Sentinel® Commercial aeration systems are for large lakes and ponds where multiple aeration stations are required to provide adequate circulation and mixing in large bodies of water.
Sentinel® Commercial are availablle with either rotary vane air compressors or rocking-piston air compressors. The rotary vane systems provide more airflow and less pressure and so should be used in ponds and lakes no deeper than 16' deep; typical operation is in depths from 6' The piston air-compressor systems can be used in deeper ponds anywhere from 15' to 50' deep.
All cabinets are mounted on an equipment pad and include free noise-reduction insulation kit for reduced noise at no additional cost.
Airline is sold separately.
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![]() Aerates up to 4 Acres Model:1/2 HP & 3/4 HP Each System Includes: Steel Cabinet on Equipment Pad One Piston air compressor (1/2 HP or 3/4 HP) Two or Four Diffuser Assemblies Two or Four Valved Manifold Rail Ventilation Fan Sound-Proofing Insulation Kit Cabinet Mounted to Equipment Pad Electrical Box Installed Pressure Gauges Relief Valves Key for Cabinet Instructions Airline is sold separately. *Maximum diffuser depth is 50' for the piston compressor systems. Airflow will be reduced as pressure (depth) increase. **Each diffuser station has 2 x 9" EPDM discs on weighted-base. Add gravel to hollow base for ballast. ***Cabinet is steel (powder coated) and includes insulated sound-reduction kit, valve manifolds, pressure gauges and relief valves. Ventilation fans and eletrical box inside cabinet with a conduit running out the bottom for your electrical hook-up. Comes bolted on a gray equipment pad |
Piston Sentinel® Commercial System *Maximum diffuser depth is 50' for the piston compressor systems. Airflow will be reduced as pressure (depth) increase. **Each diffuser station has 2 x 9" EPDM discs on weighted-base. Add gravel to hollow base for ballast. ***Cabinet is steel (powder coated) and includes insulated sound-reduction kit, valve manifolds, pressure gauges and relief valves. Ventilation fans and eletrical box inside cabinet with a conduit running out the bottom for your electrical hook-up. Comes bolted on a gray equipment pad |
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Model | Compressors |
Power Consumption (per compressor) |
Diffuser Stations** | Total Available Airflow | Cabinet*** |
PR-SENT50 |
1 x 1/2 HP Stratus® Rocking Piston |
4.0 amps - 115 v 2.0 amps - 230 v |
2 Stations 4 x 9" discs total |
4.5 CFM | Yes |
PR-SENT75 |
1 x 3/4 HP Stratus® Rocking Piston |
5.7 amps - 115 v 2.9 amps - 230 v |
4 Stations 8 x 9" discs total |
6.5 CFM | Yes |
Airline is sold separately. Use 1/2" or 5/8" weighted airline in ponds and lakes. On shore use heavy-duty poly-pipe (1/2" or 5/8") suitable for burial.
Replacement rotary vanes, piston-rebuild kits, air filters and diffuser discs are all available as replacement parts.
1 Year Limited Warranty on Compressor (sacrificial vanes and piston seals excluded as excessive wear due to improper depth placement of diffuser can cause premature wear)
5 Year Limited Warranty on Cabinet & Diffusers.
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