Metal Seated Butterfly Valve High Temperature Hard‑Seal Pipeline Butterfly Valve
- Metal Seated Butterfly Valve is industrial butterfly valve designed with metal hard‑sealing for high‑temperature and abrasive working conditions.
‑ Metal‑to‑metal hard seat structure, excellent high temperature resistance
‑ Resist abrasive particle erosion, adapt dust and flue gas medium
‑ Good sealing performance under high‑temperature environment
‑ Robust valve body, long service life under harsh working condition
‑ Multiple connection forms: wafer, lug, flanged
‑ Support manual, pneumatic, electric and hydraulic actuator
‑ Compact structure, small installation space, lightweight design
‑ Reliable torque transmission, stable switch action
‑ Strict pressure and sealing test before shipment
‑ Support OEM, ODM, special temperature and pressure customization
‑ Complete technical documents and test reports available
‑ Factory direct supply for power, metallurgy and cement industry orders
Widely used in power plant, metallurgy, cement plant, waste incineration, chemical industry. Apply to flue gas, dust‑containing gas, high‑temperature steam and abrasive medium pipeline for cut‑off and regulation control.
Metal Seated Butterfly Valve realizes opening and closing by rotating butterfly disc within 90 degrees. The metal disc closely fits metal seat to achieve hard sealing. When disc parallels pipeline direction, medium passes through; rotate 90°, disc presses seat to block fluid passage and complete shut‑off. Metal hard‑seal structure keeps stable performance under high temperature and particle‑containing medium.
Product Type: Metal Seated Butterfly Valve
Standard: ASME B16.5
Pressure Class: Class150‑Class300
Size Range: DN50‑DN2000
Connection: Wafer, Lug, Flanged
Body Material: Carbon Steel, Stainless Steel
Seat: Metal Hard‑Seat
Operation: Manual, Pneumatic, Electric, Hydraulic
Applicable Medium: High‑temperature flue gas, dust‑laden gas, steam, abrasive fluid
Working Temperature: ‑29℃ ~ +600℃
Each metal seated butterfly valve undergoes hydrostatic test and sealing inspection, packed in heavy‑duty plywood export cases. Custom marking and project‑required documents are supported for overseas bulk orders.
Port Size: DN80~DN3200
Pressure Rating: PN10~PN25, CLASS 150~300, JIS 5K/10K
Design Standards: API 609, EN 593, MSS SP67, ASME B16.34, BS5155
Body Material: WCB, 304SS, 316SS, alloy steel
End Connections: Flange (ANSI/GB/JIS RF/RTJ)
Structure: Large-diameter, triple eccentric, metal-to-metal hard seal
Temp Range: -29℃~425℃
Leakage Class: ANSI/FCI Class IV
Hydro Test: 1.5×rated pressure (shell), 1.1×rated pressure (seat)
Seal Material: Stellite 6, cobalt-based alloy
Media: Water, steam, oil, mild chemicals, abrasive fluids
Certifications: ISO 9001, CE, ATEX (optional), API 598
Inspection Standards: API 598, ISO 5208, EN 12266