Q41F活动法兰球阀它连接法兰旋转任意角度和配对法兰连接，具有安装方便，对原管道法兰的角度没有要求。它只需要用旋转90度的操作和很小的转动力矩就能关闭严密。球阀适宜做开关、切断阀使用，但近来的发展已将球阀设计成使它具有节流和控制流量之用，如V型球阀。

Q41F活动法兰球阀是通过螺栓连接主副体，本身结构紧凑，密封稳定，外形美观，维修方便，密封面与球面常在闭合状态，不易被介质冲蚀，易于操作和维修，适用于水、溶剂、酸和天然气等一般工作介质，而且还适用于工作条件恶劣的介质，如氧气、过氧化氢、甲烷和乙烯等，在各行业得到广泛的应用。球阀阀体可以是整体的，也可以是组合式的。

Q41F活动法兰球阀优点：

1．流体阻力小，全通径的球阀基本没有流阻。

2．结构简单、体积小、重量轻。

3．紧密稳定。它有两个密封面，而且目前球阀的密封面材料广泛使用各种塑料，密封性好，能实现完全密封。在真空系统中也已广泛使用。

4．操作方便，开闭迅速，从全开到全关只要旋转90°，便于远距离的控制。

5．维修方便，球阀结构简单，密封圈一般都是活动的，拆卸更换都比较方便。

6．在全开或全闭时，球体和阀座的密封面与介质隔离，介质通过时，不会引起阀门密封面的侵蚀。

7．适用范围广，通径从小到几毫米，大到几米，从高真空至高压力都可应用。

8．由于球阀在启闭过程中有擦拭性，所以可用于带悬浮固体颗粒的介质中。

活动法兰球阀产品概述

活动法兰球阀是一种采用活动法兰连接方式的球阀，通过法兰与管道或设备连接，安装便捷且密封性好，广泛应用于水、油、气体等介质的输送系统中。以下是其产品概述：

 活动法兰球阀- 结构组成：主要由阀体、球体、阀座、阀杆、活动法兰及执行机构（如手动、电动、气动）等部件组成。活动法兰与阀体采用可调节结构连接，便于安装时调整法兰间距，适配不同管道的安装需求。

活动法兰球阀- 工作原理：通过旋转阀杆带动球体转动，实现阀门的开启与关闭。当球体通孔与管道通道对齐时，介质流通；当球体旋转90度，通孔与通道垂直时，介质被阻断，依靠球体与阀座的紧密贴合实现密封。

活动法兰球阀- 特点优势：活动法兰设计使安装更灵活，可补偿管道安装误差，降低安装难度；法兰连接密封性稳定，适用于中低压工况；操作简便，启闭迅速，流阻小；材质多样（如铸铁、不锈钢等），可适配不同介质和环境。

活动法兰球阀- 技术参数：公称通径常见DN15-DN300等规格，公称压力一般为PN10-PN40，适用温度范围根据材质不同约为-20℃至120℃（普通材质），特殊材质可更高。

活动法兰球阀- 应用领域：广泛用于给排水、暖通空调、石油化工、市政工程等领域，用于控制水、蒸汽、油品、气体等介质的通断。

The loose flange ball valve is a type of ball valve using a loose flange connection method. It connects to pipelines equipment via flanges, featuring convenient installation good sealing performance, is widely used in transportation systems for media such as water, oil, gas. The product overview is as follows:

 The loose flange ball- Structural composition: It mainly consists of components such as valve body, ball, valve seat, valve stem, loose flange, actuator (e.g., manual, electric, pneumatic). The loose flange is connected to the valve body with an adjustable structure, facilitating the adjustment of flange spacing during installation to adapt to the installation requirements of different pipelines.

The loose flange ball- Working principle: The valve is opened closed by rotating the valve stem to drive the ball. When the through-hole of the ball is aligned with the pipeline channel, the medium flows; when the ball rotates 90 degrees the through-hole is perpendicular to the channel, the medium is blocked, sealing is achieved by the close fit between the ball the valve seat.

The loose flange ball- Features advantages: The loose flange design makes installation more flexible, which can compensate for pipeline installation errors reduce installation difficulty; the flange connection has reliable sealing performance, suitable for medium low pressure working conditions; it is easy to operate, with quick opening closing low flow resistance; various materials (such as cast iron, stainless steel, etc.) are available to adapt to different media environments.

The loose flange ball- Technical parameters: The nominal diameter commonly includes specifications such as DN15-DN300; the nominal pressure is generally PN10-PN40; the applicable temperature range is approximately -20℃ to 120℃ (for ordinary materials) depending on the material, can be higher for special materials.

The loose flange ball- Application fields: Widely used in water supply drainage, heating, ventilation air conditioning, petrochemical, municipal engineering other fields, for controlling the on-off of media such as water, steam, oil products, gas.