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Drainage Systems

Modular 125

Stainless Steel Channel Drainage System

Product catalogue

ACO Building Drainage

June 2012



Our built environment is becoming ever more

complex. Applications are becoming more

sophisticated and the increasing pressure of

regulations and standards make achieving

design, performance and financial goals ever

tougher.

ACO Building Drainage is a new concept

within the ACO Group. Our mission: to

eliminate design risk, to reduce installed and

life cost and to deliver exceptional finish and

performance in every product application.

We achieve this through three factors:

� High performance materials

� Design experience and project support

� Global manufacturing capacity

Our global resources and fabrication capacity

make it possible for us to deliver best value,

both with our standard products and with our

bespoke designs. Confidence is further

assured with quality systems that are in

accordance with ISO 9001-2008.

ACO Building Drainage’s extensive portfolio

includes:

� Standard stainless steel and galvanised

steel channels

� Stainless steel gullies

� Stainless steel socketed pipe system

� Bespoke channel drainage systems

� Roof/Balcony drainage systems

� Stainless steel and aluminium

access covers

� Anti-flood backflow protection systems

� Wetroom and shower drainage

� Grease Management systems

ACO Building Drainage is a division of ACO

Technologies plc and part of the worldwide

ACO Group. The Group has sales in excess of

£600 million worldwide with production

facilities in the UK, Germany, France,

Switzerland, Denmark, Spain, Poland, Czech

Republic, Australia and the USA. In total

more than 3500 people are employed in 40

countries throughout the world.

Tel: 01462 816666

Fax: 01462 851490

e-mail Enquiries: [email protected]

website: www.acobuildingdrainage.co.uk

2

ACO Modular 125

Contents

STAINLESS STEEL CHANNEL DRAINAGE SYSTEM

System Overview

Introduction to Modular 125 Stainless Steel Channel Drainage System 4

Applications 5

Features and benefits 6

Channel Edge Profiles 8

Foul Air Traps 9

Grating Options Overview 10

Specification and Ordering Procedure 12

Technical Data and Accessories

Load Class 15

Spigot Outlet Options and Accessories 16

Gully Outlet Options and Accessories 19

Channel Units and Accessories 23

End Plates and Accessories 26

Grating Lockings and Security 27

Gratings - Channel 28

Gratings – Gully 31

Installation

Modular System Assembly Inverts 33

Gully and Channel Installation 34

ACO Building Drainage Vinyl Seal® 37

Care and Maintenance 39

Stainless Steel

Families 41

Families and Corrosion resistance 42

Finishing Processes 43

Corrosion Resistance Chart 45

Model Specification Clause

Model Specification Clause 47

3

The ACO Building Drainage Modular 125 stainlesssteel linear drainage system is a further developmentof the highly successful Modular Channel system.

Taking full advantage of the significant investment instate-of-the-art manufacturing plant, ACO BuildingDrainage now can offer an improved performance,fully flexible stainless steel drainage system suitablefor most applications – off the shelf.

Modular 125 offers the first choice for performanceand flexibility. Significant improvements include:

4 Fully tested and classified to BS EN 1433 –Drainage channels for vehicular and pedestrian areasfor enhanced operational confidence.

4 Vee-bottomed profiled channel for enhanced flowefficiency at low flow rates.

4 Extended range of constant depth and slopinginvert channels and accessories.

4 Unique optional grating security locks availablewithout extended delivery time penalty.

4 Lightweight channel sections minimise the risk toconstruction employees during the installation phase.

4 Wide variety of invert depths and channel falls tosuit most applications.

Manufactured in corrosion resistant 304 gradeaustenitic stainless steel that is fully pickle passivatedto remove embedded iron and chromium-depletedweld-zones, outstanding performance and longevity isassured.

For particularlychemicallyaggressiveapplications,Modular 125 isavailable in 316grade stainlesssteel to specialorder.

The enhancedcorrosionresistance andextreme durabilityof stainless steelsmake the

material suitable for many applications demanding areliable, long-life performance.

One key attribute of stainless steel is often overlookedin that the raw material is manufactured from at least70% of recycled materials, therefore significantlycontributing to a sustainable environment.

Additionally, stainless steel can be 100% recycled ifthe products are ever removed or at the end of itsworking life.

SYSTEM INTRODUCTION

4

4 Level invert

4 Continuous fall

4 Combined fall

4 Vee channel profile

4 Wide grating choice

4 System fully BS EN 1433 compliant

ACO Modular 125 - System Overview

APPLICATIONS

5

The ACO Building Drainage Modular 125 stainlesssteel linear drainage system has been designed toprovide linear drainage solutions in its standard formwithout modification.

The system is available off the shelf for a wide rangeof applications.

Food Processing

Retail

Chemical & Pharmaceutical

Brewing, Bottling

& Canning

School & Leisure

Human & Animal

Health Care


6

Modular Range

Overall system installation conforms to BS EN 1433

installation and load test performance. 13 grating

types are available with loading class A15 to C250.

Gully tops are welded to the channel eliminating

potential bug trap areas. The gully body can be

connected to an ACO Eurogully body for

installation convenience.

All gully bodies are supplied complete with

a one-piece foul air trap. Foul air traps on

both the horizontal and vertical gullies are

completely removable to allow easy rodding

access to the connecting pipework for cleaning

and maintenance. 50mm trap water seal conforms

to BS EN 1253.

Flow rate up to 4 l/s and 3.2 l/s are available

from vertical and horizontal outlet gullies

respectively.

An optional sieve or basket collects debris

effectively.

The telescopic gully arrangement provides

variable invert connection capability.

Nitrile rubber ‘O’ – ring provides seal between

gully body and top.

Chamfered spigot outlets provide easy push-fit

connection to drainage pipes.

Both vertical and horizontal gully bodies have an

optional clamping flange to clamp a damp proof

membrane.

An optional drainage ring is available to assist in

draining sub-surface water where a damp proof

membrane is used.

Gullies have deep rounded bodies to deter silt

build up for easy cleaning.

110mm dia spigot outlets with optional in-line

foul air trap provide a 1.2 l/s flow capacity.

Spigot outlets can be supplied with a foul air trap

which has a water trap depth of 50mm meeting

the requirements of BS EN 1253. The foul air trap

allows for an optional sieve to be used.

Spigots can be supplied with a debris basket if

the foul air trap is omitted.

Vee-bottomed channel profile enhances flow

efficiency at low flow rates for a cleaner, hygienic

system.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1

6

118

13

4

1214

3

5

3

10

9

4

5

2

7

FEATURES AND BENEFITS

15

15


7

Leisure discreet gully outlets provide greater flow

than a spigot outlet and also maintain a

consistent width to the channel where aesthetic

considerations are important.

The leisure discreet gully is supplied complete

with a foul air trap.

Leisure discreet gully flow rate for vertical outlet

in 125mm channel depth up to 2.5l/s and 2 l/s

for 70mm channel. For horizontal outlet, 1.8 l/s

and 1.5 l/s for 125mm and 70mm channel depths

respectively.

Channel and gully tops finished with a brushed

14mm wide edge detail providing an attractive

and practical interface with all surrounding floor

finishes. All products are compatible with the

optional ACO Vinyl Seal® for a fully welded

flexible floor attachment solution.

Channels are supplied complete with removable

spacer bars to aid installation that are easily

removed prior to grating installation.

Concrete anchor ties are supplied welded to the

channel for increased operational robustness

following installation.

Levelling feet assist in setting the channel out to

finished floor level and provide a convenient

concrete anchor.

Corner units accommodate standard 500mm

grating lengths.

Branch units accommodate standard 500mm

grating lengths.

Flange plates are welded to each channel section

and allow multi-point clamping of the neoprene

sponge gasket for a totally waterproof seal.

Closing end plates available for all level invert

channel depths.

Outlet end cap available to special order.

FEATURES AND BENEFITS

22

23

24

25

26

27

16

17

18

19

20

21

14

23

20

22

25

24 16

21

18

27

19

3

17

26

30 metre continuous 0.5% (1:200) slope to centre

outlet system available


8

CHANNEL EDGE PROFILES

Modular 125 channels are available with differentedge details to suit varying load requirements and thesurrounding floor material.

