DN 110
Custom-made designs
HIGHLIGHTSHIGHLIGHTS
• Easy to install
• No heavy-duty laying equipment necessary
• The body is in the earth away from trafficloads
• Easy to clean
• Camera inspections possible
• Tested quality - monitored internally andby external
agencies
• Optimum chemical resistance (PE-HD)
• High ageing resistance
• Optimum wearing resistance
• Variable connections possible
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27
VA
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DR
ÄN
Machinery · Pipe Systems
Information
• The DN 100 sleeves have a slightly conical shape and enable KG
pipes (Da = 110 mm) without a seal and AGROFLEX (Da = 100 mm) PVC
drainage pipes in accordance with DIN 1187 to be connected.
• The DN 160 sleeves enable the connection of KG pipe (Da = 160
mm) with sealing ring and AGROFLEX
(Da = 160 mm) PVC drainage pipes in accordance withDIN 1187.
• The DN 200 tapered ends (Da = 200 mm) enable KG sleeves to be
slid on as well as connecting sleeves for AGROFLEX (Da = 200 mm)
PVC drainage pipes in
accordance with DIN 1187
MAIN AND CONNECTION DIMENSIONSVARIODRÄN
Article no. 621 52 200
Article no. 621 52 110Article no. 621 52 160
Sand trap
Sleeve KG DN 160
Sleeve KG DN 160
Sleeve KG DN 160 Sleeve KG DN 110
Sleeve KG DN 110
Sleeve KG DN 110
Sand trap
DN 200
Coned endKG measure
DN 200
Coned endKG measure
DN 200
Coned endKG measure
Sand trap
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ORIGINAL ACCESSORIES FOR DROSSBACH SHAFTS
F. SHAFT FITTINGS
28
INLET COVERFor overflow shaft, Class B, cast, DN 400, incl. cast
frameand concrete ring.The concrete ring must be laid in a
well-compacted gravelbed or site-mixed concrete so that the cover
does not lie onthe connector pipe. A sliding and separating layer
of film ora similar material must be located between the
site-mixedconcrete and the connector pipe!
Article no. 681 52 011
SHAFT CONNECTOR PIPEPE-HD DN 400
Construction length Article no.1 m 620 31 4141.5 m 620 31 4132 m
620 31 4126 m (for cutting to size in the field) 620 31 410
DIRT TRAPPE-HD, for Class B and Class D shaft covers
Article no. 681 52 007
SHAFT COVERClass B cast DN 400 with/without ventilation, incl.
cast frameand concrete ring.
The concrete ring must be laid in a well-compacted gravelbed or
site-mixed concrete so that the cover does not lie onthe connector
pipe. A sliding and separating layer of film ora similar material
must be located between the site-mixedconcrete and the connector
pipe!
with ventilation Article no. 681 52 004without ventilation
Article no. 681 52 003
Class D cast DN 400 with/without ventilation, incl. cast
frameand concrete ring.
The concrete ring must be laid on a concrete foundation atleast
20 cm thick and wide so that the cover does not lie onthe connector
pipe. A sliding and separating layer of film ora similar material
must be located between the concretefoundation and the connector
pipe!
with ventilation Article no. 681 52 006without ventilation
Article no. 681 52 008
VARIODRÄN FITTINGS
Article DN Article no.Sealing plugs 100 682 401 10Sealing plugs
160 682 401 60Sealing plugs 200 682 402 00KG AGROSIL 1000 Form F
adapter 100 681 521 00KG AGROSIL 1000 Form F adapter 160 681 521
50KG AGROSIL 1000 Form F adapter 200 681 522 00KG AGROSIL 2500 Form
D adapter 100 621 571 00KG AGROSIL 2500 Form D adapter 160 621 571
50
Article no. 681 52 006
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DR
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EMachinery · Pipe Systems
AGROSIL 1000 and AGROSIL 2500 are supplied in 6 mlengths packed
in wooden frame pallets. The pallets mustbe packed exactly on top
of one another on transportvehicles and secured against slipping.On
the site, use suitable lifting gear to unload and transportthe
pallets, such as fork-lift trucks or a crane with cushionedslings.
