双卡套针阀

双卡套针阀是一种通过卡套连接，用于截断或准确调节流量的阀门，在工业领域应用广泛 。

双卡套针阀- 结构特点：通常由阀体、阀杆、卡套、密封圈等组成。阀体设有与管道相连的通道，卡套由前后卡环等构成，螺母可旋紧固定。旋紧螺母时，卡套前端外侧与接头体锥面贴合，内刃咬入无缝管，实现密封。

双卡套针阀- 工作原理：依靠阀杆上下运动控制开关。关闭时，阀杆带动针状阀芯与密封圈紧密接触，截断流体；开启时，阀芯移动，流体通过通道流通。可通过更换阀芯实现截止或调节截流功能。

双卡套针阀- 性能参数：工作压力一般在1.0MPa-50.0MPa，也有能承受更高压力的产品 。工作温度范围较广，不同材质有所差异，如316L不锈钢材质的耐温范围可达-30℃-200℃左右。

双卡套针阀- 材质选择：常见材质有304不锈钢、316不锈钢等。具有良好的耐腐蚀性和机械性能，能适应多种介质和工作环境。

双卡套针阀- 产品优势：密封性能好，采用软硬双重密封结构；结构紧凑，体积小，安装维护方便；稳定性高，运动部件少；使用寿命长，不锈钢材质耐腐蚀。

双卡套针阀- 应用领域：广泛应用于石油、化工、医药、食品、电子等行业，适用于中、小口径管路，可控制各种压力、温度下的气体、液体等介质的通断或流量。

Double - ferrule needle valve is a kind of valve that connects through ferrules is used to cut off precisely regulate the flow rate, which is widely used in the industrial field . The product overview is as follows:

Double - ferrule needle valve- Structural features: It is usually composed of valve body, valve stem, ferrules, sealing rings, etc. The valve body is provided with a channel connected to the pipeline. The ferrules are composed of front rear ferrule rings, the nut can be tightened for fixation. When the nut is tightened, the outer side of the front - end of the ferrule fits closely with the conical surface of the joint body, the inner edge bites into the seamless pipe to achieve sealing.

- Working principle: It relies on the up - - down movement of the valve stem to control the on - off. When closed, the valve stem drives the needle - shaped valve core to closely contact with the sealing ring, cutting off the fluid. When opened, the valve core moves the fluid flows through the channel. The functions of cut - off flow regulation can be achieved by replacing the valve core.

Double - ferrule needle valve- Performance parameters: The working pressure is generally 1.0MPa - 50.0MPa, there are also products that can bear higher pressure . The working temperature range is wide, which varies with different materials. For example, the temperature - resistant range of 316L stainless - steel material can reach about - 30℃ - 200℃.

- Material selection: Common materials include 304 stainless steel, 316 stainless steel, etc. They have good corrosion resistance mechanical properties, can adapt to a variety of media working environments.

Double - ferrule needle valve- Product advantages: Good sealing performance, adopting a hard - soft double - sealing structure; compact structure, small volume, convenient for installation maintenance; high reliability, with few moving parts; long service life, the stainless - steel material is corrosion - resistant.

Double - ferrule needle valve- Application fields: It is widely used in petroleum, chemical, pharmaceutical, food, electronics other industries. It is suitable for small - medium - diameter pipelines, can control the on - off flow rate of gas, liquid other media under various pressures temperatures.