Standard Channel

Suitable for tiles, concreteand epoxy resin floors inpedestrian and lightindustrial applications.

Suitable for Load Class A15 & B125 to BS EN 1433.

PVC Infill Edge

The underside of thechannel is infilled with aPVC strip to provideadditional strength in dense

traffic areas and to make installation easier. Suitablefor Load Class C250 to BS EN 1433.

Vinyl Seal®

Ideal for vinylsheet flooringappli-cations. Thefully welded

system is fully watertight and improves hygieneperformance by eliminating cumbersome mechanicalclamping systems traditionally used. This system hasbeen successfully used in hundreds of applicationsboth nationally and internationally.

Channel edge

Mastic sealant

PVC infill

Standard channel with vee profile

ACO Building Drainage VinylSeal® for

welded vinyl sheet flooring

1

2

3

4

5

1

2

3

4

5


FOUL AIR TRAPS

9

The foul air trap prevents foul air passing backthrough the gully from stagnant or dirty water withinthe connecting pipework.

The water trap level is maintained in the gullies bymeans of weirs formed by the trap unit fitted in thegully body. These are fully removable to allow roddingof the connecting pipework and easy cleaning of thegully body.

50mm water seal depth for all foul air traps.

Modular Vertical Outlet Gully Leisure Discreet Gully Vertical Outlet

Leisure Discreet Gully Horizontal OutletModular Horizontal Outlet Gully

Modular Channel Spigot Outlet Flow

Flow rate: 1.2 l/s

Flow rate: 2.5 l/s

Flow rate: 1.8 l/s

Flow rate: 4.2 l/s

Flow rate: 3.2 l/s


10

GRATING OPTIONS OVERVIEW

Plain MeshLoad class A15 & C250

Electropolished 304

stainless steel

Slip resistant meshLoad class A15 & C250

Electropolished 304

stainless steel

PerforatedLoad class C250

Pickle passivated

304 stainless steel

Aperture for

optional grating

lock provided

Ladder – reversible plain or slip resistantLoad class C250

Pickle passivated

304 stainless steel

Slotted LockedLoad class A15 & C250

Pickle passivated

304 stainless steel

Aperture for optional

grating lock provided

Heelsafe Load class B125

Brushed 304

stainless steel

Locking option

available


11

GRATING OPTIONS OVERVIEW

Notes:

1. All grating designs load tested and certified to BS EN 1433. Declaration of Conformity available on request.

2. Gratings supplied as standard without locking. Details of locking systems available are described on page 27.

Plastic (white)Load class A15

Polyethylene

QuadratoLoad class A15

Brushed 304

stainless steel

InterceptLoad class A15

Brushed 304

stainless steel

Composite (black and white)Load class C250

Aperture for optional

grating lock provided


12

SPECIFICATION AND ORDERING PROCEDURE

Ordering the Modular channel system

With the wide range of products available off-the-shelf, specifying and ordering the Modular 125system could not be easier. The following procedureaddresses product selection and ensures that allaspects of the system are covered. Should you wish,ACO Building Drainage can provide a take-off servicebased on your plan details.

Modular system customisation

Sometimes it is necessary to shorten a channel andgrating, or provide an outlet or inlet beyond thosepositions available in our standard product range, all ofwhich is easily accommodated in our flexiblemanufacturing facilities.

Contact the ACO Building Drainage Helpline on 01462816666 for further details and advice.

Load considerations 15

Outline plan 6-7 Produce a plan of theproposed installation,identifying outletpoints and invertdepths at that point.

ACO offer a free, noobligation hydrauliccalculation servicewhich can optimisechannel depths for agiven capacityrequirement.

Built-in fall (slopinginvert) channelsprovide a degree ofself-cleansing andshould be used wherepossible. However,level invert or flatchannels can functionhydraulically whereconstruction depth isrestricted.

Selecting an outlet 16-22 Select an outlet withan appropriate flowrate which meets anyinvert restrictions.Horizontal outletsoffer shallower outletpoints but are not asefficient hydraulically.

As an outlet will be atthe lowest part of thesystem, select thedeepest possibleinvert to allow for fallsin channels connectedto it.

Consider bothmaintenance facilitiesand aestheticconsiderations.

Page Description Helpful HintsGeneralConsiderations

Select appropriategrating Load Class toBS EN 1433 for theparticular application.

For Load Class C250,channel edge PVC infillwill be supplied asstandard.

Always allow for thehighest loading.Particularly forindustrial applicationswhere pallet trucksand fork lift trucksmay access thesystem, assess vehiclewheel loads as thesecan vary dependingon the vehicle.

Consider future usewhere possible.

Vehicles with solidtyres impart greaterstress on gratingscompared topneumatic tyres, socare needed.

Do not use 'slipresistant' gratings inareas where turningvehicles are likely todamage the grating.

Step 1

Step 2

Step 3


13

SPECIFICATION AND ORDERING PROCEDURE CONTINUED

Outlet option 2.

Leisure discreet gully

19 The Ø110mm outletleisure discreet systemprovides greater flowrates than a spigotoutlet. Flow rate isoptimised in the125mm deep gully.

Optional sedimentbasket requiresperiodic removal andcleaning.

Jetting / rodding viathe removal of thefoul air trap.

Visually non-intrusiveand can be located byvisual inspection alonga channel run.

Outlet option 3.

Gully systems

20-22 One or two-way gullytop options with aØ110mm outlet,providing greaterhydraulic capacityoverall.

Hydraulic capacitymaximised in verticalorientation.

Maintenance iseffected through anoptional sedimentbasket or sieve with afoul air trap suppliedas standard.

Gully bodies haverounded bowls tominimise silt build up.

The gully top is widerthan the channel and istherefore identifiablewithin a channel run.

Gully top gratingoptions do not include‘Slotted, Plastic,Composite, Quadratoor Slotted Intercept’grating styles whichare available in theModular channelgrating range.

Modular

Outlet option 1.

Spigot

16-18 The Ø110mm outletspigot can be suppliedwith or without a foulair trap. If no foul airtrap is used asediment basket canbe installed. If a foulair trap is used adebris sieve can befitted.

An optional sedimentbasket or debris sieveprovides some degreeof maintenance.Complete cleaningwill require removal ofthe foul air trap.

Jetting / rodding viathe removal of thefoul air trap.

Spigot outlets are notvisually intrusive andcan be located byvisual inspection alonga channel run.

PageChoosing an Outlet Description Maintenance Aesthetics

Modular

Modular


14

SPECIFICATION AND ORDERING PROCEDURE CONTINUED

Page Guide Helpful hintsGeneralconsiderations

Adding channels 23-25 Start at the outletposition and work backadding channels asappropriate. Wherecombined falls orsloping falls arerequired, ensure thereis a logical fall to theoutlet where thedeepest channelsections are positioned.

Using longer lengthchannels saves cost,minimises joints andreduces installationtime.

Shortening built-in fallchannels is possibleonly at the start of arun. To adjust a built-infall mid-run, it isnecessary to introducea level invert channel.

Consider the depthsavailable in cornersand branch unitswhich, if a built in fallis required, should bea shallower invertthan the outlet.

Increased run lengthscan be effected byintroducing levelchannels within a runof built in fallchannels.

End plates 26 Terminate the systemwith end platescorresponding to thechannel depth at thatlocation.

N/A N/A

Channel edge accessories

26-27 Select an edge detailappropriate for theLoad Class andflooring finish.

PVC infill provides alow cost option forimproving overallchannel durability,particularly intrafficked areas.

Vinyl / flexible sheetflooring can beseamlessly ‘welded’ toACO Building DrainageVinyl Seal®.

Gratings 28-32 Select correct LoadClass for theapplication.

Do not use slip resistantgratings where vehiclesare likely to turn on thegrate.

Consider gratingavailability for bothchannel and gully.

Security lockings canbe added at extra costto all gratings.

Additional lead timemay be required.

