Air that keeps treatment moving.

Positive displacement blowers for aeration, filter backwash and process air duties. Bare units and motor driven packages are available with vertical or horizontal arrangements.

Model family

A1-40 through A1-1024

Listed airflow envelope

24–7,143 m³/h across the performance table

Listed pressure columns

1,000–7,000 mmWG; dependent on the model

Table speeds

1,000–1,440 rpm; dependent on the model

Connections

40–350 mm across the listed family

Lubrication

Oil splash bearings and gears, isolated from the air chamber

Package

Base frame, motor rails, guard, filter, silencers, gauge, relief valve and NRV

Applications
Diffused aeration, filter backwash, pneumatic conveying and process air.

Use the model performance table for one matched airflow/pressure/speed point. Confirm the selected model and matched operating point before ordering.

Compact twin lobe units for smaller air duties, with motor size and outlet arrangement chosen for the required backpressure.

Drive

Direct drive or V-belt

Connection range in small unit table

20–40 mm

Motor ratings shown

0.75–2 hp, depending on unit

Selection

Airflow and power vary with discharge pressure

Applications
Small treatment plants and local aeration duties.

Do not size by plant KLD alone. Calculate oxygen demand, airflow and submergence losses first.

Water cooled construction is a supplier recommended option for demanding pressure duties in hot Indian ambient conditions.

Models

A1-42, A1-44, A1-55, A1-67, A1-610, A1-78, A1-710, A1-812, A1-1012, A1-1016

Supplier guidance

Consider water cooling above 0.7 kg/cm² pressure duty

Cooling services

Water flow, quality and temperature to be confirmed

Performance

Selected model curve and cooling configuration

Package accessories

Base, guard, silencers, filter, pressure gauge, PRV and NRV

Applications
Higher pressure process air and deeper aeration duties.

Request the selected model’s performance curve and cooling requirements before ordering.

A three lobe positive displacement range for continuous industrial air supply. Selection considers airflow pulsation, pressure, speed, noise and the complete package duty.

Model family

A1-TL40, TL50, TL60, TL80, TL100, TL125, TL150, TL200, TL250 and TL300

Listed airflow envelope

2–10,239 m³/h across the table

Pressure columns

1,000–8,000 mmWG; not every model covers every point

Listed speed envelope

1,000–2,850 rpm; dependent on the model

Opening sizes

40–300 mm

Power

BHP at the matched duty point

Applications
STP/ETP aeration, WTP backwash and industrial process air systems.

BHP is shaft power, not a motor nameplate recommendation. Motor sizing needs transmission losses, service margin and operating conditions.

Twin lobe Aqua series units for aquaculture and electroplating air supply. Lubricating chambers are isolated from the main air chamber.

Rated table pressure

2,000 mmWG

Rated table speed

1,200 rpm

Model airflow range

45–1,300 m³/h

Motor range

1–20 hp

Discharge connection range

40–150 mm NB

Applications
Pond aeration and compatible electroplating agitation.

All rows above are at the stated pressure and speed. Design the air grid and distribution losses for the actual site.

Single stage regenerative blowers for low pressure airflow applications. The aluminium impeller and casing support a compact, motor direct drive arrangement.

Supplier family envelope

Up to approximately 2,050 Nm³/h

Differential pressure

Up to approximately 280 mbar

Construction

Aluminium impeller and casing

Drive

Motor direct drive

Stages

Single stage range shown

Applications
Low pressure aeration, aquaculture and compatible industrial air duties.

These are family limits, not a guaranteed simultaneous operating point.

Gas boosting units based on the positive displacement principle. Materials, sealing and cooling must be engineered for gas composition and the installation safety requirements.

Model family

A1-40 Bio through A1-820 Bio

Listed flow envelope

24–3,450 m³/h across the table

Pressure columns

1,000–7,000 mmWG, where a model point is listed

Connections

40–250 mm

Configuration

Typically vertical flow; gas specific sealing

Cooling option

Water jet injection listed by the supplier

Applications
Biogas line pressure boosting to meet downstream burner duty.

Gas composition, moisture, contaminants, leak tightness, hazardous area motor and safety requirements need explicit supplier approval. Air ratings cannot be applied to every gas.

A vacuum duty range for specified industrial suction, conveying and waste handling applications. Select the unit against the actual absolute suction pressure and operating temperature.

Model family

A1-40 VCM through A1-820 VCM

Printed table flow envelope

24–3,450 m³/h

Printed differential columns

1,000–5,000 mmWG

Connection range

40–250 mm

Performance check

Absolute vacuum, inlet temperature and duty cycle

Applications
Compatible vacuum conveying and industrial or municipal waste handling equipment.

The printed mmWG columns do not define an ultimate vacuum rating. Confirm vacuum performance, cooling and any booster pump pairing with the supplier.

Ventilated acoustic enclosures help control package noise while allowing service access. Choose the enclosure with the blower package, airflow ventilation and site noise target.

Enclosure sheet

Approximately 1.5 mm MS

Insulation

Glass wool/foam construction

Finish

Exterior grade powder coating

Ventilation

Two or more exhaust fans, dependent on the design

Access

Space for blower and motor maintenance

Spare parts

Bearings, gears, oil seals and rotor sets

Applications
Noise sensitive residential, institutional and industrial installations.

No guaranteed dB reduction is stated here. Request an acoustic proposal for your operating duty.