Why is FAT essential for pressure containers?
In industrial projects, pressurized containers are critical components of explosion-proof control systems. Before these containers are deployed on-site, it is crucial to verify their functionality, safety, and reliability under real operational conditions. Factory Acceptance Testing (FAT) addresses this need by ensuring the vessel performs safely and efficiently from day one.
1. What is FAT and why does it matter?
FAT is not just a checklist—it is a proactive safety validation. It ensures:
2. Visual Inspection: The first defense
The FAT process starts with a thorough visual check of all components:
3. Electrical Integrity Checks: Safety first
4. System Interface & Operation Testing: Usability matters
5. Functional Testing: Confirm real-world performance
6. Conclusion: FAT ensures peace of mind
Successful FAT means the pressure vessel is ready for deployment:
Bottom line: FAT is the final checkpoint before your pressure vessel goes live, guaranteeing reliable, safe operation in the field.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Product brochures:
Offshore total pressurised container solutions
Offshore pressurised mud logging cabin brochure
MCC | Switchgear | VFD | VSD pressurised shelter
Keywords: #Pressure Vessel FAT,#Factory Acceptance Testing Guide,#PDU Pressure Vessel,#Shop-type Pressure Vessel,#Explosion-proof Pressure Vessel,#Electrical System Verification,#Emergency Shutdown Test,#Gas Detector Testing,#Positive Pressure Control,#Industrial Safety Testing
In industrial projects, pressurized containers are critical components of explosion-proof control systems. Before these containers are deployed on-site, it is crucial to verify their functionality, safety, and reliability under real operational conditions. Factory Acceptance Testing (FAT) addresses this need by ensuring the vessel performs safely and efficiently from day one.
1. What is FAT and why does it matter?
FAT is not just a checklist—it is a proactive safety validation. It ensures:
- Critical electrical systems operate reliably
- Positive pressure and airflow are maintained
- Safety alarms and emergency systems function correctly
- Equipment withstands extreme environmental conditions
2. Visual Inspection: The first defense
The FAT process starts with a thorough visual check of all components:
- Control & emergency systems: Explosion-proof CPFG control box, emergency stops, gas detectors (H₂S, combustible gas), smoke/temperature sensors, and fire alarms
- Pressure components: Differential pressure transmitters and gauges correctly connected
- Emergency equipment: Alarms, extinguishers, lighting, and stop mechanisms
- Electrical wiring & grounding: Proper insulation and sealed cable entries
- Sealing & labeling: Pressurized compartments clearly marked to ensure safe operation
3. Electrical Integrity Checks: Safety first
- Insulation resistance tests confirm all electrical components are protected against short circuits or leaks
- Power checks ensure CPFG control boxes, PLCs, and touchscreens receive proper voltage and respond correctly
- Core benefit: Reliable electrical systems are the foundation for safe vessel operation.
4. System Interface & Operation Testing: Usability matters
- Verify screen navigation, debugging mode, and alarm display
- Ensure commands are executed accurately and promptly
5. Functional Testing: Confirm real-world performance
- Normal & bypass operation: Test switching between operational modes
- Alarm simulation: Trigger gas, H₂S, and fire alarms to ensure proper system response
- Fan & airflow checks: Verify fans maintain positive pressure and adjust automatically
- Emergency shutdown: Simulate critical failures to confirm safe power cutoff
- Sensor integrity: Test responses to disconnected or faulty sensors
6. Conclusion: FAT ensures peace of mind
Successful FAT means the pressure vessel is ready for deployment:
- Provides a stable and safe operating environment
- Reduces the risk of system failure on-site
- Ensures emergency and alarm systems work as intended
- Complies with all relevant safety standards
Bottom line: FAT is the final checkpoint before your pressure vessel goes live, guaranteeing reliable, safe operation in the field.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Product brochures:
Offshore total pressurised container solutions
Offshore pressurised mud logging cabin brochure
MCC | Switchgear | VFD | VSD pressurised shelter
Keywords: #Pressure Vessel FAT,#Factory Acceptance Testing Guide,#PDU Pressure Vessel,#Shop-type Pressure Vessel,#Explosion-proof Pressure Vessel,#Electrical System Verification,#Emergency Shutdown Test,#Gas Detector Testing,#Positive Pressure Control,#Industrial Safety Testing
Written by Snowy
In high-risk industries such as petrochemicals, energy storage, and hazardous operations, positive pressure containers play a critical role in protecting both personnel and equipment. Ensuring their structural reliability is essential. One of the most important validation steps is the lifting test, which verifies the strength and stability of the container under operational conditions. This test is also key for obtaining international certifications like DNV 2.7-1 and EN 12079.
