Views: 0 Author: J-VALVES Publish Time: 2025-05-31 Origin: Site
In high-risk industries such as petroleum, natural gas, and chemical engineering, the fire resistance of valves is of crucial importance. As a widely used type of valve, the fire safety certification of J-VALVES BALL VALVES is a key aspect in ensuring the safety of equipment and personnel. This article will compare the two major international standards,
API 607 and ISO 10497, in detail and provide an in-depth interpretation of the design and testing requirements for J-VALVES BALL VALVES under these standards.
API 607 is a standard formulated by the American Petroleum Institute (API), specifically for the fire testing of quarter-turn valves and valves with non-metallic seats. It is applicable to soft-sealed valves such as BALL VALVES, butterfly valves, and plug valves, mainly evaluating the sealing performance and structural integrity of valves under fire conditions. ISO 10497, on the other hand, is a similar standard issued by the International Organization for Standardization (ISO), which is basically equivalent to API 607 in terms of technical requirements and testing methods.
Comparison Table of Standards
| Items | API 607 | ISO 10497 |
|---|---|---|
| Scope of Application | Quarter-turn valves and valves with non-metallic seats | Ball valves, butterfly valves, etc. for fire testing |
| Testing Temperature | 750°C - 1000°C | 750°C - 1000°C |
| Testing Time | At least 30 minutes | At least 30 minutes |
| Leakage Requirements | Need to meet leakage limits during and after fire exposure | Need to meet leakage limits during and after fire exposure |
| Applicable Industries | Petroleum, natural gas, chemical engineering | Universally applicable worldwide, especially widely used in Europe and Asia |
The test valve shall be fully exposed to the flame, and the flame temperature shall be maintained between 750°C and 1000°C.
During the testing process, the valve stem and passage of the valve should be kept horizontal.
2.Testing Process
Initial Inspection: Before testing, the valve needs to be filled with water pressure and closed.
Combustion Test: The valve shall be continuously burned in the flame for 30 minutes, and the leakage situation shall be recorded during this period.
Cooling Test: After the combustion ends, the valve needs to be naturally cooled to 100°C, and the cooling time shall be recorded.
Low-Pressure Test: After cooling, the valve shall undergo a low-pressure test to ensure that there is no leakage under the nominal pressure.
3.Leakage Limits
During the fire exposure, the leakage of the valve seat shall meet the standard requirements.
The external leakage shall be strictly controlled during both the combustion and cooling periods.
The testing requirements of ISO 10497 are basically the same as those of API 607, but there may be slight differences in some details due to regional regulations. For example, ISO 10497 pays more attention to the integrity of the test report and requires detailed recording of data such as temperature changes and leakage amounts during the testing process.
The design of J-VALVES ball valves needs to meet the fire protection requirements of API 607 and ISO 10497. The key design standards include:
Fireproof Sealing Structure: The valve seats and seals shall be made of fireproof materials.
High-Temperature Resistance: The valve materials shall be able to withstand high-temperature flames without deformation or damage.
Bidirectional Sealing Design: For valves with bidirectional sealing, the sealing performance in both directions needs to be tested separately.
1.Testing Process
Document Preparation: Submit technical documents such as valve design drawings and material specifications.
Sample Preparation: Select test samples that meet the standard requirements.
On-site Testing: Conduct fire tests in a third-party laboratory and record various data.
Result Analysis: The testing agency shall issue a report to evaluate whether the valve meets the standards.
2.Certification
After passing the tests, the valve will obtain the API 607 or ISO 10497 certification certificate, proving that its fire resistance performance meets international standards.
API 607 and ISO 10497 are currently the most authoritative international standards for fire testing of valves. J-VALVES BALL VALVES need to strictly follow these standards during the design and testing processes to ensure safety and reliability under extreme conditions such as fires. BALL VALVES with fireproof certification can not only effectively prevent the spread of fires but also protect the safety of equipment and personnel, and they are an indispensable safety guarantee in high-risk industries.
When choosing fireproof ball valves, it is recommended to give priority to products that have passed the API 607 or ISO 10497 certification to ensure that their fireproof performance meets international standards.
