Lowest Cost Oxygen per Unit

In recirculating aquaculture and hydroponic systems, oxygen is a major cost component, especially when using delivered compressed or liquid oxygen. High Volume Oxygen has been making PSA oxygen-generating systems for commercial applications since 2011, and is now an emerging leader in the industry.

  • HVO systems deliver the lowest cost per unit of oxygen:

    • $0.069 to $0.10 per kilogram*

    • $0.032 to $0.047 per pound*

    • $0.26 to $0.39 per 100 CF*

  • Less costly than all other PSA oxygen generating systems

  • Less costly than compressed tanks

  • Less costly than liquid O2

* Actual cost is determined by the precise configuration and the cost of power in your region. Large HVO systems generally deliver a lower cost per unit than small systems. The calculations above assume an industrial power rate of $0.067 per kWh, which is the national average as of April, 2019.


Multiple concentrators working together provide redundancy and reliability. The loss of any single concentrator can be sustained without bringing the entire system down. Compare this to monolithic PSA systems, which require very expensive redundant components to provide continuous operation.

  • HVO systems are modular and expandable, permitting you to grow your oxygen-generating capacity while preserving your original investment.

  • The use of off-the-shelf oxygen concentrators facilitates redundancy, increases reliability, and lowers the overall cost. We sell new Respironics and Airsep concentrators, but other models of oxygen concentrators may be used**.

  • No air dryer required. Air driers are expensive and they represent a single point of failure for monolithic PSA systems.

** A rare few models of PSA oxygen concentrators are not compatible with the HVO system. Speak to a customer advocate for more information.

HVO oxygen-generating systems

60 Liter per minute system with 80-gallons of storage

60 Liter per minute system with 80-gallons of storage

A scalable oxygen-generating solution that comes complete with everything you need to make your own oxygen. Each system includes a compressor, digital logic controller, storage tank, relay boxes and manifold lines. It is also available with the Seeing Eye(TM) Cloud Monitoring Service.

  • The HVO System fully-automates the oxygen generating process. It automatically turns the compressor and the attached oxygen concentrators on and off to keep pace with demand.

  • Your usage and configuration will determine how often the machine runs to generate oxygen. Generally, systems should be configured with enough capacity to exceed the peak anticipated flow rate.

  • Each system is constructed of oxygen-rated, high-quality components, and is built to order with your operation’s specifications in mind.

  • Aquaculature systems include an LCD/LED panel that provides at-a-glance details about oxygen purity and tank pressure.

  • The Seeing Eye(TM) cloud-based reporting and monitoring solution provides you with email and text notifications to alert you about issues such as a power outage, loss of Internet service, changes in oxygen purity, and low tank pressure. In addition, this option enables you to look at a real-time graph of your system's status using your phone, tablet, or desktop computer.

Dissolved Oxygen Process Controller (DOPC)

The Dissolved Oxygen Process Controller (DOPC) is the brain of the HVO DO system. It measures DO saturation, water temperature, TDS and pH. These measurements are stored in the cloud every 10 seconds. The DO sensor readings are matched with high and low DO setpoints to maintain saturation within a configurable range.

When DO falls below the low setpoint, the DOPC energizes the AC and DC (coax) outlets for transmitting power and/or signals to various connected components. When the high setpoint is reached, the DOPC turns off power to the connected components. The components may include an HVO High Pressure Nano-bubbler, an HVO Flow Controller, an HVO Oxygen Generating system, and PSA oxygen concentrators. Measurements stored in the cloud are used for remote monitoring and notifications via email and text message. This enables you to record and constantly monitor dissolved oxygen levels so that you can respond immediately to changes in conditions.

  • Dimensions: 10.5" x 6.25" H x 6.25" D

  • Weight: 8 lb 2 oz

  • Power: 120 vac, 15 amps with 20 amp breaker

  • Features: 3 AC outlets @ 5 amps ea, 2 DC outlets @ 24v ea