– Corrosion-Resistant, Precise Temperature Control for LPG Corrosivity Testing
In the quality control of liquefied petroleum gas (LPG), copper strip corrosion is an important indicator for evaluating the corrosive tendency of LPG and its components toward copper containers, pipelines, and equipment. The DFYF-802 LPG Copper Strip Corrosion Tester is designed and manufactured in strict accordance with the SH/T 0232 standard. It is suitable for copper strip corrosion determination of LPG and similar volatile petroleum products – making it essential equipment for refineries, gas filling stations, quality inspection centers, and third-party laboratories.
1. Standard Compliance and Applicable Samples
The DFYF-802 complies with the following standard:
SH/T 0232 (Test method for copper strip corrosion of liquefied petroleum gas)
Applicable sample types:
Liquefied petroleum gas (LPG)
Propane, butane, and mixed liquefied gases
Other volatile petroleum products requiring copper strip corrosion testing
The copper strip corrosion test result directly reflects the content of active sulfur compounds (such as hydrogen sulfide and elemental sulfur) in the product – a key indicator for ensuring the safety of storage, transportation equipment, and end-user applications.
2. Key Technical Specifications
Parameter | Specification |
Power Supply | AC220V, 50Hz |
Heating Power | 1600W |
Temperature Range | Ambient ~ 99.9°C |
Temperature Accuracy | ±0.1°C |
Stirring Motor | 15W |
3. Performance Features
3.1 Compliant with SH/T 0232 Standard
The instrument is fully designed according to the SH/T 0232 standard – test conditions, operating procedures, and result evaluation all meet the specifications, ensuring authoritative and comparable test results.
3.2 Stainless Steel Bath – Corrosion-Resistant with Long Service Life
The bath is made of stainless steel, offering excellent corrosion resistance and the ability to withstand long-term exposure to water bath and chemical media – providing a long service life.
3.3 Digital Temperature Control – Precise and Stable
The temperature control system consists of a digital temperature controller and associated circuits, offering the following advantages:
Temperature adjustment is intuitive and convenient
Real-time display of bath temperature
Control accuracy as high as ±0.1°C – ensuring consistent test conditions
3.4 Compact Structure – Reliable Operation
The instrument is composed of a bath, temperature controller, stirring motor, heater, and temperature control circuit. The compact and reliable structure fully meets the needs of routine laboratory testing.
3.5 Stirring Motor for Uniform Temperature Distribution
Equipped with a 15W stirring motor that continuously agitates the bath medium, ensuring uniform temperature distribution throughout the bath and eliminating local temperature differences that could affect test results.
4. Significance of Copper Strip Corrosion Testing
Corrosive Source | Hazard | Testing Significance |
Hydrogen sulfide | Corrodes copper, silver, and other metals | Causes corrosion of valves, fittings, and storage tanks |
Elemental sulfur | Highly corrosive | Seriously affects equipment safety |
Other active sulfur compounds | Accelerates metal aging | Reduces equipment service life |
Copper strip corrosion testing effectively screens the content of active sulfur compounds in LPG, providing safety assurance for product dispatch, transportation, and use.
5. Comparison with Traditional Copper Strip Corrosion Testers
Feature | Traditional Basic Corrosion Tester | DFYF-802 Professional Model |
Bath material | Ordinary metal or glass | Stainless steel – corrosion-resistant, long life |
Temperature control method | Manual or analog control | Digital controller – intuitive and precise |
Temperature accuracy | Typically ±1°C or lower | ±0.1°C high accuracy |
Temperature uniformity | Natural convection, temperature differences | Forced circulation with stirring motor – uniform |
Structural design | Loose or basic | Compact and reliable – suitable for laboratories |
Standard compliance | Partial | Fully compliant with SH/T 0232 |
6. Typical Applications
Refinery quality control laboratories – Copper strip corrosion testing of LPG before product dispatch
LPG filling stations – Corrosivity control of feed gas and finished products
Quality inspection centers – LPG quality supervision and inspection
Third-party testing agencies – Standard copper strip corrosion analysis of batch samples
Chemical enterprises – Corrosivity evaluation of propane, butane, and other chemical raw materials
7. Service and Support
We provide full technical support – from installation and commissioning to operator training and after-sales maintenance. The DFYF-802, with its corrosion-resistant design, precise temperature control, and compact structure, is a reliable tool for your LPG copper strip corrosion testing needs.
About Us
With nearly 40 years of specialized experience, Dalian Analysis Instrument Factory is a leading manufacturer of petroleum product testing instruments. We are ISO 9001 (2000) certified, ensuring reliable quality assurance in design, production, and after-sales service.
Our product line covers more than 100 varieties, including analyzers for gasoline, kerosene, diesel, lubricating oils, greases, and general laboratory equipment.
Contact Us
For standard models or customized solutions – we are here to help you improve your LPG corrosivity testing capabilities.
Sales Email: [lovecarlos2000@gmail.com]
24-Hour Hotline: +86 15941156556