Purpose of the Lifting Test
The lifting test serves several critical functions:
Testing Procedure
The lifting test typically follows these steps:
Results and Applications
After testing, a third-party inspection report documents:
Conclusion
Lifting tests are a critical step in validating the structural safety of positive pressure containers. At TLS, all lifting tests are performed according to international standards, guaranteeing that every container delivered meets stringent safety and reliability requirements for high-risk environments.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Keywords:#Positive Pressure Container,#Lifting Test,#Structural Safety,#Load Capacity Verification,#Industrial Certification,#DNV 2.7-1,#EN 12079,#Hazardous Environment,#Factory Acceptance Test (FAT),#Container Stability
Purpose of the Lifting Test
The lifting test serves several critical functions:
- Verify load capacity: Ensures that lifting points, base frames, and the overall structure can safely handle both rated and overload conditions.
- Check structural stability: Confirms that the container maintains its shape during lifting and that welds and connections remain intact.
- Support certification: Provides third-party testing evidence required for international standard compliance and customer assurance.
Testing Procedure
The lifting test typically follows these steps:
- Applying load: The container is lifted using cranes at specified angles, often around 45°, to simulate real-world lifting scenarios.
- Load levels: The applied load ranges from 100% to 125% of the safe working load to evaluate performance under overload conditions.
- Test duration: The container is held in the lifted position for several minutes to observe any structural shifts.
- Inspection points: Lifting points, base frame, welds, and overall structure are carefully checked for permanent deformation or damage.
Results and Applications
After testing, a third-party inspection report documents:
- Applied loads, lifting angles, and duration
- Any observed structural deformation or damage
- Final pass/fail evaluation
Conclusion
Lifting tests are a critical step in validating the structural safety of positive pressure containers. At TLS, all lifting tests are performed according to international standards, guaranteeing that every container delivered meets stringent safety and reliability requirements for high-risk environments.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Keywords:#Positive Pressure Container,#Lifting Test,#Structural Safety,#Load Capacity Verification,#Industrial Certification,#DNV 2.7-1,#EN 12079,#Hazardous Environment,#Factory Acceptance Test (FAT),#Container Stability
Written by Snowy
In the manufacturing and application of modular containers, offshore containers, and various functional enclosures, watertightness is a critical factor for ensuring the safety of both equipment and personnel. Watertight testing not only verifies a container’s resistance to water but also directly impacts its service life, equipment protection, and operational safety.
1. Purpose of Watertight Testing
2. Importance of Testing Timing
The timing of watertight tests directly affects the accuracy of results and overall container quality:
3. Common Watertight Testing Methods
4. Key Considerations
5. Conclusion
Watertight testing is a critical part of container quality assurance and an essential measure to protect both equipment and personnel. Proper scheduling of test timing, selecting the right testing methods, and strict adherence to standards can minimize leakage risks and enhance container reliability.
Through staged testing and final verification, manufacturers can ensure that every container delivered maintains reliable watertight performance in real-world conditions.
TLS Offshore Containers / TLS Special Containers is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Keywords:#Watertight testing,#Container safety,#Equipment protection,#Personnel safety,#Modular container,#Offshore container,#Leak detection,#Hydrostatic testing,#Seal inspection,#Quality assurance
1. Purpose of Watertight Testing
- Prevent Equipment Damage from Water
- Ensure Personnel Safety
- Verify Design and Construction Quality
2. Importance of Testing Timing
The timing of watertight tests directly affects the accuracy of results and overall container quality:
- Mid-Production Testing
- Final Pre-Delivery Testing
3. Common Watertight Testing Methods
- Hydrostatic Pressure Testing
- Spray/Rain Simulation TestingSimulating natural rainfall or sea spray helps examine the sealing performance of doors, ventilation openings, and interfaces.
- Combination of Visual and Instrumental Inspection
4. Key Considerations
- Seal Material Inspection: Ensure that seals, flange connections, and welds are intact and undamaged.
