ETP, STP, WTP ডিজাইন, Installation এবং DOE ছাড়পত্র — শুরু থেকে শেষ পর্যন্ত
Product overview
A Roots air blower is a positive-displacement machine. Two meshing, lobe-shaped rotors turn in opposite directions, trapping air at the inlet and pushing it out at the discharge. Every turn moves the same volume, so the airflow stays steady even when the back-pressure changes.
In ETP, STP and WTP plants it feeds the diffuser grid at the bottom of the aeration tank, keeping enough dissolved oxygen in the water for bacteria to break down the organic load.
Don’t confuse it with
A Roots blower is not a turbo blower. It moves fixed pockets of air without compressing them inside the casing, while a turbo blower compresses air dynamically with a high-speed impeller.
Specifications
Ranges cover the full series — we confirm the exact model, rating and datasheet for your plant.
Technical data
8 parametersRelated products
Tell us about your plant — we’ll size the right roots air blower and send a price with the datasheet.
Rotary lobe blower that delivers a steady, constant volume of aeration air to ETP, STP and WTP biological tanks.

Brand
Trundean
Origin
Taiwan
Get a quotation
Send us your flow, load or line size — an engineer will confirm the model and send a price with the datasheet.
Request a quotationSized by engineers
We pick the model from your flow, load and tank design — not from a catalogue guess.
Installed & commissioned
Our team installs, tests and hands over the equipment running.
Trundean
High-speed centrifugal blower with inverter control — airflow follows oxygen demand, so aeration costs less to run.
After-sales support
Service, spare parts and troubleshooting across Bangladesh.
Fits your DOE plan
Equipment chosen to help your plant meet DOE discharge standards.