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Strainer for protection of pumpsProduct presentation

2 Individual footer (e.g. title of presentation, date, name of presenter): Arial 9 pt, gray, align center, max. 1 line

The

Andritz Group

Company

ANDRITZ AG, Graz, Austria (Group headquarters).More than 150 production and service sites worldwide.

Key figures 2008

Order intake: 3,705 MEUR.Sales: 3,610 MEUR.Net income (incl. minority interests): 147 MEUR.Equity ratio: 18.7%.Employees: ~13,700 worldwide.

Products and services

Customized plants, process technologies, and services for the hydropower, pulp and paper, metals, and other industries (solid/liquid separation, feed and biofuel).

Overview


Company Profile

The Hydro Power and Rolling Mills and Strip Processing Lines business areas were renamed ANDRITZ HYDRO and ANDRITZ METALS as of January 1, 2009.

33% of Group sales.

Electromechanicalequipment and services for hydro-power stations – in particular, turbines, hydropower gener-ators, and turbogenerators; pumps.

37% of Group sales.

Plants and services for theproduction of all types of pulp(chemical, mechanical, recycled fiber pulps), paper, board, tissue, and Medium Density Fiberboard (MDF); biomass boilers for power generation.

16% of Group sales.

Production and finishinglines for metallic strip, especially for carbon and stainless steel.

10% of Group sales.

Plants, equipment, and services forsolid/liquid separation for municipalitiesand industries (e. g. mining, chemicaland petrochemical industries, foodindustry).

4% of Group sales.

Plants, equipment, and services for theproduction of animalfeed and biomasspellets, especiallywood pellets.

A world market leader in most business areas


Strengthening of the market position

The Hydro Power and Rolling Mills and Strip Processing Lines business areas were renamed ANDRITZ HYDRO and ANDRITZ METALS as of January 1, 2009.

Compound Annual Growth Rate (CAGR)of Group Sales 1998-2008: +17%

666 656937

3,6103,283

2,710

1,7441,481

1,2251,1101,319

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

CAGR 1998-2008: +17% p. a.

(thereof +11% p. a. organic growth)

Sales of the ANDRITZ GROUP (MEUR)

PULP & PAPER

1990

Sprout-Bauer

1992

Durametal

1994

Kone

Wood

1998

Kvaerner Hymac

1999

Winberg

2000

Ahlstrom Machinery

2000

Lamb Baling Line

2000 Voith

Andritz Tissue LLC (JV)

2002

ABB Drying

2003

IDEAS Simulation 2003

Acutest Oy

2003

Fiedler

2004

EMS (JV)

2005

Cybermetrics

2005 Universal Dynamics Group

2006

Küsters

2006 Pilão

2007

Bachofen

+ Meier

2007 Sindus

2008 Kufferath

FEED & BIOFUEL

1995

Jesma-Matador

2000

UMT

2005

Chemes

Strojarne

2006

VA TECH HYDRO (Siemens)

2007

Tigép

2008

GE Hydro business

2008

GEHI (JV)

HYDRO

ENVIRONMENT & PROCESS

1992

TCW Engineering

1996 Guinard

2002

3SYS

2004

Bird Machine

2004

NETZSCH Filtration

2004

Fluid Bed Systems of

VA TECH WABAG

2005

Lenser

Filtration

2006

CONTEC Decanter

METALS

1997

Sundwig

1998

Thermtec

2000 Kohler

2002

SELAS SAS Furnace Div.

2004

Kaiser

2005

Lynson

2008

Maerz

Growth through organic expansion and acquisitions


2008 results

at a glance

Key figures of the ANDRITZ GROUPMEUR (according to IFRS) 2008 2007* +/-

Order intake 3,705.3 3,749.5 -1.2%

Order backlog (as of end of period) 4,277.4 3,843.3 +11.3%

Sales 3,609.8 3,282.5 +10.0%

EBITDA 278.2 250.7 +11.0%

EBITA 233.2 209.7 +11.2%

Earnings Before Interest and Taxes (EBIT) 218.5 200.9 +8.8%

Financial result -8.1 -0.1 -

Earnings Before Taxes (EBT) 210.5 200.8 +4.8%

Net income (incl. minority interests) 147.0 137.8 +6.7%

Cash flow from operating activities 255.0 33.1 +670.4%

Capital expenditure 69.7 57.0 +22.3%

Employees (as of end of period) 13,707 12,016 +14.1%

EBITDA margin (%) 7.7 7.6 -

EBITA margin (%) 6.5 6.4 -

EBIT margin (%) 6.1 6.1 -

* restated

Solid development despite difficult environment


Andritz Group: structure

Feed

Technology

Andritz Group

Pulp &

Paper

Rolling Mills

and Strip

Processing

Lines

Environment

&

Process

Technologies

Hydraulic Machines

Mech. PulpingSystems

Paper MillServices

SERVICE

FiberPrep.

