MGF & PSF Filter

What is a Multigrade Sand Filter?

A Multigrade Sand Filter, often called an MGF, is a filter vessel layered with multiple grades of sand and gravel arranged to remove suspended particles of different sizes. The term "multigrade" refers to this layered structure, where coarser sand and gravel sit at the top and finer layers sit below, each trapping progressively smaller particles as water flows through.

This filter typically works as the first stage in a water treatment setup, removing bulk sediment before water moves on to finer treatment stages like activated carbon filtration, softening, or reverse osmosis.

Why Multigrade Sand Filtration Matters?

Raw water from borewells, wells, or surface sources often carries visible sediment, silt, or rust particles that can affect water clarity and put extra load on downstream filtration equipment.

By handling this initial filtration load, the multigrade sand filter protects your entire water treatment system and keeps it running efficiently for longer.

Our Experience Supplying Multigrade Sand Filters

Sawen Group has supplied water treatment equipment across residential, commercial, and industrial segments in India for years. Our multigrade sand filters have been used in borewell water treatment setups, as pre-filtration units before RO plants, and in industrial process water systems where consistent water clarity matters.

This practical, on-ground exposure has helped us understand how filter sizing needs to change based on water source, turbidity levels, and daily usage volume.

Key Features of Sawen's Multigrade Sand Filter

Technical Overview - How Multigrade Sand Filtration Works?

The filter works through a straightforward layered filtration process. As water passes through the vessel, it moves from coarser sand and gravel layers at the top to finer layers below, with each layer trapping progressively smaller particles.

Over time, trapped sediment builds up within the media layers, which is why periodic backwashing, reversing the water flow to flush out accumulated particles, is essential to maintain the filter's efficiency.

Components Included in a Multigrade Sand Filter System

• Filter vessel (FRP or MS body, depending on application)
• Layered filter media (sand and gravel grades)
• Multiport valve or manual valve system for backwashing
• Inlet/outlet piping connections
• Installation and maintenance guide

How to Install and Maintain Your Multigrade Sand Filter?

1. Select the correct filter size based on your water source and daily flow requirement
2. Install the filter at the beginning of your water treatment line, before finer filtration stages
3. Run an initial backwash to settle the media bed before regular use
4. Begin normal filtration and monitor water clarity at the outlet
5. Backwash periodically as per your usage schedule to maintain consistent performance

Benefits of Using Sawen's Multigrade Sand Filter

• Removes turbidity and visible sediment effectively
• Protects downstream equipment
• Reduces maintenance on finer systems
• Works well for both drinking water and industrial process water
• Reusable media

Reliability and Quality Assurance

Sawen Group brings years of experience supplying water treatment equipment across India, aligning with standard multigrade filtration practices used in residential, commercial, and industrial water systems. Our filters are built to handle a range of raw water conditions effectively.

It's worth noting that filter performance depends on your water's turbidity levels and how regularly backwashing is carried out. Following a consistent maintenance schedule helps the filter continue performing at its best over time.

Who Should Use a Multigrade Sand Filter?

This filter is a good fit for:

• Households and societies using borewell or surface water
• RO plant owners and installers needing pre-filtration
• Industries requiring process water treatment
• Hotels, hospitals, and institutions with high water usage
• Water treatment plants and community water projects

Multigrade Sand Filter vs Other Filtration Methods

If you're unsure how a multigrade sand filter fits with other filtration options, here's a simple comparison:

Most complete water treatment systems use a multigrade sand filter as the very first stage, followed by carbon filtration, RO, or UV treatment depending on the water source and end use.

How to Buy a Multigrade Sand Filter?

Ordering your filter is simple:

1. Choose your filter size: Select based on your water source and flow rate requirement
2. Place your order: Confirm quantity for individual or bulk purchase
3. Receive your filter: Get it delivered along with installation guidance

You can also reach us directly through:

• Phone: +91 7379444475
• Email: consultancy.sawens@gmail.com
• Office: 417 A&B, 409 A, 4th Floor, Sahara Shopping Centre, Faizabad Road, Lucknow – 226016 (U.P.)

Why Choose Sawen Group for Multigrade Sand Filter?

Sawen Group brings years of practical experience supplying water treatment equipment across households, RO systems, and industrial setups in India. Our Multigrade Sand Filters offer a reliable, low-maintenance way to improve water clarity right from the first treatment stage, backed by guidance to help you choose the right size for your needs.

Order your Multigrade Sand Filter today - contact Sawen Group for pricing and sizing guidance.