Butt-Welding Metallic Hard Sealed Butterfly Valve

The Butt-Welding Metallic Hard Sealed Butterfly Valve is designed for applications that require secure, leak-tight, and precise flow control in demanding environments. This valve features a robust metallic hard seal and is ideal for use in systems with high pressure and temperature conditions, making it suitable for industries such as chemical processing, power generation, and oil & gas.
The Butt-Welding Design provides a seamless connection to pipelines, ensuring superior strength, minimizing potential leak points, and improving overall system reliability. With its multi-layered sealing system and high-performance materials, this valve guarantees a long service life and reduced maintenance costs.
Key Features:
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Butt-Welding Design: Provides a strong, permanent, leak-free connection that enhances system integrity.
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Multi-Layered Hard Sealing: Ensures leak-tight operation, even under high-pressure and high-temperature conditions.
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Durable Construction: Made from high-quality materials like stainless steel, Cr-Mo steel, and cast steel for optimal corrosion resistance and longevity.
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Wide Pressure Range: Available in pressure ratings of 0.6 MPa, 1.0 MPa, and 1.6 MPa for versatility across various industries.
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Multiple Actuation Options: Choose from worm drive, pneumatic, or electric actuators to match your operational needs.
Technical Specifications
| Component | Specification |
|---|---|
| Nominal Diameter (DN) | 50 – 2000 mm |
| Nominal Pressure (PN) | 0.6 MPa, 1.0 MPa, 1.6 MPa |
| Test Pressure | 0.66 MPa, 1.1 MPa, 1.76 MPa (Strength Test, Seal Test) |
| Test Medium | Gas, Water, Air |
| Applicable Temperature | -29°C to 425°C (Carbon Steel), -40°C to 600°C (Stainless Steel) |
| Material | Cast Iron, Stainless Steel, Cr-Mo Steel |
| Actuation Mode | Worm Drive, Pneumatic, Electric |
| Design Standard | GB/T 12283, GB/T 9115.1, GB/T 9115.2, JB/T 9092 |
Main Dimensions & Weight
| Nominal Diameter (DN) | L (mm) | H (mm) | A (mm) | B (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 50 | 120 | 160 | 180 | 200 | 22 |
| 100 | 150 | 190 | 220 | 250 | 34 |
| 150 | 180 | 220 | 250 | 300 | 45 |
| 200 | 210 | 240 | 270 | 350 | 65 |
| 250 | 240 | 270 | 300 | 380 | 80 |
| 300 | 270 | 300 | 350 | 400 | 100 |
Functions and Benefits
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Leak-Free Operation: The multi-layered metallic hard seal ensures a robust, leak-tight seal, even in high-pressure and high-temperature applications.
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Butt-Welding Design: The butt-welding connection offers superior strength and reliability, reducing the likelihood of leaks and ensuring a permanent connection.
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Wide Temperature Range: Suitable for both low and high-temperature environments, providing flexibility for use in various industrial applications.
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Versatile Actuation Options: The valve can be equipped with worm drives, pneumatic actuators, or electric actuators, allowing for flexibility depending on operational needs.
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Durability: Constructed from high-quality materials like stainless steel and Cr-Mo steel, ensuring long-lasting performance in aggressive media and harsh environments.

The Butt-Welding Metallic Hard Sealed Butterfly Valve is highly versatile and can be used in industries that require secure, leak-proof sealing and high-performance fluid control, including:
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Chemical Processing: Ideal for controlling the flow of aggressive chemicals and preventing leaks in high-pressure systems.
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Oil & Gas: Provides reliable flow regulation in pipelines and refineries, ensuring safety and system integrity under high-pressure conditions.
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Power Generation: Suitable for controlling steam and other fluids in power plants, providing precise flow regulation while minimizing leakage and energy loss.
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Water Treatment: Used in municipal and industrial water treatment systems to regulate the flow of water and other fluids with high efficiency and no leaks.
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Food & Beverage: Ensures hygienic control of liquids and gases, meeting the stringent requirements for food-grade processing systems.
