Fine bubble technology is being adopted in a wide range of fields, from large recirculation plants to household appliances.
In water treatment facilities, large-scale cleaning lines and similar settings, system-type fine bubble generators that combine pumps and tanks have long led the market and built a solid track record. Even today, system-type units remain the most effective solution for applications that process large flows all at once.
At the same time, growing needs such as “integration into home appliances”, “adding value to housing equipment” and “space-saving retrofits of existing equipment” have brought nozzle- and fitting-type generating modules into the spotlight. This article explains the strengths of each type and why the nozzle and fitting type is so highly regarded for product integration and equipment design.
Choosing Between System-Type and Nozzle/Fitting-Type Generators
When selecting a fine bubble generator, it is important to choose the right type for the application and purpose. The features and main applications of each type are summarized below.
| Type | Feature | Main applications |
|---|---|---|
| System type | Equipped with high-output pumps and dedicated controls; ideal for treating large volumes and high flow rates of water | Bulk treatment of agricultural water, recirculation cleaning at large factories and plants, aquaculture facilities, etc. |
| Nozzle/fitting type (module type) | Compact design that connects directly into a pipe; depending on conditions, driven by the flow in the pipe without external power | Integration inside washing machines, dishwashers, showers and other equipment; targeted cleaning of specific areas, etc. |
Three Reasons Nozzle and Fitting Types Are Chosen for Equipment Integration
When home appliance and housing equipment manufacturers consider building this functionality into their products, the main reason they choose the nozzle/fitting type is its exceptional design flexibility.
1. Space Savings Through Water-Pressure Drive, with No External Power or Pump
Our nozzle- and fitting-type generators have internal flow paths designed to generate bubbles using the fluid energy (water pressure and flow rate) of the water passing through them. Because no dedicated motor, power wiring or piping tank is required, they fit neatly into even very limited spaces inside products.
2. A Structure That Fits Neatly into Existing Flow Paths (Piping Standards)
Because they are designed as threaded fittings, push-in fittings or inline piping components, you can upgrade existing products to fine bubble models simply by integrating them into the piping. This may allow you to avoid major mold modifications or a complete redesign of the product body.
3. The Flexibility to Install Them Exactly Where They Are Needed
Rather than making major changes to the entire flow path, you can place them precisely where fine bubbles will be most effective, such as just before a nozzle outlet or on a specific supply line. This enables a highly efficient product design with no waste.
| Reason | Design benefits |
|---|---|
| Space savings through water-pressure drive | No motor, power wiring or piping tank needed; fits into limited internal spaces |
| A structure that fits existing piping standards | Models can be upgraded simply by integrating into the piping, possibly avoiding mold modifications |
| Flexible, pinpoint installation | Can be placed only where the effect is needed, enabling an efficient design with no waste |
Small Generators That Demand Advanced Fluid Design
Nozzle and fitting types are characterized by their small, simple appearance, but they contain precise structural designs inside.
Balancing the conflicting goals of minimizing water pressure loss while generating high concentrations of ultrafine bubbles is where a core component manufacturer’s technology really shows.
Summary: Helping Make Your Products More Compact and More Functional
System-type units cover large-scale infrastructure and entire facilities, while nozzle- and fitting-type units excel at integration inside equipment and pinpoint applications. Each has its own role and strengths.
Shibata Co., Ltd. develops and supplies nozzle- and fitting-type fine bubble generators that integrate smartly into the limited spaces of household appliances, housing equipment, faucets and more.
- Shapes optimized for existing piping and fitting standards
- Flow path designs tailored to the operating water pressure and flow characteristics of your equipment
- Total support from prototyping and evaluation to mass production
If you are a manufacturer looking to integrate fine bubbles compactly into your products, or to add fine bubbles without changing your existing housing, please feel free to contact us.
About the Author
Nakamura, Fine Bubble Division, Shibata Co., Ltd.