Portable Over-Service Pressure Vessel Indentation Tester PMT-1000
The PMT-1000 is a portable nondestructive indentation tester designed for over-service pressure vessel inspection. It performs in-situ mechanical evaluation of welds, HAZ, and base metal without sampling, delivering yield and tensile parameters for remaining life assessment. Its micron-scale indentations do not affect the safety margin, and no post-test welding or heat treatment is required.
Key Features
- In-Situ Without Sampling: Perform mechanical evaluation directly on welds, HAZ, and base metal, eliminating the need for sample extraction.
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- No Shutdown or Emptying: Inspect shell stress under operating conditions, reducing downtime and operational disruption.
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- Micron Indentation Safety: Leaves indentations only 60–120 μm deep, which do not affect the pressure vessel's safety margin.
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- Strength Parameters Output: Outputs yield and tensile strength parameters relevant to remaining life assessment.
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- Fast Testing: Completes indentation in seconds, greatly reducing downtime for scheduled inspections.
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- No Post-Test Treatment: No welding or heat treatment required after testing; vessel returns to service immediately.
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Technical Specifications
| Parameter | Value |
|---|
| Model | PMT-1000 |
| Type | Portable Nondestructive Indentation Tester |
| 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 / 24 V |
| Testing Range | Macro-scale |
| Indentation Depth | 60–120 μm |
| Materials Tested | Cemented carbide, Stainless steel, Aluminum alloy |
Models and Options
Standard model PMT-1000 includes the tester unit, laptop computer (matched equipment for data processing), and necessary cabling. Available options include custom fixtures for different working conditions (based on company profile: designed and matched a variety of supporting fixtures).
Materials and Structure
The instrument is capable of testing materials including cemented carbide, stainless steel, and aluminum alloy. Its portable structure allows on-site installation and positioning, with operation modes covering instrument preparation, parameter configuration, data processing, and result output.
Applications
Suitable for industries such as petrochemical, energy and power, wind power and renewable energy, aerospace, pharmaceutical, fine chemical, new energy/new materials, pesticide manufacturing. It is applied to periodic inspection of pressure vessels, online inspection of pressure piping, in-service equipment life assessment, and weld quality testing. Inspects spherical tanks, horizontal vessels, columns, heat exchangers, and other pressure equipment. Complements conventional NDT (UT, RT) by adding the mechanical property dimension. Also maps plastic zone changes around stress corrosion cracks to warn of crack growth.
Customization
Wuxi Zhanghua provides customized technical solutions for clients, including support fixtures for different working conditions. The equipment is compatible with laptop computers for data processing and analysis. Please contact our engineering team to discuss your specific inspection requirements.
Case Study
Chemical Plant - China: 1 unit used to test equipment. After 10 years of service, stable operation achieved. Highlight: "Minutes Results in Just - Efficient, Fast, and Highly Accurate."
Special Inspection Institute - China: 1 unit used to test special equipment. After 10 years of service, stable operation. Highlight: "Minutes Results in Just - Efficient, Fast, and Highly Accurate."
FAQ
Q: Can this tester be used on a pressure vessel while it is still in service?
A: Yes, the PMT-1000 can inspect shell stress directly under operating conditions without shutdown or emptying, as demonstrated in field tests.
Q: Will the indentation damage the vessel surface?
A: No, it leaves micron-sized indentations (60–120 μm) that do not affect the pressure vessel's safety margin.
Q: What parameters does it measure?
A: It outputs strength parameters such as yield and tensile strength, which are relevant to remaining life assessment.
Q: Does it require post-test welding or heat treatment?
A: No, it requires no post-test welding or heat treatment – the vessel returns to service immediately.
Q: How fast is the testing process?
A: It completes indentation in seconds, greatly reducing downtime for scheduled inspections.
Q: Can it test various materials?
A: Yes, it is designed to test cemented carbide, stainless steel, and aluminum alloy.
Q: What is the maximum load capacity?
A: The maximum load is 1000 N, with adjustable loading speed from 0.01 to 30 mm/min.
Q: What is the power requirement?
A: It supports both wired and wireless power options: 220 V and 24 V.
Inquiry Information
Related Images and Alt Suggestions
Below are representative images with suggested filenames and alt text for your listing:
| Filename | Alt Text |
|---|
| indentation-tester-pmt1000-in-situ-welds.jpg | PMT-1000 performing in-situ mechanical evaluation on welds, HAZ, and base metal without sampling |
| indentation-tester-pmt1000-micron-indentation.jpg | Micron indentations left by PMT-1000 on pressure vessel surface |
| indentation-tester-pmt1000-shell-stress.jpg | PMT-1000 inspecting shell stress under operating conditions without shutdown |
| indentation-tester-pmt1000-material-aging.jpg | PMT-1000 reflecting material aging and degradation under actual service environment |
| indentation-tester-pmt1000-strength-parameters.jpg | PMT-1000 outputting yield and tensile strength parameters |
| indentation-tester-pmt1000-fast-indentation.jpg | PMT-1000 completing indentation in seconds |
| indentation-tester-pmt1000-crack-warning.jpg | PMT-1000 mapping plastic zone changes around stress corrosion cracks |
| indentation-tester-pmt1000-spherical-tanks.jpg | PMT-1000 used for spherical tanks, horizontal vessels, columns, heat exchangers |
| indentation-tester-pmt1000-ndt-complement.jpg | PMT-1000 complementing conventional NDT (UT, RT) |
| indentation-tester-pmt1000-no-post-treatment.jpg | PMT-1000 requiring no post-test welding or heat treatment |
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