Do not unload by tipping or throwing.The storage site should be
firm and free of any foreignbodies that might damage the pipes.
Stack max. 2 palletson top of each other and make sure that the
wooden framesof the pallets are placed exactly. Stack loose pipes
on alevel place with displaced sleeves to a max. height of 1.5m and
secure at the sides. Because of the low weight, singlepipes can
easily be transported by hand and lowered intothe trench without
being thrown.Shaft material and fittings are supplied loose or
onnonreturnable pallets.
MACHINING
Check pipes and fittings before machining. Separate alldamaged
parts.The limit temperatures for transport and layingAGROSIL 2500
PE-HD pipes are between -20 °C and+40 °C.AGROSIL 1000 PVC-U pipes
are sensitive to low temperatures.For this reason, do not lay them
if the temperature is below0°C and take special care when
transporting them, takingaccount of their low temperature
brittleness.Use a finetoothed saw to cut lengths by sawing in
thetroughs without cutting the profile.With full and partial
drainage pipes, after cleaning thesleeves are pushed together dry;
with larger nominal widthsuse a lever where necessary, with a board
between the leverand the end of the pipe to protect the surface.
With multi-purpose pipes and unperforated multi-purpose pipes
cleanthe sleeves, tapered end and sealing ring carefully and
useDROSSBACH lubricant.
DELIVERIES
THINGS YOU SHOULD KNOW
G. TRANSPORT · LAYING ·MAINTENANCE
The pipe trenches must be excavated taking account of
therelevant laying and safety provisions, including
• DIN EN 1610 (10/97): Laying and Testing Sewer Pipes and
Conduits (replaces the previous standard DIN 4033)
• ATV DVWK-A 139 (06/01): Installing and Testing SewerPipes and
Conduits
• ZTV A-StB 97 (1997): Additional Technical
ContractualConditions and Directives for Excavations in Traffic
Areas
• Accident Prevention Regulations issued by
TradeAssociations
The pipe support must be implemented with the plannedgradient
and degree of compacting. For reasons to do withthe static, in the
pipeline zone use material from soil groupG1 or G2 that is capable
of being well compacted and isfilter stable (see the section
entitled ”Filter stableinstallation“).Frequently, for leading
percolating water to the perforationsof partial drain or
multipurpose pipes the lower area of thepipeline zone is to be
consist of dense material throughwhich the water cannot seep. For
this purpose, use cohesivesoil or foil on non-cohesive soil with a
gradient to theperforations. For pipe static reasons, with drainage
pipesmade of plastic the use of concrete for the support andbedding
to the perforations is not recommended. Flexibleplastic pipes
require a supporting layer in a compactableelastic soil material,
so that the pipe/soil interplay and thenecessary bedding reaction
pressure can develop.
PIPE TRENCHES AND PIPELINE ZONE
Cohesive soil
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30
FILTER STABLE CONSTRUCTION
Drainage pipes must be laid with suitable filter materials.
Ifthis is not done, malfunctions and restrictions on the
servicelife may occur as a result of blocked perforations or
depositsof fine soil particles in the pipe.The following general
information shows the fundamentalbackground. It is not intended to
replace concrete measuresbased on the local situation, which have
to be made wherenecessary by a specialist planner or in a soil
survey.
The choice of the filter material and the dimensions of
thefilter layer depends on the soil in place and the
perforationwidth of the pipes used:
• Soil in place
The gravel used around the pipe must be filter stable againstthe
soil in place and the soil that is to be drained. For thispurpose
it must have a suitable grain distribution.Terzaghi‘s filter rule
has proved its value:
D15 < 4 *d85
i.e. grain Ø of the filter material at 15% by weight < 4
*grain Ø of the soil in place at 85% by weight.