For bare foot areasconsider Heelsafe,Quadrato, Intercept orplastic grating styles.

Step 4

Step 5

Step 6

Step 7


15

LOAD CLASS

Unfortunately, for historical, application variances andmaterial specific applications, there is not one standardwith universal Load Class criteria that covers all buildingproducts and applications - which can be quiteconfusing for the specifier.

ACO Building Drainage consciously decided to developthe Modular 125 channel system to conform toappropriate European standards in order to provide thespecifier with confidence to specify products that willoffer known reliable performance criteria.

The Modular channel system has been tested inaccordance with BS EN 14331 and complementarygully systems to BS EN 12532.

Because the generalnature of the twotypes of product isdifferent for manyapplications, the LoadClass criteriadescribed in bothstandards aredifferent. However, inthe table below apractical approximatecomparison is provided to aid the specifier selectproducts appropriate to the application.

BS EN 1433 Slow Moving Wheel

Application (Drainage Channels) & BS EN 1253 FACTA Load Load (Tonnes)

Icon BS EN 124 (Gullies for Class Pneumatic Solid

(Manhole & Gully Tops) Buildings) (All products) Tyres Tyres

- H1.5 - Non-load bearing

A15 K3 A 0.5 N/A

- L15 AA 1.5 N/A

- AAA 2.5 0.5

B125 M125 B 5.0 0.75

C250 C 6.5 1.0

D400 D 11.0 3.0

E600 E 16.0 5.0

Standards references:

1BS EN 1433 - Drainage channels for vehicular andpedestrian areas.2BS EN 1253 – Gullies for buildings.

Other useful references:

BS EN 124 - Gully tops and manhole tops forvehicular and pedestrian areas.

FACTA specification viahttp://www.facta.org.uk/specification.pdf

ACO Modular 125 - Technical Data and Accessories

16

Spigot Outlets

500mm End Outlet

Description Part No Invert (A) Flow Rate* Weight

AISI 304 mm l/s kg

500mm End Spigot Outlet 105175 50 1.2 2.6

105176 65 1.2 2.8

105177 80 1.2 3.1

105178 95 1.2 3.3

105179 110 1.2 3.5

105180 125 1.2 3.7

1000mm End Outlet


AISI 304 mm l/s kg

1000mm End Spigot Outlet 105183 50 1.2 4.2

105184 65 1.2 4.6

105185 80 1.2 5.0

105186 95 1.2 5.4

105187 110 1.2 5.8

105188 125 1.2 6.2

* Assumes use of in-line foul air trap, Part Number 401221.

TECHNICAL DATA - OUTLET OPTIONS

Ø110

75500153

125

A13

115

70

Ø110

1000

75125

153

A13 11570

Notes:

ACO Modular 125 available in 316 grade stainless steel to order.

Contact ACO Building Drainage Helpline on 01462 816666 or e-mail [email protected] for further details.


17


Spigot Outlets

500mm Centre Spigot Outlet


AISI 304 mm l/s kg

500mm Centre Spigot Outlet 105191 50 1.2 2.7

105192 65 1.2 2.9

105193 80 1.2 3.1

105194 95 1.2 3.3

105195 110 1.2 3.5

105196 125 1.2 3.7

1000mm Centre Outlet


AISI 304 mm l/s kg

1000mm Centre Spigot Outlet 105199 50 1.2 4.2

105200 65 1.2 4.6

105201 80 1.2 5.1

105202 95 1.2 5.4

105203 110 1.2 5.8

105204 125 1.2 6.2

* Assumes use of in-line foul air trap, Part Number 401221.

500

250

Ø110

153

125

A13

115

70

1000

500

Ø110

115

125

153

A13

70

Notes:




18

Spigot Accessories

Sediment Basket

Description Part No Weight

Sediment Basket 21510 0.1Kg

Sieve


Sieve 97235 0.1Kg

Ø110mm Outlet Trap

Description Flow Rate l/s Part No Weight

110mm Outlet Trap 1.2 97217 0.3Kg

Ø77

91,5

Ø103,5

5mm

5

Ø104,5

A

A

9185

Ø108,5mm

51m

m


Notes:




19


Gullies

Leisure Discreet Gully – Vertical

Description Part No A B Flow Rate* Weight

AISI 304 mm mm l/s kg

Leisure Discreet Vertical Gully 105240 65 218 2.0 4.1

105241 95 248 2.3 4.6

105242 125 278 2.5 5.2

Optional Sieve – Vertical Outlet 23650 - - - 0.3

Leisure Discreet Gully – Horizontal

Description Part No A B C Flow Rate* Weight

AISI 304 mm mm mm l/s kg

Leisure Discreet Horizontal Gully 105236 65 218 182 1.5 4.3

105237 95 248 212 1.6 4.7

105238 125 278 242 1.8 4.9

Optional Sieve – Horizontal Outlet 23650 - - - - 0.3

B

Ø110

500153125

115

B

A

97

115

70

500

Ø11

0 B

153125

A13

105

97

C

30

70

Notes:




20

Gullies

One Way Gully Top

Description Part No A B Weight

AISI 304 mm mm kg

One Way Gully Top 105228 65 155.5 4.1

105229 95 185.5 4.7

105230 125 215.5 5.7

Two Way Gully Top

Description Part No A B Weight

AISI 304 mm mm kg

Two Way Gully Top 105232 65 155.5 6.0

105233 95 185.5 7.1

105234 125 215.5 8.1

248

41

78

B

Ø184

248734

A

13

70

TECHNICAL DATA – GULLY OUTLET OPTIONS

486 248

1220

Ø184

B

78

248

41A

13

70

Notes:




21

TECHNICAL DATA – GULLY OUTLET OPTIONS

Gully Bodies (for use with one and two way gully tops)

Vertical Outlet Trapped

Description Part No Flow Weight

Vertical Outlet Trapped 05364 4.0l/s 4.5Kg

Vertical Outlet Trapped with Membrane Clamp


Vertical Outlet Trapped with Membrane Clamp 05376 4.0l/s 7.0Kg

Horizontal Outlet Trapped


Horizontal Outlet Trapped 05365 3.2l/s 3.9Kg

Horizontal Outlet Trapped with Membrane Clamp


Horizontal Outlet Trapped with Membrane Clamp 05377 3.2l/s 6.4Kg

400mm

X

X

200m

m

110mm200mm

160m

m

70m

m

300mmX

X

70m

m

200m

m

280m

m

110mm

200mm

400mm

280m

m

110mm

200mm

200m

m

X

X

70m

m

160m

m

70m

m

X

200m

m

110mm

X

300mm

200mm


22

TECHNICAL DATA – GULLY OUTLET ACCESSORIES

Gully Accessories

Sieve


Sieve 05839 0.25Kg

Sediment Basket Vertical Gully


Sediment Basket Vertical Gully 05835 0.2Kg

Sediment Basket Horizontal Gully


Sediment basket horizontal gully 05834 0.9Kg

‘O’ - Ring


‘O’ - Ring 05845 0.1Kg

Drainage Ring


Drainage Ring 05842 0.1Kg

Ø175

90 ±

2

Ø178 16,5

Ø175

213

±2

Ø245/185


23

TECHNICAL DATA – CHANNEL UNITS

Channel Units and Accessories

Level Invert Channels

Description Part No L A Weight

AISI 304 mm mm kg

500mm Long Level Invert 105119 500 50 2.3

105120 500 65 2.5

105121 500 80 2.7

105122 500 95 2.9

105123 500 110 3.1

105124 500 125 3.4


105128 1000 65 4.2

105129 1000 80 4.6

105130 1000 95 5.0

105131 1000 110 5.4

105132 1000 125 5.8


105136 2000 65 7.9

105137 2000 80 8.6

105138 2000 95 9.5

105139 2000 110 10.4

105140 2000 125 11.2


105144 3000 65 11.3

105145 3000 80 12.4

105146 3000 95 13.5

105147 3000 110 14.6

105148 3000 125 15.7

All channels are supplied complete with levelling feet, fixing ties, neoprene gaskets and fixings.