SystemsPulp MillServices

Engineered Wear Products

Regional Services Divisions

Wood Processing Fiberline Pulp Drying

Systems

CAPITAL

Recovery

Chemical Systems

Tissue, Paper & Borad

Press & Calander

Tech.

Andritz FiedlerScreen Baskets

& Rotors,

Perforated

Components


Andritz groupworld map


Fiedler was founded in 1889 as a company for punched plates, mainly used in agriculture, breweries and mills for feed and food industry for general plant production and engineering.Fiedler specialized in producing perforated materials as drilled and milled components for pulp and paper-, food- and other industries. This led the company to a leadership position worldwide.

In the 90ies Fiedler developed different screen basket and rotor types, respectively complete screens for pulp and paper industry.Strainers for power plants, plant engineering and pump manufacturers.In September 2003 the acquisition of Fiedler by Andritz (a former customer) was completed.

Andritz Fiedlerhistory


Regensburg

GrazChâtellerault

Andritz Fiedler GmbHhttp://www.andritz.com/fiedler

Weidener Strasse 9, 93057 Regensburg, Germany

Affiliated companiesAndritz Fiedler S.A.S., Châtellerault, France

Company structureFamily owned company till September 2003

Today: 100 % Andritz AG, Graz, Austria

EmployeesApprox. 260 (2008, Andritz Fiedler)

Andritz FiedlerCompany details


Business area Perforating Technology (PerfTec)Products for many different industries, world-wide activities

Business area Pulp & PaperProducts and services for the paper and pulp industry, as well as for world-wide OEM (original equipment manufacturers)

Andritz Fiedler Turnover2008: 45,9 mio. €2007: 46,3 mio. €2006: 37.4 mio. €2005: 32.5 mio. €2004: 31.9 mio. €

Andritz FiedlerCompany details


Screen baskets for pulp and paper

Andritz FiedlerExtract of the product portfolio


Screen baskets for pulp and paperScrew press baskets for dewatering



Screen baskets for pulp and paperScrew press baskets for dewateringScreens for strainers

Protection of pumps, valves




Protection of pumps, valves …Strainers for hot steam




Protection of pumps, valvesStrainers for hot steamCap Screens




Protection of pumps, valvesStrainers for hot steamCap ScreensFilter type “HE” with housingHE = High Efficiency




Protection of pumps, valvesStrainers for hot steam Cap ScreensFilter type “HE” with housingProtection of turbines



Screen baskets for pulp and paperScrew press baskets for dewateringScreens for strainersScreen inserts for diffusers



Screen baskets for pulp and paperScrew press baskets for dewateringScreens for strainers Screen inserts for diffusersPerforated screens for gas absorber reactors



Screen baskets for pulp and paperScrew press baskets for dewateringScreens for strainers Screen inserts for diffusersPerforated screens for gas absorber reactorsPerforated beds for fluid bed dryers



Screen baskets for pulp and paperScrew press baskets for dewateringScreens for strainersScreen inserts for diffusersPerforated screens for gas absorber reactorsPerforated beds for fluid bed dryersWear resistant screen baskets for dewatering centrifuges



Cap Screen Y-StrainerT-StrainerEcksieb

Basket-StrainerCommon Type

Basket-StrainerType -

HE

Design single cone/ double cone in straight pipesegment

screen insert in casted housing(generally used forvalves)

screen insert in specially designedangled pipe element(bow) as housing

screen insert in specially designedhousing

most eco-nomicscreen insert in special-ly designedhousing

Installation Details

limited spacesolutionhorizontal or

vertical

limited spacesolutionlimited possibilities

for installation

placed in a bow of a pipe system

limited possibilitiesfor installation

limited spacesolutionhorizontal or

vertical

Pressure

drop in clean condition

low high fair fair very low

Pollutant

characteristics

only to be used as „police screen“ forless pollutedmedium

only to be used as „police screen“ forless pollutedmedium

can be used formore pollutedmedium

can be used forless pollutedmedium

can be used forhigh pollutedmedium

Overview

strainersMost common types


Two configurations of cap screensSingle cap screen Double cap screen

Cap screens


Single cap screen

Cap screensTechnical details


Double cap screen

Cap screensTechnical details


Single or Double cone, depending on requirementsConstruction drilled or punched, with or without layer of wire clothFlow direction inside-to-outside and opposite direction possibleDesign depending on installation direction (horizontal / vertical)Simple pipe segment as housing

