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您知道镀锌管尺寸是多少吗?

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【 发布于:2018-04-08 15:38:49 】


镀锌管属于低压流体输送用焊接钢管的一种,也称一般焊管。那么镀锌管的尺寸规格是多少呢?

Galvanized pipe is a kind of welded pipe for low pressure fluid transportation, also known as general welded pipe. So what's the size of the galvanized pipe?

镀锌管实际上就是将钢管镀锌,为的是提高钢管的耐腐蚀性。镀锌管分为电镀锌管和热镀锌管。相比之下,热镀锌管的耐腐蚀性比电镀锌管强很多。因为热镀锌管的镀锌层比较厚。镀锌管主要用作煤气和暖气管,而不宜用作水管。

Galvanized pipe is actually galvanized steel pipe, so as to improve the corrosion resistance of steel pipes. Galvanized pipes are divided into galvanized and hot-dip galvanized pipes. In contrast, the corrosion resistance of hot-dip galvanized pipe is much stronger than that of galvanized steel pipe. Because the galvanizing layer of the hot-dip galvanized pipe is thicker. Galvanized pipes are mainly used for gas and heating pipes, but not for water pipes.

一般来说,济南镀锌管管子的直径可分为外径、内径、公称直径。管材为无缝钢管的管子的外径用字母D来表示,其后附加外直径的尺寸和壁厚,管子的公称直径和其内径、外径都不相等。

济南镀锌管

Generally speaking, the diameter of Ji'nan galvanized pipe can be divided into outer diameter, inner diameter and nominal diameter. The outer diameter of pipe for seamless pipe is expressed by the letter D, and then the size and wall thickness of the pipe are attached. The nominal diameter of the pipe is not equal to its inner diameter and outer diameter.

公称直径是接近于内径,但是又不等于内径的一种管子直径的规格名称,济南镀锌管在设计图纸中所以要用公称直径,目的是为了根据公称直径可以确定管子、管件、阀门、法兰、垫片等结构尺寸与连接尺寸,公称直径采用符号DN表示,如果在设计图纸中采用外径表示,也应该作出管道规格对照表,表明某种管道的公称直径,壁厚。

The nominal diameter is close to the inner diameter, but it is not equal to the diameter of the diameter of the inner diameter. In the design drawing, the Ji'nan galvanized pipe should be called the nominal diameter. The purpose is to determine the pipe, pipe, valve, flange, gasket and other structure size according to the nominal diameter. The nominal diameter is used to use the nominal diameter. The number DN indicates that if the outer diameter is used in the design drawing, a piping gauge table should be made, which indicates the nominal diameter and wall thickness of a pipe.

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