一、简介：
   两片式球阀是一种比较新型的球阀类别，它有着自身结构所*的一些特点：开关无摩擦，密封不易磨损，启闭力矩小。这样可减小所配执行器的规格。配以多回转电动执行机构，可实现对介质的调节和严密切断。广泛适用于石油、化工、城市给排水等要求严格切断的工况。是靠旋转阀恋来使阀门畅通或闭塞。两片式球阀开关轻便，体积小，可以做成很大口径，密封可靠，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，在各行业得到广泛的应用。

1. Introduction:

The two-piece ball valve is a relatively new type of ball valve. It has some of the characteristics of its own structure: the switch is frictionless, the seal is not easy to wear, and the opening and closing torque is small. This can reduce the size of the actuator. Equipped with a multi-turn electric actuator, it can realize the adjustment and close shut-off of the medium. It is widely used in working conditions that require strict cut-off such as petroleum, chemical industry, and urban water supply and drainage. It is to make the valve unblocked or blocked by rotating the valve. The two-piece ball valve switch is light, small in size, can be made into a large diameter, reliable in sealing, simple in structure and convenient in maintenance. The sealing surface and the spherical surface are often closed and are not easily eroded by the medium. It is widely used in various industries.

二、特点：
1、流体阻力小，其阻力系数与同长度的管段相等。
2、结构简单、体积小、重量轻。
3、紧密可靠，目前球阀的密封面材料广泛使用塑料、密封性好，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。 球旋转90度时，在进、出口处应全部呈现球面，从而截断流动。

2. Features:

1. The fluid resistance is small, and its resistance coefficient is equal to that of a pipe section of the same length.

2. Simple structure, small size and light weight.

3. It is tight and reliable. At present, the sealing surface material of the ball valve is widely used in plastics with good sealing performance, and it has also been widely used in the vacuum system.

4. Convenient operation, rapid opening and closing, only need to rotate 90° from fully open to fully closed, which is convenient for remote control.

5. Convenient maintenance, simple structure of the ball valve, generally movable sealing ring, easy to disassemble and replace.

6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes.

7. It has a wide range of applications, with a diameter ranging from a few millimeters to a few meters, and can be applied from high vacuum to high pressure. When the ball rotates 90 degrees, it should show a spherical surface at the entrance and exit, so as to cut off the flow.

三、结构特点：
1、启闭无摩擦。这一功能完了传统阀门因密封面之间相互摩擦而影响密封的问题。
2、上装式结构。对装在管道上的阀门可直接在线检查与维修，能有效减少装置停车，降低成本。
3、单阀座设计。消除了阀门中腔介质因异常升压而影响使用安全的问题。
4、低扭矩设计。特殊结构设计的阀杆，只需配一个小手把阀门就能轻松启闭。
5、楔形密封结构。阀门是靠阀杆提供的机械力，将球楔压到阀座上而密封，使阀门的密封性不受管线压差变化的影响，在各种工况下密封性能都有可靠保证。
6、密封面的自清洁结构。当球体倾离阀座时，管线中的流体沿球体密封面成360°均匀通过，不仅消除了高速流体对阀座局部的冲刷，也冲走了密封面上的聚积物，达到自清洁的目的。

3. Structural features:

1. There is no friction when opening and closing. This function eliminates the problem of traditional valves affecting the sealing due to mutual friction between the sealing surfaces.

2. Top-mounted structure. The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce device shutdown and reduce costs.

3. Single valve seat design. Eliminates the problem that the medium in the valve cavity affects the safety of use due to abnormal pressure increase.

4. Low torque design. The valve stem with special structure design can easily open and close the valve with only a small handle.

5. Wedge-shaped sealing structure. The valve is sealed by the mechanical force provided by the valve stem to press the ball wedge onto the valve seat, so that the sealing performance of the valve is not affected by the change of pipeline pressure, and the sealing performance is reliably guaranteed under various working conditions.

6. Self-cleaning structure of the sealing surface. When the ball tilts away from the valve seat, the fluid in the pipeline passes through the ball sealing surface at 360° uniformly, which not only eliminates the local washing of the valve seat by the high-speed fluid, but also washes away the accumulation on the sealing surface to achieve the purpose of self-cleaning .

四、主要参数：
连接形式:螺纹
公称通径:1/2"∼4"
适用介质:水,油,蒸汽,碳酸,硝酸
压力范围:1000WOG
启闭力N:400∼500
适用温度:-40~200（°C）
主体材料:不锈钢,304.316
设计生产采用:标准, ISO, API, GB, BS等标准设计生产, 其安全性和质量性都经过严格处理发放国内外市场

4. Main parameters:

Connection form: thread

Nominal diameter: 1/2"∼4"

Applicable medium: water, oil, steam, carbonic acid, nitric acid

Pressure range: 1000WOG

Opening and closing force N: 400∼500

Applicable temperature: -40~200 (°C)

Body material: stainless steel, 304.316

Design and production adopt: standard, ISO, API, GB, BS and other standards for design and production, and its safety and quality have been strictly processed and released to domestic and foreign markets

五、实物图：304不锈钢卫生级两片式球阀316球阀生产厂家

公司简介：

安徽利勒洁净设备科技有限公司是国内专业生产制造洁净卫生级阀门管件，主要应用于食品机械行业、制药机械行业、乳制品行业、酿酒饮料行业以及精细化工等行业高精度卫生级流体设备的专业生产厂家，产品规格齐全；产品主要有：

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止回阀，过滤器、呼吸器、换向阀、防混阀、安全阀；304不锈钢卫生级两片式球阀316球阀生产厂家

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