Purchasing principle
The price of water treatment equipment is different, and the standard is different. To choose the right water treatment products, only the right ones are the best. When purchasing water treatment equipment, we should first consider the company's qualifications, understand the authenticity, the successful cases the company has done, how to provide after-sales service and other details. It will be customized according to users' requirements, and can also be configured with different configurations of high, medium and low end. Don't blindly pursue low-priced products.
After sales service. After water treatment equipment is used for a long time, many consumables need to be replaced or cleaned. When buying, you should ask whether the merchants will give discounts or after-sales service.
Configuration requirements
The configuration of water treatment equipment is full of traps because it is professional.
For pumps, experts think it is not necessary to choose imported pumps; In terms of filter materials, we should not only compare the price, but also compare the actual parameters of filter materials; For the controller, the water treatment equipment can adopt a relatively mature and stable controller; Regarding the choice of membrane, although there are many domestic membrane manufacturers, the expert's suggestion is to choose international brands, and the quality is relatively stable.
When evaluating different suppliers, enterprises must not only look at the price, because the water treatment equipment itself is an assembly, so we must compare the configurations item by item in detail.
In addition, it depends on whether this configuration is designed according to the actual situation of your enterprise and whether it can meet the requirements of water quality and use.
Safety of products
When many enterprises choose suppliers, the first consideration is safety. Security can be examined from the following aspects:
The first is the safety of process and technology, which can ensure that the required indicators can be achieved. Such as effective removal of heavy metal ions and control of microbial content. The components of water treatment equipment are safe, and there should be no harmful dissolved substances.
Secondly, the material of the pipeline. Because water treatment equipment will flow through various pipes and filter materials from the water inlet to the water outlet, it is necessary to control the materials of these pipes and materials to avoid adding new secondary pollutants harmful to people in the water.
Finally, the alarm system. When the equipment breaks down, there must be an alarm system to prevent sewage from entering the treatment part.
The actual situation of the enterprise
Finally, according to the actual situation of their own enterprises, choose suppliers with high cost performance.
To sum up, we should pay attention to the following four items when selecting water treatment equipment:
Look at qualifications
People's Republic of China (PRC) * * and the Health Supervision Center of the Ministry of Health of the People's Republic of China have clearly issued: Measures for the Supervision and Administration of Drinking Water Hygiene.
Among them, Article 21 clearly points out that all products without hygiene license issued by the Ministry of Health belong to "driving without a license" and are not protected by law.
Look at the material
Modern people all know that it is necessary to buy good pipes and fittings to decorate waterways. After installation, they should try water. Therefore, when choosing water treatment equipment, the second thing to look at is the material of the water tank. At present, there are stainless steel, glass fiber reinforced plastic, cast iron, aluminum, food-grade resin or PVC on the market. The first three are materials with good compression resistance and can be used as pre-filters. The latter two materials with poor compression resistance can only be used at the back end of the pre-filter screen as a direct drinking machine.
Among these materials, stainless steel has the best compression and corrosion resistance. The price is also relatively high.
Fixed function
When choosing water treatment equipment, we must first make clear our purpose. First of all, we should say whether it is purified water or softened water from a big concept.
Purifying water is to remove sediment, impurities, bacteria, heavy metals, residual chlorine, organic matter and some minerals from water.
Softening water is to remove calcium and magnesium ions from water, and the most direct thing is scale.
Generally, only cationic resin can be used to complete ion exchange and remove calcium and magnesium ions from softened water. Softened water has the advantages of cleaning skin, washing clothes soft and smooth, protecting water heater and faucet, preventing shower from being blocked by scale and eliminating water stains in sink.
Purified water is different from softened water, and it needs a variety of different filter materials to meet the predetermined purification requirements. Each filter material can play a different purification role, and how to reasonably match the components of the filter material is the key.