High-Temperature Gate Valves are industrial valves specifically designed for fluid flow control in high-temperature operating conditions. Their core function is to reliably shut off or allow media flow within pipeline systems. These valves are widely used in high-temperature and high-pressure environments such as power generation, petrochemicals, metallurgy, chemical processing, and thermal energy transmission, playing a critical role in ensuring system safety and process stability.
Specification
Temperature range: -29°C to 650°C (conventional type); ultra-high temperature type up to 1200°C (referring to API 600 standard).
Pressure rating: Class 150 to Class 2500, adapted to system requirements.
Connections: Flange (HG/T 20592), welded (BW), or wafer.
The core advantages of high-temperature gate valves are reflected in multiple aspects, including structural reliability, sealing performance, temperature resistance, and operational stability.
Material & Structural Integrity:
Manufactured from high-strength alloy materials and special heat treatment processes, these valves can withstand thermal and mechanical stresses in prolonged high-temperature environments.
Effectively prevent material creep, oxidation, and fatigue cracking, ensuring structural integrity and functionality even at temperatures of 450°C or higher.
Sealing Design:
Equipped with elastic metal seals or multi-layer sealing structures, enabling self-compensating sealing under high-temperature expansion to avoid media leakage.
Particularly suitable for cutting control of hazardous or high-energy media such as steam, thermal oil, and molten salt.
The wedge-shaped design between the gate and seat enhances sealing pressure during closure, maintaining reliable sealing even under frequent operation and extreme temperature fluctuations.
Operational Performance:
Features rising-stem or non-rising-stem designs for clear visual indication of valve status.
Supports multiple drive modes (manual, electric, pneumatic) to meet automation demands in complex systems.
Maintainability:
Typically designed with top-entry or full-bore structures for online maintenance and cleaning, reducing downtime and improving system efficiency.
GNEE High Temperature Gate Valve for sale
