Q911防爆电动高压球阀，此球阀的执行机构是全电子式电动执行机构，采有机电一体化结构，具有机内伺服操作和开度信号位置反馈、位置指示、手动操作等功能，功能强、性能稳定、连线简单。在工作方面有了很大的提高和改善，防爆型电动球阀用途在工作方面有了很大的提高和改善，可以广泛应用于石油、化工、水处理、造纸、电站、供热、轻工等各行业中。

Q911防爆电动高压球阀优点：

       1、壳体：壳体为硬质铝合金，经阳极氧化处理和聚酯粉末涂层，耐腐蚀性强，防护等级为IP67。

　　2、电机：全封闭式鼠笼式电机，体积小，扭距大，惯性力小，绝缘等级为F级，内置热保护开关，可防止损坏电机。
　　3、手动结构：手轮的设计确保安全稳定、省力、体积小。不通电时，扳动离合器手柄可进行手动操作。
　　4、指示器：指示器安装在中心轴上，采用凸出镜设计，不积水，观察方便。
　　5、干燥器：可防止由于温度和天气变化导致执行器内部水分凝结，保持内部电气元件的干燥。
　　6、限位开关：机械、电子双重限位。旋转螺钉即可调整机械限位，安全稳定；凸轮机构来控制电子限位开关，调整机构调整简单，定位。
　　7、扭距开关：可提供过载保护，防止损坏电机。
　　8、自锁：采用精密的双蜗轮蜗杆机构，传输率高，扭距大，效率高，噪音低（50分贝以下），防止反转，传动部分稳定，无需再加油。
　　9、蜗轮：采用凹轮设计确保与蜗杆的接触面大，传输扭距大，平衡且耐磨，寿命长。当然此球阀的驱动方式和连接方式不仅仅只局限于蜗轮，还有法兰式、手动式等。

防爆电动球阀

防爆电动球阀是一种专门设计用于易燃易爆环境的电动阀门 。它主要由防爆电动执行机构和球阀阀体两部分组成 。其核心特点是执行机构内的电气元件经过特殊防火、防静电处理，并封装在能承受内部爆炸不外泄的壳体内，使其达到严格的防爆标准（如 ExdⅡBT4）和防护等级（如 IP67）。工作时，它通过接收控制系统的电源或信号（如直接开关信号或4-20mA调节信号），驱动电机带动球阀的球体旋转90度，从而快速接通或切断管道中的介质 。由于其安全稳定性，被广泛应用于石油、化工、天然气、制药等行业的危险场合 。

防爆电动球阀主要结构与特点

· 防爆执行机构：这是阀门的核心防爆部件。壳体通常采用硬质铝合金并经防腐涂层处理 。内部采用全封闭式鼠笼式电机，通常具备F级绝缘并内置热保护开关 。采用精密的蜗轮蜗杆机构传输扭矩，效率高且能自锁 。具备机械和电子双重限位开关，定位准确 。还装有扭矩开关，提供过载保护以防损坏电机 。集成干燥器，防止内部水分凝结 。具备手动操作结构，在断电时可通过手轮或离合器手柄进行手动操作 。

· 防爆电动球阀阀体：阀体采用二段式结构 。阀芯通常为O型球体，实现流体的切断 。阀门流动方向为双向 。密封材料根据介质和温度选择，如PTFE（≤150℃）、RTFE（≤180℃）、PPL（≤300℃）或硬密封（如≤450℃）。阀体材质常见的有WCB碳钢、不锈钢304、316等 。

· 防爆电动球阀主要特点总结：具备很好的防爆性能，确保在危险环境安全运行 。密封稳定，零泄漏 。开关迅速，只需旋转90度即可完成开关动作 。流通能力大，流体阻力小 。使用寿命长 。可实现远程控制和自动化操作 。

防爆电动球阀主要技术参数

防爆电动球阀项目 参数/描述

公称通径 (Nominal Diameter) DN15 ~ DN300mm

公称压力 (Nominal Pressure) 常见 PN1.0, 1.6, 2.5, 6.4MPa  (部分高压型可达42MPa )

连接方式 (Connection Type) 法兰式、螺纹连接 ，对夹或焊接

电源电压 (Power Supply) AC110V、AC220V、AC380V，DC24V等

防爆等级 (Explosion-proof Grade) ExdⅡBT4 ，ExdⅠMb（煤矿用 ），ExdIICT4/CIT6

防护等级 (Protection Grade) IP67  (IP68 可选 )

