Pongle S – Agricultural Oxygen Dissolver
An agricultural oxygen dissolver with a submersible pump and oxygen dissolving unit installed inside the reservoir to mix and circulate stored water with oxygen. Its main purpose is raising dissolved oxygen, and it runs independently of the existing irrigation equipment.
- Treatment flow rate
- 5 · 10 m³/h
- Operating pressure
- 1.0–1.5 bar
- Power supply
- 220 V single-phase
- Oxygen supply
- Oxygen generator included
We propose a suitable model based on your crop, storage tank capacity and irrigation conditions.
Better oxygen supply in irrigation water and cultivation benefits
Benefits farms can realistically expect, based on cultivation tests and on-farm trials using early oxygen supply technology. Actual effects may vary with crop and growing conditions.
Higher yield
Higher yields than the control were observed in cultivation tests; results vary with crop and growing conditions.
Higher product grade
A larger share of premium-grade fruit was confirmed in an on-farm trial; the price effect depends on market conditions.
Root development and early establishment
Differences in root development were observed in early-growth tests; the effect on establishment should be reviewed under site conditions.
Higher sales and income
Changes in yield and product grade can affect farm profitability; actual economics are evaluated including production costs and sales conditions.
Oxygen supply for reservoir-based irrigation
Applied to protected horticulture, hydroponics and nutrient culture, and seedling production using reservoirs and nutrient tanks. Installation suitability is reviewed against water depth, opening size and power supply.
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Greenhouse cultivation
Irrigation water storage tanks in protected horticulture and smart farms
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Hydroponics & nutrient solution culture
Storage tanks for hydroponics and nutrient supply water
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Seedling nurseries
Irrigation water storage tanks in seedling facilities
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Irrigation reservoirs
Irrigation water storage tanks of 2–10 m³
When Pongle S is a good fit
- Hydroponic and protected horticulture facilities with nutrient tanks or raw water reservoirs
- Sites that need to minimize changes to existing irrigation piping and nutrient supply equipment
- Storage tanks of 2–10 m³ with water depth of 60 cm or more and an opening of 40 cm diameter or more
When another option is needed
- For storage tanks shallower than 60 cm or with narrow openings, the externally installed surface-pump type (Pongle L)
- For processes that supply water directly without a storage tank, consider an HQN suited to the supply conditions
- For storage tanks under 2 m³ or over 10 m³, contact us for a separate capacity review
Submerged circulation independent of existing irrigation
The submersible pump and oxygen dissolving unit are installed in the storage tank, dissolving oxygen without separate circulation piping.
Oxygen supply performance and agricultural validation results
Results of cultivation tests and on-farm trials using early oxygen supply technology are presented separately from dissolved oxygen measurements of Pongle S.
Cultivation test results
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| Crop | Result (vs. control) | Period | Evidence |
|---|---|---|---|
| 5 pepper varieties | 14–58% higher yield | 2017.05–2017.07 | Cultivation test · Measured |
| Fruit vegetables | 7–38% higher yield | 2017.05–2017.07 | Cultivation test · Measured |
| Strawberry (about 3,300 m²) | 15%+ higher yield, larger share of top-grade fruit | 2018.09–2019.04 | On-farm trial · Measured |
| Oriental melon (early growth) | About 3× root density | 2 weeks after transplanting | Cultivation test · Observed |
Cultivation tests were carried out with early prototype equipment, not with individual Pongle S models. Results vary with crop and growing conditions; information on sugar content and firmness is based on farmer experience and published research.
Dissolved oxygen supply performance
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| Category | Dissolved oxygen | Notes |
|---|---|---|
| Ordinary groundwater | 7–8 mg/L | Raw water |
| Cultivation test conditions | 15–20 mg/L | Pepper and fruit-vegetable tests |
| Pongle S, 1 hour of operation | About 30 mg/L (+20–25 mg/L over raw water) |
Pongle-010 · 10 m³ tank · In-house test · Measured |
In an in-house test of Pongle-010 in a 10 m³ tank, dissolved oxygen of about 30 mg/L was measured after 1 hour of operation. Actual concentration reached and operating time vary with initial water quality, water temperature and oxygen consumption.
In-reservoir circulating oxygen dissolution system
The submersible pump circulates reservoir water while promoting dissolution of oxygen supplied by the oxygen generator. It runs independently of existing irrigation equipment, with operating time set according to target dissolved oxygen and irrigation conditions.
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Oxygen supply
Oxygen from the oxygen generator, installed outside the reservoir, is supplied to the submerged oxygen dissolving unit.
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Circulation and dissolution in the reservoir
The submersible pump circulates the stored water, and the oxygen dissolving unit promotes gas–liquid mixing. Standard operating pressure is 1.0–1.5 bar.
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Linked to irrigation
The oxygenated water is delivered to the growing area through the existing irrigation pump and nutrient supply equipment.
