01Sewage Treatment Plants
Aeration · MBBR · SBR · MBR
Blowers feed air through diffusers to keep the biology alive in aeration tanks, and supply air for equalisation tanks, sludge holding and membrane scouring.
Wastewater Solutions →
Alpha BlowersSupplied & supported by Wateria Technovation
PRESSURE BLOWERS | VACUUM EXHAUSTERS | ACOUSTIC ENCLOSURES
Twin-Lobe Air Blowers
Reliable Air for Aeration & Process
Compact, energy-efficient Roots blowers that run quietly and are easy to service on site. Wateria Technovation selects, supplies, installs and maintains Alpha twin-lobe blowers and exhausters for sewage and effluent treatment, biogas, pneumatic conveying, fish farming and breweries across India and the UAE.
Air Demand Study · Blower Sizing · Supply · Installation · Commissioning · AMC
OIL-FREE AIR, STEADY FLOW, LOW NOISE
- Twin-Lobe RootsPositive displacement design
- 20 – 2,300 m³/hAir flow range
- Up to 1,000 mbarPressure blowers
- Down to –500 mbarVacuum exhausters
- 7 – 15 dB(A)Enclosure noise reduction
AIR BLOWER RANGE
Pressure, Vacuum and Silent Packages
Every Alpha blower is a robust 2-lobe Roots machine, supplied as a ready package with its accessories. Choose a compact box-type unit for small plants, a standard blower for larger aeration and conveying duties, an exhauster for vacuum, and an acoustic enclosure where noise matters.
DOPTION 1 · COMPACT D-SERIES
Compact Box-Type Blowers (ALF 1.5D – 8D)
Small, direct-coupled blowers built on a box-type structure. They take up very little floor space and are ideal for package STPs, small ETPs, aquaculture ponds and buildings where only a modest amount of air is needed.
- 20 – 125 m³/hFlow range
- 100 – 500 mbarPressure
- 5 models1.5D, 2D, 3D, 6D, 8D
- Smallest footprint in the range
- Box-type accessory structure
- Visual operation indicators
- Low noise operation
- Easy on-site servicing
- Ready-to-install package
Best for: package sewage treatment plants, villas and small buildings, fish tanks and ponds, small effluent plants.
POPTION 2 · PRESSURE RANGE
Twin-Lobe Pressure Blowers (ALF 2 – 75)
The main Alpha range for aeration and process air. Each blower comes on a base frame cum silencer as standard, with a box-type structure as an option. The ribbed single-piece casing keeps the blower cool and rigid, and both-side oil chambers with splash lubrication give long, leak-free running.
- 25 – 2,300 m³/hFlow range
- 100 – 1,000 mbarPressure (model dependent)
- 17 modelsALF 2 to ALF 75
- 2-lobe rotor design
- Ribbed single-piece casing
- Splash lubrication, both sides
- Piston ring oil & air seals
- Base frame cum silencer
- Optional box-type structure
Best for: STP and ETP aeration, MBBR and SBR plants, biogas handling, pneumatic conveying, filter backwash and industrial process air.
VOPTION 3 · VACUUM RANGE
Twin-Lobe Exhausters (ALF 10 – 55)
The same robust twin-lobe design, set up to pull air instead of push it. Alpha exhausters create steady vacuum for suction conveying, vacuum lifting, de-gassing and dewatering, with the same base frame cum silencer package as the pressure range.
- 150 – 1,800 m³/hFlow range
- –100 to –500 mbarVacuum
- 10 modelsALF 10 to ALF 55
- Steady, pulse-free vacuum
- Same spares as pressure range
- Base frame cum silencer
- Optional box-type structure
- Continuous duty
- Simple belt or direct drive
Best for: vacuum (suction) pneumatic conveying, sludge and liquid suction, vacuum filtration, de-aeration and central vacuum systems.
EOPTION 4 · CUSTOMISED ENCLOSURES
Acoustic Blower Enclosures
Blowers in residential towers, hotels and hospitals need to be quiet. Alpha acoustic enclosures with forced ventilation are designed after a site survey, fit blowers of any brand, and open up easily so routine maintenance stays simple.
- 7 – 15 dB(A)Guaranteed sound reduction
- Any brandNew or existing blowers
- ModularCompact, easy access
- Acoustic enclosure with forced ventilation
- Suits any blower brand
- Site survey for acoustic needs
- Compact & modular design
- Easy maintenance access
- Retrofit for existing plants
Best for: STPs in residential societies, hotels, hospitals, malls and any blower room close to people.