A

125

153

L

13

97

70

Notes:




24

Sloping Invert Channels

Description Part No L A B Weight

AISI 304 mm mm mm kg

500mm Long Sloping Invert 105151 500 50 65 2.4

105152 500 65 80 2.5


105156 1000 65 80 4.4

105157 1000 80 95 4.8

105158 1000 95 110 5.2


105162 2000 65 80 8.2

105163 2000 80 95 8.9

105164 2000 95 110 9.7

105165 2000 110 125 10.5


105169 3000 65 80 11.8

105170 3000 80 95 12.9

105171 3000 95 110 14.0

105172 3000 110 125 15.1


125

153

A B

13

L97

70

TECHNICAL DATA – CHANNEL UNITS


Notes:




25

TECHNICAL DATA – CORNER & BRANCH UNITS

500mm Corner Unit – Right Hand

Description Part No Invert Weight

AISI 304 (A) mm kg

500mm Corner Unit Right Hand 105207 50 3.9

105208 65 4.3

105209 80 4.7

105210 95 5.1

105211 110 5.5

105212 125 5.8

500mm Corner Unit – Left Hand


AISI 304 (A) mm kg

500mm Corner Unit Left Hand 105214 50 4.0

105215 65 4.3

105216 80 4.8

105217 95 5.1

105218 110 5.5

105219 125 6.3

500mm Branch Unit


AISI 304 (A) mm kg

500mm Branch Unit 105221 50 3.9

105222 65 4.3

105223 80 4.7

105224 95 5.1

105225 110 5.4

105226 125 5.8


639

514 500

639

514

A13

15312597

70

639

153125

A13

9770

500250

A1370



26

End Plates

End Plates

Description Part No Invert B Weight

AISI 304 (A) mm mm kg

End Plates 105100 50 63 0.2

105101 65 78 0.2

105102 80 93 0.2

105103 95 108 0.24

105104 110 123 0.26

105105 125 138 0.29

All end plates are supplied complete with, neoprene gaskets and fixings.

Accessories

PVC Infill accessory is inserted into the underside of the visible edge of the drainage channel and associatedcomponent sections. PVC Infill can be site fitted or factory fitted if required. This accessory is recommendedwhen the installation is subject to wheeled loadings from trolleys or vehicles to prevent damage to the visibleedge of the drainage channel.

PVC Infill

Description Part No Weight per metre Unit

PVC Infill 26270 0.5 Per channel metre

14

1,5B A

153

Ø7

3

TECHNICAL DATA – END PLATES & ACCESSORIES

PVC infill

Notes:




27

TECHNICAL DATA – ACCESSORIES & SECURITY

ACO Building Drainage Vinyl Seal®

Description Part No Unit

Flexible PVC Seal 49062 * per metre

Rigid PVC Extrusion 49061 * per metre

* Double quantity required for each channel metre

Grating Lockings & Security

For applications where locked gratings are required, the Modular 125 channel system can be supplied with twofactory fitted anti-vandal options: Standard Locking (activated by a conventional hexagon wrench) and SecurityLocking (activated by a security wrench).

Description Part No Unit

Standard Channel Locking (Linear Metre) 26310 per metre channel run

Security Channel Locking (Linear Metre) 26320 per metre channel run

Channel Grating Locking (Linear Metre) 26340 per metre channel run

Security Gully Grating Locking 26350 per gully top

Standard Gully Grating Locking 26360 per gully top

Hexagon Wrench 5 mm A/F (Standard) 46876 each

Hexagon Wrench 5 mm A/F (Security) 46786 each

Notes:

1. All locking options are factory fit only.

2. Channel systems required with locking accessory requires appropriate locked grating option as described onpages 28 to 32. Standard gully gratings will be modified at the factory for locking as required.

3. Channel locking kit includes locking studs applied to channel, locking bar and screw fixing (standard orsecurity).

4. Appropriate standard or security locking wrench to be ordered separately as listed above.


28

Gratings

Slip Resistant Mesh

Description Part No A mm BS EN 1433 Finish Weight kg

AISI 304 Load Class

Slip Resistant Mesh Grating 21610 1000 A15 Electro Polished 3.0

21710 500 A15 Electro Polished 1.6

21810 1000 C250 Electro Polished 4.2

21910 500 C250 Electro Polished 2.2

Plain Mesh


AISI 304 Load Class

Plain Mesh Grating 21620 1000 A15 Electro-polish 3.0

21720 500 A15 Electro-polish 1.6

21820 1000 C250 Electro-polish 4.2

21920 500 C250 Electro-polish 2.2

Ladder


AISI 304 Load Class

Ladder Grating 21741 1000 C250 Pickled 3.4

(Reversible Plain or Slip Resistant) 21740 500 C250 Pickled 2.0

A

20mm

123m

m

20mm

123m

m

20mm

123m

m

33mm

20mm

A Class C Class

A

23x23mm

123m

m

20mm

123m

m

33mm

20mm

A Class C Class

A

23x23mm

2 2

TECHNICAL DATA – CHANNEL GRATINGS

Notes:




29


Heelsafe


AISI 304 Load Class

Heelsafe Grating 96818 1000 B125 Linished 3.4

96819 500 B125 Linished 2.0

Heelsafe Locked*


AISI 304 Load Class

Heelsafe Grating Locked* 402071 1000 B125 Linished 3.4

402072 500 B125 Linished 2.0

* Locking recess in grating provided as standard. For locked perforated gratings in channel, refer to Page 27 details.

Perforated Locked*


AISI 304 Load Class

Perforated Grating Locked* 105504 1000 C250 Pickled 3.6

105505 500 C250 Pickled 1.8

* Locking recess in grating provided as standard. For locked perforated gratings in channel, refer to Page 27 details.

Slotted Locked


AISI 304 Load Class

Slotted Grating Locked* 105518 1000 A15 Pickled 2.0

105519 500 A15 Pickled 1.0

105520 1000 C250 Pickled 4.7

105521 500 C250 Pickled 2.3

* Locking recess in grating provided as standard. For locked slotted gratings in channel, refer to Page 27 for details.

1.5

122.5

21.032.0A

A

20mm

123m

m7m

m5m

m

A

123m

m

250mm 250mm

20mm 7mm

123

20

2

A

7

Gratings



30

Plastic Grating


AISI 304 Load Class

Plastic Grating 21690 1000 A15 White 1.2

21790 500 A15 White 0.6

Composite Grating*


AISI 304 Load Class

Composite Grating 15704 500 C250 Black 1.2

10735 500 C250 White 1.2

* Locking recess in grating provided as standard. For locked slotted gratings in channel, refer to Page 27 for details.

Quadrato


AISI 304 Load Class

Quadrato Grating 105529 1000 A15 Linished 3.2

105530 500 A15 Linished 1.6

Quadrato grating (Locked*) 105527 1000 A15 Linished 3.2

105528 500 A15 Linished 1.6

Intercept


AISI 304 Load Class

Intercept Grating 105538 1000 A15 Linished 3.6

105539 500 A15 Linished 1.8

Intercept Grating (Locked)* 105536 1000 A15 Linished 3.6

105537 500 A15 Linished 1.8

Grating Locking and Security

* Refer to Page 27 for grating locking and security details.

123 mm

21 mm8 mm

31 mm

Ø 9 mm

250 mm 250 mm

123

20A

250 2506mm

123m

m

20mm

A

25mm

Gratings

123

20

250 250

22m

m

A



31

Gully Gratings

Slip Resistant Mesh

Description Pat No AISI 304 BS EN 1253 Load Class Finish Weight kg

Slip Resistant Mesh 05919 M125 Electropolished 2.0

Plain Mesh


Plain Mesh 05921 M125 Electropolished 2.1

Perforated


Perforated 42115 L15 Pickled 1.6

Solid


Solid 42116 L15 Pickled 1.7


Refer to Page 27 for grating locking and security details.