- Pre-Test Cleaning: Keep the container interior and exterior clean to avoid false leak detection.
- Stage-by-Stage Documentation: Record each test result to track defect repairs and quality improvements.
- Environmental Control: Water temperature, pressure, and testing duration should comply with design specifications to ensure reliable results.
5. Conclusion
Watertight testing is a critical part of container quality assurance and an essential measure to protect both equipment and personnel. Proper scheduling of test timing, selecting the right testing methods, and strict adherence to standards can minimize leakage risks and enhance container reliability.
Through staged testing and final verification, manufacturers can ensure that every container delivered maintains reliable watertight performance in real-world conditions.
TLS Offshore Containers / TLS Special Containers is a global supplier of standard and customised containerised solutions.
Wherever you are in the world TLS can help you, please contact us.
Keywords:#Watertight testing,#Container safety,#Equipment protection,#Personnel safety,#Modular container,#Offshore container,#Leak detection,#Hydrostatic testing,#Seal inspection,#Quality assurance
Written by Snowy
Before a TLS special container leaves the facility, it undergoes a meticulous gauntlet of inspections. This rigorous pre-delivery testing isn't just about compliance—it’s about guaranteeing structural integrity, safety, and longevity in the world’s most demanding environments.
Understanding these essential checks is key to knowing you're investing in reliable, high-performance equipment. Here is an in-depth look at the container pre-delivery tests that make TLS containers worthy of your trust.
1. The Welding Test: Guaranteeing Core Strength
The foundation of any container's reliability is its structure, and the strength of the welds is non-negotiable. The Welding Test is critical for ensuring the container’s structural stability. It verifies the quality and strength of every joint to prevent catastrophic failures.
Purpose and Method: This test aims to confirm the quality of all welded joints and detect internal defects like porosity or weak connections. We use Visual Inspection for surface flaws like cracks, and Non-Destructive Testing (NDT), which includes advanced techniques like ultrasonic, X-ray, or magnetic particle testing, to find hidden flaws.
When It Happens: Conducted immediately after the welding process is complete. Any defects must be addressed before assembly to save time and cost.
2. The Lifting Test: Assessing Load Resilience
A container must be able to handle the extreme forces applied during loading, unloading, and transit. The Lifting Test evaluates the container’s response to these stresses, ensuring its stability and the integrity of the critical lifting points.
Purpose and Method: The goal is to ensure the container can safely handle its designed load and unexpected stress during transportation. We perform a Load Test by applying forces that exceed the rated capacity to simulate worst-case scenarios. Crucially, a Lifting Point Check verifies the strength of the lifting ears against international safety standards.
When It Happens: This check is performed after structural welding and assembly but before applying any surface treatments, as the raw structure needs to prove its strength first.
3. The Watertightness Test: Protecting Your Investment
Cargo protection is paramount. The Watertightness Test is essential to confirm the container’s resilience against environmental factors—specifically water intrusion from rain, snow, or humidity.
Purpose and Method: This test checks the sealing capability against external moisture. We use a Rain Test, utilizing high-pressure water jets or simulated heavy rainfall to check for leaks. A focused Seal Check examines critical areas like door seals, welded seams, and joints to ensure they meet stringent water resistance standards.
When It Happens: The test is conducted after door seals are installed and welding is complete, but typically before final surface treatments, which allows easier identification and repair of any leakage points.
4. The Paint Test: Durability Meets Presentation
The external coating is more than just aesthetics; it's the container's first line of defense against corrosion and environmental damage. The Paint Test ensures the longevity and visual quality of the surface coating.
Purpose and Method: This test focuses on the coating's durability, adhesion, and appearance. We use an Adhesion Test (such as cross-cut or pull-off methods) to verify the paint’s bond to the container surface, ensuring it won't peel or flake. Film Thickness Measurement is taken with specialized gauges, as proper film thickness is essential for long-term protective quality. Finally, a thorough Visual Inspection checks for uniformity, bubbles, cracks, or peeling.
When It Happens: This test is performed after the painting process is complete to validate the container’s visual and protective qualities.
