With the continuous improvement of science and technology and industrial level in modern society, combined with the current situation of water resources, various water purifiers appear in front of us, whether they are different types or brands of water purifiers, the rubber seals among them, They are all indispensable key parts. Water purifiers can effectively remove impurities, pollutants, and bacteria in water and provide us with clean and safe drinking water. As one of the key components in the water purifier, rubber seals play an indispensable role. LindePolymer will take you through the functions, types, material selection and maintenance of rubber seals in water purifiers, and help you better understand the importance and usage precautions of rubber seals in water purifiers.

The main functions of rubber seals

  1. Powerful sealing ability: One of the main functions of rubber seals in water purifiers is to ensure the sealing between various connections and components inside the water purifier. They are generally installed at locations such as the connection filter element, filter element shell, filter element holder, and pipe interface to prevent internal water flow or pollutants in the water from flowing out of the connection gaps, and at the same time, prevent external pollutants from entering the interior of the water purifier. Function. Whether the sealing function is strong or not is extremely important for the normal operation of the water purifier and the cleanliness of the filtered water.
  2. Filtration function: The rubber seals in some water purifiers also have the ability to filter. Special rubber materials and structures can prevent small particles, bacteria, viruses and other pollutants in the water from passing through. The filter element sealing ring of a water purifier mainly has this filtering function. Installing it not only ensures the sealing effect of the filter element installation position, but also does not hinder the smooth flow of water, and also brings higher quality water filtration and purification. Function.
  3. Shock absorption and buffering function: Because the rubber seal itself has elastic and soft properties, the advantages of this performance can also provide shock absorption and buffering effects. In usage scenarios with high water pressure or large changes in water flow, rubber seals can withstand these pressures and strains, and stably perform the function of maintaining the seal of the connection part, while also reducing the impact of water pressure on other internal components. , extend the use time of the water purifier.
  4. Corrosion resistance and wear resistance: The rubber seal inside the water purifier needs to choose a rubber material with good corrosion resistance and wear resistance, because the water purifier may be used for a long time in different water quality environments. Having these characteristics allows rubber seals to maintain stable performance and have a long service life when in contact with water and chemicals in water for a long time.

Common seal types

  • O-ring: Rubber O-ring is the most commonly used seal type in water purifiers because although its structural design is extremely simple, it can also provide reliable sealing performance and is widely used in the connection ports of water purifiers. , filter element seat, filter element shell and other parts.

  • Thread seal: Thread seal is usually used for the filter element connection port of a water purifier, and the thread structure achieves tight sealing of the connection.
  • Diaphragm seal: Diaphragm seal is often used in parts such as drain valves and regulating valves of water purifiers. The sealing effect is achieved through the elasticity of the diaphragm.

Material selection of seals

The material selection of the seal plays a decisive role in the performance and safety of the water purifier. Common rubber seal materials include:

  • Rubber: Such as nitrile rubber (NBR), chloroprene rubber (CR) and silicone rubber (VMQ). These materials have good sealing performance, corrosion resistance and high temperature resistance, and are suitable for various water quality environments.
  • Polymers: such as polytetrafluoroethylene (PTFE), etc. These materials have excellent chemical stability and corrosion resistance and are suitable for some special environments and high-demand water purifiers.
Maintenance of seals

In order for your water purifier to operate normally and be used for a long time, reasonable maintenance measures are required for the seals:

  • Regular inspection: Regularly check the condition of the seal. If there is damage, aging or deformation, it needs to be replaced in time.
  • Cleaning and maintenance: The seal needs to be kept clean to avoid the growth of sediment, dirt, and bacteria. It can be gently washed or wiped with warm water.
  • Avoid over-tightening: When installing and removing the water purifier, avoid over-tightening, which may cause damage or deformation of the seal.