Pongle-005 · Pongle-010 Specifications
A suitable model is selected after a combined review of storage tank capacity, target dissolved oxygen, irrigation volume and operating conditions.
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| Item | Pongle-005 | Pongle-010 |
|---|---|---|
| Treatment flow rate | 5 m³/h | 10 m³/h |
| Pump power | 0.6 kW | 0.75 kW |
| Power supply | 220 V single-phase | 220 V single-phase |
| Size (diameter × height) | 20 × 40 cm | 23 × 50 cm |
| Recommended tank capacity | 2–3 m³ | 3–10 m³ |
| Oxygen generator | 5 L/min | 8 L/min |
| Common specifications | Details |
|---|---|
| Product name | Pongle S |
| Base series | HOA oxygen dissolution system |
| Type | Submersible pump + oxygen dissolving unit, installed directly inside the tank or reservoir |
| Operating pressure | 1.0–1.5 bar |
| Gas used | Oxygen (oxygen generator included) |
| Dissolved oxygen measurement | Pongle-010, in-house test in a 10 m³ tank: about +20–25 mg/L over raw water after 1 hour of operation |
| Operating mode | Operating time adjusted to the target dissolved oxygen |
| Wetted-part materials | Stainless steel, ABS |
| Installation conditions | Water depth 60 cm or more, opening 40 cm diameter or more |
These are standard model specifications; dissolved oxygen values are limited to the stated in-house test conditions. Model and operating configuration are reviewed according to installation conditions and required treatment capacity.
Scope of supply and adoption process
Model selection and supply specification are reviewed based on crop and cultivation method, storage tank capacity and irrigation conditions.
Included
- Oxygen dissolving unit: mixes oxygen with circulating water
- Submersible pump: submerged circulation unit combined with the oxygen dissolving unit
- Oxygen generator: 5 L/min for Pongle-005, 8 L/min for Pongle-010
Site preparation
- Tank or reservoir: water depth 60 cm or more, opening 40 cm diameter or more
- Power: 220 V single-phase near the tank
- Oxygen generator space: 60 W × 40 cm D
Information needed for a quote
- Crop: crop and cultivation method
- Tank capacity: capacity of the nutrient tank or reservoir (m³)
- Irrigation volume per cycle: water supplied in one irrigation
- Irrigation interval: interval and number of irrigations per day
From technical consultation to delivery and installation
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Inquiry
We receive your application conditions and objectives via the inquiry form or by phone.
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Site check
We check storage tank dimensions and depth, opening, power and irrigation operating conditions.
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Quote & specification
We propose model specifications and a supply quote based on the review.
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Delivery & installation
Delivery and installation usually take 2–3 weeks after order confirmation.
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Warranty & service
The warranty period is 1 year. Failures caused by user error are repaired at cost.
Pongle S FAQ
Answers to key technical and adoption questions when considering Pongle S.
How do I choose between the submersible and surface-pump types?
If the reservoir meets the depth and opening requirements, the submersible type can be used.
The submersible type circulates water inside the storage tank, minimizing changes to existing irrigation piping. For shallow tanks or tanks with narrow openings, consider the surface-pump type.
Do I need to provide oxygen separately?
An oxygen generator is supplied with the unit.
No separate oxygen cylinders are needed in the standard configuration. Space for the oxygen generator (60 W × 40 D cm) and 220 V single-phase power must be provided.
How many hours a day should it run?
Operating time is adjusted to the target dissolved oxygen.
The required run time depends on tank capacity, irrigation volume per cycle and irrigation interval; we advise on operating time for your site conditions at the quotation stage.
Do I need to change my existing nutrient supply or irrigation equipment?
It can be applied while keeping the existing irrigation pump and nutrient supply equipment.
The oxygen dissolver is installed inside the storage tank and circulates independently of the existing irrigation lines. Before installation, water depth of 60 cm or more, an opening of 40 cm diameter or more and power supply conditions are checked.
Which crops can it be used for?
Tests and trials have been carried out on peppers, fruit vegetables, strawberries, roses and other crops.
Results vary with crop and growing conditions; test conditions and results by crop are available in the case studies.
How do I check the price?
We review storage tank capacity, irrigation conditions and oxygen demand to propose a model and quote.
A suitable model is selected based on crop, storage tank capacity, irrigation volume per cycle and irrigation interval.
How are installation and after-sales service handled?
Delivery and installation usually take 2–3 weeks after order confirmation, and the warranty period is 1 year.
Failures caused by user error are repaired at cost; service requests are accepted via the inquiry form or by phone.
We propose an oxygen dissolution system suited to your irrigation conditions. A suitable model is selected based on crop, storage tank capacity, irrigation volume per cycle and irrigation interval. Drawing on field experience in agriculture, we provide technical consultation on installation suitability and operating plans.
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