ASME ANSI API Standard Bellows Sealed Globe Valve: Design & Applications

The ASME ANSI API Standard Bellows Sealed Globe Valve is designed and manufactured in accordance with relevant American standards. Common design standards include ASME B16.34, structural length complies with ASME B16.10, flange connection adopts ASME B16.5, and testing and inspection standards follow API 598.

Working Principle of ASME ANSI API Standard Bellows Sealed Globe Valve

Rotating the handwheel or driving device drives the valve stem to perform linear motion. When the valve stem rises, the valve disc leaves the valve seat, the valve opens, and the medium flows; when the valve stem descends, the valve disc compresses the valve seat, the valve closes, and the medium flow is blocked. During the movement of the valve stem, the bellows expands and contracts accordingly to ensure the seal at the valve stem and prevent medium leakage.

Performance Features of ASME ANSI API Standard Bellows Sealed Globe Valve

• Superior Sealing Performance: Adopts bellows sealing, which can effectively prevent medium leakage along the valve stem. Coupled with the sealing structure between the valve disc and the valve seat, it achieves dual sealing with higher reliability.

• Corrosion and Wear Resistance: The valve stem is specially treated, and the sealing surfaces of the valve disc and valve seat are overlay welded with hard alloy, which can resist corrosion and erosion of the medium and extend the service life of the valve.

• Easy Operation: The handwheel design conforms to ergonomics, making operation easy. In addition, the lifting position of the valve stem is indicated, allowing operators to intuitively understand the valve status.

• Wide Application Range: Can work under the conditions of nominal pressure CLASS150-900LB and operating temperature -29~350℃, and can be used for various media such as steam, heat transfer oil, cold and hot water, molten salt and other chemical media.

Application Fields of ASME ANSI API Standard Bellows Sealed Globe Valve

• Petrochemical Industry: In processes such as petroleum refining and chemical production, it is used for pipeline control of various media such as oil products and chemical raw materials, and can operate reliably under harsh working conditions such as high temperature, high pressure and strong corrosion.

• Power Industry: Suitable for steam, condensed water, feed water and other systems in power stations, can accurately cut off or connect the medium under high temperature and high pressure environment, ensuring the stability of power production.

• Pharmaceutical Industry: Meets the strict requirements for hygiene and sealing in pharmaceutical processes, and can be used in pipeline systems for media such as medicinal liquids, steam and compressed air to prevent medium leakage and contamination.

• Other Industries: Also plays an important role in fluid transportation and control pipelines in industries such as food and beverage, papermaking, printing and dyeing, and can effectively control the flow of media.