目前，国内常用的喷水灭火系统消防水管一般采用镀锌钢管或镀锌无缝钢管。但由于镀锌管在防腐、防结垢和抗菌等方面的性能较差，一些消防管生产企业开始生产覆膜塑料消防管。导入多方面的元素，现在市场上常见的是涂塑钢管。一张涂塑钢管认为镀锌管和涂塑钢管从成本类似,但由于涂塑钢管的使用寿命是6 - 7次的涂塑钢管,总结涂塑钢管的成本价格和涂塑钢管,使用寿命可以看到涂塑钢管比涂塑钢管便宜得多。另外，塑料钢管的粉末涂料不含有机溶剂，对涂料生产人员和涂料人员的健康造成危害。而粉末涂料属于封闭的涂料系统，喷涂粉末涂料可回收再利用，涂料利用率高达98%，可节省大量有限的人力资源。另外，国外消防给水系统施工多采用紫铜管和不锈钢管，由于紫铜管和不锈钢管造价较高，在我国工程实际应用较少。
At present, galvanized steel pipe or seamless galvanized steel pipe is commonly used as the fire water pipe of sprinkler system in China. However, due to the poor performance of galvanized pipe in anti-corrosion, anti scaling and anti-bacterial, some fire pipe manufacturers began to produce plastic coated fire pipes. Introduction of various elements, now common in the market is coated steel pipe. A piece of plastic coated steel pipe thinks that the cost of galvanized steel pipe is similar to that of plastic coated steel pipe, but because the service life of plastic coated steel pipe is 6-7 times, the cost price of plastic coated steel pipe and the service life of plastic coated steel pipe are summarized. It can be seen that the service life of plastic coated steel pipe is much cheaper than that of plastic coated steel pipe. In addition, the powder coating of plastic steel pipe does not contain organic solvent, which is harmful to the health of coating production personnel and coating personnel. The powder coating belongs to the closed coating system, which can be recycled and reused. The utilization rate of the coating is as high as 98%, which can save a lot of limited human resources. In addition, the construction of fire water supply system in foreign countries mostly uses copper pipe and stainless steel pipe. Because of the high cost of copper pipe and stainless steel pipe, the actual application in China is less.
The plastic steel pipe is coated on the basis of steel pipe, and the thermosetting powder coating is applied on the outside, which has high adhesion, impact resistance, corrosion resistance and weather resistance. The inner wall is coated with high adhesion, corrosion resistance and food grade hygiene grade thermoplastic powder coating. The water supply composite steel pipe coated with plastic inside and outside was prepared by sandblasting chemical double pretreatment, preheating, inner coating, outer coating, solidification and post-treatment.
Hot dip plastic steel pipe has a wide range of applications: internal and external plastic coated cable curing sleeve is suitable for cable laying on the ground, and also for cable crossing bridge and river.
Usage: 2. Cable maintenance pipe and special accessories are used together with Anshun electric plastic immersed steel pipe, which can form multi-layer and multi row cable pipe system according to different engineering needs. Excavation of hot-dip plastic steel pipe:
Groove depth: the groove depth shall be excavated according to the design depth of the project. Trench width: with pipeline connection, the gap required for foundation construction and backfilling is small.
Foundation construction: cable trench bottom is flat. For the soft electric plastic coated steel pipe in the soil at the bottom of the trench, a layer of sand or a layer of concrete plastic coated steel pipe shall be paved and then rammed. Maybe according to the detailed design requirements. There is no air in the pipe. When the hot-melt plastic smooth pipe is blocked, the metal saw shall be used instead of the grinding wheel saw. It can be forced to cut the anticorrosive coating on the surface of the hot-melt plastic steel pipe.
The above is the relevant content introduced by Jinan galvanized pipe manufacturer. For more information, please visit the website: http://www.jnxxjm.com