ASME ASNI API Bellows Sealed Gate Valve: Applications, Features & Specifications

The ASME ASNI API Bellows Sealed Gate Valve is suitable for various pipelines with Class 150～900, PN1.0～6.0MPa, and operating temperatures of -29～425℃ (carbon steel) and -29～500℃ (stainless steel). It is used to cut off or connect the medium in the pipeline. By selecting different materials, the bellows sealed gate valve can be applied to various media such as water, steam, oil products, acetic acid, oxidizing media, and urea respectively.

Structure Features of ASME ASNI API Bellows Sealed Gate Valve

• Reasonable product structure, reliable sealing, excellent performance, and beautiful appearance;

• The sealing surface is overlay welded with Co-based cemented carbide, featuring wear resistance, corrosion resistance, good anti-friction performance, and long service life;

• The valve stem is quenched and tempered with surface nitriding treatment, having good corrosion resistance and anti-friction performance;

• Dual sealing for more reliable performance;

• Intuitive indication of the valve stem lifting position;

• The part materials, flanges, and butt weld end dimensions can be reasonably selected according to actual working conditions or user requirements to meet various engineering needs.

Design Specifications of ASME ASNI API Bellows Sealed Gate Valve

• Design Standards: API 600, ASME B16.34, GB/T 12234

• Structure Length: ASME B16.10, GB/T 12221

• Connection Standards: ASME B16.5, ASME B16.25, GB/T 9113, JB/T 79, HG/T 20592

• Pressure Test: API 598, GB/T 13927, GB/T 26480, JB/T 9092

• Pressure and Temperature Rating: ASME B16.34, GB/T 12224

Performance Parameters of ASME ASNI API Bellows Sealed Gate Valve

• Main Body Material: Carbon steel, stainless steel, alloy steel

• Nominal Diameter: NPS 2″～NPS 24″, DN50～DN600

• Pressure Range: CL150～CL600, PN10～PN100

• Operating Temperature: -40℃～+420℃

• Application Scope: Suitable for pipelines with media such as chemical industry, smelting, pharmaceutical, power, thermal oil, petroleum, liquefied gas, steam, flammable, explosive, heat transfer oil, high purity, and toxic media.