波纹管是指用可折叠皱纹片沿折叠弹性方向连接成的管状弹性活络元件。波纹管在仪器表面中使用广泛，主要用途是作为压力测量表面的测量元件，将压力转换成位移或力。波纹管管壁较薄，活络度较高，测量规划为数十帕至数十兆帕。它的开口端固定，密封端处于安闲情况，并使用辅佐的螺旋弹簧或簧片添加弹性。作业时在内部压力的作用下沿管子长度方向伸长，使活动端发作与压力成必定联络的位移。活动端带动指针即可直接指示压力的巨细。波纹管常常与位移传感器组合起来构成输出为电量的压力传感器，有时也用作阻隔元件。因为波纹管的扩展要求较大的容积改变，因此它的响应速度低于波登管。波纹管适于测量低压。
Dezhou Lianchen Pipe Industry Co., Ltd. is a company integrating R&D, production, sales and service of plastic pipes. As a company that promotes China's plastic pipes, Lianchen has been adhering to the business of “integrity, pragmatism, professionalism and innovation” since its establishment. Spirit and the business philosophy of “Quality wins the market, service enhances value”.
The company mainly produces stainless steel bellows, metal hoses, gas pipes, air-conditioning pipes, etc. In recent years, the production and sales of the company's products have shown a rapid growth trend, and the marketing network has gradually spread.
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