For high-temperature steam, abrasive gases, or fluids containing solid particles, soft-seated valves fail rapidly. Our Metal seated butterfly valve is specifically engineered for these punishing environments. Utilizing a triple-offset (or multi-offset) design, the disc and seat interface is precision-ground and often overlaid with hard alloys like Stellite or Cobalt-based alloys (reaching HRC 50+). This unique geometry allows the sealing surfaces to disengage immediately upon opening, virtually eliminating friction and wear. This Metal seated butterfly valve can reliably operate in temperatures up to 500°C, providing long-term zero-leakage performance where others fail.
In our years of working with giants like Baosteel Group, we have optimized the Metal seated butterfly valve for high-wear flue gas and molten salt applications. We perform rigorous low-pressure air tightness tests on every unit-a standard much stricter than the industry average-to ensure a perfect seal. As a source factory with a 16,600sqm facility, we control every step from hard-alloy welding to final machining on our CNC boring mills. Investing in our Metal seated butterfly valve means a service life 3-5 times longer than soft-seated versions in abrasive conditions, significantly lowering your total cost of ownership and reducing downtime for maintenance.
Technical Specifications
Design: Triple Offset / Double Offset
Body Material: WCB, CF8, CF8M, Heat-resistant Steel
Seal Material: SS304 + Graphite / Solid Metal + Stellite
Max Temp: 550°C (1022°F)
Pressure Rating: PN10 - PN100 / Class 150 - Class 600
Application Areas
Essential for power plant desulfurization, metallurgy gas lines, petrochemical catalytic cracking units, and high-temperature steam distribution.
Factory Customization & OEM
Our R&D team can customize the Metal seated butterfly valve for extreme pressure or temperature requirements. We provide full technical support for selection, ensuring the eccentricity and materials are perfect for your specific media.
Quality Control & Packaging
We use specialized wooden flange protectors to prevent any damage to the precision-ground metal seats during transit. All units are shipped in reinforced plywood crates after passing 100% performance tests.
FAQ
Q: How do you achieve zero leakage with metal?
A: The triple-offset geometry of our Metal seated butterfly valve creates a "camming" effect, allowing the disc to wedge into the seat for a tight mechanical seal.
Q: Is it suitable for modulating flow?
A: Absolutely, the triple-offset design provides excellent control characteristics.
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