The Rigorous TLS Test Sequence: A Step-by-Step Guarantee
To maximize efficiency and quality assurance, TLS follows a precise, integrated inspection flow:
Welding Test→Watertightness Test (Preliminary)→Lifting Test→Surface Treatment & Painting→Watertightness Test (Final)
Only after successfully passing all these checks is the container accepted and prepared for delivery. This commitment to quality is what guarantees performance you can rely on for your most demanding applications.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Keywords: #TLS special containers, #Container pre-delivery tests, #Special container quality assurance, #Container welding test NDT, #ISO container lifting test, #Container watertightness test methods, #Container paint adhesion testing, #Industrial container structural integrity, #Custom container inspection process, #Pre-shipment container testing sequence
Understanding these essential checks is key to knowing you're investing in reliable, high-performance equipment. Here is an in-depth look at the container pre-delivery tests that make TLS containers worthy of your trust.
1. The Welding Test: Guaranteeing Core Strength
The foundation of any container's reliability is its structure, and the strength of the welds is non-negotiable. The Welding Test is critical for ensuring the container’s structural stability. It verifies the quality and strength of every joint to prevent catastrophic failures.
Purpose and Method: This test aims to confirm the quality of all welded joints and detect internal defects like porosity or weak connections. We use Visual Inspection for surface flaws like cracks, and Non-Destructive Testing (NDT), which includes advanced techniques like ultrasonic, X-ray, or magnetic particle testing, to find hidden flaws.
When It Happens: Conducted immediately after the welding process is complete. Any defects must be addressed before assembly to save time and cost.
2. The Lifting Test: Assessing Load Resilience
A container must be able to handle the extreme forces applied during loading, unloading, and transit. The Lifting Test evaluates the container’s response to these stresses, ensuring its stability and the integrity of the critical lifting points.
Purpose and Method: The goal is to ensure the container can safely handle its designed load and unexpected stress during transportation. We perform a Load Test by applying forces that exceed the rated capacity to simulate worst-case scenarios. Crucially, a Lifting Point Check verifies the strength of the lifting ears against international safety standards.
When It Happens: This check is performed after structural welding and assembly but before applying any surface treatments, as the raw structure needs to prove its strength first.
3. The Watertightness Test: Protecting Your Investment
Cargo protection is paramount. The Watertightness Test is essential to confirm the container’s resilience against environmental factors—specifically water intrusion from rain, snow, or humidity.
Purpose and Method: This test checks the sealing capability against external moisture. We use a Rain Test, utilizing high-pressure water jets or simulated heavy rainfall to check for leaks. A focused Seal Check examines critical areas like door seals, welded seams, and joints to ensure they meet stringent water resistance standards.
When It Happens: The test is conducted after door seals are installed and welding is complete, but typically before final surface treatments, which allows easier identification and repair of any leakage points.
4. The Paint Test: Durability Meets Presentation
The external coating is more than just aesthetics; it's the container's first line of defense against corrosion and environmental damage. The Paint Test ensures the longevity and visual quality of the surface coating.
Purpose and Method: This test focuses on the coating's durability, adhesion, and appearance. We use an Adhesion Test (such as cross-cut or pull-off methods) to verify the paint’s bond to the container surface, ensuring it won't peel or flake. Film Thickness Measurement is taken with specialized gauges, as proper film thickness is essential for long-term protective quality. Finally, a thorough Visual Inspection checks for uniformity, bubbles, cracks, or peeling.
When It Happens: This test is performed after the painting process is complete to validate the container’s visual and protective qualities.
The Rigorous TLS Test Sequence: A Step-by-Step Guarantee
To maximize efficiency and quality assurance, TLS follows a precise, integrated inspection flow:
Welding Test→Watertightness Test (Preliminary)→Lifting Test→Surface Treatment & Painting→Watertightness Test (Final)
Only after successfully passing all these checks is the container accepted and prepared for delivery. This commitment to quality is what guarantees performance you can rely on for your most demanding applications.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Keywords: #TLS special containers, #Container pre-delivery tests, #Special container quality assurance, #Container welding test NDT, #ISO container lifting test, #Container watertightness test methods, #Container paint adhesion testing, #Industrial container structural integrity, #Custom container inspection process, #Pre-shipment container testing sequence
Written by Oliver
In the application of functional containers, transportation is often the most overlooked yet most critical step. Whether it’s intercontinental sea voyages or rough overland journeys, containers are exposed to far more demanding conditions than in daily use. TLS understands that a container can only be considered truly reliable if it can withstand the challenges of transport.