40m

m

218m

m

23mm 3mm

218mm

23m

m

40m

m

23mm 3mm

218mm

218m

m

23m

m

40m

m

218m

m

218mm

7mm

40m

m

218mm

218m

m


32

TECHNICAL DATA – GULLY GRATINGS

Ladder


Ladder 401692 M125 Pickled 4.0

(Reversible Plain or Slip Resistant)

Weir


Weir 42118 M125 Pickled 4.3

Heelsafe


Heelsafe 96884 L15 Linished 2.2


Refer to Page 27 for gully grating locking and security details.

40m

m

218m

m

218mm

X

X 7mm

7mm 5mm

40m

m

10m

m

198mm

218m

m

40m

m

218mm

218m

m

20m

m5m

m

Gratings

Notes:




33

MODULAR SYSTEM ASSEMBLY INVERTS

B

A25

mm

min

Ø110mm

80m

m

H

DC

AØ

110m

m

25m

m m

in.

HOne-Way & Two-way Gully Tops withVertical Gully Outlet

H = 65mm H = 95mm H = 125mm

A Min 78 108 138

A Max 130 160 190

B Min 338 368 398

B Max 390 420 450

One-Way & Two-way Gully Tops withHorizontal Gully Outlet

H = 65mm H = 95mm H = 125mm

A Min 78 108 138

A Max 130 160 190

C Min 236 266 296

C Max 288 318 348

D Min 258 288 318

D Max 310 340 370

ACO Modular 125 - Installation

34

GULLY AND CHANNEL INSTALLATION

Step 1 Base Preparation

Prepare base with 100mm compacted Type 1 fill.

Sept 2 Gully Positioning

Position gully bodies and measure for shuttering andoversite concrete level.

Step 3 Construct Shutters

Construct shutters, position and mark concrete level.Leaving the shutters long allows easy removal afterconcrete pour.

Step 4 Pour Concrete

Pour concrete slab and leave for 24 hours beforeremoving shuttering.

Step 4 (Continued)

Keep pipework clear of loose materials.

Step 5 Re-Position Gully

Position gully(s) and check levels. Keep loosematerials clear of gully.

Basic Instructions – details may vary depending upon application


35

GULLY AND CHANNEL INSTALLATION

Step 6 Backfill Gullies

Backfill gullies with concrete and float to flange level.

Step 7 DPM

Fit DPM and clamp in flange as appropriate.

Step 8 Channel Assembly

Loose assemble gullies, channel sections and joint gaskets.Leave spacer bars intact until channel has beencompletely installed. Loose assemble gullies, channelsection and joint gaskets in drainage run ensuringcompatibility of adjacent channels, position and level beforefinal tightening of all joints. For Load Class C250applications, allow 200mm either side and under thechannel for concrete backfill support, where this is notpossible, seek engineering advice. For Load Class A15 andB125 applications, allow for a minimum of 30mm ofbedding material and approximately 50 – 100mm either side

of the channel to allow access to levelling feet, fixing ties andflange plates. Prior to bedding and haunching, check jointsand traps for water tightness.

Step 8 Form Levelling Screed Shuttering

Taking into account finished floor materials and thickness(sharp sand, paviors, tiles, vinyl etc) construct shuttering forthe levelling screed. Pour screed and remove shuttering.

Weigh the channels down when back filling the trench toprevent the channels from lifting or floating. Fully extendand twist channel fixing ties to provide a good anchorage.Pour suitable cement or resin mortar around the channel.The mortar should be of a type and consistency to ensurethere can be a good compaction of this material both underthe channel base and particularly under the channel edge.

The bed and surround must have sufficient strength tosupport the channel in service. For light and medium dutyapplications up to Load Class C250, a suitable mortar ofStrength Class C30/37 to BS EN 206-1 with a maximumaggregate size of 10mm should be used.

Where it is not possible to provide the depth of surround asprescribed in Step 2, a suitable mortar of Strength Class atleast C35/45 to BS EN 206-1 with a maximum aggregatesize of 10mm may be used to support the channel

following engineering advice.

Step 8 (continued)

Remove immediately from the inside surfaces of thechannel (or gully) any mortar or concrete spillage.

For channels with vinyl edge detail, refer to pages 37-38.


36

CHANNEL INSTALLATION PROCEDURE

Step 9a – Block Pavior Finish

Prepare screed base working mix under channel andgully top flange and lay block paviors on 300mmwide epoxy surround to prevent movement. Setpaviors 3mm maximum above channel edge.Complete paviors on compacted sharp sand bed.

Step 9b – Tile Finish

Prepare haunching on screed base working mix underchannel and gully top flange. Lay levelling screed andlay tiles in cement bedding.

Step 9c – Flexible Sheet Finish

Fit the ACO Vinyl Seal® rigid extrusion and flexibleseal system to channel and gully edge as describedon pages 37-38. Prepare haunching

Step 10 – Sealing

A mastic sealant should be provided between theedge of the channel and floor typically 8 – 10mmwide and 10 – 15mm deep.

In some cases it may be necessary to apply asuitable primer to the stainless steel before applyingthe sealant. The sealant manufacturers’ advice shouldbe sought for each individual application.

Step 11 – Grating Installation

Spacing bars with the channel are provided to givestiffness and rigidity during manufacture, sitehandling and installation. They also prevent closureof the grating aperture during the concreting phase ofinstallation.

These bars should be left in position untilimmediately before the gratings are inserted in place.The spacer bars may be removed by striking themwith a sharp horizontal blow with a mallet.

Step 12 – Cleaning

Remove all protective tape from the channel edgeand clean the surface with a solvent if necessary toremove any adhesive residue.

Wash and clean the channel, empty the silt basketand refit the gratings.

Cutting and Welding On-siteIt is not easy to work with stainless steel on site, asthe material is particularly hard and special cuttingequipment is needed. Similarly if stainless steel iswelded on site then care should be taken to ensurethat all welded surfaces are properly finished eitherby hand, or with an acid finishing.

It may not be possible to achieve a uniform surface appearance or guarantee full passivation of the weld in these circumstances. Hence finishingunder factory conditions will be far superior in this respect.


37

ACO BUILDING DRAINAGE VINYL SEAL®

Sealing Vinyl Sheet Flooring to

Drainage Channels and GulliesVinyl sheet is a common flooring finish in many ofthe areas where stainless steel drainage channels andgullies are required. Previously the standard methodof jointing the two was by a mechanical clampingsystem.

Although functional, this mechanical clampingmechanism can be cumbersome to fit and increasethe potential areas for bacterial growth.

In order to overcome the frequently encounteredproblems of achieving watertight and bacteria freeseals, ACO have developed the ACO BuildingDrainage Vinyl Seal® a unique solution that willenable quick, easy and economical installation. ACOBuilding Drainage Vinyl Seal® provides a completelywatertight and bacteria free seal.

This method of sealing requires no additional tools orskills other than those required for the professionalfitting of vinyl sheet flooring, making the installationquick, easy and economical.

The seal is significantly more cost effective than thetraditional mechanical type and is designed to fit ACOBuilding Drainage stainless steel drainage channels.

Step 1

Remove channelprotective tape priorto fixing extrusion.

Step 2

Cut grey rigidextrusion to suitensuring any mitresare cut accurately otherwise pressure points mayappear in the finished fioor in use.

Step 3

Using Sheet PlierGrip Wrenchsupplied, clip thevinyl seal rigidextrusion tounderside of channel

Step 4

Where there are jointplates in the channelrun cut a notch out ofthe rigid extrusion asshown to enable theextrusion to beclipped to the underside of the channel.

Step 5

Here you can see therigid extrusion cut tosuit and fitted prior tothe fitting of theblack flexible seal.

Step 6

Insert the blackflexible seal asshown, making surethat the curvedconcave section ofthe seal facesTOWARDS thechannel edge and that the groove in the flexible sealengages with the notch on the rigid extrusion. (It mayhelp to lubricate the flexible seal when inserting usinga water soluble soapy solution).

Channel Edge Flexible seal Heat welded jointVinyl sheet flooring(2-4mm thick) Floor adhesive

(Patent applied for)

Rigid seal extrusion


38

ACO BUILDING DRAINAGE VINYL SEAL®

Step 7

Using the Sheet PlierGrip Wrench,proceed along thechannel inserting theflexible seal.

