SPECIALISED FABRICATION
& WELDING


High-quality fabrication in stainless steel, duplex, super duplex and aluminium for water treatment applications.

PRECISION FABRICATION SUPPORTING YOUR MAINTENANCE REQUIREMENTS


Neumann Water provides specialised fabrication and welding services that support our mechanical fitting and asset upgrade capabilities. Our fabrication team works with stainless steel (304/316L), duplex, super duplex (2507/S32750) and aluminium to produce custom components, pipework, skids and structures for water treatment facilities.

What sets our fabrication apart is our understanding of water treatment applications and the demanding conditions these materials face. Our welders are qualified to work with duplex and super duplex materials, understanding heat input control, interpass temperatures and the specific requirements for these corrosion-resistant alloys. We fabricate to AS standards, client specifications and manufacturer requirements, delivering components that perform reliably in harsh water treatment environments.

For major fabrication requirements, we leverage the comprehensive capabilities of Neumann Construction, including large-scale structural fabrication, advanced welding certifications, hot-dip galvanising and industrial coating services. This provides our clients with complete fabrication solutions from small custom components through to major structural works.

OUR FABRICATION CAPABILITIES




DUPLEX & SUPER DUPLEX (2507/S32750)


We specialise in fabrication and welding of duplex and super duplex stainless steels commonly used in desalination and high-corrosion water applications. Our welders are qualified to work with these materials and maintain strict control over welding procedures, heat input and interpass temperatures. We fabricate pipework, pressure vessels, skids and custom components that meet the demanding requirements of seawater and aggressive water treatment environments.

Key Capabilities:


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    Duplex and super duplex (2507/S32750) welding
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    Pressure pipework and vessels
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    Heat input and interpass temperature control
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    AS1554.6 certified welding
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    Corrosion-resistant applications




STAINLESS STEEL & ALUMINIUM FABRICATION


High-quality fabrication in stainless steel (304/316L) and aluminium grades for frames, supports, access platforms, handrails and custom assemblies. We work to client specifications and Australian standards, delivering fabricated components with appropriate surface finishes for potable water and food-grade applications where required. All stainless and aluminium work includes proper material certification and traceability.

Key Capabilities:


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    Stainless steel (304/316L) fabrication
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    Aluminium fabrication and welding
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    Structural supports and platforms
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    Material certification and traceability
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    Potable water compliant finishes





CUSTOM SKIDS & PIPEWORK ASSEMBLIES


Design and fabrication of custom skids, pipework spools and assemblies for chemical dosing, pumping and treatment systems. We work from client drawings or develop fabrication designs from site measurements and requirements. All pipework is fabricated to ensure correct fit-up, includes pressure testing where required, and can be delivered with protective coatings applied through Neumann Industrial Coatings.

Key Capabilities:


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    Custom skid design and fabrication
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    Pipework spools and assemblies
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    Chemical dosing systems
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    Pressure testing and certification
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    Protective coating integration




REPAIRS & MODIFICATIONS


Onsite and workshop-based repairs and modifications to existing equipment, structures and pipework. We provide welded repairs to cracked or damaged components, modifications to improve equipment function or access, custom brackets and mounting systems, and rectification of installation issues. Our fabrication team works flexibly to solve practical problems and keep your facility operational.

Key Capabilities:


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    Welded repairs and rectification
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    Equipment modifications
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    Custom brackets and fixings
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    Workshop and onsite fabrication
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    Problem-solving approach


MAJOR FABRICATION THROUGH NEUMANN construction


For major structural works, large-scale fabrication and specialist coating requirements, Neumann Water leverages the comprehensive capabilities of Neumann Construction. This includes structural steel fabrication, advanced welding capabilities, hot-dip galvanising, abrasive blasting and industrial painting. This integrated approach provides complete fabrication solutions from design through to coated, finished components ready for installation.

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Major structural steel fabrication
Steel Pipes Stacked Outside the Factory on pallets
Hot-dip galvanising facilities
Coating of GRP tank
Abrasive blasting and coating
Structural design support
RPEQ-certified structural design support

OUR SPECIALISED WORK IN ACTION








Frequently Asked Questions


Both. We can fabricate to your provided drawings and specifications, or we can develop fabrication designs from site measurements and functional requirements. For structural or pressure vessel works requiring RPEQ certification, we collaborate with certified engineers to ensure compliance. Our practical fabrication experience often identifies design improvements that enhance constructability and performance.

FEATURED FABRICATION PROJECTS


Water Treatment Plants Vermin Proofing

Installation of Vermin Proofing at WTPs Overview of Project: Existing vermin proofing (shade cloth) and screens under the Whirly Birds at the water treatment plants were failing and non-compliant. In addition, fascia and cross bracing. Scope of Works: Design and the fabrication of new vermin proofing screens was outsourced. Neumann Water removed existing screens, integrated a fixing system to the

Water Treatment Plants Vermin Proofing

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Switchboard Roof Structure at a WTP

Plant Switchboard Roof Structure at WTP Overview of Project: Neumann Water was brought on the project to fabricate and install a new roof for weather protection during maintenance. A new electrical switchboard was installed in 2012 and was exposed to the elements. The switchboard is an important component to the operations of the plant and cannot be isolated whilst the

Switchboard Roof Structure at a WTP

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Sulphuric Acid Skid Pipe Upgrade and Pressure Test

Sulphuric Acid Skid Pipe Upgrade and Pressure Test Overview of Project: Part of the recommissioning works of the plant, the sulphuric acid system had been identified as high risk of failure due to the plastic piping and age of the piping. Scope of Works: Re-engineer and replace all the plastic pipe and valves with stainless steel, pressure test with nitrogen.

Sulphuric Acid Skid Pipe Upgrade and Pressure Test

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Installation of Chemical Dosing Skid Cabinets

Design, Fabrication, and Installation of Chemical Dosing Skid Safety Cabinets Overview of Project: Veolia have entered into a contract with QGC for the long-term operations and maintenance of Water Treatment Facilities located in the Surat Basin in the Chinchilla area as part of the Queensland Curtis LNG (QCLNG) project. The project involves expanding QGC’s existing coal seam gas production in

Installation of Chemical Dosing Skid Cabinets

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Maintenance Shade Sails and Posts at a WTP

Replace Shade Sail Posts at a Water Treatment Plant Overview of Project: Fabricate and install new shade sail posts at a water treatment plant. Scope of Works: Existing posts located on top of the tank walls on 2 x clarifier tanks at a water treatment plant had broken out the concrete and were at risk of falling into the clarifiers.

Maintenance Shade Sails and Posts at a WTP

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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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Treated Water Reservoir Vermin Proofing

Treated Water Reservoir Vermin Proofing at a Water Treatment Plant Overview of Project: A Water Quality Site Systems Audit Report highlighted the need to repair the existing vermin proofing on the Treated Water Reservoir as it was not fit for purpose. The chemical building on site also required screens to prevent bugs inundating the facility. Innovation: In order to minimise

Treated Water Reservoir Vermin Proofing

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DISCUSS YOUR FABRICATION REQUIREMENTS


Whether you need custom components for maintenance work or major fabrication support, our team is ready to help. Contact Neumann Water today to discuss your fabrication requirements.