Price difference between black and white PVC pipes
聚氯乙烯是三大烯烃类中强度最大的一种PVC管不提倡用作给水管，常用在农田灌溉工程，城镇排水工程。而PE管呈白色，无毒，可作为给水管，可弯曲，常用在农村人饮工程，节水灌溉等工程。黑色pvc给水管是以卫生级聚氯乙烯树脂为主要原料，添加定量的稳定剂，润滑剂，填充剂，增色剂等，经塑料挤出机挤出成型和注塑机注塑成型，通过冷却，固化，定型，检验，包装等工序生产出的一种给水用管材。
PVC pipe is the strongest of the three alkenes. It is not recommended to be used as water supply pipe. It is often used in farmland irrigation projects and urban drainage projects. PE pipe is white, non-toxic, can be used as water supply pipe, can be bent, and is often used in rural drinking projects, water-saving irrigation and other projects. Black PVC water supply pipe is a kind of water supply pipe which is made of sanitary grade PVC resin as the main raw material, added with quantitative stabilizer, lubricant, filler, color enhancer, etc., extruded by plastic extruder and injection molding by injection molding machine, through cooling, curing, shaping, inspection, packaging and other processes.
pvc管的优点
Advantages of PVC pipe
pvc塑料给水管具有耐腐蚀，消菌等优点，是水管中的上等品，铜管接口的方式有卡套，焊接和自锁卡簧式等连接方式。卡套时间长了存在老化漏水的问题，焊接就是采用热熔工艺，将两连接件熔接，达到连接的效果。
The PVC plastic water supply pipe has the advantages of corrosion resistance and bacteria elimination, and is the top grade in water pipes. The copper pipe interface is connected by ferrule, welding and self-locking circlip. The ferrule has been aging and leaking for a long time. The welding is to use the hot melting process to weld the two connectors to achieve the connection effect.
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