Cap screensCharacteristics


Perforating

technology

cutting

burr

cutting

burr punching

burr

punch

entrance

side

Punching Drilling

Cheap solutionLimited plate thickness Limited open area / number of holesDifferent hole shapes (round / oblong)Micro cracks in the material due to punching process

High technical solutionHigher stability due to increased plate thicknessMaximum open area/ number of holesVariety of possible hole profiles (cylindrical, countersunk)

micro

cracks


The factors which influence the pressure loss of screen insertsOpen area (number of holes respectively relation AO/Apipe)Deflection of throughput / bend lossDirection of inflow Influence of contamination of screen / screen pollutant characteristicsForm / Type of screen (cylinder, cone single / double, plate, bag)Hole profile / hole shape

Influence of constructive parameters on Pressure loss


∆p ~ v2

(v: velocity)

Influence of velocity on the pressure loss of a cap screen


Filter Type T


Cylinder or single cone as screen insert, depending on requirementsConstruction drilled or punched, with or without layer of wire clothFlow direction mostly inside-to-outsideInstallation direction mostly horizontalSpecially designed angled pipe element (bow) as housing with maintenance lid for screen insert

Filter Type TCharacteristics


Filter Type HE (High Efficiency)


Filter Type HE

Most economic screen insert: low pressure loss even when screen is pollutedoptimized bag shape of screen insert(high screening qualities despite small size)

Construction/Design: wire cloth and/or punchedFlow direction mostly inside-to-outsideInstallation direction horizontal or verticalSpecially designed housing with maintenance lid for screen insertand connections for measurement of pressure drop

Characteristics


Comparing

costs

of filter

types

cap

screens

strainer

type

T

strainer

type

Y

basket

strainer

type

HE

basket

strainer

„common

type“

purchase

costsoperating

costs

screen

cleanoperating

costs

screen

dirtycleaning/maintenanceenergy

costsoperating

costs+ ++

Comparison of purchase costs including housing, operating costs (clean/dirty), maintenance costs


Comparing

cleaning

intervals

At constant

pollutant

quantities

and maximum

pressure

drop (□p max) the

various

filter

types

have

different cleaning

intervals

<

>

cap

screens

strainer

type

T

strainer

type

Y

basket

strainer

type

HE

basket

strainer

„common

type“

> twice

twice

< twice

2-3 times

once

cleaning

interval:

machine shut down, loss of production, maintenance costs


Advantages / Disadvantages

at a glance

Cap Screen/

Double Cap Screen Y-Strainer

T-Strainer

/ Ecksiebe

Basket-StrainerCommon Type

Basket-StrainerType -

HE

Pollutant

charac-

teristics

only to be used as „police screen“ for lesspolluted medium

only to be used as „police screen“ for lesspolluted medium

can be used for morepolluted medium

can be used for lesspolluted medium

can be used for high polluted medium

Advantages cheapest screeningsolutionplaced directly into pipe

cheap screeningsolution due to casthousing, usually usedfor valves

quick and easycleaning / replacing of screen insert

replacing of screeninsertwithout draining of pipe

lowest pressure losseven if pollutedquick and easy

cleaning / replacing of screen insert(without draining of pipe)

Dis-

advantages

demonting of pipe forcleaning of cap screencauses higher pressure

loss due to construction

high pressure lossespecially whenpollutedunfavorable cleaning

and replacing of screen insert

more expensivecompared to capscreencauses higher

pressure loss due to construction

high pressure loss, especially whenpollutedhigh maintenance

cost due to shortcleaning intervals

most valuable solution


Checklist for Strainers

Screen Type (start-up screen, permanent screen, cap screen, T-strainer, etc.)Dimensions of pipe (diameter DN, pressure level PN, wall thickness)Limitations in lengthOrientation of installation (horizontally / vertically / T-strainer)Medium to be filtered (gas, water, steam, other)Operating parameters (throughput, density, temperature, pressure) Fineness (Perforation, wire cloth, etc.)Pollutant quantities / Cleaning method (if relevant)Pressure loss (if relevant)Material (if relevant)


Reference list for

strainers

KSB (Cap screens, Filter Type HE for protection of pumps)Steinmüller (Cap screens for protection of pumps)Alstom (Cap screens, Filter Type HE for protection of pumps)Shell Engineering (Cap screens for protection of pumps)Babcock Power (Screens for protection of turbines)E.ON Engineering (Screens for protection of turbines)RWE (Screens for protection of turbines)YUEYANG SINOPEC and SHELL COAL Gasification Co. LTD.(Cap screens for protection of pumps)

Hitachi Power Europe (T-Strainer, Filter Type HE for protection of pumps)STEAG (T-Strainer, Filter Type HE for protection of pumps)…

Strainer for protection of pumpsProduct presentation

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