Step 8

As can be seen whenfitting around acorner, the flexibleseal may be kept inone piece tominimise joints.

Step 9

Here you can see therigid extrusion andflexible seal fitted priorto screeding / backfilling.

Step 10

Install the channel into the ground ensuring theflooring screed is flush to the top edge of the rigidextrusion. Protect the channel & seal assembly fromsplashes of concrete or screed.

Step 11

Depending on the installation, additional suitablefixings may be required to secure the rigid extrusionto the floor substrate. If this should be required,separately drill and countersink the rigid extrusionmaking sure all the fixings are finished flush with thetop of the extrusion.

Step 12

Grout any voids at connecting PVC joints and mitredcorners straight joints or fixings to ensure acontinuous fully supported finish.

Step 13

Prior to laying the vinyl sheet flooring, peel theprotective film from the rigid extrusion (a knife maybe required to cut the film adjacent to the flexibleseal) and ensure all surfaces are clean and dry.

Step 14

When preparing the vinyl sheet material and floorsurface, apply a compatible adhesive also to the topsurface of the rigid extrusion e.g. Altrofix 19 two partwater resistant eurethane adhesive. taking care not toapply adhesive to the flexible seal. This is to ensurethe vinyl sheet floor is reliably anchored over its fullarea.

Step 15

Lay the sheet flooring against the flexible seal edgeand prepare the welded joint between the flexibleseal and vinyl sheet flooring as normal by scoring thesheet/seal joint to approximately half the depth of thesheet flooring thickness .

Either in-colour or black welding filler rod may beused to weld the joint. Remove surplus weld materialfrom the joint using a spatula when the welded jointhas cooled.


39

CARE AND MAINTENANCE

Although robust, all grades of stainless steel will stainand discolour due to surface deposits and, as such, can never be accepted as completelymaintenance free. In order to achieve maximumcorrosion resistance, the surface of the stainless steelmust be kept clean. Provided the grade of stainlesssteel and the surface finish are correctly selected,and cleaning schedules carried out on a regularbasis, excellent performance and long service life areassured.

Factors Affecting MaintenanceSurface contamination and the formation of depositsmust be prevented in order to maintain a durable andhygienic surface.

These deposits may be minute particles of iron orrust from other sources used on the building of newpremises and not removed until after the stainlesssteel drainage products have been installed. Wirebrushes and wire wool must not be used to removemarks and cement spillages as this will only serve tointroduce iron impurities to the material surface. Caremust also be taken when storing, erecting or cuttingcarbon steel near to stainless steel.

Industrial and even naturally occurring atmosphericconditions can produce deposits which can beequally corrosive, e.g. salt deposits from marineconditions.

The working environment can offer more aggressiveconditions, for example the high humidity found inswimming pools increases the speed of discolourationand therefore requires maintenance on a morefrequent basis.

Modern processes use many cleaners, sterilisers and bleaches for hygienic purposes. All theseproprietary solutions, when used in accordance withmakers instructions are safe, but if used incorrectly(e.g.warm or concentrated) can cause discolourationand corrosion on the surface of any quality ofstainless steel.

Strong acid solutions are sometimes used to cleanmasonry and tiling of buildings but they should neverbe permitted to come into contact with metals,including stainless steel. If this should happen theacid solution must be removed immediately bycopious application of water.

Maintenance ProgrammeWith care taken during fabrication and installation,cleaning before handing over to the client shouldpresent no special problems, although more attentionmay be required if the installation period has beenprolonged.

Where surface contamination is suspected,immediate attention to cleaning after site fixing will encourage a trouble free product.

Food and beverage handling, pharmaceutical and chemical industry applications require extremelyhigh levels of cleanliness applicable to each industry.

Advice is often sought concerning the frequency of cleaning stainless steel and the answer is quitesimple: clean the metal when it is dirty in order torestore its original appearance. This may vary fromonce to four times a year for external applications orit may be once a day for an item in hygienic oraggressive situations.

Frequency and cost of cleaning is lower with stainlesssteel than with many other materials, and will often outweigh the initial higher cost of thissuperior product.


40

CARE AND MAINTENANCE

Cleaning MethodsThe Modular system components are easy to clean.Washing with soap or a mild detergent and warmwater followed by a clear water rinse is usually quiteadequate for most applications. An enhancedaesthetic appearance will be achieved if the cleanedsurface is finally wiped dry.

PrecautionsAcid cleaners should be used for cleaning, only whenother methods have proved unsatisfactory.Manufacturers directions should be followed.

Routine cleaning, all finishes.

and materials

Soap or mild detergent and water (such

as washing up liquid).

Sponge, rinse with clean water, wipe

dry if necessary.

Fingerprints, all finishes. Soap or warm water or organic solvent

(e.g.acetone, alcohol).

Rinse with clean water, wipe dry

if necessary.

Stubborn stains and discolouration. Mild cleaning solutions (e.g. Jif,

Goddard Stainless Steel Care).

Rinse well with clean water and

wipe dry.

Oil and grease marks, all finishes. Organic solvents (e.g. acetone, alcohol). Clean after with soap and water, rinse

with clean water and dry.

Rust and other corrosion products. Most mild corrosion and staining effects

can be removed by application of

commercially avaliable metal polishes.

Check manufacturer’s details before use

Rinse well with copious amounts of

clean water (precautions for acid

cleaners should be observed).

Scratches on brushed finishes. Household synthetic fibre scouring pads

(e.g. Scotch Brite fibre pad).

Apply in direction of brushed finish.

Clean with soap or detergent as per

routine cleaning.

Never use ordinary steel wool as iron

particles can become embedded in the

surface being cleaned and cause

corrosion problems.

Problem Cleaning Agent Comment

Always read instructions on proprietry cleaning agents.


41

Stainless steel is the name given to a wide range ofsteels which have the characteristics of greatlyenhanced corrosion resistance over conventional mildand low alloy steels.

The enhanced corrosion resistance of stainless steelessentially comes from the addition of at least 11%chromium, however most stainless steels commonlyused contain around 18% chromium. Othersignificant alloying elements include nickel and forsuperior corrosion resistant properties, molybdenum.

For ACO Building Drainage applications, the principalproperties of stainless steel may be summarised asfollows:

4 Durable and corrosion resistant in highlyaggressive environments.

4 Hygienic, easily cleaned surfaces.

4 Aesthetically attractive surface finish.

4 Good forming and fabrication characteristics.

4 Excellent strength and resistance tooxidisation at high temperatures.

All of which make stainless steel an obvious firstchoice material for demanding applications.

Stainless Steel FamiliesStainless steel is used across a wide spectrum ofengineering applications and this has led to thedevelopment of the vast range of different types ofstainless steels that are now available. There are fourmain grades of stainless steel:

Austenitic Stainless Steels

This group of stainless steels is the most widely usedand encompasses the generic 304 and 316 grades ofmaterial. These materials are used in the ACOBuilding Drainage manufacturing process and areideal for applications including food processing,leisure, dairy, brewing, pharmaceutical,chemical and petrochemical industries.

304 grade stainless steels contain around 18%chromium and 10% nickel and provides excellentcorrosion resistance. For applications where superiorcorrosion resistance properties are required underextreme conditions particularly where chlorides areinvolved, 316 grade stainless steels are used andcontain around 17% chromium, 12% nickel and 2.2%molybdenum.

Unlike all other grades of stainless steels, austeniticgrades are non-magnetic and as a consequencemagnetic particles are not attracted to the systemsurfaces which otherwise would encourage bothcontamination and corrosion.

Ferritic Stainless Steels

Ferritic stainless steels have inferior corrosionresistance properties compared to austenitic 304 and316 grades and are used in less demandingapplications such as domestic appliance and motorcar trim.This grade of stainless steel is slightly morebrittle when compared to austenitic grades.

