Greater economic efficiency for tomorrow’s infrastructure
The new Multitop ® manhole covers
class D 400 in accordance with DIN EN 124
ACO
Prerequisites governing innovations:
ACO Foundry technology at its best
The products are manufactured at ACO Guss’ foundries at Aarbergen
and Kaiserslautern, the foundry centre of the ACO Group. All products
undergo the most stringent quality controls, as well as controls
performed externally by the Kaiserslautern test authority in
accordance with the relevant standards in force.
2
The products are consistently the subject of further development under
an intensive innovation and development process and are thus adapted
to the continuously increasing traffic loads and changing building
methods.
ACO
ACO Guss provide the optimum solution irrespective of materials
Thanks to a high corrosion resistance,
two materials have proved themselves in
the drainage casting sector:
Cast iron with lamella graphite (grey
cast GG) EN-GJL as per DIN EN 1561
Cast iron with spheroidal graphite
(nodular cast iron GGG) EN-GJS as
per DIN EN 1563
Both materials are used wherever applicable.
ACO’s foundries at Kaiserslautern and
Aarbergen are in a position to manufacture and process both materials in an
economic manner. 3D design programmes, computer-based foundry and load
simulations ensure product development
in accordance with the most recent state
of the art. It is on this basis that we provide the optimum solution for every
application.
Load simulation by finite elements.
Simulation of the casting and setting process.
Smelting plant at the Kaiserslautern foundry.
Material properties
Cast iron with lamella graphite
(grey cast GG) EN-GJL as per DIN EN 1561
Cast iron with spheroidal graphite
(nodular cast iron GGG) EN-GJS as per DIN EN 1563
High corrosion resistance to waste water,
melting agents and other environmental effects
High corrosion resistance to waste water,
melting agents and other environmental effects
High resistance to pressure 600 to 1080 N/mm2
High resistance to pressure 700 to 1150 N/mm2
Optimum attenuation properties
Moderate attenuation properties
Tensile strength 100 to 350 N/mm2
High tensile strength 350 to 900 N/mm2
Low breaking elongation, low elastic deformation
Large breaking elongation, large elastic deformation
Thanks to these properties, grey cast is the ideal material
for manhole cover frames and gully tops.
Thanks to these properties, spheroidal graphite cast iron is
the optimum material for manhole cover lids exposed to
heavy loads and low weight gully tops.
3
Problems previously experienced with manhole covers during
installation, handling and operation
Gully tops and manhole covers are integral components of traffic surfaces and
are therefore nowadays indispensable.
Traffic safety calls for stringent regulations which have to be complied with by
all drainage elements. What matters is
not merely the static, but also the dynamic load generated by the traffic.
Weight
The traffic-safe seating of covers in
frames is normally guaranteed by:
heavy cover weight, about 90 kgs
screw joints or locking devices
hinges in conjunction with screw
joints or locking devices
All of these methods present drawback
to the user and partly also increase
maintenance expenditure.
Handling
Traffic safety by
screwing/locking/hinge
Increases maintenance expenditure.
Wear
Mortar joint
Long-term operational experience shows
in the case of manhole covers with
attenuating inserts in the cover normally
used considerable wear in the frame.
High risk of operating errors.
4
Hinges are fixed points during installation. Covers should normally fold
shut in the sense of the traffic. Step
irons have to remain accessible to
people and the cover may not impede access.
This means: these points have to be
borne in mind already when locating
the manhole.
In accordance with the accident prevention regulations in force, covers
with hinges have to be locked in the
open position. When closing, therefore, such a cover cannot simply be
folded shut. In the case of standard
covers with hinges, therefore, the
whole of the weight of the cover has
to be lifted in order to overcome the
locking device.
The open cover impedes maintenance work, for example the passage of rinsing hoses.
Wear
Another critical point is the mortar joint
between the manhole cover and the manhole. As a result of the nowadays customary, slightly recessed installation of
manhole covers to avoid damage to
manhole covers and snow ploughs, the
manhole cover, mortar joint and manhole
are exposed to high impact loads. Consequence: destruction of the mortar joint
and manhole head.
On the left, a section through a new frame; on
the right, section through a frame of identical
type having been in operation for a number of
Normal, recessed installation.
years.
Effects of wear:
Cover make a rattling noise despite
attenuating inserts
Frames have to be replaced at regular intervals
Impeding the traffic flow - TRAFFIC
JAMS!
High repair costs
Typical appearance of a destroyed mortar
joint.
ACO
Solution of the weight problem
Light cover with maintenance-free, traffic-safe locking device
for convenient operating and economic efficiency:
Multitop ® Manhole covers
Half the weight thanks to intelligent design
Weight kgs
100,0
Manhole cover
as per DIN 19584
Cover weight about
88.0 kgs
50,0
5
Manhole cover Multitop®
as per DIN EN 124
Cover weight about 43.0
0,0
1976
kgs
Weight saving in
excess of 50 %!
