Yasunaga air pumps create a promising future with minimal energy.

Electromagnetic air pump with excellent energy-saving and quiet performance.

Yasunaga Air Pump Co., Ltd.

Yasunaga Air Pump Co., Ltd., which has its head office in Sumida Ward, Tokyo, boasts one of the largest shares of the domestic air pump market. If you keep Nishikigoi in a pond, you will probably have heard of this company. Unlike filters and filtration equipment, air pumps don’t get much attention, but they are an important part of keeping fish alive, operating 24 hours a day, 365 days a year. Here we will introduce the ‘electromagnetic air pump’ of Yasunaga Air Pump Co., Ltd., which could be called the unsung hero of the industry.

High reputation and track record both in Japan and overseas.

Product lineup backed by technology.

Yasunaga Air Pump Co., Ltd. was established in 2005 as a spin-off from the environmental equipment division of Yasunaga Corporation. The company’s main business is the manufacture and sale of various types of air pump.
The parent company, Yasunaga Corporation, was founded in 1949. It is responsible for manufacturing in the automotive and industrial machinery fields, including engine parts and machine tools, as well as in the semiconductor field. It has six bases in Japan and overseas, and it produces a variety of products through its global network.
The main product of Yasunaga Air Pump Co., Ltd. is air pumps, and the first unit was produced in 1972 as an aeration device for residential septic tanks. Thanks to our flexible thinking and many years of research, our air pumps are now used in a wide range of fields, including industrial equipment, medical and health equipment, and live and ornamental fish tanks. Our products are renowned for their quality and performance. The applications for our products are endless, depending on your ideas.
In addition, the technology we have developed over many years and our strict quality control system have earned us a high reputation and support from countries in America, Europe, Oceania and Asia.
Due to their high performance, our products have a wide range of users in the ornamental fish industry, from ordinary fish keepers to professional fish dealers. We boast the top share in Japan due to the immense trust we have earned.
The manufacturer recommends replacing consumable parts once a year to prevent accidents. If used properly, they can be used for more than 7 years, and they have a long lifespan and excellent cost performance.

A diverse lineup to meet a variety of environments and conditions.

Air pumps are divided into six main types depending on their use and the amount of air they discharge. In this article, we will introduce four types used in the ornamental fish industry.
First, there is the small ‘YP type’ air pump (Photo 1). This type is mainly used in indoor aquariums, with a capacity of 6 to 20 litres per minute.
Next is the ‘AP type’ (Photo 2), which has an impressive orange cover. It is used widely by hobbyists and professionals alike, with a flow rate of 30 to 120 litres per minute. It is a product that could be said to be synonymous with Yasunaga Air Pump Co. It is highly versatile, with seven types to choose from depending on the scale of the breeding and the amount of water, and it achieves the industry’s top level of low noise, low power consumption and light weight.
The LP model is even more compact and energy efficient than previous models. It has a 150-200 litre per minute flow rate and a full-direction detection function protection switch, which eliminates problems inside the pump when the diaphragm (vibrating plate) is damaged. This model is ideal for medium-sized facilities.
Finally, there is the LW model (Photo 3), which boasts a maximum discharge volume of 400 litres per minute.
This is used in large ponds and at Koi shows. The adoption of a twin-unit drive system has greatly improved the lifespan of the diaphragm. It can be used with confidence even in large-scale facilities that are subject to heavy loads. It is a product that is active in all fields with clean air supply, and is the best product for breeders and distributors.

All about electromagnetic air pumps.

― The electromagnetic air pump has been loved by many users for many years, but for those who are currently using it or thinking about using it in the future, please tell us about the product’s features.

Okamoto: The main feature is that it uses low power. This has been a point that has been sought after in the septic tank industry for a long time. Over the past 20 years, we have been able to reduce power consumption by almost half. Although the price is higher than that of overseas-made products, since you can save on electricity bills, most products will pay for themselves in 2.5 to 3 years. You could say that it is a safe, long-lasting, and reasonably priced product.

― Does the noise level during operation bother you?

Okamoto: Another important point is quietness. In residential areas, if the pump makes too much noise, it can cause problems, so we are very particular about the noise level. Air has something called ‘pulsation’, so even if it looks like the air is coming out at a constant rate, it is actually undulating. For example, if there is a lot of pulsation, it can cause the pipes to vibrate, and the pipes inside the house may resonate. Loud noise can cause stress to Nishikigoi, so Yasunaga’s air pumps are designed to suppress this pulsation. We have reduced the noise by carefully designing each and every part.

― Where can I buy an air pump?

Okamoto: We don’t sell directly to individuals, so please consult with a company that carries out maintenance and inspections of water purification tanks. Alternatively, they are sold at DIY stores and online shopping sites, so please purchase from there.

― There are various products available, so how should I choose?

Okamoto: When used for keeping ornamental fish, the choice will depend on the conditions of use, such as pressure, air flow, purpose, and installation location. We recommend that you choose a product that meets your requirements from the specifications section of the catalogue.

― Where is the best place to install it?

Okamoto: Please place it in a semi-outdoor location, such as under an overhang. If there is no air flow, the heat will build up, so please place it in a well-ventilated location without a cover.

― Is it okay if it gets wet in the rain?

Okamoto: If it’s just a normal rain, there is no problem at all. However, if it rains heavily, please be careful as water will get in through the air intake.

― Is it necessary to maintain the air pump?

Okamoto: To ensure that it can be used for as long as possible, please clean the cleaner element once every three months. In addition, we recommend that you replace the consumable parts once every year to 18 months. By replacing them early, you can use the air pump with peace of mind, as you will be able to maintain its initial performance and prevent secondary damage to other parts.

― I hope this will encourage you to pay more attention to air pumps. Thank you for your time today.