What is the pressure tank of the RO water purifier? Working principle, structure of pressure tank of RO water purifier

The pressure tank of the water purifier is an indispensable part of the RO water purifier. However, what is a water purifier pressure tank, many people still wonder. Join lassho.edu.vn to learn about the pressure tank of the RO water purifier as well as the operating principle and structure of this part!

What is the pressure tank of the RO water purifier? What to do?

The water purifier pressure tank is a very important part of the RO water purifier. This unit is usually cylindrical, painted white or blue with a capacity ranging from 10 to 15 liters . Normally, water purifier pressure vessels are made from high-quality plastic or metal, which do not contain toxic substances to ensure safety for users.

The function of a pressure vessel is to store water and maintain water pressure. Filtered water flows directly from the RO membrane through the pressure tank for storage, if this part has a problem, the water from the purifier will flow weakly or there is no water.

Structure and working principle of RO water purifier

Structure

Basically, the water purifier pressure tank is an empty tank and inside there is a rubber ball containing gas. Above the rubber ball is a water ball made of butyl. There is a hole in the top of the tank that allows water to flow in and out of the tank. The normal body will have a blue pin, this is the gas valve, where the gas will be pumped into the tank when needed.

Working principle

About the principle of operation of the RO water purifier, water passes through the filter and will be put into the pressure tank. When empty, the pressure of the pressure vessel is about 5 to 10 psi . The pressure in the pressure vessel will increase as water is introduced into the tank. When the pressure in the tank reaches 2/3 of the pressure of the tap water flow, the hydraulic shut-off valve of the RO filter system will operate to stop the water from entering.

When you open the faucet, the water in the pressure tank will be pushed out thanks to the air pressure, and the filter system continues to bring water into the pressure tank to compensate for the pressure loss from the water you take. Just like that, the pressure tank will adjust the pressure of the system and coordinate the water in and out.

Advantages and disadvantages of RO water purifier pressure tank

Advantage:

• Make sure the outlet water pressure is controlled and stable.
• Make sure the machine can operate most flexibly and stop at the right time.

Defect:

• Bulky, space-consuming because the amount of water contained in the tank only accounts for about 60-70% of the tank’s capacity.
• Interrupt the operation of the machine when the tank has a problem.

How to pump pressure tank RO water purifier

Step 1: First, you lock the water inlet and turn off the power .

Step 2: Next, you lock the pressure tank valve , then unplug the water supply line from the pressure tank and bring the pressure tank out .

Step 3: Unlock the pressure tank valve to let the water flow until the water stops flowing, then check the pressure tank:

• If the water runs out, it means the pressure tank is working properly.
• If there is still a lot of water in the tank, pump the pressure tank until the water runs out. Then you install the water filter and check again. If the water still does not drain, the pressure vessel has leaked or punctured, now you need to replace the new pressure vessel to use.

Step 4: Insert the pressure tank back into the water purifier.

Some notes when using RO water purifier pressure tank

– Check the air balloon inside the pressure tank after about 18-24 months of use because when used for a while, the air balloon will gradually deflate, causing the water to flow out of the faucet slowly.

– Pump air into the pressure tank when the tank weighs less than 20kg . To pump air in, you take the bicycle pump and pump it into the air valve of the pressure tank.

– Pump a small amount from 2 to 3 times , avoid pumping too much, too tight to explode the ball.

Above is information about the pressure tank of the RO water purifier, the principle of operation and the structure of the pressure tank of the RO water purifier. Hope this information helps you!