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Purfresh® OG-4000 Series generators provide customers with a compact yet powerful purification solution, with completely integrated packages for purifying air or process water. The generators are entirely self-contained, and include air preparation, oxygen concentration, ozone generation, distribution, and closed-loop PLC-based control and communication. All of these features are contained in a compact 24” x 24” x 11” cabinet that can be wall or skid mounted.
OG-4000 Series generators produce efficient ozone output with high concentrations of ozone for maximum efficacy. Consistency and efficiency is obtained by integrating a complete air preparation subsystem that dries ambient air to -100ºF dew point and produces feed gas that includes 93 percent oxygen for more consistent and efficient ozone output. In addition, the corona discharge, air-cooled, ceramic flat plate ozone cell includes a precisely machined gap for consistent production, as well as sophisticated electronics for efficient power utilization, safe and quiet operation, and precise control. Output can easily be increased by adding a slave generator(s) controlled by another 4000 series system.
The OG-4000 Series generators come integrated with a programmable logic controller (PLC) that safely controls the entire system and gives operators flexibility in operation as well as communication. The control software includes 1% to 100% linear turndown for targeted manual ozone distribution, as well as the ability to set specific PID values for automated, closed-loop control response. The integrated PLC contains an Ethernet interface to communicate back to the Purfresh Intellipur™ Command Center for remote diagnostics and control, and the PLC can easily be integrated into a larger, plant-wide SCADA system.
Purfresh OG-4000 Series generators are simple to get up and running quickly. The generators are small, so they’re easy to mount on a wall or a skid, and they plug into a standard outlet. They are air-cooled, eliminating the plumbing and maintenance issues that come with water-cooled solutions. An air-preparation subsystem is included in the generator with an oxygen concentrator and a compressor, so no extra plumbing is necessary to connect the generator to an external compressor or house air. |
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Integrated system in small package
- Wall or skid mounted
- Integrated air preparation
- Integrated PLC-based closed-loop control
Flexible communication
- Ethernet communication
- Remote diagnostics,
troubleshooting, alarming, and reporting with Intellipur
- Integration into plant-wide SCADA
Plug-and-play installation
- Plug into standard outlet
- Air-cooled eliminates plumbing
- No external compressor needed
Disinfection of fresh produce
Post-harvest cold storage of perishables
Production of high-purity water for use in pharmaceutical and personal care products
Purification and disinfection for bottled water |
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4000-MA |
4000-EA |
4000-IA |
OG4X00 |
OG4X50 |
Cabinet Type |
Air/Water |
Air/Water |
Air/Water |
Air |
Water |
O3 Output |
1 lbs/day @ 8.5% (20 g/hr), 2.0 lbs/day @ 6.0% (38 g/hr), 3 lbs/day @ 3.7% (56 g/hr) |
O3 Generator Technology |
Air-cooled, corona discharge, ceramic dielectric flat cell |
Air Preparation Package |
External O2 concentrator and compressor |
Internal |
Air Preparation Spec |
93% oxygen output @ 7.5LPM (16 CSFH) @ 10psig and -100ºF dew point |
Control System |
Manual flow, pressure or External PLC |
Closed-loop PLC-based control and manual 1%–100% linear turndown |
HMI |
LED visual O3 indicator |
4.3” diagonal color touch screen HMI |
Intellipur Site Monitoring Workstation |
4.3” diagonal color touch screen HMI |
Communication |
None |
Wireless 802.11 to local Intellipur Workstation |
Ethernet from PLC |
Dimensions |
24” x 24” x 11” (61cm x 61cm x 28cm) |
Weight |
70 lbs (32 Kg) |
75 lbs (34 Kg) |
120 lbs (54 kg) |
Operating Temperature |
32ºF – 77ºF (OºC–25ºC) |
Cabinet |
Aluminum, NEMA12 |
Power Requirements |
120 or 220 VAC single phase, 50–60 Hz |
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Power Consumption |
500 Wh |
1kWh |
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