310S National Standard Flange Gate Valve

Description

310S (06Cr25Ni20) is an austenitic stainless steel designed for high-temperature service. It is often referred to as the “High-Temperature King” of stainless steels:

• Superior Oxidation Resistance: The high chromium and nickel content allows it to resist oxidation in continuous service at temperatures up to 1100°C.
• High-Temperature Strength: Maintains excellent creep strength and mechanical toughness even under intense thermal stress.
• Corrosion Stability: Offers good resistance to carburizing and reducing environments common in thermal processing.

Features

• GB Standard Compliance: Manufactured to GB/T 12234, GB/T 9113, and GB/T 12221 specifications, ensuring standardized dimensions and reliable performance for domestic high-heat infrastructure.
• Full Bore Flow: The gate retracts completely into the bonnet, providing an unobstructed flow path that minimizes pressure loss—essential for high-velocity steam or hot gas systems.
• Flexible Wedge Sealing: Equipped with a wedge-type gate that provides a tight, reliable shut-off, compensating for minor thermal expansion and contraction within the valve body.
• Rising Stem Design: Features an outside screw and yoke (OS&Y) design that keeps the stem threads away from the hot media, ensuring long-term operational smoothness and easy lubrication.

Specifications

Applications

• Furnace Engineering: Hot air pipelines, kiln exhaust, and heat treatment equipment.
• Power Generation: High-temperature steam isolation and biomass energy systems.
• Petrochemical: Refineries, catalytic cracking units, and thermal processing lines.
• Waste Incineration: Flue gas handling and high-temperature waste-to-energy systems.