1. Expansion phenomenon of sealing ring in infiltration equipment
In water treatment equipment, reverse osmosis equipment requires three types of sealing gaskets in the membrane shell to achieve sealing and isolation in each section of the membrane shell. In order to reduce installation resistance, water or glycerin should be applied to the surface of each sealing ring during system installation.

Special attention should be paid to using Vaseline or other petroleum based lubricants with caution, otherwise it will cause cracking of the freshwater pipe, especially the expansion of the sealing gasket. The expansion of rubber rings generally does not directly affect the operation of the system, but it can affect the system's ability to be unloaded and reloaded, making it difficult for the expanded rubber rings to enter the slot during loading. 
2. Basic requirements for effluent quality of purified water equipment
The purified water produced by purified water equipment is used in industries such as medicine and biomedicine. But what are the basic standards for purified water quality? Both the Chinese Pharmacopoeia and the European Pharmacopoeia explicitly state that the raw water used for pharmaceutical purposes must meet at least the standards of drinking water. If it does not meet the standard, it will undergo evolutionary processing until it meets the standard.

Except for Escherichia coli, which has clear regulations, other bacteria are not allowed to exceed 100/ml. During the water production process of purified water equipment, there may also be internal pollution, and various water treatment devices in purified water equipment may become sources of pollution. So it is necessary to regularly clean and disinfect the purified water equipment. In addition, a sterilization and disinfection device should be installed at the end of the purified water equipment.

3. Characteristics of effluent quality from purified water equipment
The effluent quality produced by the purified water equipment meets the national hygiene standards and the actual production standards of the enterprise. The effluent of purified water equipment - purified water has two characteristics. One characteristic is that the installation of disinfection and sterilization equipment for purified water is gradually increasing.

Another feature is that the pipeline distribution system of the purified water equipment replaces the traditional water supply pipeline with a circulation pipeline, both of which are aimed at controlling microbial contamination and the increase of bacterial endotoxins. At the same time, attention should be paid to the impact of flow velocity inside the pipeline on microbial growth. If the flow velocity inside the pipeline is too low or blocked, it may cause an increase in microbial growth and affect water quality.

4. Key points for selecting the installation location of softened water equipment

The effluent quality of the softened water equipment is good, and the system operates stably, which is used by many enterprises. When installing softened water equipment, the following points should be noted: 

1) Softening water equipment should be located as close as possible to the drainage area.

2) If other water treatment equipment is needed, installation positions should be reserved.

3) Due to the frequent addition of salt to the salt tank, a location for placing salt should be set up.

4) Do not install the softened water equipment within 3 meters of the boiler, otherwise hot water will flow back into the softened water equipment and cause damage.

5) Place the softened water equipment in an environment with room temperature below 1 ° C and above 49 ° C.

5. Precautions for using softened water equipment
Softening water equipment is a water treatment device that removes Ca and Mg ions from water, reduces the hardness of water, and softens the water. After prolonged use, certain precautions should be followed when using softened water equipment. 

1) The inlet of the softened water equipment should be kept open for a long time during use, unless it needs to be closed during equipment maintenance. If no water is needed, the outlet valve can be closed.

2) If the effluent is not qualified due to incomplete regeneration of the softened water equipment, it can be manually regenerated.

3) When the softened water equipment is not in use for a long time, salt water needs to be sucked into the tank for protection.

4) When put back into use, simply prepare salt water that works normally, open the inlet valve first, then connect the power supply, let the equipment reset by itself, and manually regenerate it again. After that, you can open the outlet valve.

5) If the industrial salt used is too dirty, the salt bucket should be cleaned once a year to ensure the smooth process of salt absorption.

6. Installation standards for ultrapure water equipment

The effluent quality of ultrapure water equipment is good, suitable for the production needs of various enterprises, and the scope of use is gradually expanding. This article mainly introduces the standard instructions for the installation of ultrapure water equipment.

1) The equipment installation site should be selected in a flat, clean environment, close to the power and water sources.

2) Do not approach fire sources or any heating elements to avoid being affected by heat and affecting their operational efficiency.

3) Equipment should not be installed outdoors in northern regions to prevent internal freezing and damage to instruments and filter elements.

4) The installation location of the equipment should be convenient for drainage, ensuring that the drainage pipes of the equipment remain smooth.