卡套高压球阀结构设计:

卡套连接：主要由具有 24 度或者40度锥形孔的接头体、带尖锐内刃的卡套和起压紧作用的压紧螺母三部分组成。旋紧螺母时，卡套被推进锥孔中并随之变形，卡套与接头体内锥面形成球面接触密封，同时卡套的内刃口嵌入钢管外壁，压出环形凹槽，实现密封。

球体与阀座：球体通常采用高强度、耐腐蚀的合金材料制成，如不锈钢、合金 C-276 等。阀座采用弹性密封结构，与球体紧密配合，保障密封，启闭轻松。

阀杆：采用有倒密封的下装式结构，当阀腔异常升压时，阀杆不会被冲出，确保了阀门的安全性和稳定性。

卡套高压球阀工作原理:

卡套高压球阀是用于中、小口径管路的启闭装置，通过介质压力将球体压紧在出口端阀座上，实现对管路介质的接通或截断控制。采用 90° 传动，球体绕球芯旋转 90 度即可实现开启或关闭，开关方便迅速14。

卡套高压球阀产品特点:

密封性能好：采用 PTFE（特氟隆）等材料作为密封，具有良好润滑性和弹性，与球体摩擦系数小，使用寿命长。阀座的弹性密封结构以及卡套的密封方式，确保了阀门在高压下的密封性，有效防止介质泄漏。

流体阻力小：全开时球体通道、阀体通道和连接管道的截面积相等，并且成直线相通，介质流过球阀相当于流过一段直通的管子，在各类阀门中流体阻力较小，可有效减少能量损耗。

操作便捷：从全开到全关只需旋转 90°，操作方便，便于远距离控制，且可设置 90° 开关定位机构，根据需要加锁以防止误操作。

结构紧凑：整体结构简单、体积小、重量轻，便于安装、拆卸和维护，占用空间小，适用于空间有限的场所。

适用范围广：工作压力可达 70MPa 甚至更高，能承受超高压液体、超高压气体或其混合物的作用。适用的介质广泛，包括气体、燃气、水、油品、液化气、食品、制药等多种介质。

卡套高压球阀主要参数:

公称口径：通常为 DN6-DN50，可满足不同管径的管道连接需求。

公称压力：一般可达 70MPa，具体压力等级根据不同型号和厂家有所差异。

连接方式：有螺纹、法兰、卡套、球形接头、焊接等多种连接方式，方便与各种管道系统连接。

阀体材质：常见的有碳钢、不锈钢等，可根据不同的使用环境和介质要求进行选择。

卡套高压球阀应用领域:

卡套高压球阀广泛应用于水处理设备、化工设备、石化设备、石油设备、造纸设备、采矿设备、电力设备配套、液化气设备、食品设备、制药设备等领域，也常用于超高压试压台、气压泵、液压泵、深海探测仪等行业。

Structural Design of Compression Fitting High-pressure Ball Valve

Compression Fitting Connection

It is mainly composed of three parts: the connector body with a 24-degree 40-degree conical hole, the compression fitting with a sharp inner cutting edge, the compression nut for tightening. When the nut is tightened, the compression fitting is pushed into the conical hole deforms accordingly. The compression fitting forms a spherical contact seal with the inner conical surface of the connector body. At the same time, the inner cutting edge of the compression fitting embeds into the outer wall of the steel pipe, pressing out an annular groove to achieve a reliable seal.

Ball Valve Seat

The ball is usually made of high-strength corrosion-resistant alloy materials, such as stainless steel, alloy C-276, etc. The valve seat adopts an elastic sealing structure, which closely cooperates with the ball, ensuring reliable sealing easy opening closing.

Valve Stem

It adopts a lower-mounted structure with a back seal. When the pressure in the valve cavity rises abnormally, the valve stem will be ejected, ensuring the safety stability of the valve.

Working Principle of Compression Fitting High-pressure Ball Valve

The compression fitting high-pressure ball valve is an opening closing device for medium small-diameter pipelines. The ball is pressed against the valve seat at the outlet end by the medium pressure to achieve the control of connecting cutting off the pipeline medium. It adopts a 90° transmission. The ball rotates 90 degrees around the ball core to achieve opening closing, which is convenient quick to switch.

Product Features of Compression Fitting High-pressure Ball Valve

Good Sealing Performance

Materials such as PTFE (Teflon) are used as seals, which have good lubricity elasticity, a small friction coefficient with the ball, a long service life. The elastic sealing structure of the valve seat the sealing method of the compression fitting ensure the sealing performance of the valve under high pressure effectively prevent medium leakage.

Small Fluid Resistance

When fully open, the cross-sectional areas of the ball passage, the valve body passage, the connecting pipeline are equal are in a straight line. The medium flowing through the ball valve is equivalent to flowing through a straight pipe section, which has the smallest fluid resistance among various types of valves can effectively reduce energy consumption.

Convenient Operation

It only needs to rotate 90° fully open to fully closed, which is convenient for operation remote control. A 90° switch positioning mechanism can be set, a lock can be added as needed to prevent misoperation.

Compact Structure

The overall structure is simple, small in size, light in weight, easy to install, disassemble, maintain, occupies a small space, making it suitable for places with limited space.

Wide Application Range

The working pressure can reach up to 70MPa even higher, it can withstand the action of ultra-high-pressure liquids, ultra-high-pressure gases, their mixtures. It is suitable for a wide range of media, including gases, gas, water, oil products, liquefied gas, food, pharmaceuticals, many other media.

Main Parameters of Compression Fitting High-pressure Ball Valve

Nominal Diameter: Usually DN6-DN50, which can meet the connection requirements of pipelines with different diameters.

Nominal Pressure: Generally, it can reach up to 70MPa, the specific pressure grade may vary according to different models manufacturers.

Connection Mode: There are various connection modes such as threads, flanges, compression fittings, spherical joints, welding, which are convenient for connection with various pipeline systems.

Valve Body Material: Common materials include carbon steel, stainless steel, etc., which can be selected according to different usage environments medium requirements.

Application Fields of Compression Fitting High-pressure Ball Valve

The compression fitting high-pressure ball valve is widely used in the fields of water treatment equipment, chemical equipment, petrochemical equipment, petroleum equipment, paper-making equipment, mining equipment, power equipment supporting, liquefied gas equipment, food equipment, pharmaceutical equipment, etc. It is also commonly used in industries such as ultra-high-pressure pressure testing benches, air pressure pumps, hydraulic pumps, deep-sea detectors.