HOW A TWIN-LOBE BLOWER WORKS
Two Lobes, Fixed Air Volume,
Every Turn
Inlet → Lobes trap air → Carried round → Discharge
Two figure-eight lobes turn in opposite directions inside the casing without touching each other. With each turn they trap a fixed pocket of air at the inlet, carry it round the outside of the casing and push it out at the discharge. Because the volume per turn is fixed, the blower delivers steady air flow even as the water depth or line pressure changes. In Alpha blowers air flows from top to bottom, and the blower turns anticlockwise when seen from the pulley end.
See the Model Range →AIR PATH THROUGH THE BLOWER
- 1Inlet Filter & Silencer
- 2Lobes Trap Air
- 3Carried Round Casing
- 4Discharge Silencer & NRV
- ✓Air to Process
ALPHA DESIGN FEATURES
- A2-Lobe Rotors
- BRibbed Casing
Cool & rigid - COil Chambers
Both sides - DSplash Lubrication
- EPiston Ring Seals
Oil & air
DESIGN & CONSTRUCTION
Built to Run Quietly, Serviced in Minutes
INSIDE AN ALPHA BLOWER
Robust 2-Lobe Blower, Supplied with Accessories
The 2-lobe rotors and ribbed design of the single-piece cylinder casting give the best heat dissipation and rigidity. Oil chambers on both sides with oil splash lubrication, plus advanced piston rings for the oil and air seals, keep the blower leak-free. All design and production is done in-house at Alpha's ISO 9001:2015 factory.
- Top → bottomDirection of air flow
- AnticlockwiseViewed from pulley end
- SplashOil lubrication, both sides
- Visual operation indicators
- Saves floor space
- Robust construction
- Less noise
- Effortless servicing
- Energy-efficient operation
Supplied with: base frame cum silencer as standard on the ALF 2 – 75 range, or a box-type structure (standard on the D-series and optional on others).
TECHNICAL DATA
Alpha Blower Model Range
All models are positive displacement twin-lobe blowers. Enter the air flow and pressure you need, and the matching models are highlighted below. Our engineers will confirm the final model, speed and motor after checking your duty point.
| Model | Type | Flow Range (m³/h) | Pressure (mbar) | Accessories Arrangement |
|---|---|---|---|---|
| ALF 1.5D | Positive displacement blower | 20 – 25 | 100 – 400 | Box type structure |
| ALF 2D | Positive displacement blower | 25 – 35 | 100 – 450 | Box type structure |
| ALF 3D | Positive displacement blower | 40 – 55 | 100 – 500 | Box type structure |
| ALF 6D | Positive displacement blower | 70 – 95 | 100 – 500 | Box type structure |
| ALF 8D | Positive displacement blower | 95 – 125 | 100 – 400 | Box type structure |
| Model | Type | Flow Range (m³/h) | Pressure (mbar) | Accessories Arrangement |
|---|---|---|---|---|
| ALF 2 | Positive displacement blower | 25 – 60 | 100 – 500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 3 | Positive displacement blower | 25 – 85 | 100 – 500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 3+ | Positive displacement blower | 25 – 85 | 100 – 700 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 6 | Positive displacement blower | 60 – 150 | 100 – 700 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 8 | Positive displacement blower | 90 – 190 | 100 – 500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 10 | Positive displacement blower | 150 – 260 | 100 – 1,000 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 12 | Positive displacement blower | 160 – 350 | 100 – 1,000 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 15 | Positive displacement blower | 200 – 450 | 100 – 800 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 18 | Positive displacement blower | 240 – 500 | 100 – 800 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 25 | Positive displacement blower | 350 – 750 | 100 – 1,000 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 32 | Positive displacement blower | 500 – 1,000 | 100 – 900 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 3842 | Positive displacement blower | 600 – 1,300 | 100 – 500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 40 | Positive displacement blower | 700 – 1,400 | 100 – 1,000 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 48 | Positive displacement blower | 800 – 1,500 | 100 – 800 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 55 | Positive displacement blower | 900 – 1,800 | 100 – 700 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 65 | Positive displacement blower | 1,000 – 2,100 | 100 – 800 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 75 | Positive displacement blower | 1,100 – 2,300 | 100 – 700 | Standard: Base frame cum silencer Optional: Box type structure |
| Model | Type | Flow Range (m³/h) | Vacuum (mbar) | Accessories Arrangement |
|---|---|---|---|---|
| ALF 10 | Positive displacement blower | 150 – 260 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 12 | Positive displacement blower | 160 – 350 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 15 | Positive displacement blower | 200 – 450 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 18 | Positive displacement blower | 240 – 500 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 25 | Positive displacement blower | 350 – 750 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 32 | Positive displacement blower | 500 – 1,000 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 3842 | Positive displacement blower | 600 – 1,300 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 40 | Positive displacement blower | 700 – 1,400 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 48 | Positive displacement blower | 800 – 1,500 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
| ALF 55 | Positive displacement blower | 900 – 1,800 | –100 to –500 | Standard: Base frame cum silencer Optional: Box type structure |
Technical data as published by Alpha Blowers. Flow and pressure figures are model ranges; the actual flow depends on blower speed, pressure and site conditions. Final selection, motor rating and drive arrangement are confirmed by Wateria after reviewing your duty point.
