Brother Wastewater Engineering Co. had been started to importing TOHIN Rotary Vane Blower,and turned into OEM production.In 1998, our excellent products have been exported to China, Southeastern Asia, USA and European where we have good reputation for high quality products. Now we will continue innovate and develop in our professional field to serve our customers.TOHIN Rotary Vane Blowers have been used for a long time for aeration of on-site wastewater treatment, not only for domestic but also for industrial or community. The established production of more than 4 million units is a good proof of reliability.
Principles and Construction

- A blower will be used when a large quantity of air is required at normal press 0.1~0.5 kg/cm2G or so.
- A blower consists of the following main component units. Construction is simple, resulting in being little in occurrence of trouble.
Motor Air chamber Air filter
Base (and Oil tank) Blower body Oil dropping nozzle - A blower is so designed and constructed that air is sucked, compressed and discharged repeatedly while vanes protruding from the grooves of rotor are coming in and out by revolution of a rotor (rotating body) set eccentrically inside the cylinder diameter.
- Friction heat is generated due to friction of iron and iron at rotating part and reciprocating part. Therefore, a minimum required quantity of circulating oil is dropped into the cylinder always while operating, by means of an oil dropping nozzle in order to make lubrication for the purpose of prevention of generation of heat and noise. Airtightness of blower is maintained by formation of an oil film among parts.
- An automatic circulating equipment designed and manufactured by taking advantage of differential pressure of blower is adopted for circulation of oil.
Features of DISO Rotary Vane Blowers
1.Compact, powerful air flowrate and yet silent operating sound.
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Compressed air is produced by revolving movement. Therefore, BROTHER Rotary Blowers display their powerful discharge capacity for their compactness. And yet, the operating sound is so small as eluding all attempts at mitation by other competitors. As the operating sound is quiet, no machine room is required for small capacity models. No large models require the soundproofing equipment in the machine room.
2. No vibration at the time of operation and simple installing work.
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In the case of small types, no vibration is generated at all. Mere installation of a rotary blower is enough to meet your requirements, not requiring tightening work with anchor bolts. No limitation is placed on installing place.
3. Securing of a fixed air flowrate even if a change takes place in the operating condition.
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Take for instance, if a BROTHER Rotary Blower is used for sanitary treatment in the septic tank, almost no air flow rate is decreased even if load becomes large due to the change in the pressure inside tank.
4. Provided with an air chamber for carrying out air dispersion smoothly.
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All models are provided with an air chamber, resulting in being free from air pulsation and air dispersed smoothly.
5. High superiority for keeping always high performance.
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Highly durable materials are adopted for all operating parts and outside, including cylinders. BROTHER Rotary Blowers are designed and manufactured very robustly as almost free from trouble and deterioration of performance after a long use.
6. Unique mechanism – oil dropping equipment.
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No oil choked, no oil scatter, and very little oil decrease by the unique mechanism – oil dropping equipment.
7. Check valve built in (All type)
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Provided with a check valve which prevents the back flow from the tank.
8. Air releasing valve built in (All type)
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Provided with an air releasing valve which prevents the burning damage of a motor at the time of overloading that is clogging trouble of air dispersion pipe and which serves for an alarm whistle.
Applications :
For sanitary treatment (exposure to the air) in the septic tank and for purification of water.
For agitation in plating tanks and wastewater treatment tanks.
For breeding and propagating fish in water tanks for tropical fish and fish ponds.
For spraying for heavy oil and kerosene oil burners.
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