MECHANICAL
FITTING


Expert pump rebuilds, overhauls and mechanical maintenance for critical water treatment equipment.

KEEPING CRITICAL WATER TREATMENT EQUIPMENT RUNNING RELIABLY


Neumann Water specialises in mechanical fitting and maintenance for water treatment plants, desalination facilities and wastewater operations across Australia. Our experienced mechanical fitters deliver pump rebuilds, horizontal laser alignment, rotating equipment maintenance and precision fitting services that minimise downtime and extend asset life.

We understand that unplanned equipment failures can severely impact your operations and water supply commitments. Our team provides rapid response breakdown support, planned maintenance programs and comprehensive overhauls delivered with rigorous safety standards and full technical documentation.

All mechanical fitting work is performed by qualified tradespeople with extensive water industry experience. We specialise in working with duplex and super duplex stainless steel (2507/S32750), understand the unique requirements of potable water applications, and deliver all work with comprehensive JSEA documentation.

OUR MECHANICAL FITTING CAPABILITIES




PUMP REBUILDS & OVERHAULS


We deliver comprehensive pump overhauls and rebuilds for centrifugal, high-pressure and multistage units used in water treatment and desalination. Each overhaul includes complete dismantle and inspection, bearing and seal replacement, impeller assessment, shaft inspection, casing machining and full performance testing. We work to manufacturer specifications or provide engineering recommendations for improved reliability.

Key Benefits:


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    All pump types including RO high-pressure units
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    Complete dismantle, inspection and rebuild
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    Performance testing and commissioning
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    Minimal downtime to operations




PRECISION ALIGNMENT & SEALING


We provide horizontal laser alignment services for pumps, drives, gearboxes and motors, reducing bearing wear and extending equipment life. Our flange refacing and sealing remediation service addresses damaged sealing surfaces through onsite machining, correct gasket selection and bolt tensioning. We work with all materials including duplex and super duplex (2507/S32750) to ensure leak-free connections.

Key Benefits:


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    Laser alignment to manufacturer specifications
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    Flange refacing and sealing remediation
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    Works with duplex and super duplex materials
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    Detailed alignment reports provided





VALVE, PIPEWORK & EQUIPMENT SERVICES


Comprehensive valve and actuator servicing includes dismantle, seal and gland packing replacement, seat refacing and functional testing for all valve types. We provide pipework repairs and replacement in stainless, duplex and super duplex materials with pressure testing and certified welding. Our rotating equipment inspection service uses vibration analysis, bearing assessment and alignment verification to identify issues before they become failures.

Key Benefits:


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    All valve types and actuator servicing
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    Stainless, duplex and super duplex pipework
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    Pressure testing and AS1554.6 welding
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    Condition monitoring and inspections




24/7 EMERGENCY & PLANNED MAINTENANCE


We provide 24/7 emergency breakdown support for critical equipment failures, with rapid mobilisation and spare parts availability. Our planned maintenance programs include scheduled overhauls, condition monitoring and reliability improvement strategies that optimise uptime and reduce lifecycle costs. We work with plant operators to develop maintenance schedules aligned to your operational requirements.

Key Benefits:


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    24/7 emergency breakdown response
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    Planned maintenance program development
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    Condition-based maintenance approach
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    Predictable maintenance scheduling


OUR MECHANICAL WORK IN ACTION








Frequently Asked Questions


We rebuild and overhaul all types of pumps commonly used in water treatment facilities, including centrifugal pumps, high-pressure multistage pumps, vertical turbine pumps, progressive cavity pumps and specialist reverse osmosis feed pumps. Our team is experienced with major brands and works to manufacturer specifications or provides engineering recommendations for improved reliability.

FEATURED MECHANICAL FITTING PROJECTS


Refurbishment of Intake Screen at a WPS

Water Pumping Station – Refurbishment of Intake Screens Overview of Project: Refurbish Intake Screen — the intake screens ensure no debris that could damage the pump stations passes through, and are essential for required flow. There are three screens: two are in use and one is a spare. Two of the screens are not fit for purpose. The refurbishment of

Refurbishment of Intake Screen at a WPS

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Laser Alignment of Rotating Equipment

Laser Alignment of Rotating Equipment Overview of Project: Periodic maintenance for correct operation and alignment. Scope of Works: Laser alignment check and adjustment of rotating equipment. Conclusion/Outcome: Mechanical fitting of equipment and systems by minimising downtime and implementing cost-effective strategies for maintenance. Alignment checks completed to client or manufacturer specifications. Regular alignment checks will reduce equipment wear and vibrations and

Laser Alignment of Rotating Equipment

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High Pressure Pump Overhaul at GC WTP

High Pressure Pump Overhaul at Gold Coast Desalination Plant Overview of Project: Neumann Water was engaged to dismantle and conduct durability inspections on all of the high-pressure water pumps at the Gold Coast Desalination Plant. Scope of Works: Dismantle the pump, inspect all components, report on the condition of the pump, reassemble and recommission pump. Conclusion/Outcome: Pump was dismantled and

High Pressure Pump Overhaul at GC WTP

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Wolleebee Creek Northern WTP Heat Exchanger Clean

Heat Exchanger Clean Overview of Project: Vent condenser on the brine concentrator becomes blocked and results in reduced flows. Scope of Works: Use high pressure jet rod to descale the vent condenser. Innovations: Fabricated a catch and drain to control the discharge. Previously the cleans had been completed without this device and the scale was free to contaminate the steel

Wolleebee Creek Northern WTP Heat Exchanger Clean

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Installation of Fluoride Hopper Shut Off Valves

Installation of Fluoride Hopper Shut Off Valves Overview of Project: The water treatment plant (WTP) was built in 1967 and is the second largest water treatment plant in the area, supplying the southern suburbs of the city. The fluoride system at the water treatment plant has a hopper shutoff valve that is utilised for isolating the hopper from the feeder

Installation of Fluoride Hopper Shut Off Valves

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Repair Filter Outlet Assemblies at a WTP

The Repair of Filter Outlet Assemblies at a Water Treatment Plant Overview of Project: The filter outlet pipework assembly and isolation valve spindles (12 in total) at a water treatment plant required refurbishment or replacement. The pipework and valves have varying levels of corrosion and some surfaces are not coated to prevent corrosion. Innovation: As a member of the client’s

Repair Filter Outlet Assemblies at a WTP

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WTP Centrifuge Overhaul and Service

Centrifuge Overhaul and Service Overview of Project: Neumann Water was contracted to undertake the 6000hr service of an Andritz centrifuge. Scope of Works: The service included: Feed side bearing replacement; Scroll inspection; Cyclo gearbox grease change; Redex Reducer oil change; Drive belt replacement; and Realignment of the motor. Conclusion/Outcome: Mechanical fitting of equipment and systems by minimising downtime and implementing

WTP Centrifuge Overhaul and Service

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New Transfer Pump Bypass at Bundamba WPS

Bundamba West Pumping Station – New Transfer Pump Bypass Overview of Project: Currently, temporary mapress 316 SS bypass pipework within the Bundamba West pump station is used to supply water from the Eastern Pipeline to the Bundamba Treated Water tanks. It was identified that fit-for-purpose designed pipework was required to replace the temporary solution for ongoing supply. The pipework changes

New Transfer Pump Bypass at Bundamba WPS

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DISCUSS YOUR MECHANICAL FITTING REQUIREMENTS


Whether you need planned pump overhauls, urgent breakdown support, or a comprehensive maintenance program, our mechanical fitting team is ready to help. Contact Neumann Water today.