office@vasupharmatech.com
+91 81096 09900
+91 81096 09900
Contact Us
+91 81096 09900
+91 81096 09900
DISC TYPE
80mm to 150mm
EPDM / SILICONE
1 kg/cm2 - 1.5kg/cm2
1-10 m3/hr
60° C
In wastewater treatment plants (STPs and ETPs), aeration is one of the most critical processes. If your system doesn’t get enough oxygen, you’ll face problems like bad smells, poor treatment performance, high energy bills, and increased maintenance. That’s why choosing the right aeration system is so important—and that’s where a diffuser coarse bubble can make a big difference.
At Vasu Pharmatech, we manufacture durable, easy-to-maintain coarse bubble diffusers designed specifically for Indian wastewater conditions. Our systems help reduce downtime, increase efficiency, and save operational costs.
A diffuser coarse bubble is a type of aeration equipment used in sewage and effluent treatment tanks. It releases large air bubbles (typically 4–6 mm in size) into the water. These bubbles rise quickly, stirring the water strongly and improving oxygen mixing.
Unlike fine bubble diffusers, which focus on maximum oxygen transfer, coarse air bubble diffusers are better at handling sludge, oil, and high-solid content. That makes them ideal for rough and dirty treatment environments where clogging is a major risk.
Many treatment plants suffer from the same problems: clogged diffusers, uneven oxygen distribution, or systems that cost too much to run. A coarse bubble diffuser helps solve these problems with a simple but effective design.
Coarse bubbles pass through bigger holes. That means they’re much less likely to clog with solid waste or grease. You don’t need to clean them often, which saves on time and labor.
The large bubbles don’t just add oxygen—they also mix the tank. This helps keep solids in suspension and prevents sludge buildup at the bottom of the tank.
Because they’re low-maintenance and don’t require frequent cleaning, coarse bubble diffusers wastewater systems often last longer than fine bubble ones—especially in tough environments.
In areas like equalization tanks, sludge digesters, or industrial ETPs, fine bubble systems often fail. That’s where coarse air bubble diffusers do their best work.
Even though fine bubble systems might look more efficient on paper, diffuser coarse bubble systems often deliver better ROI in harsh wastewater conditions. You spend less on maintenance, spare parts, and downtime.
| Specification | Details |
|---|---|
| Shape | Disc & Tube Type |
| Diameter Size | 80mm to 150mm |
| Membrane Material (MOC) | EPDM / Silicone |
| Max. Pressure Allowed | 1 to 1.5 kg/cm² |
| Air Flow Range | 1–10 m³/hr |
| Max. Operating Temp | Up to 60°C |
These features ensure our diffuser coarse bubble units can handle various flow rates and conditions without compromising on performance.
Our coarse bubble diffuser systems are commonly used in:
Equalization Tanks
Sludge Holding Tanks
Grit Chambers
Industrial ETPs with high oil or chemical content
Pre-aeration zones before fine bubble diffusers
Aeration zones with heavy solids or high organic load
They are especially useful in treatment plants dealing with high solid loads or aggressive wastewater.
Every STP or ETP is different. That’s why we don’t believe in one-size-fits-all. We help you choose and design the best coarse air bubble diffuser setup for your plant.
Here’s what we offer:
Help with layout planning and diffuser positioning
Blower sizing and airflow recommendations
Training for installation and upkeep
Fast local delivery and spare parts availability
Ongoing support as your plant evolves
As trusted coarse bubble diffuser manufacturers, we ensure our clients get more than just a product—we deliver results that improve performance and lower costs.
Before placing an order, make sure you know:
The type of wastewater you’re treating (domestic, industrial, or mixed)
The shape and size of your aeration tank
Your daily flow rate and air pressure availability
Your blower type and system layout
These details help in selecting the correct coarse bubble diffuser wastewater setup so you don’t overspend or underperform.
Here are a few examples of issues you can fix by switching to diffuser coarse bubble systems:
1. High Energy Bills
2. Bad Odors from Tanks
3. Frequent Cleaning
4. Sludge Buildup at Tank Bottom
5. Uneven Aeration Coverage
At Vasu Pharmatech, installation support is part of our standard process. We work with you on:
Layout design and optimization
Matching the right blower to your diffuser setup
Hands-on training for your team
Spare part supply and emergency support
Our coarse bubble diffuser wastewater systems are designed to work with Indian blower systems, pipe sizes, and treatment norms. This compatibility ensures a smoother setup and quicker results.
