Trevor Barrett

Technical Sales ManagerAerzen Machines Ltd.

Office Tel: 020 8502 8100

Aerzen Blowers for Severn Trent Water

AMP5 Aeration Applications:

reducing contractors risk

delivering lowest capital cost

Positive displacementblowers

Screwcompressors

Min 300 m³/h Max 14.500 m³/hrDelta p max. 3,5 mbarMax. pressure 13 bar

Min 0,65m³/h Max 6.500,00m³/hrDelta p max. 3..5 mbarMax. pressure 16 bar

The Aerzen production program

DELTA BLOWER series

up to 2 bar Δp3 + 4 profile

up to 3,5 bar Δp4 + 6 profile

Two compressor profiles for optimal efficiencies

1. Energieeffizienz

VMVML

Aerzen

Aerzen Machines Ltd

A long reputation with UK water authorities & contractors

Water Authorities•Severn Trent Water Services

•Anglian Water Services Ltd

•Thames Water

•Yorkshire Water

•Scottish Water

•Southern Water

•South West Water

•Wessex Water Services

•Welsh Water

Water Contractors•MWH

•Biwater

•NMC Nomenca

•Costains

•Mott McDonald

•Bentley

•Black and Veatch

•Meica Process

•Lange O’Rourke

•Aerzen are the current sole framework supplier of positive displacement blowers to Severn Trent Water.

• Into AMP5 Aerzen will offer equipment that complies withthe scope stated by Severn Trent Water for positive displacement blowers.

•The new Aerzen Hybrid and Turbo options offer enhanced whole life cost potentials.

Aerzen work closely with the contractor to deliver the best overall solution.

• Blower sizing using all machine options.

• Power and whole life cost calculations.

•Optimised layout regards maintenance and operation.

•On site support

•Planned maintenance solutions

The Delta Hybrid series

Pressure operation up to 0,8 barSuction operation up to – 0,6 barVolumes up to 3850 m3/hour

Rotor profile: 3+3 twisted

Press. operation up to 1,5 barVolumes up to 3400 m3/hour

Rotor profile: 3+4

The Delta Hybrid series

Frequency converter and control system

The The ““new generationnew generation”” of high speed of high speed turbo blowersturbo blowers

Pressure operation up to 1,5 barVolumes up to 13000 m3/hour

Easy Operation & Maintenance

Lower Sound Levels Achieved

100% Oil-Free Air Delivery

Mechanical VentilationFan Fitted

Totally ReactiveDischarge Silencer

3-Lobe Rotor ProfileWith Pulsation

Cancelation Chamber

Space Saving Design

The application of the interferenceprocess to the construction of rotary lobe blowers has beenpatented by Aerzener Maschinenfabrik under the registration number DE 3527292 C2

3-Lobe rotor profile with pulsation cancelation chamber

X-ray presentation of a three-lobe blower

Construction of the 3 Lobe Blower

100% oil-free air delivery

Aerzen

Simple Operation and Easy Maintenance

• Commissioning – every unit is supplied with a lifting jack; initial fill of oiland a funnel.

• Servicing – The unit can be completely serviced from the front.

Aerzen

Simple Operation and Easy Maintenance

• Operational Checks – the oil level can be checked from outside the unit while it is operational.

• Blower downtime, production and process losses are eliminated.

Aerzen

Space Saving Design

• The dimensions have been reduced on the smaller size units

• With “Side by Side” installation the floor space required has been considerably reduced on all units.

Aerzen

Lower Sound Levels

• Sound levels have been reduced by 6 – 8 dBA

• In certain individual cases even lower levels have been achieved

• Only when exceptionally low noise levels are required will special design acoustic hoods be required.

Aerzen

Mechanical Ventilation Fan

• Additional electrical installation costs are eliminated

• Reduced power consumption

• Fully complies with all ATEX requirements – Ex proof fan motors are no longer necessary – a considerable cost saving

Aerzen

Elimination of Absorption Material• The discharge silencer does not use absorption material for noise reduction.

•Aeration systems cannot become contaminated from degraded absorption material.

Aerzen Delta Blower Hire Units• Aerzen oil free Delta blowers

• Pressure differentials up to 1000 mbar

• Volumes per unit from 0.7 to 90 m3/min

• Variable speed drive to optimise performance

• Energy efficient – low cost operation

• Sound proofed – environmentally friendly

• Fully packaged air cooled units ready to install

• Mounted in a protective frame for easy handling with a fork-lift truck or crane

Aerzen

Summary of Advantages Offered:

1. Whole-Life running costs reduced2. Reduction in installation & maintenance times3. Smaller foot print size of assemblies4. Lower sound level acoustic enclosures 5. Reduction in power requirements (mechanical fan)6. 5 Year Warranty under current framework7. Help in Emergencies

Thank you for your attention