Pneumatic High-Temp Metal-Seated Ball Valve
Metal-seated construction withstands high temperatures and abrasion, pneumatically actuated for steam, thermal oil, and high-temperature pipeline on-off control.
Inquire NowProduct Overview
Metal-seated ball valves replace soft (PTFE/PPL) seats with hardened metal alloy seats, enabling operation at temperatures where polymer seats would degrade. The pneumatic actuator provides reliable remote on-off control for high-temperature media such as superheated steam, thermal oil, and hot gases.
Available from DN15 to DN300, with chromium carbide or tungsten carbide overlay for maximum wear resistance in abrasive high-temperature service.
Key Features
- High Temperature Rating: Operates continuously at temperatures up to 650 degree C
- Abrasion Resistant: Hardfaced seats (Stellite, CrC, WC) withstand particulate wear
- Thermal Expansion Compensation: Spring-loaded seat design maintains seal integrity across thermal cycles
- Fire-Safe: Graphite secondary seal per API 607 standard
- Anti-Static: Conductive spring between ball and stem prevents static buildup
Technical Highlights
Typical Applications
Superheated steam systems, thermal oil heat transfer, refinery high-temperature process lines, FCC unit catalyst handling, incinerator gas isolation, heat recovery steam generators.
产品概述
硬密封球阀以硬化金属合金阀座替代软密封（PTFE/PPL），可在聚合物密封件失效的温度下可靠运行。气动执行器为过热蒸汽、导热油和高温气体等介质提供可靠的远程开关控制。
口径范围DN15~DN300，可选碳化铬或碳化钨堆焊层以应对磨蚀性高温工况的最大化耐磨性。
核心特点
- 耐高温：连续工作温度可达 650 degree C
- 耐磨损：硬质合金堆焊阀座（司太立、CrC、WC）抵抗颗粒磨损
- 热膨胀补偿：弹簧加载阀座设计，在热循环过程中保持密封完整性
- 防火安全：石墨二级密封，符合API 607标准
- 防静电：球体与阀杆间的导电弹簧防止静电积聚
技术参数
典型应用
过热蒸汽系统、导热油传热、炼油厂高温工艺管线、FCC催化剂处理、焚烧炉气体隔离、余热蒸汽发生器。