The gravel filter layer must be at least 200 mm thick on
allsides, even if multiple graduated material is used.If this
condition cannot be complied with, a suitably structuredgeotextile
must be used (see ”Leaflet on using geotextilesand geogrids in
civil engineering works for road construction“).
• Perforation width of the drainage pipe
The grain distribution curve of the filter gravel that is
usedmust have a grain Ø at 85% by weight that is greater thanthe
perforation width of the pipe. The perforation widths ofAGROSIL
1000 and AGROSIL 2500 are between 0.8 mm and1.4 mm in accordance
with DIN 4262-1.
When laying the pipes, make sure that the layout is inaccordance
with the function. AGROSIL 2500 partial drainand multi-purpose
pipes have a lengthways coloured markedon the crown. This marking
must be exactly uppermost. Withthe AGROSIL 1000 pipe, the pipe is
laid with the smooth flatbottom on the bottom of the trench.The
filter and backfill material must be inserted carefully
andgradually without being tipped from a height. Compactingin the
pipeline zone must be done by hand and with lightweightapparatus
only. When doing this, make sure that the pipe isnot pushed at the
sides or upwards out of its correct position(e.g. sand cone, rods,
etc.). Because of their single-layer wallconstruction and greater
flexibility, AGROSIL 1000 pipesrequire even greater care in this
regard than the two-layerAGROSIL 2500 pipes. Heavy-duty compactors
must not beused until a level of 1 m above the pipe crown is
reached.
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31
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EMachinery · Pipe Systems
Shafts made by DROSSBACH for drainage pipes areconstructed as
follows:A shaft body with welded sleeves for the inlets and
outletsand a sleeve for the shaft pipe, which is inserted into
theshaft body.The shaft pipe is cut to length in the field for the
exactinstallation height (delivery lengths: 1 m, 1.5 m, 2 m or6 m
for cutting to length in the field).The shaft pipe then leads in a
single nominal width throughto the surface just below the
cover.
A fine-toothed saw must be used for cutting. The shaftpipes have
a 3-layer wall construction. Make the cut in thetrough at a right
angle to the pipe axis so that the resultis a straight end without
the webs being cut. The positionof the corrugations can be seen on
the outer surface of thepipes (see the illustration at the bottom
right). Werecommend marking the cut with a wide marking tape.
1. Lightweight covers, designed for pedestrian traffic (Class A
15)
These lie directly on the shaft pipe. The shaft pipe can
absorbthe weight and the load of the cover.With grids that are
designed for pedestrian traffic cut theshaft connector pipe so that
the cover is exactly level withthe finished surface.
2. Heavy duty covers, designed for vehicular traffic (Class B
125 and D 400)
These lie on concrete rings outside the shaft pipes. Theirweight
and the load from the covers must be transferredthrough the
concrete rings into the soil without the shaftpipes experiencing a
vertical load either in the installedposition or through
settling.
With covers that are designed for vehicular traffic cut theshaft
connector pipe so that there is a minimum clearanceof 50 mm between
the upper edge of the shaft pipe andthe lower edge of the
cover.
With heavy duty covers, make sure as well that loads cannotbe
transmitted into the connector pipes through thesubstructure.
Class B 125
Lay the concrete ring in a firmly compacted gravel bed orin
site-mixed concrete so that the cover does not lie on theconnector
pipe. A sliding and separating layer of film or asimilar material
must be located between the site-mixedconcrete and the connector
pipe.
Class D 400
Lay the concrete foundation at least 20 cm thick so thatthe
cover does not lie on the connector pipe. A sliding andseparating
layer of film or a similar material must be locatedbetween the
concrete foundation and the connector pipe.
