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锻钢螺纹闸阀

锻钢螺纹闸阀是一种采用锻造工艺制造、通过螺纹连接方式与管道相连的闸阀,主要用于截断或接通管路中的介质。


公称压力:PN10-32Mpa、ANSI 150-4500LB 等。

公称通径:DN10-50

适用温度:根据材质不同有所差异,如碳钢材质的适用温度一般为 - 29℃-425℃,不锈钢材质可适用于 - 29℃-500℃的范围。

适用介质:适用于水、蒸汽、油品、硝酸、醋酸、氧化性介质等多种介质。


工作原理

其核心启闭件为塞形阀瓣,密封面呈平面或锥面,阀瓣沿流体中心线作直线运动,通过阀杆的升降或旋转升降实现阀门的启闭,从而控制介质的通断。

Products and services that meet fluid control requirements

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.

Detail

结构特点

● 阀体材质:采用锻造钢材,如 A105 碳钢、304/316 不锈钢等,强度高、抗冲击和耐压性能优异,适合高压介质输送。

● 连接方式:通常采用内螺纹连接,安装便捷,适合中小口径管道,一般公称直径≤DN50。

● 阀杆设计:阀杆运动形式分为升降杆式和升降旋转杆式。按阀杆螺纹位置,可分为外螺纹式和内螺纹式。

● 密封形式:属于强制密封式阀门,关闭时需向阀瓣施加压力以确保密封面不泄漏。部分型号采用自密封结构,介质由阀瓣上方进入阀腔,在介质压力作用下可增强密封性,同时降低关闭操作力。也有填料密封式和波纹管密封式等不同密封形式,波纹管密封可减少介质泄漏,适用于有毒、腐蚀性介质。

Product Application Scope

These devices are suitable for accurately controlling media such as gases, liquids, steam, etc., and maintaining process parameters such as pressure, flow rate, temperature, and liquid level at given values. Especially suitable for work environments where the allowable pressure difference is small and the allowable leakage is also small, and the pressure difference is not significant.

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