2005
Time
Solution of the handling and wear problem
Major simplification
of the operation and maintenance with the aid of:
Screwless locking device in the cover
4 unlocking openings through which
the cover can be opened.
6
Convenient operating using standard lifting tools thanks to low cover weight
and screwless locking device.
Insert the opening spanner into one of
the 4 unlocking openings in the frame
and unlock the cover by effecting a lever
movement towards the outside.
ACO
Pull out the cover using the operating
spanner at the lifting openings.
Lock the cover by means of a vertical
kick on the section of the cover protruding from the frame.
The cushioning insert in the frame
Wear cannot be avoided, but can be controlled.
In the case of the Multitop® manhole
covers, the cushioning insert is located
in the frame, and not in the cover. This
results in the contact surface of the
cover being exposed to wear.
.
Covers are easier to replace than
frames. No building sites, no traffic
congestion, “no” costs. In view of the
increasing traffic load, this assumes
greater importance than ever
before.
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Maintenance-free and traffic-safe solution the intelligent solution without interfering hinge
Maintenance-free, screwless, traffic-safe
locking device made of highly wear proof
plastic.
Conforms 100 % to DIN EN 124
Temperature resistant
Unaffected by dirt
Self-securing
Vandalism proof
The locking mechanism of the cover of
the Multitop® manhole cover is protected
by special ribbing.
Solution of the mortar joint problem
The new Multitop ® Bituplan ® system
capable of being rolled in
The overwhelming majority of our roads
are asphalted. Our experience and most
recent results of investigations which we
ordered to be carried out by the IKT Gelsenkirchen for this installation sector
formed the basis of development of the
new Multitop® Bituplan® manhole cover
system.
Its chief advantages
Disconnecting the manhole and
cover.
No mortar joint in the system.
Manhole relieved at the rate of up
to 85 % (substantiated by the IKT
Gelsenkirchen).
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Multitop ® Bituplan ® system
The answer to the mortar joint
weakness
NEW
OLD
Multitop ® Bituplan ® system
Manhole cover DIN 19584
45∞
85 %
ACO
15 %
100 %
Proven system
The frame of the manhole cover can be
used in an infinitely variable manner for
building heights ranging from 160 to
220 mm. Normally fitted manhole
covers of 160 mm frame height can
thus be replaced without altering the
manhole head.
Minimising the overrolling noise
The cover is not fitted directly on top of
the manhole head, but rolled or vibrated
into the road covering flush with the surface. This guarantees an absolutely
flush installation without expensive additional measures. No more recesses in
the road resulting in the generating of
noise by traffic. The additional side
effect: no jerk load, no shock like load
on the manhole over and the construction below.
Multitop® cast iron cover,
EN-GJS, with ventilation openings/without
ventilation openings. Standard lifting and
operating spanners can be used.
Cast iron frame, EN GJL,
building height minimum 160 mm
building height maximum 220 mm
Rotation symmetrical frame without bulges. The frame can thus be inserted in
any position.
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Steel adaptor ring, matching manhole
covers DIN 4034, parts 1 and 2, respectively DIN 4034 old!
Straight outer wall for optimum adhesion
of the surface covering.
The object of the ribbed arrangement is
to compact the lower structure and in
addition acts to prevent distortion.
Steel shuttering.
Obvious product features at a glance
The complete cover is removed and
thus does not interfere with maintenance work.
The use of standard lifting spanners
is possible.
Standard dirt traps pursuant to
DIN 1221 fit all Multitop® covers.
All Multitop® frames can be raised
and can thus be adapted to the prevailing construction situation.
Multitop® covers fit in a slide-proof
manner the standard manhole cones
and Adjustment rings pursuant to
DIN 4034.
Multitop® manhole covers can be
turned in the radial direction when fitted. Step irons thus always remain
accessible without any problem.
No awkward compromises with
regard to the contact surface of the
frame: in the case of BEGU® and GGgrey cast frame, it is identical to the
contact surface of frames pursuant
to DIN 19584.
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Multitop® manhole covers can also
be supplied with coat-of-arms cover/
lettering in the frame when placing
an order for 50 units.
ACO
In view of their building height, Multitop® manhole covers can be used
wherever covers pursuant to DIN
19584 have been used up to now.
Bracing at the manhole head for the
purpose of level adjustment is no longer called for.
