Q41N锻造法兰球阀它具有旋转90度的动作，旋塞体为球体，有圆形通孔或通道通过其轴线。球阀在管路中主要用来做切断、分配和改变介质的流动方向，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。

      Q41N锻造法兰球阀的主体和附件都是锻造后再精加工，球体和阀杆做淡化处理，提高耐磨性能。可以做硬密封也可以做软密封。硬密封耐压42MPa,耐温630℃，软密封可以根据用户需要做成耐温80℃ 150℃和250℃，耐压可以到200MPa.可以安装气动 电动 液动等执行机构。Q41N锻造法兰球阀本身结构紧凑，密封稳定，结构简单，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。

Q41N锻造法兰球阀优点：

      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．紧密度好。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。

锻造法兰球阀

锻造法兰球阀是一种采用锻造工艺制造阀体，并通过法兰连接方式安装在管道系统中的球阀。锻造法兰球阀的阀体由锻造工艺制成，常用材质有碳钢、不锈钢或合金钢等，强度高、密封性好。球体通常由不锈钢等耐腐蚀材料制成，表面经精密加工，与阀座紧密配合以控制流体。阀杆一般由不锈钢或合金钢制成，用于传递操作力矩，带动球体旋转实现阀门的开闭。阀座采用耐腐蚀、耐高温材料，如聚四氟乙烯等，确保良好的密封性能。

锻造法兰球阀通过旋转阀杆，使球体上的通道与阀体进出口通道对齐或错开，实现流体导通或截断，只需旋转90°即可完成全开或全关动作，操作简便快捷，且易于实现自动化和远距离控制 。其具有流体阻力小、密封性能等特点，全通径设计可进一步降低流阻，通道平整光滑，不易沉积介质，还可进行清管通球 。

锻造法兰球阀的法兰通常与阀体一体锻造，强度和密封性更佳，且符合ANSI、DIN、GB等标准，便于与不同规格管道连接。此外，部分产品还具备自动泄压、防火等功能，适用于水、油、气体、蒸汽等多种介质，广泛应用于石油化工、天然气输送、城市供热等工业领域。

Forged - flange ball valves are ball valves whose valve bodies are manufactured by forging process are installed in the pipeline system through the flange - connection mode. The following is the product overview:

 The valve bodies of forged - flange ball valves are made by forging process, common materials include carbon steel, stainless steel alloy steel, etc., which have high strength good sealing performance. The ball is usually made of corrosion - resistant materials such as stainless steel, its surface is precisely processed to closely fit with the valve seat to control the fluid. The valve stem is generally made of stainless steel alloy steel, which is used to transmit the operating torque drive the ball to rotate to open close the valve. The valve seat is made of corrosion - resistant high - temperature - resistant materials, such as polytetrafluoroethylene, etc., to ensure good sealing performance.

This kind of ball valve makes the channel on the ball align with stagger the inlet outlet channels of the valve body by rotating the valve stem, so as to realize the conduction cut - off of the fluid. Only a 90° rotation can complete the full - open full - close action, which is simple quick to operate, easy to achieve automatic remote control. It has the characteristics of small fluid resistance excellent sealing performance. The full - bore design can further reduce the flow resistance, the channel is flat smooth, which is easy to deposit the medium, pigging ball - passing can also be carried out.

The flanges of forged - flange ball valves are usually forged integrally with the valve body, with better strength sealing performance, comply