310S National Standard Flange Ball Valve

Description

310S (06Cr25Ni20) is an austenitic stainless steel specifically developed for high-temperature service:

• Corrosion Resistance: Beyond heat, it provides good resistance to a wide range of corrosive chemicals, making it a versatile choice for complex industrial processes.
• Elite Temperature Tolerance: Maintains excellent oxidation resistance in continuous service up to 1050°C and intermittent service up to 1150°C.
• Anti-Carburization: The high nickel and chromium content offers superior resistance to carburizing and reducing atmospheres, common in petrochemical and furnace applications.
• Mechanical Integrity: 310S retains high creep strength and toughness at elevated temperatures, ensuring the valve body does not warp or lose sealing capability under intense thermal stress.

Features

• GB Standard Compliance: Fully compliant with GB/T 12237 (design), GB/T 9113 (flange), and GB/T 12221 (face-to-face), ensuring a perfect fit and standardized performance within domestic National Standard infrastructure.
• Full Bore Design: The internal flow path matches the pipe’s bore exactly, providing a straight-through passage that eliminates flow restriction and ensures negligible pressure drop.
• High-Temperature Sealing Technology: Typically features Hard-Faced Metal Seats (Stellite) or high-purity flexible graphite packing. This allows for a reliable, tight seal in environments far exceeding the melting point of standard soft seats like PTFE.
• Advanced Thermal Protection: Often equipped with an extended bonnet to move the packing and actuator away from the heat source, significantly extending the life of seals and automation components.
• Safe & Anti-Static: Includes an anti-static device to discharge electricity and a fire-safe structural design to maintain shut-off integrity during emergency thermal events.

Specifications

Applications

• Industrial Furnaces: Isolation and flow control for kiln piping and heat treatment equipment.
• Petrochemical Refining: High-temperature cracking units, flare systems, and hydrogen production lines.
• Power Generation: Superheated steam lines and exhaust gas recirculation systems.
• Environmental Protection: Waste-to-energy plants and high-temperature thermal oxidizers.