Product Overview
The 2-inch (DN50) stainless steel high-temperature steam explosion-proof pneumatic hard-sealed flanged butterfly valve is designed for demanding industrial applications, including high-temperature/pressure steam, flammable, explosive, and corrosive media. Featuring a hard-sealed construction and pneumatic actuation, it delivers exceptional sealing performance, thermal resistance, and explosion-proof safety, making it ideal for automated fluid control in industries such as oil & gas, power generation, metallurgy, and pharmaceuticals.
Key Features
1. High-Temperature & Pressure Resistance
Stainless steel body (CF8/CF8M, 304/316) withstands temperatures up to 425°C and pressures of PN16-PN40 (optional), suitable for saturated steam, superheated steam, and high-temperature gas.
2. Bubble-Tight Hard Seal
Metal-to-metal hard seal (e.g., stainless steel + hard alloy overlay) ensures zero leakage (ANSI Class IV+) and superior wear resistance for long-term reliability.
3. Explosion-Proof Pneumatic Actuator
ATEX/Ex BT4-certified pneumatic actuator (double-acting or spring-return) for hazardous areas; includes solenoid valves and positioners (optional). Fast actuation (≤2 sec) with 4-7 bar air supply.
4. Flanged Connection & Compact Design
Flange standards: ANSI B16.5, EN1092-1, or GB/T9113 for broad compatibility.
Lightweight yet robust: Saves space compared to gate/globe valves.
5. Durability & Low Maintenance
Integral forged stem prevents detachment risks.
High-temperature grease pre-applied to bearings extends service life.
Typical Applications
• Isolation/regulation in high-temperature steam lines.
• Flammable gas/oil pipelines (explosion-proof required).
• Corrosive chemical flow control.
Optional Configurations
• Actuator protection: IP67/IP68.
• Seat material: Stellite alloy.
• Connection type: Wafer-style (upon request).
Engineered for reliability in extreme conditions, this valve is a premium solution for industrial automation. Customization available-contact our technical team for details.
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