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不锈钢阀门适用介质

网址:www.china-pipe.com.cn  2019-03-20  作者:admin    阅读:

不锈钢阀门通常应用于工作介质具有一定腐蚀性的场合。任何一种阀用材料,耐工作介质腐蚀的能力都是相对有限的,并受到许多因素的影响。如果在制造过程中采用的加工工艺与热处理工艺得当,进而保证这种材料的耐腐蚀性能。至于在浓度>98%的浓硝酸介质中,无论采用什么样的热处理工艺,这种钢材都不具有耐腐蚀性能。因此,在根据工作介质的性质来选用阀门材料时,必须同时研究介质的浓度、温度以及材料的热处理工艺等诸因素对耐腐蚀性能的影响。不锈钢阀门已成为各行业领域必采购的阀门产品,但国内能达到国际标准的阀门厂家却寥寥无几,所以顾客在采购不锈钢阀门前一定要要求商家提供各种不锈钢阀门的生产和出厂合格证,这样可以减少买到不合格的产品。如今不锈钢阀门和卫生级阀门达到国际化标准的阀门主要来自日本、德国、美国、英国以及国内一线城市上海。不锈钢阀门阀门是管路流体输送系统中控制部件,它是用来改变通路断面和介质流动方向,具有导流、截止、调节、节流、止回、分流或溢流卸压等功能。 用于流体控制的阀门,从最简单的截止阀到极为复杂的自控系统中所用的各种阀门,其品种和规格繁多。阀门可用于控制水、蒸汽、油品、气体、泥浆、各种腐蚀性介质。阀门的控制可采用多种传动方式, 如手动、电动、液动、气动、蜗轮、电磁动、电磁--液动、电--液动、气--液动、正齿轮、伞齿轮驱动等;可以在压力、温度或其它形式传感信号的作用下, 按预定的要求动作,或者不依赖传感信号而进行简单的开启或关闭,阀门依靠驱动或自动机构使启闭件作升降、滑移、旋摆或回转运动, 从而改变其流道面积的大小以实现其控制功能。

Stainless steel valves are usually used in situations where the working medium is corrosive to a certain extent. The corrosion resistance of any valve material to working medium is relatively limited and affected by many factors. If proper processing and heat treatment processes are adopted in the manufacturing process, the corrosion resistance of the material can be guaranteed. In the concentrated nitric acid medium with a concentration of more than 98%, no matter what heat treatment process is adopted, the steel has no corrosion resistance. Therefore, when selecting valve material according to the properties of working medium, it is necessary to study the influence of medium concentration, temperature and heat treatment process on the corrosion resistance of the material at the same time. Stainless steel valves have become the necessary purchasing products in various industries, but there are few domestic valve manufacturers that can meet international standards. Therefore, before purchasing stainless steel valves, customers must ask the merchants to provide production and factory certificates of various stainless steel valves, so as to reduce the purchase of substandard products. Today, stainless steel valves and sanitary valves meet international standards mainly from Japan, Germany, the United States, the United Kingdom and Shanghai, the first-tier city in China. Stainless steel valve is the control part of pipeline fluid delivery system. It is used to change the channel section and medium flow direction. It has the functions of diversion, cut-off, regulation, banzhi.37ix.com.cntiexinn.07858.netqingxiji.07858.netjilin.89ix.comshenyang.89ix.com

xining.89ix.comthrottling, check, diversion or overflow pressure relief. Valves for fluid control range from the simplest globe valves to various valves used in extremely complex automatic control systems. Valves can be used to control water, steam, oil, gas, mud, various corrosive media. Valve control can adopt a variety of transmission modes, such as manual, electric, hydraulic, pneumatic, worm wheel, electromagnetic, electromagnetic-hydraulic, electric-hydraulic, pneumatic-hydraulic, pneumatic-hydraulic, spur gear, bevel gear drive, etc. Under the action of pressure, temperature or other forms of sensing signals, the valve can operate according to the predetermined requirements, or simply open or close without relying on sensing signals. Closing, the valve relies on the driving or automatic mechanism to make the opening and closing parts move up and down, slip, swing or turn, thus changing the size of its runner area to achieve its control function.

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