产品名称：外螺纹针型阀 

      产品型号：GJ21Y

      工作压力：3000PSI~6000PSI(413bar),高可达10000PSI(689bar)
      工作温度：
      PTFE填料：-38oC 至 180oC (-100oF 至 356oF)
      PPL 填料：-38oC 至 280oC (-100oF 至 536oF)
      石墨填料：-24oC 至 480oC (-75oF 至 896oF)
      连接端口:G ZG NPT

      适用介质：天然气 蒸汽 水 油品

      鑫盛源外螺纹针型阀优点：

      1、两截阀杆设计，上阀杆螺纹淡化工艺处理

      2、下阀杆表经经滚压硬化处理上阀杆螺纹的润滑脂与系统介质隔离

      3、无旋转的下阀杆垂直运动代替旋转升降，减少阀杆行程对填料的磨擦，手感更轻便

      4、阀门在全开位置具有背密封功能

      5、可选面板安装

      6、可安装手柄或者手轮操作，稳固耐用多种颜色手柄可供选择

      7、每只阀门在出厂前均按设计压力的1.1倍进行氮气密封测试,并按额定工作压力的1.5倍水压进行壳体强度测试

外螺纹针阀

外螺纹针阀是一种采用外螺纹连接方式的针型阀，主要用于小流量、高压管路系统中对流体进行精密调节和截断，尤其适用于空间受限或需要灵活装配的场景。

外螺纹针阀核心结构为针状阀芯，与阀座精密配合，能实现流量的精细调控和严密截断，密封性能稳定。阀体一端或两端设计为外螺纹（如NPT、G、M等标准螺纹），可直接与带内螺纹的管道、仪表或设备连接，无需额外法兰或转换部件，安装便捷且结构紧凑，节省管路空间。阀体材质多选用碳钢、不锈钢（如304、316）等，适配水、油、气体及部分腐蚀性介质，工作压力通常可达32MPa，工作温度范围根据材质不同约为-40℃至450℃，广泛应用于石油、化工、电力、仪器仪表等行业的高压管路系统。

The male thread needle valve is a type of needle valve with male thread connection, mainly used for precise regulation shut-off of fluids in small-flow, high-pressure pipeline systems, especially suitable for space-constrained flexibly assembled scenarios.

Its core structure is a needle-shaped valve core, which fits precisely with the valve seat, enabling fine flow control tight shut-off with excellent sealing performance. One both ends of the valve body are designed with male threads (such as NPT, G, M other standard threads), which can be directly connected to pipes, instruments equipment with female threads, without additional flanges conversion components. It features convenient installation, a compact structure, space-saving in pipelines. The valve body is mostly made of carbon steel, stainless steel (e.g., 304, 316), etc., suitable for water, oil, gas some corrosive media. The working pressure can usually reach 32MPa, the working temperature range is approximately -40℃ to 450℃ depending on the material. It is widely used in high-pressure pipeline systems in industries such as petroleum, chemical industry, electric power, instruments.