Multi Grade Filter :-

Multi-grade filter is a depth filter that makes use of coarse and fine media mixed together in a fixed proportion. This arrangement produces a filter bed with adequate pore dimensions for retaining both large and small suspended particles.A latest concept in the water treatment technology, a Multi Grade Filter consists of vertical pressure sand filters that contain multiple layers of Pebbles, Silex, coarse, Rough and fine sand in a fixed proportion. It is a kind of a deep filter bed with adequate pore dimensions for retaining both large and small suspended solids and un-dissolved impurities like dust particles. As compared to conventional sand water filter, this Multi-grade filtration system works on higher specific flow rates. It is also a low cost pre-treatment system for ion exchangers (deionizer and softener) and membrane systems such as reverse osmosis etc. With high throughputs, high dirt-holding capacity and capacity to reduce turbidity and TSS (< 5ppm) from water, it protects ion-exchange resins and membranes from physical fouling due to suspended impurities present in the water.

Working Principle :-

The working principle of a multi-grade filter is quite straight forward. In a Multi-grade filter or pressure sand filter, water is passed through multi layers of filter media consisting graded sand, pebbles and gravels layers. The contaminants in the water are captured in the media bed and filtered water passes into the discharge manifold at the bottom of the tanks. The next and last step is backwashing, a process of effectively removal of captured contaminants from the media bed. After back-washing the filter is rinsed with raw water and after the required quality of water is achieved the filter is put back into service.

Multi-grade Sand Filters by HitechEnviroSolutions :-

Our company is a Manufacturer and Supplier of Multi-grade filter in India and provides engineering services from designing, Supplying to installation and commissioning. Our Multi-grade sand filtration plants are designed to meet specific requirements of our customers; no matter what quality of water you use and what your flow rate requirements are, our engineering team is capable of configuring the same accordingly. From 100 LPH to 50,000 LPH, we can supply and Install any capacity you need.


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