Welding Test
Impact Solutions provides specialist weld testing services for polyethylene (PE) pipe systems, supporting utilities, contractors, and manufacturers in ensuring the integrity and performance of pipeline installations.
We test PE pipe welds across all diameters, helping clients verify compliance, reduce risk, and avoid costly failures.
What is PE Pipe Weld Testing?
PE pipe weld testing assesses the strength, integrity, and performance of welded joints, such as butt fusion and electrofusion connections, to ensure they meet required standards and perform reliably in service.
Testing identifies weak joints, poor installation practices, and potential failure risks before pipelines are commissioned.
Standards We Test To
We carry out weld testing in accordance with key industry standards, including:
- WIS 4-32-08 (fusion jointing of PE80 and PE100 pipelines)
- ISO 13953
- GIS PL2 Part 2 (5.5 bar)
- GIS PL2 Part 8 (7 bar)
- GIS PL2 Part 4 (electrofusion)
- ASTM and other international standards
Why is Weld Testing Important?
Regular weld testing is critical to ensuring pipeline reliability and avoiding costly operational issues.
Key Benefits of Weld Testing
- Prevent pipeline failures and unplanned downtime
- Avoid costly excavation and rework
- Maintain confidence in system integrity
- Reduce material and replacement costs
- Minimise long-term maintenance risks
- Avoid expensive and complex failure investigations
Even a single weld failure can undermine confidence in an entire pipeline system, necessitating additional redundancy measures and increasing project costs.
Have a question?
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Electrofusion and Butt Fusion Weld Testing
Impact Solutions provides specialist testing for both electrofusion and butt fusion welds, helping ensure the integrity, compliance, and long-term performance of polyethylene (PE) pipeline systems.
We test welds to a wide range of international and industry standards, delivering accurate results alongside expert interpretation.
What is Electrofusion Welding Testing?
Electrofusion welding testing evaluates the strength and integrity of electrofusion joints, where fittings are fused to pipes using embedded heating elements.
Electrofusion Testing Capabilities
Electrofusion testing is carried out using a UKAS-calibrated Instron universal testing machine, ensuring precise and repeatable results.
We support testing to:
- ISO standards
- ASTM methods
- WIS specifications
- GIS PL2 requirements
We also test a range of joint geometries and configurations to reflect real-world installation conditions.
Expert Failure Mode Analysis
Our team has extensive experience in interpreting electrofusion weld performance, including:
- Lack of fusion
- Contamination issues
- Brittle and ductile failure modes
This ensures you receive not just test data, but clear insight into weld quality and installation performance.
What is Butt Fusion Weld Testing?
Butt fusion welding testing assesses the strength and durability of joints formed by heating and fusing pipe ends together—commonly used for larger diameter pipelines.
Butt Fusion Testing Capabilities
We test butt fusion welds across a wide range of pipe sizes and standards, including:
- ISO
- ASTM
- WIS
- GIS
Each standard requires specific specimen geometries and testing methodologies, all of which we are equipped to deliver.
Advanced Interpretation of Weld Behaviour
Impact Solutions brings deep expertise in understanding how energy is transferred during the welding and testing process.
This allows us to:
- Accurately interpret test results
- Identify subtle weld defects
- Provide actionable recommendations
- Support high-quality pipeline installation
Expert Interpretation & Failure Analysis
Beyond testing, we provide expert interpretation of weld performance and failure modes.
Our team has extensive experience in identifying:
- Ductile vs brittle failure
- Lack of fusion or contamination issues
- Installation-related defects
This ensures you not only receive test results—but clear, actionable insight into weld quality and pipeline integrity.
Why Choose Impact Solutions?
- 50+ years of pipeline and materials expertise
- Testing across all PE pipe diameters
- UKAS-calibrated equipment and recognised standards
- Deep expertise in weld failure analysis
- Trusted by utilities and contractors across the UK
