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Electric High-Temperature Flue Gas Butterfly Valve
Specialty Valve

Electric High-Temperature Flue Gas Butterfly Valve

Electrically actuated high-temperature butterfly valve designed for flue gas, exhaust gas and thermal power systems with heat-resistant construction and reliable tight shutoff.

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Product Overview

This electric high-temperature flue gas butterfly valve is engineered for extreme thermal environments where conventional valves fail. The valve features a heat-resistant body, high-temperature seal materials and a precision electric actuator to provide reliable on/off and modulating control in flue gas ducts, exhaust systems and thermal power plant pipelines.

With an extended temperature rating and specially designed cooling fins or heat shields, it ensures stable performance in continuous high-temperature operation while maintaining tight shutoff to prevent leakage of harmful gases.

Key Features

  • Heat-Resistant Construction: Body and disc made from high-temp alloys (310S, Inconel) or heat-resistant cast iron for sustained operation above 1000 degree C
  • High-Temp Sealing: Ceramic composite or metal-to-metal seal design maintains tight shutoff even under thermal cycling
  • Electric Precision Control: Smart electric actuator with 4-20mA positioning, supports on/off and modulating control modes
  • Extended Stem / Cooling: Optional heat-dissipation stem extension or cooling fins to protect actuator from radiant heat
  • Corrosion Resistance: Special coating and material selection to resist acid condensation and sulfur compounds in flue gas

Technical Highlights

Size RangeDN50 - DN2000
Pressure RatingPN6 / PN10 / PN16
Body MaterialWCB, HT250, CF8, 310S
Disc / Seat310S, Inconel, Ceramic Composite
Temperature-40 to +1200 degree C
Leakage ClassANSI Class V / VI

Typical Applications

Thermal power plant flue gas ducts, waste incineration exhaust systems, desulfurization / denitrification pipelines, cement kiln tail gas, steelworks high-temperature exhaust, boiler induced-draft and forced-draft systems, industrial furnace gas control.

产品概述

电动高温烟气蝶阀专为极端热环境设计,在传统阀门失效的高温工况下提供可靠性能。阀体采用耐高温材质,搭配高温密封材料和精密电动执行器,适用于烟气管道、排气系统和火电厂管路中的开关和调节控制。

通过扩展的温度等级和专门设计的散热鳍片或隔热罩,该阀门能够在持续高温运行中保持稳定的性能,同时确保严密关断以防止有害气体泄漏。

核心特点

  • 耐高温结构:阀体和碟板采用高温合金(310S、因科镍)或耐热铸铁,可持续在1000°C以上运行
  • 高温密封:陶瓷复合或金属对金属密封设计,在热循环条件下仍保持严密关断
  • 电动精密控制:智能电动执行器支持4-20mA定位,可选开关型和调节型控制模式
  • 加长阀杆/散热:可选散热加长阀杆或隔热鳍片,保护执行器免受辐射热影响
  • 耐腐蚀:特殊涂层和材料选择,抵抗烟气中的酸冷凝和硫化物腐蚀

技术参数

口径范围DN50 - DN2000
压力等级PN6 / PN10 / PN16
阀体材质WCB, HT250, CF8, 310S
碟板/密封310S, 因科镍, 陶瓷复合
温度范围-40 至 +1200°C
泄漏等级ANSI V / VI 级

典型应用

火电厂烟气管道、垃圾焚烧排气系统、脱硫脱硝管路、水泥窑尾废气、钢铁厂高温排气、锅炉引风和送风系统、工业炉窑气体控制。