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ISO 15761 Manufacturing Process for Gate Valves
The manufacturing process of gate valves under the ISO 15761 standard ensures high-quality, reliable, and durable products for industrial applications. This standard specifies the requirements for design, materials, and testing of steel gate valves used in petroleum, petrochemical, and related industries.
Key Stages in the Manufacturing Process
1. Material Selection
Manufacturers must use materials that comply with ISO 15761 specifications, including carbon steel, stainless steel, or alloy steel. The chosen materials must withstand high pressure, temperature, and corrosive environments.
2. Casting or Forging
The valve body and other major components are typically produced through casting or forging processes. These methods ensure structural integrity and dimensional accuracy according to ISO standards.
3. Machining
Precision machining is performed to achieve the required tolerances and surface finishes. Critical components like the gate, seats, and stem are carefully machined to ensure proper sealing and smooth operation.
4. Assembly
All components are assembled following strict quality control procedures. The gate valve must operate smoothly without leakage when tested according to ISO 15761 requirements.
5. Testing and Inspection
Each valve undergoes rigorous testing, including:
- Hydrostatic testing
- Shell test
- Seat leakage test
- Functional operation test
Quality Assurance
ISO 15761 mandates comprehensive documentation and traceability throughout the manufacturing process. This includes material certificates, heat treatment records, and test reports to ensure full compliance with the standard.
Benefits of ISO 15761 Compliance
Gate valves manufactured according to ISO 15761 offer:
- Enhanced safety and reliability
- Interchangeability between manufacturers
- Global market acceptance
- Long service life in demanding applications
By adhering to the ISO 15761 manufacturing process, producers can deliver gate valves that meet the highest industry standards for performance and durability in critical applications.