ASME U Stamp Pig Launcher Vessel for Shell and Tube Heat Exchanger System

Product Specification

ASME U Stamp Pig Launcher Vessel for Shell and Tube Heat Exchanger System

YUHONG is a premier provider of high-specification equipment for the global oil, gas, and petrochemical sectors. We excel in the design and fabrication of ASME U Stamp Certified pressure components, ensuring that every product meets the most rigorous international safety and quality standards.

1. ASME Boiler and Pressure Vessel Code (BPV Code) Overview

Our products are engineered and manufactured in strict accordance with the ASME BPV Code, the international benchmark for pressure equipment safety and quality. The code is organized into the following specialized sections:

• Sec. I: Power Boilers

• Sec. II: Materials

• Sec. III: Nuclear Fuel Containers

• Sec. IV: Heating Boilers

• Sec. V: Non-Destructive Examination (NDE)

• Sec. VI: Recommended Rules for the Care and Operation of Heating Boilers

• Sec. VII: Recommended Guidelines for the Care of Power Boilers

• Sec. VIII: Pressure Vessels

• Sec. IX: Welding and Brazing Qualifications

• Sec. X: Fiber-Reinforced Plastic Pressure Vessels

• Sec. XI: Rules for Inservice Inspection of Nuclear Power Plant Components

• Sec. XII: Rules for Construction and Continued Service of Transport Tanks

2. Detailed Design Scope: ASME Section VIII

We specialize in the design and construction of vessels following ASME Section VIII, which is categorized by pressure requirements and design methodologies:

• Division 1 (Div. I): Standard pressure vessels for internal or external pressures up to 3,000 PSI. Design is based on established "Design by Formula" rules.

• Division 2 (Div. II): Alternative rules for pressures up to 10,000 PSI. This utilizes "Design by Analysis," allowing for more precise calculations and often resulting in more economical, lighter-weight vessels for higher pressures.

• Division 3 (Div. III): Alternative rules for High-Pressure Vessels designed for pressures exceeding 10,000 PSI.

3. Content Structure of ASME Section VIII, Div. 1

To ensure full compliance and traceability, our documentation follows the structured subsections of Section VIII, Div. 1:

• Subsection A: General Requirements (UG) covering all methods of construction and all materials.

• Subsection B: Specific requirements based on Methods of Fabrication, including:

  • Welding (UW)

  • Forging (UF)

  • Brazing (UB)

• Subsection C: Specific requirements based on Classes of Materials, including:

  • Carbon and Low Alloy Steels (UCS)

  • High Alloy Steels (UHA)

  • Heat Exchanger specialized parts (Part UHX)

• Mandatory Appendices: Essential rules for specific design types or inspection methods.

• Non-mandatory Appendices: Supplemental information and recommended practices.

4. Global Design References & Specifications

In addition to the core ASME Codes, we integrate specific industry and client standards to meet diverse project requirements:

• Primary Codes: ASME BPV-SEC. VIII, DIV. I & ASME BPV-SEC. II

Contractor & Owner Specifications: We are experienced in adhering to stringent internal standards such as:

• Foster Wheeler company design manuals

• IPS (Iranian Petroleum Standards)

• NIOC (National Iranian Oil Company) standards, and other regional or company-specific technical requirements.