The Flue gas butterfly valve is designed to handle the harsh, abrasive, and often high-temperature conditions found in furnace gas, exhaust systems, and smoke ducts. In industries like steel, cement, and power generation, ordinary valves erode within weeks due to the high dust content and corrosive gasses. Our Flue gas butterfly valve utilizes double or triple-eccentric metal-to-metal sealing, with the disc edges and seats overlaid with wear-resistant hard alloys (HRC 50+). The body is typically constructed from thickened steel or heat-resistant alloys to withstand thermal stress and mechanical wear, ensuring a reliable barrier even in the most demanding industrial environments.
Our 20+ years of experience serving the metallurgy sector have taught us that the stem seal is the most common failure point. Therefore, our Flue gas butterfly valve features a multi-layer flexible graphite packing combined with specialized dust rings to prevent fine particles from jamming the stem. At the Soho manufacturing base, we've supplied thousands of these valves to major steel groups like Baosteel, where they consistently outperform generic alternatives. When you choose our Flue gas butterfly valve, you are getting a product optimized for high-load cycles and abrasive media, backed by a team that understands the nuances of flue gas treatment and desulfurization systems.
Technical Specifications
Design: Eccentric Metal Seated
Body Material: WCB, Heat-resistant Steel, Q235B
Sealing Material: Stellite / Stainless Steel
Operating Temp: Up to 600°C (1112°F)
Pressure Rating: PN0.6, PN1.0, PN1.6
Application Areas
Primary applications include blast furnace gas systems, flue gas desulfurization (FGD), coal-fired power plant exhausts, and cement kiln tail gas control.
Factory Customization & OEM
We provide professional pre-sales selection. Give us your dust concentration, temperature, and particle hardness, and our R&D team will customize the Flue gas butterfly valve materials and hard-facing for you.
Quality Control & Packaging
We conduct hardness checks on all hard-faced components and perform full-cycle operational tests. Packaging is done in reinforced plywood crates with moisture-proof linings to protect the drive mechanisms.
FAQ
Q: How do you handle high temperatures?
A: We use specialized alloys and an offset design that minimizes contact during travel, preventing heat-induced jamming of the Flue gas butterfly valve.
Q: Can the seal be replaced?
A: Yes, we design the seats to be maintainable, providing seal kits for long-term field use.
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