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High Temperature Butterfly Valves

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High Temperature Butterfly Valves Design Standards & Compliance
  • International Standards:
    • API 609 (Butterfly Valves)
    • ASME B16.34 (Valves – Flanged, Threaded, and Welded End)
    • ISO 5208 (Performance Testing of Valves)
    • API 607 (Fire Test for Soft-Seated Valves)
    • Optional compliance with industry-specific codes (e.g., ASTM, DIN, JIS).
  • Temperature Range:
    • Standard: 300°C ~ 650°C
    • High-end: Up to 1,000°C (with special alloy materials like Inconel 718).
  • Pressure Rating:
    • Class 150 ~ 600 (ASME/ANSI)
    • PN10 ~ PN100 (EN/DIN)
    • Customizable for high-pressure steam systems (up to 250 bar).
This type of butterfly valve is widely used in industries such as metallurgy, building materials, chemicals, power stations, and papermaking, especially in applications requiring bi-directional sealing. Its design is based on the three-dimensional eccentric principle,
High Temperature Butterfly Valves

High Temperature Butterfly Valves Typical Applications

  • Power plants: Superheated steam lines, boiler bypass valves.
  • Metallurgy: Hot air furnaces, molten metal transport systems.
  • Petrochemical: Reactor feed lines, coker unit high-temperature gas control.
  • Incineration: Flue gas recirculation (FGR) valves in waste-to-energy plants.

Custom Designs for High Temperature Butterfly Valves

High Temperature Butterfly Valves Structural Design

  • Eccentricity Types:
    • Double Eccentric: Reduces disc-seat friction, suitable for 400°C~600°C.
    • Triple Eccentric: Metal-to-metal seal for zero leakage in high-temperature gas systems (e.g., 650°C+).
  • Body Features:
    • Integral heat dissipation fins for temperature control.
    • Welded or bolted construction (forged/welded body for high-pressure applications).
  • End Connections:
    • Flanged (RF/RTJ, ASME B16.5), Butt Weld (BW, ASME B16.25), Lap Joint.
    • Custom flanges compliant with EN, JIS, or special project requirements.

High Temperature Butterfly Valves Performance Parameters

  • Leakage Rate:
    • Soft-seal: ≤0.1% of rated flow (API 598).
    • Metal-seal: Bubble-tight (ISO 15848-1 Class A) for critical applications.
  • Operation:
    • 90° quarter-turn actuation (manual, electric, pneumatic, hydraulic).
    • Actuator options: High-temperature-resistant electric motors (with thermal insulation) or pneumatic cylinders with heat shields.
  • Testing:
    • Hydrostatic test (1.5x rated pressure).
    • High-temperature leakage test (simulated service conditions).
    • Fire-safe test (API 607 compliant).

High Temperature Butterfly Valves Compliance & Certifications

  • Material Certifications:
    • Mill test reports (MTR) for alloy components.
    • Compliance with NACE MR0175 (for sour service, if applicable).
  • Industry Approvals:
    • CE (PED 2014/68/EU), API Monogram, CRN (Canada), GOST (Russia).
    • Third-party inspection options (e.g., Lloyd’s, Bureau Veritas).

Related News

BUTTERFLY VALVE SUPPLIER

Excelling in Harsh Conditions, Leading the Industry with High-Performance Valves for Stable Operation

High Temperature Butterfly Valves are butterfly valves specifically designed for high-temperature applications (such as above 300°C). Through special materials, structural optimization, and sealing technologies, they ensure stability, tight sealing, and long service life in high-temperature environments. These valves are widely used in high-temperature fluid control scenarios across industries like metallurgy, power, chemical engineering, and industrial furnaces.

High Temperature Butterfly Valves Parts

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Ensure Safety

Our products and services comply with international standards and specifications to make sure that we only produce the best and highest quality products and services to our clients.

Customization Service

We offer tailor-made industrial valves to ensure that our product fits your application standards and demand. TIANYU is ISO, API, MSS, and ASME compliant to guarantee you the highest product quality.

Fast Shipping

As a business partner, TIANYU makes sure that we commit to our clients’ requested deadline because we very much understand the importance of adhering to the timeline required.

After-Sales Service

TIANYU’s service does not end once our industrial ball valves are being delivered. Also, we offer warranties and provide customer service to our clients as part of our quality service.

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