Ferritic steels contain between 11.5% and 16.5%chromium and less than 0.5% nickel. This group ofsteels are magnetic and will attract particulateswhich can cause contamination problems. Ferriticsteels are not suitable for drainage products.

FAMILIES

ACO Modular 125 - Stainless Steel

42

FAMILIES AND CORROSION RESISTANCE

Martensitic Stainless Steels

Martensitic steels are magnetic and have the higheststrength of the groups of stainless steels, howeverthey also have the poorest corrosion resistance. Theycan be hardened by heat treatment and generally findtheir main application in cutlery manufacture.

Martensitic steels contain around 12.5% chromiumand contain a relatively high carbon content of 0.3%(austenitic and ferritic steels contain around 0.02%and 0.04% carbon respectively).

Martensitic steels’ poor corrosion resistance makethem unsuitable for drainage applications.

Duplex Stainless Steels

Duplex stainless steels have an effectiveaustenitic/ferritic structure and are characterised by good corrosion resistance, high strength and inparticular, good resistance to stress corrosioncracking.

Duplex steels contain around 22% chromium, 5.5%nickel, 3% molybdenum and 0.02% carbon. Thisgroup of steels are magnetic and will attractparticulates which can cause contamination problemsand therefore are unsuitable for drainageapplications.

Stainless Steel Corrosion

ResistanceThe single most important property of stainless steelsand the reason for their existence and widespreaduse, is their natural corrosion resistance. In spite oftheir name, stainless steels can both ‘stain’ andcorrode if used incorrectly.

The reason for the good corrosion properties is due to the formation of a very thin, invisible oxidefilm that forms on the surface of the material inoxidising environments such as the atmosphere andwater.

This film is a chromium-rich oxide which protects thesteel from attack in aggressive environments. Aschromium is added to a steel, a rapid reduction inthe corrosion rate is observed because of thisprotective film. In order to obtain a compact andcontinuous passive film, a chromium content of atleast 11% is required. Passivity increases fairlyrapidly with increasing chromium content up to about17% chromium.

The most important alloying element is thereforechromium, but a number of other elements includingnickel, molybdenum and nitrogen also contribute tothe corrosion resistance properties of stainless steels.Other alloying elements may also be added toenhance the corrosion resistance in particularenvironments.

Stainless steels must oxidise in order to form thepassive, chromium-rich oxide film. Stainless steelshave a very strong tendency to passivate and only asmall amount of oxidising agents are needed forpassivation - air and water are sufficient to passivatestainless steels and indeed, this oxide film isspontaneously regenerated when exposed to oxygen.An important factor to note is that the passive film isself-healing, so when the material is cut or machinedor, should chemical or mechanical damage occur, thepassive film will ‘heal’ or re-passivate in oxidisingenvironments - unlike a painted finish on mild steel.

Selection of the correct grade of material for eachapplication is an important factor in the designprocess. It is important to note that even 316 gradesof stainless steel are not immune to all kinds ofchemical attack; use with reducing solutions such ashydrochloric and sulphuric acids particularly when inconcentrated and/or hot form, requires carefulconsideration. See corrosion resistance chart onpages 45 and 46.


43

Stainless Steel Finishing

ProcessesA stainless steel finish should appear clean, smoothand faultless. This is obvious when the steel is usedfor such purposes demanding stringent hygiene ordecorative trim applications, but a fine surface finishis also crucial in respect to its corrosion resistantproperties.

The corrosion resistance properties of stainless steelare achieved by the spontaneous formation of a verythin chromium-rich oxide layer over the surface of thematerial. Unfortunately, surface defects andimperfections introduced during the manufacturingprocess may drastically disturb the self healing processof the passive layer and subsequently reduce thecorrosion resistance of the material. In themanufacturing process it is the welding that createsthe greatest challenge to corrosion resistance. All ACOBuilding Drainage products are subjected to specialisedtreatment to ensure the material retains the maximumresistance to corrosion.

Pickle Passivation Plant

ACO resources include the largest pickle passivation plant in Europe

After welding stainless steel, a bluish hightemperature oxide film can be seen which hassubstantially inferior corrosion protection propertiescompared to the original passive layer. Immediatelybeneath this blue oxide film is a thin layer ofchromium depleted metal which makes the metalsurface susceptible to corrosion. Post weld treatmentis, therefore, very important to restore the corrosionprotection properties and is effectively achieved byremoving the blue high temperature oxide film andchromium depleted layer to restore the surface of thematerial. This ‘cleaning’ is essentially a controlledcorrosion process using chemicals, this will restorenot only its original corrosion resistance performancebut also the high quality aesthetics.

The chemical processing methods used in the ACO Building Drainage process are summarised asfollows:

FINISHING PROCESSES

Untreated Stainless Steel

The blue oxide film has substantially reduced corrosionresistance.


44

FINISHING PROCESSES

Pickle Passivation

The standard ACO Building Drainage manufacturingprocess uses the pickle passivation chemical finishingprocess to restore the products to their full optimumcorrosion resistant state without damaging the surfacefinish. This is considered the best method for cleaningwelded joints.

Pickle passivation is a two-phase process.

Pickling removes both the bluish high temperatureoxide film and the chromium depleted layer and isachieved by placing the components in a picklingbath containing a mixture of nitric acid andhydrofluoric acid.

The second phase is passivation and in many ways issimilar to the pickling process. For this process thecomponents are placed in a bath containing nitricacid only. This treatment strengthens the passivelayer and also removes any iron impurities that mayhave become embedded in the surface of the stainless steel during the manufacturingprocess.

This treatment is important where mechanicalcleaning of the components has taken place with theuse of wire brushes, grinding wheels and files whereiron particles from other materials may contaminatethe stainless steel surface.

Electropolishing

Electropolishing is ideal for producing a uniform,highly reflective lustre with an extremely smoothfinish even on the most complex product contours.This is a well proven method of polishing and isachieved by an electro-chemical process which isessentially the reverse of electroplating.

The components are immersed in a bath ofelectrolyte containing phosphoric acid where thecomponents become the anode of a direct currentelectrical circuit. The process is characterised by theselective attack on the surface of the componentswhereby upstanding roughnesses are preferentiallydissolved and will yield a progressively smoother,brighter surface.

For pharmaceutical and food processingindustries, bacterial resistance is considerablyimproved by the electropolishing process.

Certain gratings within the ACO Building Drainagerange are electropolished as standard. All stainlesssteel products can be electropolished if required tospecial order.

Pickle Passivation Process.

Pickle Passivation restores corrosion resistance properties fully.

Electropolishing.

Electropolishing further enhances surface smoothness andprovides a brighter surface appearance.