APPLICATIONS
Where Alpha Air Blowers Work
Alpha designs its blowers for sewage and effluent treatment, biogas, pneumatic conveying, fish farming and breweries. These are the duties we most often size them for.
01
02Effluent Treatment Plants
Industrial wastewater
Air for biological treatment, equalisation mixing, oil and grease separation, DAF and filter air scouring in textile, food, pharma and chemical effluent plants.
Wastewater Solutions →
03Biogas Plants
Gas boosting & transfer
Twin-lobe blowers move and boost biogas from digesters and gas holders to engines, boilers, flares and upgrading units at a steady pressure.
Waste-to-Energy →
04Pneumatic Conveying
Pressure & vacuum conveying
Oil-free air moves cement, fly ash, flour, sugar, grains, plastic granules and powders through pipelines, in pressure mode or with an exhauster in vacuum mode.
Request Details →
05Fish Farming & Aquaculture
Ponds, tanks & RAS
Compact blowers keep dissolved oxygen up in ponds, tanks and recirculating aquaculture systems, day and night, with low noise and simple upkeep.
Request Details →
06Breweries & Food Plants
Process air & plant effluent
Oil-free air for process duties, bottle and can drying, agitation and conveying, plus aeration in the brewery's own effluent treatment plant.
Request Details →
Why Choose Wateria Air Blowers
Low Noise
Quiet design plus 7 – 15 dB(A) enclosures.
Energy Efficient
Right-sized blower for your air demand.
Compact
Saves floor space in the blower room.
Robust
Ribbed single-piece casing, leak-free seals.
Easy Service
Built for simple on-site maintenance.
Local Support
Wateria service teams in India & UAE.
HOW WATERIA SUPPORTS YOU
From Air Demand to Annual Maintenance
- 01
Pre-Commissioning Consulting
Air demand, diffuser depth, line losses and blower room review.
- 02
Blower Sizing
Model, speed, motor, duty / standby and enclosure needs.
- 03
Supply & Installation
Blower package, piping, valves and installation support.
- 04
Commissioning Trials
Post-commissioning trials, pressure checks and operator training.
- 05
Service & AMC
Oil, belts, filters, troubleshooting, spares and maintenance contracts.
ABOUT THE BRAND
Alpha Blowers: Roots Blowers Made in India
Specialists in Twin-Lobe Roots Blowers
Alpha Blowers, a division of Somaiya Techno Products, designs, manufactures, sells and services positive displacement blowers at its factory in Shiroli MIDC, Kolhapur, Maharashtra. With end-to-end in-house design and production, Alpha focuses on compact, energy-efficient, robust blowers that are easy to maintain on site.
- ISO 9001:2015Certified company
- KolhapurDesign & manufacturing
- 48 hoursService ticket response
- In-house design & production
- Trained, qualified service engineers
- Installation & commissioning support
- Service training & AMC
Mission: compact, energy-efficient, robust and easy-to-maintain blowers for sewage and effluent treatment, biogas, pneumatic conveying, fish farming and breweries.
Get the Right Air Blower
Steady air, low noise, simple upkeep.
Share your required air flow (m³/h), pressure or vacuum (mbar), and the application. Our team will select the right Alpha blower or exhauster, with an acoustic enclosure if needed, and send a techno-commercial offer.