Let’s look at a few real problems many STP operators face:
Problem: High Power Consumption
Cause: Oversized blower or poor air distribution
Solution: Use correctly sized coarse bubble diffuser to reduce head loss and improve distribution.
Problem: Bad Smells from STP
Cause: Anaerobic zones due to poor mixing
Solution: Large bubbles from coarse diffusers reoxygenate entire tank.
Problem: Sludge Accumulation
Cause: Weak flow, especially at corners and bottom
Solution: Coarse bubbles stir the entire tank, keeping solids suspended.
Problem: Diffuser Clogging
Cause: FOG (fat, oil, grease) and debris
Solution: Coarse bubble diffusers have larger openings, so they don’t clog easily.
Problem: High Maintenance Needs
Cause: Fine pores and low-quality membranes
Solution: Use EPDM or silicone coarse bubble diffuser membranes with wide slits.
You have many Diffuser Coarse Bubble manufacturers to choose from, but here’s why Vasu stands out:
We’re experts in Indian aeration systems with real-world project experience.
We offer tailored diffuser designs, not generic off-the-shelf units.
We manufacture locally – fast delivery, better quality, and cost control.
We support clients from design through post-installation – not just till delivery.
We offer full transparency in specs, pricing, and performance expectations.
You get reliability, clarity, and products that perform in the field.
For treatment plants dealing with tough wastewater, high solids, or changing loads, a diffuser coarse bubble system offers the simplicity, strength, and long-term value you need. Unlike fine bubble diffusers that require frequent cleaning and careful monitoring, coarse bubble diffusers are made for harsh conditions and minimal fuss.
At Vasu Pharmatech, we build and supply high-quality coarse bubble diffuser wastewater systems that deliver dependable aeration, solid mixing, and long service life. As experienced coarse bubble diffuser manufacturers, we understand Indian plant conditions and provide tailored solutions that work.
Whether you’re retrofitting an old tank or setting up a new STP or ETP, our coarse air bubble diffuser systems are a reliable choice for long-term performance and peace of mind.
With every unit we design, our goal remains the same: better oxygen transfer, fewer maintenance issues, and improved treatment results. We don’t just manufacture—we partner with our clients to make their systems work smarter.
Let Vasu Pharmatech help you get the most from your aeration system—with quality, expertise, and the right diffuser for the job.
A diffuser coarse bubble is an aeration device that releases large air bubbles (typically 4–6 mm) into wastewater. These bubbles mix the water and add oxygen, which supports the biological treatment process in STPs and ETPs. Unlike fine bubble systems, they are less likely to clog and are better for handling sludge and grease.
Use coarse bubble diffusers in high-solid or oily wastewater, sludge tanks, and grit chambers. They’re ideal when clogging is a problem or where aggressive mixing is needed. Fine bubble diffusers are better for clean tanks focused on maximizing oxygen transfer.
Yes, coarse bubble diffusers wastewater systems are excellent for industrial applications. They can handle chemical loads, high solid content, and fluctuating conditions without clogging—making them a reliable solution for tough environments.
Vasu Pharmatech designs and manufactures coarse air bubble diffuser systems tailored for Indian treatment plants. With local production, strong technical support, and proven performance, we stand out among coarse bubble diffuser manufacturers.
To choose the right diffuser coarse bubble, consider the size of your aeration tank, type of wastewater, flow rate, and air pressure. Our team at Vasu Pharmatech helps with sizing, layout, and even blower matching to ensure your system works efficiently.
We certify that M/s. Vasu Pharmatech, located at 66B, Pocket AD Shalimar Bagh, Delhi-110088, supplied us with a Pharmatech filter press for our 275 KLD ETP plant at M/s. Asian Colour Coated Ispat Ltd. in Bawal, Dist: Rewari (Hr.). The plant was started in January 2018 and is still working well. The product and its performance have been satisfactory up to now.
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