Views: 0 Author: J-VALVES Publish Time: 2024-12-05 Origin: Site
ISO 15761 specifies the requirements for steel gate valves, globe valves, and check valves with sizes up to DN 100 for the petroleum and natural gas industries. This standard covers the design, materials, dimensions, and testing of these valves to ensure their reliability and safety in demanding environments.
• Material Selection: ISO 15761 recommends the use of high-performance materials such as stainless steel (e.g., 316L) and other corrosion-resistant alloys. These materials provide excellent resistance to seawater corrosion and are suitable for long-term exposure in marine environments.
• Coating Systems: The standard emphasizes the importance of protective coatings to enhance corrosion resistance. Common coatings include epoxy, polyurethane, and other marine-grade coatings that provide a barrier against seawater.
• Additional Measures: ISO 15761 also suggests the use of cathodic protection systems, such as sacrificial anodes or impressed current systems, to further protect against corrosion. These systems can significantly extend the lifespan of the valves in corrosive environments.
• Testing and Certification: Valves must undergo rigorous testing, including hydrostatic and pneumatic tests, to ensure compliance with the standard. Testing protocols are designed to simulate the demanding conditions of marine environments.
JIS F7405 specifies the requirements for gate valves used in marine applications. This standard covers the design, materials, dimensions, and testing of these valves to ensure their reliability and safety in demanding environments.
• Material Selection: JIS F7405 recommends the use of materials such as carbon steel, stainless steel, and other corrosion-resistant alloys. These materials provide good resistance to seawater corrosion and are suitable for long-term exposure in marine environments.
• Coating Systems: The standard emphasizes the importance of protective coatings to enhance corrosion resistance. Common coatings include epoxy, polyurethane, and other marine-grade coatings that provide a barrier against seawater.
• Additional Measures: JIS F7405 also suggests the use of cathodic protection systems, such as sacrificial anodes or impressed current systems, to further protect against corrosion. These systems can significantly extend the lifespan of the valves in corrosive environments.
• Testing and Certification: Valves must undergo comprehensive testing, including hydrostatic and pneumatic tests, to ensure compliance with the standard. Testing protocols are designed to simulate the demanding conditions of marine environments.
| Feature | ISO 15761 Ball Valves | JIS F7405 Gate Valves |
| Material Selection | Stainless steel, high-temperature alloys | Carbon steel, stainless steel, high-temperature alloys |
| Coating Systems | Epoxy, polyurethane, marine-grade coatings | Epoxy, polyurethane, marine-grade coatings |
| Additional Measures | Cathodic protection systems (sacrificial anodes, impressed current) | Cathodic protection systems (sacrificial anodes, impressed current) |
| Testing and Certification | Rigorous hydrostatic and pneumatic tests | Comprehensive hydrostatic and pneumatic tests |
| Applications | Marine systems, flow control | Marine systems, on-off control |