45

CORROSION RESISTANCE CHART

Reagent Stainless Stainless EPDM Neoprene VitonSteel Steel Gasket Gasket304 316

Acetic Acid 20% l l l ? l

Acetic Acid 80% l l l x l

Acetone l l l l xAlcohol (Methyl or Ethyl) l l l l ?Aluminium Chloride ? ? l l l

Aluminium Sulphate l l l l l

Ammonia Gas (Dry) l l ~ l ~Ammonium Chloride ? ? l l l

Ammonium Hydroxide l l l l l

Ammonium Nitrate l l l l l

Ammonium Phosphate l l l l l

Ammonium Sulphate ? l l l l

Ammonium Sulphide l l ~ ~ ~Amyl Chloride l l x ~ ?Aniline l l ? x l

Barium Chloride l l l l l

Barium Hydroxide 10% ~ ~ l l l

Barium Sulphate l l l l l

Barium Sulphide ~ ~ l l l

Beer l l l l l

Beet Sugar Liquors l l l l l

Benzene l l x x l

Benzoic Acid l l x l l

Bleach -12.5%Active C1 ~ ~ l x xBoric Acid l l l l l

Bromic Acid ? ? ~ ~ ~Bromine Water x x ~ x ~Butane l l x l l

Calcium Carbonate l l l l l

Calcium Chloride x ? l l l

Calcium Hydroxide ? l l l l

Calcium Hypochlorite x ? ? x l

Calcium Sulphate l l l ~ l

Cane Sugar Liquors ~ ~ l l l

Carbon Acid ~ ~ l l l

Carbon Bisulphide l l x x l

Carbon Dioxide l l l l l

Carbon Monoxide l l l l l


Carbon Tetrachloride ? ? x x l

Caustic Potash l l l ~ l

Caustic Soda l l l l l

Chloride (Dry) ? ? l x l

Chloride (Wet) x x x x ?Chloraocetic Acid ~ l ? x l

Chlorobenzene l l x x l

Chloroform ? ? x x l

Chrome Acid 50% x x ? x l

Chromic Acid 10% l l x x l

Citric Acid ? l l l l

Copper Chloride x x l l l

Copper Cyanide l l l l l

Copper Nitrate l l ~ l l

Copper Sulphate l l l l l

Cottonseed Oil ~ ~ x l l

Cresol ~ ~ x x xCyclohexanone ? l l x xCyclorexanol ~ ~ x l x

Dimethyleanine ~ ~ ? l l

Dionylphalate ~ ~ ? x xDisodium Phosphate ~ ~ l x l

Distilled Water l l l l l

Ethyl Acetate l l ? x xEthylene Chloride l l x x ?Ethylene Glycol l l l l l

Fatty acids (Cb) l l x ? l

Ferric Sulphate l l l l l

Fluorene Gas (wet) x x l x ?Formaldehyde (37%) l l l l l

Formic Acid (90%) x l l l ?Freon 12 l l l l l

Fruit Juices and Pulp ? l ~ l l

Furfural l l x x x

Gasoline (Refined) l l x l l

Glucose l l l l l

Glycerine l l l l l

The corrosion resistance information contained withinthis table is indicative only.

All data is based on reactions noted at an ambienttemperature of 20°C. Higher temperatures willgenerally reduce the corrosion resistance of thematerials.

Please contact ACO Building Drainage if guaranteesare required of specific material suitability.

We shall arrange for tests to be undertaken with thereagent to establish the chemical resistance of thematerials. Other gasket and sealing ring materials areavailable. Please contact us for further information.

l Recommended

? Suitable. However, contact ACO Building Drainage for further advice.

x Not recommended

~ No data available


46

CORROSION RESISTANCE CHART


Hydrobromic Acid (20%) x x l x l

Hydrochloric Acid (40%) x x x l l

Hydrocyanic Acid l l ? l l

Hydrogen Peroxide (90%) l l x x l

Hydroquinone ~ ~ x l l

Hypochlorous Acid ~ ~ x x l

Iodine x ? ? x l

Kerosene l l x l l

Lactic Acid 25% l l l l l

Linseed Oil l l x l l

Liqueurs ~ ~ ? x l

Magnesium Chloride ? ? l l l

Magnesium Sulphate l l l l l

Maleic Acid ? ? x x l

Methyl Chloride ? ? x x l

Methyl Ethyl Ketone ~ ~ l x xMilk l l l l l

Minerals Oils ~ ~ x l l

Muriatic Acid x x ? l l

Nickel Chloride ? ? l l l

Nickel Sulphate l l l l l

Oils and Fats l l ? ? l

Oleic Acid l l l ? l

Oleum ~ ~ x x l

Oxalic Acid ? ? l x l

Palmitic Acid 10% ~ ~ l x l

Perchloric Acid 10% x x ? l l

Perchloric Acid 70% x x ? x l

Petroleum Oils (Sour) l l x l l

Phenol 5% l l ? x l

Phosphorous Trichloride l l l x l

Photographic Solutions ? ? l l l

Picric Acid l l l l l

Plating Solutions ~ ~ ~ x l

Potassium Carbonate l l l l l

Potassium Chloride l l l l l

Potassium Cyanide l l l l l

Potassium Dichromate l l l l l

Potassium Hydroxide l l l l l

Potassium Permanganate l l l l l

Potassium Sulphate l l l l l

Propane Gas ~ ~ ~ ? l

Propyl Alcohol ~ ~ l l l


Sea Water x ? l l l

Sewage ? ? l l l

Silver Nitrate l l l l l

Silver Sulphate l l l l xSodium Bicarbonate l l l l l

Sodium Bisulphite l l l l xSodium Carbonate l l l l l

Sodium Cyanide l l l l l

Sodium Ferrocyanide ~ ~ ? l l

Sodium Hydroxide l l l l l

Sodium Hypochlorite ? l ? l l

Sodium Sulphate l l l l l

Sodium Sulphide ? l l l l

Sodium Sulphite ? l l l l

Sodium Thiosulphate l l l l l

Stannous Chloride ? ? x l l

Stearic Acid l l ? l l

Sulphite Liquor ~ ~ ? l l

Sulphurous Acid ? ? ? x l

Sulphur ? l ~ l l

Sulphur Dioxide (Dry) ? l l x l

Sulphur Dioxide (Wet) ? l l l l

Sulphuric Acid 50% x x ? l l

Sulphuric Acid 70% x x ? l l

Sulphuric Acid 93% x x ? x l

Tannic Acid l l l l l

Tanning Liquors l l l l l

Tartaric Acid ~ ~ ? l l

Toluene ~ ~ x x xTrichloroethylene l l x x xTriethanolamine ~ ~ l l xTrisodium Phosphate ~ ~ l l l

Turpentine l l x x l

Urea l l l l l

Urine l l l l l

Vinegar l l l l l

Water (Fresh) l l l l l

Water (Mine) l l l l l

Water (Salt) ? ? l l l

Whisky l l l l l

Wines l l l l l

Xylene ~ ~ x x x

Zinc Chloride x x l l l

Zinc Sulphate ? l l l l


47

A range of austenitic stainless steel linear drainagechannels and accessories with level and slopinginvert channels, gratings and accessories.

Suitable for linear drainage in changing rooms,

leisure, showers, wet rooms, kitchens, food andbeverage processing, hospitals and healthcare,abattoirs, chemical plant and washdown areas.

NBS Specification Clause Reference

For relevant NBS Specification, refer to NBS section

for floor channel systems relating to Clause 310 Floor

Channels in R11 - Above ground foul drainage

channels.

Note: A specification in NBS format is available to

download from www.thenbs.com or

www.acobuildingdrainage.co.uk

MODEL SPECIFICATION CLAUSE

Manufacturer: ACO Building Drainage,

ACO Business Centre, Caxton Road, Bedford, Bedfordshire MK41 0LF

Tel: 01462 816666, Fax: 01462 851490.

Email: [email protected]

Material: 304 grade austenitic stainless steel to BS EN 10088 pickle passivated.

Product: ACO Modular 125 linear drainage system to BS EN 1433 Load Class A15 to C250.

Literature: Contact ACO Building Drainage department for details.

Link to web: http://www.acobuildingdrainge.com/modular.php

Design: ACO Building Drainage Technical Services provide design and specification.

ACO Building Drainage – Modular 125 Linear Drainage System

ACO Modular 125 - Model Specification Clause


ACO Water ManagementCivils + InfrastructureUrban + Landscape

ACO Sport

ACO Wildlife

ACO Technic

ACO Home & Garden

ACO Technologies plc


A division of ACO Technologies plcACO Business CentreCaxton RoadBedfordBedfordshireMK41 0LFTel: 01462 816666Fax: 01462 851490

e-mail: [email protected]

The ACO Group: A strong family you can depend on.

© June 2012 ACO Technologies plc. All reasonable care has been taken in compiling the information in this document. All

recommendations and suggestions on the use of ACO products are made without guarantee since the conditions of use are beyond

the control of the Company. It is the customer's responsibility to ensure that each product is fit for its intended purpose, and that

the actual conditions of use are suitable. This brochure and any advice is provided by ACO Technologies plc (the Company) free of

charge and accordingly on terms that no liability including liability for negligence will attach to the Company or its servants or

agents arising out of or in connection with or in relation to this brochure or any such advice. Any goods supplied by the Company

will be supplied solely upon its standard conditions of sale, copies of which are available on request. The Company's policy of

continuous product development and improvement renders specifications liable to modification. Information provided in this

brochure is therefore subject to change without prior notification.

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