SIRCAL filter Germany SIRCAL model SIRCAL price

The SIRCAL filter consists of a housing, multiple filter elements, a backwash mechanism, and a differential pressure controller. A partition plate inside the stainless steel filter housing divides the interior into upper and lower chambers. The upper chamber is equipped with multiple filter cores, making full use of the filtration space and significantly reducing the filter volume. The lower chamber is installed with a backwash suction cup. During operation, water to be filtered enters through the inlet, flows through the filter screen, and exits into the pipeline required by the user for process circulation. Particulate impurities in the water are retained inside the filter screen. With continuous circulation, the number of retained particles increases, and the filtration speed slows down. Meanwhile, contaminated water continues to enter from the inlet, causing the filter pores to become smaller. This creates a pressure difference between the inlet and outlet. When the differential pressure reaches the set value, the differential pressure transmitter sends an electrical signal to the controller. The controller activates the drive motor, which rotates the shaft via the transmission assembly. Simultaneously, the discharge port opens to expel contaminants. After the filter screen is cleaned, the pressure drop decreases to the minimum value, and the system returns to the initial filtration state for normal operation.

SIRCAL filter working principle

The specially designed filter screen creates a jet effect inside the filter element, flushing any impurities away from the smooth inner wall. The entire process maintains continuous material flow with low backwash water consumption, achieving continuous and automated production. When the differential pressure between the filter inlet and outlet returns to normal or the timer setting expires, the cycle completes. Due to low production concentration in the industry, limited R&D capabilities for supporting high-end products, and low manufacturing technology levels in the stainless steel filter industry, the import-export trade deficit continues to expand. The coming years will be a period of rapid turbulence for the stainless steel filter industry. The direct consequence of this rapid turbulence is an expanding trend of polarization among brand camps. It is expected that the number of companies truly able to survive in the market in the coming years will be significantly lower. However, this rapid turbulence in the stainless steel filter industry will bring huge opportunities, and the result will make market operations more rational.

SIRCAL filter design features

The stainless steel filter achieves automatic backwashing through its own detection and response functions, coping with unstable water quality fluctuations without manual intervention. The stainless steel filter has few wearing parts, no consumables, low operation and maintenance costs, and simple operation and management. The stainless steel filter operates precisely and can flexibly adjust the backwash differential pressure time and time settings according to different water sources and filtration precision. During the backwashing process of the stainless steel filter, each (group) of filter screens performs backwashing sequentially; this ensures safe and efficient cleaning of the filter screen while other filter screens remain unaffected and continue filtering. The stainless steel filter uses a pneumatic discharge valve, resulting in short backwash duration and low backwash water consumption, making it environmentally friendly and economical. The stainless steel filter features a compact and reasonable structural design, small footprint, and flexible and convenient installation and movement.

SIRCAL filter filtration speed

When the solid particles in the suspension are large and uniform in size, the pores in the filter cake layer are relatively open, and the filtrate passes through the filter cake layer at a higher speed. Applying coagulants to aggregate fine particles into larger clusters helps improve filtration speed. For suspensions where solid particles settle quickly, filters that feed material onto the upper part of the filter medium are used, aligning the filtration direction with gravity. Coarse particles settle first, reducing clogging of the filter medium and filter cake layer. Mixing coarser solid particles such as diatomaceous earth and expanded perlite into difficult-to-filter suspensions (such as colloids) can loosen the filter cake layer. When the filtrate viscosity is high, heating the suspension can reduce viscosity. These measures can all accelerate filtration speed. Long service life: The new plastic filter elements are robust, wear-resistant, corrosion-resistant, and rarely scale. Verified by years of industrial practical use, they show no wear after 6~15 years of use, do not age, and their filtration and backwash performance does not deteriorate with usage time. High quality, low maintenance: The products comply with corresponding quality standards. All products undergo simulated operating condition testing and trial runs before leaving the factory. No special tools are required, and there are few spare parts. They are easy to use, requiring only regular inspections and almost no daily maintenance.

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