进口一片式球阀｜进口球阀
德国托普进口一片式球阀优点：
适用于经常操作，启闭迅速、轻便。
1.流体阻力小。
2.结构简单，相对体积小，重量轻，便于维修。
3.密封性能好
4.不受安装方向的限制，介质的流向可任意。
5.振动，噪声小。
进口球阀的质量不仅*于使用寿命*，更为耐磨而设计，AIR阀门为您提供优质的产品和多方面的服务。
进口一片式球阀产品概述：
进口一片式球阀zui大优点就是有效介质从阀体处外漏。进口二片式球阀和进口三片式球阀都是用螺栓将分开的阀体连接成一体，阀体间有密封垫片进行密封。温度高时或安装不当会存在外漏可能。一片式球阀由于阀体为整体式，外漏点就只有阀杆处密封一处，可靠性要高些。
法兰保温球阀就采用一片式球阀结构，保温夹套把阀体部分包裹在内，介质不会泄漏到保温夹套中，反之，保温夹套中的加热蒸汽或导热油也不会进入到管路介质中。确保了安全。
一片式螺纹球阀由于阀杆密封处比较薄弱，通常适用压力不高的介质。压力较高时应选用二片式螺纹球阀或三片式螺纹球阀。
进口一片式球阀开启过程：
进口一片式球阀和法兰闸阀是同属一个类型的阀门，区别在它的关闭件是个球体，球体绕阀体中心线作旋转来达到开启、关闭的一种阀门。 球阀在管路中主要用来做切断、分配和改变介质的流动方向。广式球阀是近几年来被广泛采用的一种新型阀门，在关闭位置，球体受阀杆的机械施压作用，紧压在阀座上。当逆时针转动手轮时，阀杆则反向运动，其底部角形平面使球体脱开阀座。阀杆继续提升，并与阀杆螺旋槽内的导销相互作用，使球体开始无摩擦地旋转。直至到全开位置，阀杆提升到极限位置，球体旋转到全开位置。
进口一片式球阀的关闭过程
关闭时，顺时针旋转手柄，阀杆开始下降并使球体离开阀座开始旋转。继续旋转手轮，阀杆受到嵌于其上螺旋槽内的导销的作用，使阀杆和球体同时旋转90°。快要关闭时，球体已在与阀座无接触的情况下旋转了90°。手轮转动的zui后几圈，阀杆底部的角形平面机械地楔向压迫球体，使其紧密地压在阀座上，达到*密封。
Imported ball valve
Germany top import valve advantages:
Suitable for regular operation, open and close quickly and easily.
1 small fluid resistance.
2 the utility model has the advantages of simple structure, relatively small size, light weight and convenient maintenance.
3 good sealing performance
4 is not limited by the installation direction, the flow of media can be arbitrary.
5 vibration, small noise.
The quality of the ball valve is not limited to the use of a long life, more wear-resistant design, AIR valve to provide you with quality products and services.
Import a ball valve product overview:
The biggest advantage of imports of a piece of ball valve is the effective medium leakage from the valve body. Imported two piece ball valve and imported ball valve are used to separate the three pieces of the valve body into one body, there is a seal gasket seal between the valve body. If the temperature is high or improper installation, there will be leakage. A ball valve as the valve body is an integral type, only the stem seal leakage point at a higher reliability.
Flange insulation ball valve with a ball valve structure, insulation jacket wrapped the inner part of the valve body, the medium does not leak to the insulation jacket, on the other hand, the insulation jacket of heating steam or hot oil can not enter into the pipeline medium. Ensure safety.
A piece of threaded ball valve stem seal is relatively weak, usually the pressure is not high medium. High pressure should be used when two pieces of thread ball valve or three piece ball valve.
Import a ball valve opening process:
The import of a piece of ball valve and flange gate valve is the same type of valve, the difference in its closure is a sphere, the ball around the center line of the body to rotate to achieve the opening and closing of a valve. Ball valve in the pipeline is mainly used for cutting, distribution and change the direction of the flow of media. Wide ball valve is widely used in recent years, a new type of valve in the closed position, the ball by the mechanical pressure of the stem, the pressure on the seat. When the handwheel counterclockwise, the stem is the reverse movement, the bottom of the angular plane to disengage the ball seat. The valve stem continues to lift and interacts with the guide pin in the stem spiral groove so that the ball begins to rotate without friction. Until the full open position, the valve stem to the limit position, the ball rotation to full open position.
The closing process of imported ball valve
When the valve is closed, the handle is rotated clockwise, the valve stem begins to fall and the ball starts to rotate from the valve seat. Continue to rotate the handwheel, the valve stem is embedded in the spiral groove on the role of the guide pin, so that the stem and the ball simultaneously rotate 90 degrees. Close, the ball has no contact with the valve seat in the case of rotation of 90 degrees. At the bottom of the handwheel, the angle of the bottom of the valve stem is mechanically wedged into the compression sphere, so that it is tightly pressed on the valve seat to achieve complete sealing.
