HQN Series · High-Density Nanobubble System

High-Density Nanobubble System HQN

HQN is a system that produces high-density nanobubble water with a high-pressure pump and bubble mixer. It suits cleaning, water treatment and production processes that require high dissolution efficiency.

Cleaning & Washing
Productivity
Water & Environment
Hygiene & Healthcare

Flow by model: 0.6 · 1.2 · 2.5 · 5 · 10 · 20 m³/h
Pump type: Booster / centrifugal + booster
Operating pressure: 3.2–5.5 bar (varies by model)
Gases: Air · O₂ · N₂ · H₂ (O₃ optional)
System configuration: Pressurized circulation

Tell us your application, required flow, target water and tank/piping conditions, and we will review a suitable model and configuration.

Benefits of a high-density nanobubble system

High-density nanobubble water produced by high-pressure operation is used in cleaning, water quality management and gas dissolution processes. Technical characteristics and conditions for each process are covered on the application pages.

Tank in a process that uses dissolved gas

Gas dissolution in processes

Gases suited to the purpose are dissolved with high efficiency for oxygen transfer and various gas–liquid contact processes.

Supports cleaning processes

The cleaning properties of nanobubble water can help stabilize quality in equipment, parts and surface cleaning. In a glass surface comparison test, 2 of 4 types of oil-based marker were completely removed (in-house test).

Circulating water and pipe management

Nanobubble water repeatedly circulated through tanks and pipes can be used to manage circulating water quality and fouling inside pipes.

Applications for HQN

It can be considered for any process that circulates water through tanks or pipes.

When HQN is a good fit

Sites that want to apply nanobubbles while circulating water through tanks or pipes
When adding a nanobubble system to existing piping or water treatment processes
Processes requiring high dissolution efficiency or high-density nanobubbles
When the required flow matches one of the 6 standard models

When another series fits better

For large flows where initial cost and power consumption need to be reduced, HEN
For strict hygiene standards, HTV
When raising dissolved oxygen is the only goal, HOA
For low flows of 5 L/min or less, the S Series

Compare product series

HQN configuration and installation

Target water is drawn in, treated with nanobubbles and returned to the same tank or circulation system.

Swipe left or right to see the full table.

Concept diagram. Actual piping, pumps, valves, gas supply method and layout depend on site conditions.

Target water intake

A pump draws water from the tank or circulation system.
Gas mixing and nanobubble generation

Gas suited to the purpose is mixed in and passed through the HQN bubble mixer.
Circulation

The nanobubble water is returned to the same tank or circulation system for repeated operation.

Sites requiring more than 20 m³/h use multiple units in parallel.

HQN Model Specifications

Compare flow, operating pressure and pump type by standard model. Detailed installation conditions and options are reviewed for each site.

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HQN flow, operating pressure and pump type by model
Item	HQN-001	HQN-002	HQN-003	HQN-005	HQN-010	HQN-020
Treatment flow (m³/h)	0.6	1.2	2.5	5	10	20
Treatment flow (L/min)	10	20	About 42	About 83	About 167	About 333
Operating pressure (bar)	3.2–3.8	4.5	4.5–5.0	4.5–5.0	4.5–5.0	4.5–5.5
Pump type	Booster pump	Booster pump	Booster pump	Booster pump	Centrifugal + booster pump	Centrifugal + booster pump
Gases	Air, O₂, N₂, H₂ (ozone optional)
System configuration	Pressurized circulation

Listed flows are each model's standard flow. Pressures are model operating conditions; actual pumps and system configuration are confirmed according to target water and installation environment. Flows not covered by standard models are available as custom builds by arrangement.

Ozone option

Choose the ozone option for processes that dissolve ozone in water.

What changes: Wetted parts are made of ozone-resistant materials.
Available models: All 6 models
Applications where the ozone option is recommended first: Car wash wastewater reuse, ozone advanced oxidation (AOP), sewage and wastewater treatment, livestock facility cleaning and disinfection, biosecurity
Also reviewed: Ozone concentration, off-gas ozone treatment, residual ozone, worker safety
What you need to provide: Ozone generator and off-gas ozone treatment equipment

HQN FAQ

Answers to key technical and adoption questions when considering HQN.

What is HQN used for?

It is used in circulation processes in cleaning and washing, water and environment, productivity and hygiene.

Suitable gases and operating conditions are reviewed after checking the target water and process purpose.

Should I choose HQN or HEN?

HQN, if high dissolution efficiency or high-density nanobubbles are needed.

HEN is the right choice if flows are large and initial cost and power consumption need to be reduced. HQN runs on a high-pressure pump, HEN on a standard surface pump.

Which gases can be used?

It uses air, oxygen (O₂), nitrogen (N₂) and hydrogen (H₂).

Ozone (O₃) is configured with the ozone option. Gas supply equipment is reviewed together to suit the gas used.

Can it also produce ozone nanobubbles?

It can be configured with the ozone option.

The design follows a check of ozone concentration, off-gas ozone treatment, residual ozone and worker safety conditions.

Can the flow be adjusted or scaled up?

Each model has a fixed rated flow, so choose the model for the flow you need.

Flows above 20 m³/h use multiple units in parallel, and flows not covered by standard models are available as custom builds by arrangement.

Do I need to replace existing equipment?

It can be added to existing tanks and circulation piping.

Suction and discharge connection points, pipe sizes, power and installation space are reviewed for each site.