In what aspects can we identify the quality of PVC steel wire hoses?
PVC steel wire hose is antibacterial and hydrolytic, has good chemical resistance, is extremely wear-resistant and the bottom layer of copper-plated steel wire strengthens the strength of the pipe. It is very resistant to high pressure, vacuum and compression. It has high shaft strength and is very fluid. The bending radius is approximately equal to that of the outside. diameter, can discharge static electricity spiral wire grounding. Widely used in abrasive solids such as dust, powder, fibers, chips and particles, gas and liquid environments, for dust removal and suction plants, industrial vacuum cleaners, paper and textile fibers.
Generally speaking, in terms of sewage, wastewater and ventilation pipes, PVC pipes save installation and labor costs by about 16-37% compared with cast iron pipes; making conduits saves 30-33% compared with using metal wire sleeves; and chlorination Polyvinyl chloride (PVC) pipes save 23-44% in hot and cold water compared to using copper pipes of the same size. Therefore, due to the advantages of PVC pipes, countries are actively developing and promoting PVC pipes.
Although generally cheap PVC pipes are also made of PVC materials, also called PVC pipes, and also have a braided layer inside, their service life, appearance, smell, pressure resistance, tensile strength, working pressure, etc. are significantly different.
The first is the smell. Smell it before you see it. This smell is emitted by the polybrominated diphenyl ethers contained in inferior polyvinyl chloride used to make PVC materials. Polybrominated diphenyl ethers are harmful to humans and the natural environment. Its harm is becoming increasingly serious. Its smell is very persistent and highly fat-soluble, causing harm to the human liver and nervous system. It also interferes with thyroid endocrine and can easily cause cancer.
Secondly, the compression resistance effect is poor, the bonding strength is poor, and it is easy to harden in cold weather, and it is like a wooden stick when held in the hand, and it is easy to break; although some pipes feel quite soft in winter, it is because cold-resistant plasticizers are added during the production of the pipes. The agent is phthalate, which is a chronic poison to the human body. It can easily cause a decrease in liver and kidney function and a decrease in red blood cells in the blood. It is mutagenic and carcinogenic.
The third braided layer is made of low-quality polyester material. The inner layer, outer layer and middle braided layer are not firmly bonded and can be easily peeled off, which affects the working pressure and service life.
