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DN80 PN25 3PC Forged Steel Trunnion Flanged Ball Valves

DN80 PN25 3PC Forged Steel Trunnion Flanged Ball Valves are high-performance three-piece forged steel ball valves designed specifically for medium and high-pressure working conditions. Manufactured from high-quality forged steel, the valve offers high strength and good corrosion resistance, enabling it to adapt to various harsh working environments. Its unique trunnion flange design provides higher installation flexibility and stability, making it widely used in industries such as oil, natural gas, chemical engineering, and power generation.
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DN80 PN25 3PC Forged Steel Trunnion Flanged Ball Valves

Structural Features

  • Three-Piece Design: The valve body is divided into three parts, facilitating maintenance and component replacement, reducing downtime, while enhancing the overall strength and sealing performance of the valve.

  • Forged Steel Material: The valve body, ball, and stem are made of high-quality forged steel, which has high strength and good corrosion resistance, capable of resisting erosion from various chemical media and extending the valve's service life.

  • Trunnion Flange Design: The unique trunnion flange design provides higher installation flexibility and stability, facilitating valve installation and maintenance.

  • Metal Sealing: The metal sealing design is suitable for medium and high-pressure environments, offering excellent sealing performance and maintaining zero leakage even under extreme working conditions.

  • Fire-Safe Design: Compliant with API 607 standards, the valve maintains sealing performance even in case of fire, preventing medium leakage and ensuring system safety.

  • Anti-Static Device: A built-in anti-static device effectively prevents static accumulation, reducing the risk of fire and explosion, and is particularly suitable for controlling flammable and explosive media.

  • Compact Design: Small in size and light in weight, it is easy to install and integrate into existing systems, saving space.

  • Multiple Operation Modes: Can be equipped with manual, pneumatic, electric, or hydraulic actuators to achieve remote automated control.

Technical Parameters

  • Nominal Diameter: DN80

  • Pressure Class: PN25

  • Temperature Range: -29℃ to +425℃

  • Materials:

    • Valve Body: Forged steel (A105)

    • Ball: Stainless steel (304/316)

    • Stem: Stainless steel (304/316)

    • Sealing Material: Metal sealing (stainless steel, cemented carbide, etc.)

  • Connection Type: Trunnion flange connection (compliant with ASME B16.5 standards)

  • Operation Mode: Manual, pneumatic, electric, hydraulic

  • Design Standards: API 6D, ASME B16.34

  • Testing Standards: API 598

  • Fire-Safe Design: API 607

  • Applicable Media: Oil, natural gas, water, steam, chemical media, etc.

Application Scenarios

  • Oil and Gas Industry: Used in oil and gas field exploitation, gathering, and processing systems to ensure reliable isolation and control of media.

  • Chemical Industry: Suitable for conveying and reaction systems of various chemical media, preventing medium leakage and ensuring production safety.

  • Pharmaceutical Industry: Applied in pipeline systems during pharmaceutical production to ensure medium isolation and cleanliness in the drug manufacturing process.

  • Food and Beverage Industry: Meets food-grade requirements and is used in pipeline systems for food and beverage production to ensure hygiene and safety.

  • HVAC: Used in cooling water systems, hot water systems, etc., to ensure efficient operation of the system.

  • General Industrial Applications: Suitable for controlling and isolating media such as water, oil, and gas.

Advantages and Value

  • High Reliability: Forged steel material and three-piece structure ensure stable operation of the valve under high-pressure and medium-to-high-temperature environments, reducing maintenance frequency and downtime.

  • High Safety: Fire-safe and anti-static designs, along with reliable sealing performance, effectively reduce leakage risks and protect personnel and equipment safety.

  • Automated Operation: Multiple actuator options enable remote control and automated operation, improving system flexibility and safety.

  • Easy Installation and Maintenance: The trunnion flange connection simplifies the installation process and facilitates maintenance and repair.

  • Wide Applicability: Multiple material options and a broad range of pressure and temperature ranges enable it to adapt to various complex working conditions and medium characteristics.

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Zhejiang Masoneilan Valve Co.,LTD is located in Wenzhou city, Zhejiang Province, which is a VALVES center in China. Masoneilan Valve, is a manufacturer and exporter for industry valves, is a innovative enterprise including R&D, design, production, sales & service. 

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