Multi Grade Water Filter manufacturer in india
Improve the quality and clarity of your water with our Multi Grade Water Filter (MGF) — an advanced filtration system engineered to remove suspended solids, turbidity, and visible impurities from raw water. Designed for homes, apartments, industries, and institutions, it ensures consistent clean water suitable for drinking, process, and utility use. Greenly Water savers, we manufacture and suppliers of high-efficiency FRP, MS, and SS multi grade filters available in automatic and manual configurations for diverse applications
What is a Multi Grade Water Filter?
A Multi Grade Water Filter is a pressure filter that uses multiple layers of graded media such as gravel, coarse sand, fine sand, and anthracite to remove turbidity and suspended solids from water. Unlike conventional single-media filters, a multi-grade filter achieves depth filtration, meaning particles are trapped throughout the bed depth rather than just on the surface. Each filter is housed in a robust FRP, MS, or SS vessel, ensuring durability and corrosion resistance. The system acts as an essential pre-treatment unit for RO, softener, or UV systems, enhancing their efficiency and lifespan
How Does industrial multi grade water filter Work?
Raw Water Entry
Water enters the top of the vessel and is distributed evenly across the media bed.
Filtration Process
As water passes downward through multiple graded layers, suspended impurities and turbidity are trapped within the bed.
Collection & Outlet
Filtered water is collected through the bottom under-drain system and sent for use or further treatment.
Backwash Cycle
Periodic reverse flow cleans and restores the media for long-term performance.
This process ensures uniform filtration, minimal clogging, and efficient removal of particles up to 20–50 microns.
Types / Variants of Multi Grade Water Filters
Fixed Bed Multi Grade Filter (MS / FRP / SS Vessel)
Built in durable FRP, Mild Steel, or Stainless Steel, these fixed-bed filters provide reliable operation across domestic, commercial, and industrial sectors. They offer consistent flow, long service life, and minimal maintenance.
Automatic Multi Grade Filter
Ideal for large-scale industrial applications, this model comes with automatic backwash controls, motorized valves, or PLC integration for hassle-free operation. Perfect for facilities requiring round-the-clock water treatment.
Manual Multi Grade Filter
A simple, cost-effective solution for smaller setups. Backwashing and rinsing are done through manual valves, making it suitable for domestic and low-load commercial systems.
Media Options
Standard configurations use sand and anthracite, while high-capacity versions can include graded gravel, pebbles, or specialty filter media to enhance performance and reduce clogging.
Applications of multi grade water filter
RO plant pre-treatment and polishing
Industrial process water treatment
Borewell and surface water filtration
Cooling tower make-up water
Food & beverage, textile, and chemical industries
Hospitals, hotels, and educational institutions
Residential complexes and commercial buildings
Features and Benefits of multi grade filtration system
Multi-layer media filtration (gravel, sand, anthracite)
uniform flow distribution system
Manual or automatic backwash operation
Easy installation and maintenance
Reduces water color and odor
Energy-efficient and cost-effective operation
Long media life with minimal maintenance requirements
Removes turbidity, suspended solids, and organic impurities
Improves downstream RO and softener efficiency
Extends lifespan of connected equipment
How to Choose the Right Multi Grade Water Filter
1
Know your water source – test for turbidity, TDS, and suspended solids.
2
Select the right capacity – match your required flow rate (LPH or m³/hr).
2
3
Pick vessel type – FRP for light duty, MS for industrial use, SS for hygienic or food-grade water.
4
Choose operation type – automatic for continuous plants, manual for small systems.
4
5
Define purpose – pre-treatment for RO, cooling towers, or process water.
Maintenance Guidelines
Backwash the filter every 2–3 days depending on turbidity.
Inspect inlet and outlet valves for leakage or blockages.
Replace filter media every 12–18 months for optimum efficiency.
Ensure pressure gauges and drain lines are functional
Keep the vessel exterior clean and check for corrosion if MS type
Why Choose Greenly Water saver?
Choosing Greenly Water savers means choosing quality, performance, and trust. We combine advanced engineering, durable materials, and expert service to deliver the most reliable multi grade water filters in India.
Expertise & Experience: Over a decade of experience in water treatment system design and installation for domestic, commercial, and industrial applications.
Quality Construction: Every filter is built using high-grade FRP, MS, or SS vessels and precision-layered media to ensure long-term durability and consistent performance.
Custom Solutions: We tailor each system based on your flow rate, water analysis, and process requirement—available in both automatic and manual multi grade filter configurations.
End-to-End Support: From design and supply to installation, commissioning, and AMC, we provide complete service coverage across India.
Proven Track Record: Trusted by leading industries, institutions, and residential complexes for dependable, high-efficiency multi grade water filtration systems.
Frequently Asked Questions
1. What is the difference between a sand filter and a multi grade filter?
A sand filter uses only one type of media, usually fine sand, whereas a multi grade water filter uses several graded layers—gravel, coarse sand, fine sand, and anthracite. This multi-layer design ensures deeper filtration and higher dirt-holding capacity.
2. What are the main types of Multi Grade Water Filters?
There are four major types:
• Fixed bed multi grade filter (FRP/MS/SS vessel)
• Automatic multi grade filter with auto backwash
• Manual multi grade filter with hand valves
• Custom-capacity models for home, commercial, and industrial applications
3. Which is better: automatic or manual multi grade filter?
An automatic multi grade filter is ideal for continuous industrial use—it backwashes automatically with timers or PLCs.
A manual multi grade filter suits small-scale setups where backwashing can be done manually to save cost.
4. How often should a Multi Grade Water Filter be backwashed?
Backwashing frequency depends on feed water quality and turbidity levels. Typically, every 2–3 days is recommended to maintain optimal flow and filtration performance.
5. Can a Multi Grade Filter remove iron or hardness from water?
No. A multi grade water filter removes only physical impurities like suspended solids and turbidity. To remove iron, hardness, or chemicals, you’ll need additional systems such as iron removal filters or softeners.
6. What is the lifespan of filter media in a Multi Grade Filter?
Typically, the filter media lasts 12–18 months, depending on water quality, flow rate, and maintenance frequency. Regular backwashing helps extend the media’s life.
7. Is a Multi Grade Filter suitable for borewell water?
Yes. It’s highly effective for borewell, river, or surface water where turbidity and sediment are common. The system ensures cleaner, clearer water for domestic or industrial use
8. Does a Multi Grade Water Filter require electricity?
Only automatic models need electricity for valve operation or PLC control.
Manual models operate without power, using hand-operated valves.
9. Can Multi Grade Filters be used before an RO Plant?
Yes. They are the most common pre-treatment filter before RO systems. They remove turbidity and suspended matter, preventing membrane fouling and extending RO life.
10. How to differentiate between SS and MS Multi Grade Filters?
• SS Multi Grade Filter: High corrosion resistance, suitable for hygienic and pharmaceutical applications.
• MS Multi Grade Filter: Economical, strong, and ideal for industrial utility water.
11. Can a Multi Grade Filter be customized?
Yes. Greenly Water savers designs and supplies custom multi grade filters based on flow rate, vessel type (FRP/MS/SS), and automation requirements.
12. What is the typical pressure range for operation?
Most filters operate between 2.5–5.0 kg/cm² depending on flow rate and pipeline configuration.
13. Is a Multi Grade Filter suitable for drinking water applications?
Yes — it’s effective as a pre-treatment stage in drinking water purification, ensuring clear, sediment-free water before UV or RO purification.