In-Service Pipeline Residual Stress Re-Testing Tester with Fixed-Point Monitoring
Product Summary
This portable tester enables fixed-point re-testing on in-service pipelines to verify stress relaxation over time. It is an essential tool for petrochemical plants to monitor residual stress changes without interrupting operations.
Key Features
- Enables fixed-point re-testing on in-service pipelines to verify stress relaxation.
- Completes stress inspection at dozens of points within a short turnaround outage.
- Provides residual stress safety margin data for life-extension assessment.
- Intrinsically safe for explosive petrochemical plant environments.
- Portable and easy to set up on existing pipework.
Technical Specifications
| Maximum Load | 1000 N (Max) |
| Actuation Range | 25 mm |
| Loading Speed | 0.01~30 mm/min |
| Data Acquisition Rate | 100 Hz |
| Rated Voltage of Motor | 2.1 V |
| Rated Current of Motor | 3 A |
| Wired/Wireless Power | 220 V / 24V |
| Testing Range | Macro-scale |
| Indentation Depth | 60~120 μm |
Models and Options
Model PMA-1010. Custom fixtures for various pipe diameters and materials.
Materials and Structure
Constructed from cemented carbide, stainless steel, and aluminum alloy for durability and corrosion resistance.
Applications
Ideal for petrochemical plants, oil and gas pipelines, and any in-service piping requiring periodic stress monitoring.
Customization
We can develop specialized clamping systems for different pipe sizes.
Case Study
Used by a special inspection institute in China for 10 years to test pipelines, ensuring safety and stability.
FAQ
Q1: Why fixed-point re-testing is important?
It allows monitoring stress relaxation and changes at critical locations over time.
Q2: Can it be used without shutting down the pipeline?
Yes, it is designed for in-service testing.
Q3: How accurate is the measurement?
With 100 Hz data acquisition, it provides reliable results.
Q4: Is it compatible with various pipe materials?
Yes, it can test most metals, including carbon and stainless steel.
Q5: What power options are available?
220V wired or 24V wireless.
Q6: Does it come with software?
Yes, it includes data processing and analysis software.
Inquiry Information
Contact Vincent Zhang at +86 181-1890-2332 or email vincent_zhang@zhanghuayaoji.com.
Images
Image ID 417: Fixed-point re-testing on pipelines. Image ID 416: Fast inspection during outage. Image ID 411: Safety margin data.