适用温度 (Applicable Temperature) 阀体材质和密封材料决定，例如 -20℃ ~ +200℃ ，-29℃ ~ +180℃

适用介质 (Applicable Media) 水、蒸汽、油品、气体、天然气、煤气、腐蚀性介质等

防爆电动球阀控制方式 (Control Mode) 开关型（开关切断控制）、调节型（4-20mA模拟信号）

阀体材质 (Body Material) 碳钢WCB、不锈钢304、316、316L等

防爆电动球阀类型与应用领域

· 特殊类型阀门：

  · 防爆保温电动球阀：带保温夹套，可通过加热或冷却介质保持阀内介质温度，适用于易凝固的高粘度介质 。

  · 防爆电动高压球阀：阀体采用锻钢，适用于高压环境 。

  · 煤矿用防爆电动球阀：适用于煤矿井下，具有瓦斯和煤尘爆炸危险的环境，额定电压通常为DC 24V 。

  · 防爆电动衬氟球阀：内腔及球体衬有聚全氟乙丙稀(F46)或PTFE等耐腐蚀材料，适用于强腐蚀性介质 。

· 典型应用领域：广泛应用于石油和天然气 、化工 、制药 、食品加工 、水处理 、造纸 、电站 、供热 、轻工 、煤矿  等行业的自动化控制系统。

Product Overview of Explosion-proof Electric Ball Valve

The Explosion-proof Electric Ball Valve is an electric valve specially designed for flammable explosive environments . It mainly consists of an explosion-proof electric actuator a ball valve body . Its core feature is that the electrical components inside the actuator undergo special fireproof antistatic treatment are encapsulated in a housing that can withstand an internal explosion without leaking it externally, enabling it to meet strict explosion-proof standards (e.g., ExdⅡBT4) protection grades (e.g., IP67) . During operation, it receives power signals the control system (such as direct on/off signals 4-20mA control signals) to drive the motor, which rotates the ball's sphere by 90 degrees, thereby quickly connecting cutting off the medium in the pipeline . Due to its safety reliability, it is widely used in hazardous occasions in industries such as petroleum, chemical, natural gas, pharmaceuticals .

Main Structure Features

· Explosion-proof Actuator: This is the core explosion-proof component of the valve. The housing is usually made of hard aluminum alloy with anti-corrosion coating . It uses a fully enclosed squirrel-cage motor inside, typically with Class F insulation a built-in thermal protection switch . It employs a precise worm gear mechanism for torque transmission, which is efficient self-locking . It features both mechanical electronic limit switches for precise positioning . A torque switch is also installed to provide overload protection prevent motor damage . An integrated dryer prevents internal moisture condensation . A manual operation structure allows for manual operation via a handwheel clutch handle during power loss .

· Ball Valve Body: The body often uses a two-piece structure . The valve core is usually an O-type sphere for flow shutoff . The flow direction is bidirectional . The sealing material is selected based on the medium temperature, such as PTFE (≤150℃), RTFE (≤180℃), PPL (≤300℃), hard sealing (e.g., ≤450℃) . Common body materials include WCB carbon steel, stainless steel 304, 316, etc .

· Key Features Summary: Offers excellent explosion-proof performance, ensuring safe operation in hazardous environments . Reliable sealing with zero leakage . Rapid opening closing, requiring only a 90-degree rotation for the actuation . Large flow capacity low fluid resistance . Long service life . Enables remote control automated operation .

Main Technical Parameters

The table below lists typical technical parameters (Please note that specific values may vary depending on the model, manufacturer, application):

Item Parameter/Description

Nominal Diameter DN15 ~ DN300mm

Nominal Pressure Common PN1.0, 1.6, 2.5, 6.4MPa  (Some high-pressure types up to 42MPa )

Connection Type Flanged, Threaded , Wafer Welded

Power Supply AC110V, AC220V, AC380V, DC24V, etc.

Explosion-proof Grade ExdⅡBT4 , ExdⅠMb (For coal mine ), ExdIICT4/CIT6

Protection Grade IP67  (IP68 optional )

Applicable Temperature Depends on body material seal material, e.g., -20℃ ~ +200℃ , -29℃ ~ +180℃

Applicable Media Water, Steam, Oil products, Gas, Natural gas, Coal gas, Corrosive media, etc.

Control Mode Switch Type (On/Off control), Regulating Type (4-20mA analog signal)

Body Material Carbon Steel WCB, Stainless Steel 304, 316, 316L, etc.

Types Application Fields

· Special Types:

  · Explosion-proof Insulated Electric Ball Valve: Equipped with a insulation jacket to maintain the temperature of the medium inside the valve by circulating a heating cooling medium, suitable for high-viscosity media that may solidify .

  · Explosion-proof Electric High-Pressure Ball Valve: The valve body is forged, suitable for high-pressure environments .

  · Coal Mine Explosion-proof Electric Ball Valve: Suitable for underground coal mines with risks of gas coal dust explosions, usually with a rated voltage of DC 24V .

  · Explosion-proof Electric Lined Fluorine Ball Valve: The inner cavity ball are lined with corrosion-resistant materials like FEP (F46) PTFE, suitable for highly corrosive media .

· Typical Application Fields: Widely used in automation control systems across industries like Petroleum Natural Gas , Chemical Industry , Pharmaceuticals , Food Processing , Water Treatment , Paper Making , Power Stations , Heating Supply , Light Industry , Coal Mines .