The system at a glance
Multitop ® Manhole covers class D 400 as per DIN EN 124
8 variants for more than 90 % of application cases
Cast iron cover,
Cast iron cover,
EN GJS,
EN GJS,
with ventilation holes
without ventilation holes
Cast iron frame,
EN GJL, round,
capable of being rolled in,
Bituplan® system
BEGU® frame, round
Cast iron frame,
EN GJL, round
BEGU® frame, square
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Multitop ® Manhole covers class D 400 according to DIN EN 124
Product descriptions
Ø 860
Ø 680
Product information
Multitop® Bituplan® manhole cover system
160-220
50
for flush-with-floor installation in bituminous
road coverings, class D 400
according to DIN EN 124, clear width 605 mm
Ø 605
height min. 160 mm up to max. 220 mm
cast iron frame, round
compatible with cover according to DIN 19584
and dirt trap DIN 1221
with PEWEPREN® insert
cast iron cover, weight approx. 43.0 kgs
with two maintenance-free, screwless and traffic-safe catches of highly wear-resistant plastic
with steel adapter ring
Art.-no.
without ventilation holes art.no. 600651
weight approx. 101.0 kgs
Weight
Pcs/
kgs/pce. pallet
with ventilation holes art.-no. 600650
EDP
order no.
600650
101.0
5
600650
600651
101.0
5
600651
Weight
Pcs/
450
Multitop® Bituplan® system
245
Art.-no.
Multitop® steel casing for manhole covers
Bituplan® system
Art. no. 64476
kgs/pce. pallet
64476
10.0
––
EDP
order no.
64476
Ø 732
12
Multitop® PEWEPREN® manhole cover
class D 400 according to DIN EN 124
50
125
Ø 785
Ø 680
clear width 605 mm, height 125 mm
Ø 605
BEGU® frame, round
compatible with cover according to DIN 19584
and dirt trap according to DIN 1221
with PEWEPREN® insert
cast iron cover, weight approx. 43.0 kgs
with two maintenance-free, screwless and traffic-safe catches of highly wear-resistant plastic
Art.-no.
with ventilation holes art. no. 600559
without ventilation holes art. no. 600560
weight approx. 117.0 kg
Multitop® with BEGU® frame, round
ACO
Weight
Pcs/
kgs/pce. pallet
EDP
order no.
600559
117.0
10
600559
600560
117.0
10
600560
Multitop ® Manhole covers class D 400 according to DIN EN 124
Product descriptions
Multitop® PEWEPREN® manhole cover
class D 400 according to DIN EN 124
50
125
Ø 785
Ø 680
Product information
clear width 605 mm, height 125 mm
Ø 605
cast iron frame, round
compatible with cover according to DIN 19584
and dirt trap according to DIN 1221
with PEWEPREN® insert
cast iron cover, weight approx. 43.0 kgs
with two maintenance-free, screwless and traffic-safe catches of highly wear-resistant plastic
Art.-no.
without ventilation holes art. no. 63427
weight approx. 102.0 kgs
Weight
Pcs/
kgs/pce. pallet
with ventilation holes art. no. 63426
EDP
order no.
63426
102.0
10
63426
63427
102.0
10
63427
Weight
Pcs/
Multitop® with cast iron frame, round
785
Multitop® PEWEPREN® manhole cover
class D 400 according to DIN EN 124
50
125
Ø 680
clear width 605 mm, height 125 mm
Ø 605
BEGU® frame, square
compatible with cover according to DIN 19584
and dirt trap according to DIN 1221
with PEWEPREN® insert
cast iron cover, round,
weight approx. 43.0 kgs
with two maintenance-free, screwless and traf-
Art.-no.
kgs/pce. pallet
fic-safe catches of highly wear-resistant plastic
with ventilation holes art. no. 600561
without ventilation holes art. no. 600562
weight approx. 178.0 kgs
EDP
order no.
600561
178.0
5
600561
600562
178.0
5
600562
Weight
Pcs/
Multitop® with BEGU® frame, square
Multitop® lifting and operating key
600
length 600 mm, to be used for
Art.-no.
Multitop® manhole covers and gully tops
Art. no. 600643
kgs/pce. pallet
600643
1.5
––
EDP
order no.
600643
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The new Multitop ® Family
Besides the Multitop® gully tops, total of
four designs, successfully introduced
into the market three years ago, the
Multitop® range is now completed by the
new Multitop® manhole covers, with a
total of eight designs.
The new Multitop ® family capture the roads
The Multitop ® gully top range, class D 400
Gully top, 300 x 500, desk-shape
Gully top, 300 x 500, gutter-shape
Gully top, 500 x 500, desk-shape
Gully top, 500 x 500, gutter-shape
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The Multitop ® manhole cover range, class D 400
Manhole covers, Bituplan® system, cast iron frame, round, cast iron cover, with/without ventilation holes
Manhole covers, BEGU® frame, round, cast iron cover, with/without ventilation holes
Manhole covers, cast iron frame, round, cast iron cover, with/without ventilation holes
Manhole covers, BEGU® frame, square, cast iron cover, with/without ventilation holes
s.a. ACO Passavant n.v.
Preenakker 6
1785 Merchtem
Tel: 052 38 17 70
Fax: 052 38 17 71
[email protected]
www.aco.be