Three-tank parallel shallow sand filter

Product introduction

The three-tank parallel shallow sand filter is composed of multiple standard high-speed sand tank units. It is equipped with a water distributor and a water collector, and has a two-way automatic flush valve, which can realize multiple standard high-speed sand tanks in normal system operation. Individual backwashing one by one, fully automatic program control. The fully automatic shallow medium filter has the advantages of small backwash water consumption, convenient equipment installation and easy operation. The device has a high flow rate and requires no maintenance.

Product principle

When the shallow medium filter system is in the filtering state, the pressurized water flows into the water distribution system from the inlet of the filter tank and reaches the filter material layer evenly. When the water flows through the filter material layer, the suspended matter is retained by the filter material. There is a water collector with a slit at the bottom of the filter, and the filtered clean water is evenly collected and flows out of the filter.

At any time, impurities accumulate in the filter material layer, and the pressure loss continues to increase. When the pressure difference increases to a certain set value or reaches the set cleaning, the system will automatically switch to the backwashing state. The pressurized water enters the filter material layer through the water collection device, flushes it, and makes the trapped pollutants fall off and discharge the filter system. After the backwash has lasted for at least 2 minutes, the valve automatically switches the system to filter state.

Features

1. High filtration speed and low pressure loss, to solve the problems of slow filtration speed and small flow of ordinary mechanical media filters.

2. Modular setting, small footprint, less piping, and low investment. The floor space is reduced by more than 40%, and the amount of piping works is reduced by more than 50%.

3. Manual, semi-automatic and fully automatic backwashing options are available to meet your needs.

4. The backwash water source can be selected from the system, water tower or external water source, and can be automatically switched.

5. The shell and pipes are made of carbon steel Q235B, treated with phosphate, and baked at high temperature after electrostatic spraying. They are corrosion-resistant and can also be made of stainless steel.

Product Details