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Comprehensive Overview of Valve Manufacturing Processes

Table of Contents

Behind the Scenes: Step-by-Step Valve Manufacturing
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At NICO VALVES CORP., our commitment to quality is reflected in every stage of our manufacturing process. Below is an in-depth look at the key steps that ensure our valves meet the highest standards of performance and reliability.

1. Drawing Design
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The process begins with meticulous drawing design, where our engineering team develops precise technical drawings tailored to customer requirements and industry standards.

2. Pilot Casting
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Pilot casting is conducted to validate the design and ensure the casting process will yield components with the desired properties and dimensions.

3. Raw Material Control
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Strict raw material control is implemented to guarantee that only high-quality materials are used, ensuring durability and performance in the final product.

4. Casting
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The casting process transforms raw materials into the basic shapes required for valve components, using advanced techniques to achieve structural integrity and dimensional accuracy.

5. Heat Treatment
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Heat treatment is applied to enhance the mechanical properties of the cast components, such as strength and toughness, preparing them for further processing.

6. Parts Inspection
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Comprehensive inspection of all parts is carried out to detect any defects or inconsistencies, ensuring that only components meeting our quality criteria proceed to the next stage.

7. Machining
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Precision machining refines the components to their final dimensions and surface finishes, utilizing state-of-the-art equipment for optimal accuracy.

  • First Piece Inspection: The initial machined piece is thoroughly checked to confirm adherence to specifications.
  • In-Process Inspection: Ongoing inspections during machining maintain consistent quality.
  • Welding Hard Facing: Where required, hard facing is applied to enhance wear resistance.

8. Lapping
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Lapping is performed to achieve the required surface flatness and smoothness, which is critical for valve sealing performance.

  • Casting Stock Control: Inventory management ensures the availability of castings for production.
  • Parts Stock Control: Finished parts are systematically organized for efficient assembly.

9. Cleaning
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All components undergo thorough cleaning to remove contaminants and prepare them for assembly.

10. Assembly
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Skilled technicians assemble the cleaned components into complete valve units, following precise procedures to ensure proper fit and function.

11. Pressure Test
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Each assembled valve is subjected to rigorous pressure testing to verify its integrity and performance under operating conditions.

12. Packing & Shipment
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Valves that pass all inspections and tests are carefully packed to prevent damage during transit and prepared for shipment to customers worldwide.

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