pressure piping

Pressure Piping Systems

Precision-Fabricated | Code-Compliant | Built to Perform

At All Star Welding (ASW), we specialise in the fabrication, welding, and installation of pressure piping systems for high-spec industries—including oil & gas, defence, mining, and energy infrastructure.

From high-pressure hydrocarbon lines to stainless steel utility systems, we deliver solutions engineered to perform under pressure—literally.

We provide pressure piping solutions that meet the most demanding codes and industry requirements:

• ASME B31.1 / B31.3
• AS 4041 and AS 4458
• ISO 9001 – Quality Management Systems
• ISO 3834 – Welding Quality Requirements
• Defence-specific specifications and MIL standards
   

• Pipe spool fabrication: carbon steel, stainless, duplex, exotic alloys
• Coded welding (GTAW, SMAW, FCAW, MIG)
• Welding Procedure Qualification: WPS & PQR
• High-integrity joints for pressure and temperature extremes
• Hydrostatic and pneumatic testing
• On-site pipe fitting and installation
• Full QA/QC documentation and weld traceability
   

Location: Darwin, Northern Territory

We operate from a purpose-built facility equipped to handle complex and large-scale fabrication:

• Pipe cutting, bevelling, and rolling machines
• Positioners and rotators for precision welds
• Pressure welding bays
• QA/QC office with real-time digital documentation
• Supervised by our in-house QA Manager
• Fully compliant with ISO 9001 & ISO 3834 standards
   

We support clients across a range of high-risk, regulated industries:

• Oil & Gas Processing Plants
• Defence Infrastructure & Marine Systems
• Power Generation & Utilities
• Chemical & Water Treatment Facilities
• Mining and Resource Sector Pipelines
   

We embed quality into every step of the process—ensuring all work is traceable, auditable, and code-compliant.

Our QA/Compliance framework includes:

• Inspection and Test Plans (ITPs)
• Third-party or client-side inspection coordination
• Material Test Certificates (MTCs)
• Welder qualification records
• NDT reports: RT, UT, PT, MT
• Complete MDRs (Manufacturer’s Data Reports)
   

Certified to ISO 9001 and ISO 3834 standards
 

Why Choose ASW?

✔ Proven experience with Class 1 and high-specification piping systems
✔ Coded welders and certified inspectors
✔ Seamless project integration with contractor teams
✔ Fast turnaround, without compromise on quality or safety

"Engineered for pressure. Delivered with precision."