1. Redundant Strength in Structural Design
From the very beginning of the design process, TLS follows international standards such as DNV 2.7-1 and CSC certification for structural modeling and strength calculation. Beyond meeting basic load requirements, we add strength redundancy to critical points such as corner castings, bottom beams, and top beams. This ensures that even under extreme loads, impacts, or stacking pressure, the container structure will remain stable without deformation.
2. Finite Element Analysis (FEA) Verification
Before production, TLS applies finite element analysis (FEA) to simulate stress concentrations, twisting, and vibrations that may occur during transport. This digital approach helps identify weak points that might not be visible through traditional engineering experience, allowing us to optimize the design at the drawing stage.
3. High-Strength Materials and Welding Techniques
Material selection plays a decisive role in load-bearing performance. TLS uses high-strength marine-grade steel in line with international standards, combined with full-penetration welding and multi-layer weld seams. This creates a rigid frame structure that maintains integrity even under sudden impact loads, such as those caused by heavy waves or container lifting.
4. Dynamic Transport Testing and Validation
In addition to theoretical design and digital simulations, TLS conducts dynamic transport testing on finished products. These include lifting, drop, and long-distance vibration simulations, ensuring that containers can endure extreme transport conditions. Only products that pass these tests are delivered to customers.
5. Practical Experience in Real Projects
TLS containers have successfully passed the test of complex real-world transport conditions:
Conclusion
Transportation is not just a step in delivery—it is the final proof of product quality. With robust design, advanced analysis, strict testing, and proven field experience, TLS ensures that every container can withstand extreme conditions and provide reliable protection for its contents.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Keywords:#TLS containers,#Functional containers,#Extreme transport conditions,#Structural reliability,#DNV 2.7-1,#CSC certification,#Redundant design,#Finite element analysis (FEA),#Stress simulation,#High-strength steel,#Full-penetration welding,#Dynamic transport testing,#Offshore transport,#Onshore transport,#Equipment protection
1. Redundant Strength in Structural Design
From the very beginning of the design process, TLS follows international standards such as DNV 2.7-1 and CSC certification for structural modeling and strength calculation. Beyond meeting basic load requirements, we add strength redundancy to critical points such as corner castings, bottom beams, and top beams. This ensures that even under extreme loads, impacts, or stacking pressure, the container structure will remain stable without deformation.
2. Finite Element Analysis (FEA) Verification
Before production, TLS applies finite element analysis (FEA) to simulate stress concentrations, twisting, and vibrations that may occur during transport. This digital approach helps identify weak points that might not be visible through traditional engineering experience, allowing us to optimize the design at the drawing stage.
3. High-Strength Materials and Welding Techniques
Material selection plays a decisive role in load-bearing performance. TLS uses high-strength marine-grade steel in line with international standards, combined with full-penetration welding and multi-layer weld seams. This creates a rigid frame structure that maintains integrity even under sudden impact loads, such as those caused by heavy waves or container lifting.
4. Dynamic Transport Testing and Validation
In addition to theoretical design and digital simulations, TLS conducts dynamic transport testing on finished products. These include lifting, drop, and long-distance vibration simulations, ensuring that containers can endure extreme transport conditions. Only products that pass these tests are delivered to customers.
5. Practical Experience in Real Projects
TLS containers have successfully passed the test of complex real-world transport conditions:
- Offshore projects: Equipment modules shipped with floating platforms across oceans, facing both waves and humid marine climates.
- Onshore projects: Energy storage containers transported over long distances through mountainous terrain, exposed to vibration and altitude differences.
Conclusion
Transportation is not just a step in delivery—it is the final proof of product quality. With robust design, advanced analysis, strict testing, and proven field experience, TLS ensures that every container can withstand extreme conditions and provide reliable protection for its contents.
TLS Offshore Containers / TLS Energy is a global supplier of standard and customised containerised solutions.
Wherever you are in the world, TLS can help you. Please contact us.
Keywords:#TLS containers,#Functional containers,#Extreme transport conditions,#Structural reliability,#DNV 2.7-1,#CSC certification,#Redundant design,#Finite element analysis (FEA),#Stress simulation,#High-strength steel,#Full-penetration welding,#Dynamic transport testing,#Offshore transport,#Onshore transport,#Equipment protection
