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Help CenterMetal Hard Seal High Temperature Resistant Butterfly Valve PN1.6-10MPa
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As a professional manufacturer with over 8 years of experience, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Metal Hard Seal High Temperature Resistant Butterfly Valve. Engineered for the most demanding industrial applications, this valve is designed to provide reliable shut-off and control in high-temperature and high-pressure environments where standard elastomer-sealed valves would fail. Our commitment to ISO9001-certified manufacturing ensures that every valve delivers consistent performance, durability, and safety, making it a trusted component in critical systems worldwide.
Core Product Advantages:
- Exceptional High-Temperature Performance: The metal hard seal design allows the valve to operate reliably in environments with temperatures up to 450°C (842°F), preventing seal degradation and leakage.
- Robust Pressure Handling: Available in pressure ratings from PN1.6 to PN10, it is suitable for a wide range of industrial pipeline pressures.
- Superior Durability & Long Service Life: The metal-to-metal sealing surfaces are highly resistant to wear, corrosion, and erosion, significantly extending maintenance intervals and operational lifespan.
- Versatile Material Options: Valve bodies and discs can be manufactured from various materials like carbon steel, stainless steel (304/316), and special alloys to match specific fluid media and corrosive conditions.
- Low Maintenance & Easy Operation: The robust design minimizes the need for frequent adjustments. It can be operated via manual lever, gearbox, or automated with electric/pneumatic actuators for remote control.
Detailed Technical Specifications & Features:
The valve's performance is defined by its precise engineering. Below is a summary of key specifications:
| Parameter | Specification / Option |
|---|---|
| Design Standard | API 609, EN 593, ASME B16.34 (Typical) |
| Pressure Rating | PN1.6, PN2.5, PN4.0, PN6.3, PN10 (Class 150, 300) |
| Size Range (Nominal Diameter) | DN50 to DN1200 (2" to 48") |
| Seat & Disc Seal | Stellite hard-faced or similar hard alloy metal seal |
| Body Material | WCB (Carbon Steel), CF8/CF8M (304/316 SS), WC6/ WC9 (Alloy Steel) |
| Stem Material | 17-4PH Stainless Steel, 4140 Alloy Steel |
| Leakage Class | ANSI Class IV or better (Metal Seat) |
| End Connection | Wafer, Lug, Double Flange (RF, RTJ face) |
| Operation | Manual (Lever/Gear), Electric Actuator, Pneumatic Actuator |
Benefits for Your Operations:
- Enhanced System Safety: Reliable sealing under extreme conditions prevents dangerous leaks, protecting personnel and equipment.
- Reduced Total Cost of Ownership: The long service life and minimal maintenance requirements lead to significant cost savings over time compared to frequently replaced soft-seal valves.
- Process Stability: Consistent flow control and tight shut-off ensure stable industrial processes in power generation, chemical processing, and metallurgy.
- Wide Compatibility: Suitable for a vast array of media including steam, hot oil, gases, and certain corrosive fluids when material is appropriately selected.
With an annual export value between US$1 Million and US$1.5 Million and a presence in major markets across North America, South America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang has proven its capability to meet global standards and customer expectations. Our valves are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Choosing our Metal Hard Seal Butterfly Valve means investing in a component backed by stringent ISO9001 quality control, proven field performance, and the support of an established manufacturer dedicated to industrial fluid control solutions. Contact us today to discuss how this valve can enhance the reliability and efficiency of your high-temperature applications.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a metal hard seal over a soft (rubber) seal in a butterfly valve?
A: Metal hard seals offer far superior resistance to high temperatures, abrasion, and corrosion. While soft seals are economical for lower temperatures, they can melt, harden, or degrade quickly in hot service. Metal seals maintain integrity at temperatures exceeding 400°C, ensuring long-term, leak-tight performance in harsh conditions.
Q2: Can this valve be used for both isolation (on/off) and flow control (throttling)?
A: Yes, it can be used for both functions. However, for precise flow control (throttling), especially at high temperatures, it is recommended to pair the valve with a suitable high-performance actuator and consider the specific valve characteristics to avoid excessive seat wear.
Q3: What materials are available for the valve body to handle corrosive media?
A: We offer stainless steel grades (304, 316, 316L) and special alloys (like Monel, Hastelloy) upon request. The standard body material is carbon steel (WCB), which is suitable for many non-corrosive high-temperature applications like steam.
Q4: Is this valve suitable for cryogenic or very low-temperature services?
A: This specific model is optimized for high-temperature resistance. For cryogenic services, we recommend a different design with extended stems and low-temperature materials. Please inquire about our cryogenic valve series.
Q5: What types of actuators are compatible with this valve?
A: The valve is designed with a standard mounting interface compatible with electric (on/off or modulating), pneumatic (double-acting or spring-return), and hydraulic actuators from major brands. We can provide the complete actuated package.
Q6: What is the typical delivery time for a standard size?
A: For standard sizes (DN50-DN600) and common materials (WCB, 304SS), the delivery time is typically 4-6 weeks. Larger sizes, special alloys, or actuated packages may require additional time. We maintain some stock for popular items.
Q7: Do you provide testing certificates and documentation?
A> Yes. As an ISO9001-certified manufacturer, we provide standard documentation including material test reports, certificate of conformity, and packing list. Additional testing like shell test, seat leak test, or third-party inspection can be arranged upon request.
Q8: How do I select the correct pressure rating (PN) for my application?
A> The PN rating must be equal to or greater than the maximum working pressure in your system at the operating temperature. Our technical team can assist you in selecting the appropriate PN1.6, PN2.5, PN6.3, or PN10 rating based on your specific pipeline design conditions.
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