INSTALLING THE SHAFTS
Drainage pipes are inspected and maintained through
theappropriate shafts. With its smooth flat bottom, the
AGROSIL-CONTROLLER enables inspection cameras and
high-pressureflushing nozzles to be easily inserted into the pipe
holders.In contrast, VARIODRÄN shafts retain a certain amount
ofdirt in the collecting space and this can be sucked out
easilyduring cleaning work.When the drainage installation is handed
over to the operatorthere is usually an initial inspection and the
system iscleaned as well, if necessary. Following this, inspections
andcleaning measures should be carried out at regular intervalsto
keep the drainage pipes ready for use permanently.
AGROSIL 2500 drainage pipe and the AGROSIL-CONTROLLERand
VARIODRÄN shafts have been verified as being able towithstand the
usual flushing pressure of max. 130 bar usedin pipe cleaning today.
If rotating chains are to be used asmechanical cleaners only round
link chains should be used.The pipe cleaners must chose the right
apparatus andmethod of working to ensure that the drainage pipes
arenot damaged.
INSPECTION AND MAINTENANCE
Flushing tests atan independenttest body
Do not cut here Optimum cutting to sizein the trough
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32
Resistance of the material to water and soils
For its pipes and shafts DROSSBACH uses proven and
reliablematerials: PE-HD and PVC-U are resistant to surface
andleakage water, and with their resistance in the range of pH2 to
pH 11 are, in extreme cases, also resistant to watercontaminated in
industrial catastrophes or by water usedin fire fighting. On the
other hand, they are stable againsterosion and leaching of
ingredients and do not pass anysubstances to the leakage water or
the soil.
RESISTANCE
WHAT YOU SHOULD KNOW
H. PLANNING
Outflow of the expected volume of water withoutdamming up
For calculating drainage pipes, check the possible
throughflowvolume for a selected nominal width, given an
availablepipe gradient, or determine the required nominal width
fora volume to be discharged.The basic principles are found in the
work sheet ATV-DVWK-A 110 ”Hydraulic Dimensioning and Performance
Record ofSewer Conduits and Pipes“, which has now been revisedand
published in a new edition in September 2001
(ISBN3-935669-22-4).Important information and standards are also
contained inthe ”Directive for Highway Projects (RAS)“, Part
DrainageRAS-Ew (1987).
The internal roughness of the pipes is an important factorfor
flow losses. Like all plastic pipes with their very
smoothnon-porous inner surfaces, AGROSIL 1000 pipes made ofPVC-U
and AGROSIL 2500 pipes made of PE-HD have anabsolute pipe wall
roughness between 0.005 and 0.5 mm.The perforation has only a
slight effect on the outflowperformance. Partial drainage pipes and
multi-purpose pipesare unperforated in the lower area, and UP pipes
used purelyfor transport purposes do not have any perforations at
all.To take account of socket joints, shafts, positional
deviationsand perforations, in general a value of 0.5 mm is
assumedfor the operating roughness kb, and this can be used
fordimensioning using the flat rate concept (RAS Ew:kb = 0.4
mm).With AGROSIL 1000 drainage pipes with internal corrugatedwalls,
the roughness values are higher, but, in comparisonwith a
smooth-walled AGROSIL 2500 pipe with the samenominal width, the
influence effect is compensated forpartly by a slightly larger
outflow cross-section.
The outflow in dependence on the pipe gradient forAGROSIL 1000
and AGROSIL 2500 pipes can be seen in thefollowing diagrams.
DIMENSIONINGPipes and shafts for collecting and discharging
percolating andsurface water must conform to the following
requirements:
For collecting the water from the soil the water inlet surfaceof
AGROSIL 1000 and AGROSIL 2500 drainage pipes isgreater than or
equal to 50 cm2/m in accordance with DIN4262-1 and is independent
of the type of perforation. Thewater inlet surface of a metre
length of drainage pipetherefore corresponds to the outflow
cross-section of a DN80 pipe!The profile geometry of AGROSIL 1000
and AGROSIL 2500pipes, which has been optimised for their use as
drainagepipes provides the inflowing water with secure andpermanent
flow paths to the inlet perforations in the troughs.The filter
stable bedding of the pipes is absolutely essentialfor a long-term
guarantee of the water collection capacityof drainage pipes. The
correct choice and dimensioning andthe filter materials depend on
the local soil and thehydrological situation at each project and
requires greatcare in the planning stage. See the general
information inthe last chapter.
