With the development of the economy, safety protection equipment has received more and more attention from enterprises, especially those engaged in dangerous work and laboratory personnel. Eye protection is even more critical. At this time, eyewash devices have to be mentioned. However, the eyewash market is mixed, and the quality of the products is uneven. It is difficult to distinguish the true from the false. It is really a headache. Shanghai Patchian will teach you how to buy a good quality eyewash.
The main material of the eyewash is made of steel pipes, which are divided into seam steel pipes and seamless steel pipes in terms of process. Seam steel pipes are mainly made of steel plate double welding, which is relatively cheap and widely used. Seamless steel pipes are mostly used in the machinery industry, which can withstand ultra-high pressure, and are mainly used as pipelines or structural parts for conveying fluids. Of course, there are also some seamless steel pipes on the market that use seamed steel pipes to be heated as a whole and then drawn or rolled with a core head. They are mainly small in size. This type of pipe is a seamless pipe only in terms of shape. In fact, the quality is not very good. good.
2. On-site use environment
1. The ambient temperature
When the minimum temperature reaches zero degrees or below, the water in the conventional eyewash will freeze, which will affect the normal use of the equipment. Therefore, an antifreeze emergency shower eyewash must be selected to ensure that the equipment can be used normally. For eyewashes installed outdoors, rain, wind and sand, sunshine and other factors will also affect the use of eyewashes. This series of factors must be taken into consideration when making product selection.
2. Characteristics of chemical substances and related substances
Due to the on-site use environment of eyewash or shower equipment and related material characteristics, there will be some corresponding regulations on its materials. At present, in the domestic market, the materials used in domestic eyewash and shower equipment are quite different, mainly carbon steel, 202 stainless steel, ordinary 304 stainless steel and sanitary 304 stainless steel, etc. The corrosion resistance of the product depends on the material. There is a big difference. The sanitary 304 stainless steel has the strongest corrosion resistance and is not easy to cause secondary pollution. Other materials are easily corroded.
3. Installation, use and after-sales service
As an important emergency rescue and safety equipment, the eyewash is extremely important for installation, maintenance, and repair after the procurement process is completed. Therefore, when choosing an eyewash, you should focus on the convenience of the installation stage; the reliability during use, such as no water leakage, etc.; Disassembly, easy replacement, easy reinstallation, low maintenance cost and other issues.