127V electric butterfly valve
Comprehensive information analysis of 127V electric butterfly valve:
1、 Product type and core parameters
127V electric butterfly valves are mainly divided into three categories: explosion-proof, anti-corrosion, and regulating:
Explosion proof type: specially designed for mining environments, in compliance with coal safety certification, using AC127V voltage, and the valve body material is stainless steel or cast steel
Anti corrosion type: lined with PTFE material, resistant to acid and alkali corrosion, suitable for the chemical and water treatment industries
Adjustable type: Supports 4-20mA signal control, with flow regulation accuracy of ± 1%, equipped with intelligent locator
2、 Typical technical indicators
Special requirements for parameter standard value range
Working voltage AC127V explosion-proof requires Exd Ⅱ BT4 certification
The nominal diameter is DN15-DN300, and the large diameter can reach DN2000
Sealing Class ANSI Class VI Vacuum Class up to 10 ⁻⁹ Pa · m3/s
Actuator response ≤ 15 seconds (switch type), adjustable type ≤ 50ms
3、 Mainstream application scenarios
Mine safety system: Gas drainage pipeline flow control, must meet the GB3836.1-2010 explosion-proof standard
Chemical process control: transportation of highly corrosive media such as sulfuric acid and hydrofluoric acid, with a fluorine lining thickness of ≥ 3mm
Electric cooling system: circulating water regulation for thermal power plants, with a temperature resistance of up to 450 ℃
Environmental engineering: Limestone slurry regulation for flue gas desulfurization system, with a wear-resistant life of ≥ 5 years
4、 Selection suggestions
Corrosive medium: PFA lining+metal hard seal combination is preferred
High frequency action scenario: configuring graphite bearings to improve service life
Low temperature condition: requires certification through -40 ℃ low temperature testing
Key pipeline: It is recommended to adopt a dual actuator redundancy design
MD943H-16C-DN50 intelligent regulating electric butterfly valve has been widely used in the design and construction of new gas extraction and power plants in high gas coal mines. In the past, conventional valves such as gate valves, hard sealed or soft sealed butterfly valves were mostly used. Gate valves and hard sealed butterfly valves.
Electric Valve, Electric Ball Valve, Pneumatic Valve, Pneumatic Ball Valve (Tianjin First Standard Valve)
选型建议