COLLECTING WATER FOR DISCHARGE
Worksheet ATV-DVWK-A 110”Hydraulic Dimensioning andPerformance
Record of Sewer
Conduits and Pipes“ September2001 edition
(ISBN 3-935669-22-4).
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33
DR
AIN
AG
EMachinery · Pipe Systems
1
10
100
1000
1 10 100Sohlgefälle in ‰
Durch
fluss
in l/s
DN 100
DN 160
DN 200
DN 250
DN 80
1
10
100
1000
1 10 100Sohlgefälle in ‰
Durch
fluss
in l/s
DN 100
DN 160
DN 200
DN 250
DN 80
1
10
100
1000
1 10 100Sohlgefälle in ‰
Durch
fluss
in l/s
DN 100
DN 160
DN 200
DN 250DN 315
DN 355
Flow diagram ofdrainage pipesAGROSIL 1000
Flow diagram ofdrainage pipesAGROSIL 2500
bottom midth slope ‰
flow
l/s
bottom midth slope ‰
flow
l/s
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34
Standard inspection methods using cameras and cleaningwith
high-pressure machinery are possible without anyproblems with the
pipes and shafts shown in this catalogue.See the previous chapter
for more details.After clarifying the concrete requirements it may
be necessaryto draw up application-based special solutions for
particularapplication and load conditions, for example,
thoseencountered in tunnel construction, with landfills, or
inindustrial and process engineering.Please contact our Engineering
Department.
GUARANTEE OF MAINTENANCEFACILITIES
Thanks to their material and geometrical parameters,
drainagepipes made by DROSSBACH have excellent properties foruse in
road construction and civil engineering projects. Withits high
E-module, PVC-U guarantees the high stability andload-bearing
capacity of AGROSIL 1000 pipes.With the AGROSIL 2500 pipes, PE-HD
characterises a highdegree of toughness at cold temperatures and
extremedeformation capability, without failure, including
underdynamic loads. The corrugated wall construction of bothtypes
of pipe leads to maximum stability.
In accordance with DIN 4262-1, the ring stiffness ofAGROSIL 1000
and AGROSIL 2500 drainage pipes is testedunder DIN EN ISO 9969 and
compliance with the standardsin the category ”SD“ is
guaranteed:
DN 80/100 ring stiffness ≥ 8 kN/m2DN > 100 ring stiffness ≥ 4
kN/m2
However, these ring stiffnesses are measured values
fromlaboratory tests to verify defined quality criteria. They
provideconditional information only on the behaviour of a pipeunder
concrete installation and load conditions and onpermanent
suitability for the planned application.The pipe static
verification for drainage pipes under theexpected load and the soil
and installation conditions of aproject can be carried out in
accordance with the relevantcalculation provision ATV-DVWK-A 127.
Where required,ask for our ”Property questionnaire for the static
calculationof DROSSBACH pipes“. With the help of a calculation
programyour data are used to check compliance with the
verificationcriteria strength, stability and deformation.In
general, it is not difficult to carry out this verificationfor the
drainage pipes even under the highest load classSLW 60 and
shallower cover. However, a firm support andbedding for the pipes
is necessary in accordance with DINEN 1610 ”Laying and testing
sewer conduits and pipes“ (seethe previous chapter).Note:
verification for type C1 (from F) drainage pipes canonly be done
approximately because the calculation modelsassume a circular
cross-section.
DURABILITY AND DIMENSIONALSTABILITY
Ring stiffness test in DROSSBACH‘squality assurance
laboratory