2025 Nelsen Corporation Catalog - Catalog - Page 98
3 Sentry Open Air Systems
Filtration Equipment
Sentry I Open-Air System
The Sentry I Open-Air System combines aeration with chlorination to provide superior water quality. The
system adds air to the water with an adjustable venturi as it enters the tank through a solenoid valve
that is controlled with an electronic float inside the tank. This air starts the oxidation process and dilutes
gasses in the water such as Methane. While the unit fills, the chlorinator dispenses the exact amount of
chlorine desired. The chlorine sanitizes the water and finishes the oxidation process getting rid of odors
and killing bacteria. The water first flows into the bottom of the first chamber and then flows over into
the second chamber where the submersible pump pressurizes the water to the home. This system has
three floats, one mechanical safety overflow, one electrical low-level shutdown, and one electrical water
level maintaining float. The system is complete with the chlorinator, bypass, bladder tank, pump, and
is pre-wired for an easy install. This system is often described as a personal municipality for the home
providing 24-7 protection.
SENTRY-10-METH
FOR METHANE REDUCTION
SENTRY I OPEN AIR G130 SERIES GENERAL OR GAS REDUCTION SYSTEM
Our toughest and most popular package Treats Iron, Iron Bacteria, Arsenic, Hydrogen Sulfide,
Manganese, and Methane. Includes 22 gallon Bladder Tank, Sentry I Chlorinator, Three Valve Bypass,
1/2hp/110vac/10gpm Submersible Pump, and is pre-wired for quick installation.
SENTRY-10-METH
10 GPM, 1/2hp, 110v Pump
SENTRY I OPEN AIR G130 SERIES AQUA-BOOSTER SYSTEM
“City-Like” water pressure and the smallest foot print Treats Iron, Iron Bacteria, Arsenic, Hydrogen Sulfide, and Manganese. (Not for use with Methane)
Includes 2.1 gallon Bladder Tank, Sentry I Chlorinator, Three Valve Bypass, 1/2hp/110vac/10gpm Submersible Pump, and is pre-wired for quick installation.
SENTRY-10-AB
w/Aqua Booster, 10 GPM, 1/2hp, 110v Pump
SENTRY I G140 SYSTEM OPEN AIR SYSTEMS
High Flow System Treating water up to 25gpm, The G140 uses 2-140 gallon tanks that provides contact
time to treat your customer’s water. Each system comes with Bladder Tank, Sentry I Chlorinator, Three
Valve Bypass, and Submersible Pump. Order this system in any configuration as the G130 systems.
SENTRY-10-AB
SENTRY G140 OPEN AIR
The General or Gas Reduction System (G140)
1hp/220vac/25gpm Pump, 40/60 pressure & 50 gallon Bladder Tank
SENTRY-25-METH
25 GPM 40/60 Pressure Sys, 50 Gal Bladder Tank
Aqua-Booster System (G140)
1hp/220vac/25gpm Pump, & 5 gallon Bladder Tank
SENTRY-25-AB
w/Aqua Booster, 25 GPM, 1hp, 220v Pump
Low-Yield System (G140)
This system provides 10gpm and stores 110 gallons of usable water for those low-yield applications.
1/2hp/110vac/10gpm Pump, & 20 gallon Bladder Tank
SENTRY-10-LOW YIELD
10 gpm Open Air Low Yield - Methane
AIR-STRIPPING PACKAGE FOR G130 OR G140 SYSTEMS (RADON)
Pick the Open-Air System of your choice and add an Air-Stripping Package for Radon, VOC’s or CO2
reduction. This package is the quietest system on the market, has a negative pressure design for added
safety (recommended by the EPA), and every unit comes with chlorine dispenser for sanitation.
SENTRY-AIR STRIPPER
Air-Stripper for Radon, VOC’s or CO2 Reduction
THE REVOLUTION PACKAGE FOR G130 OR G140 SYSTEMS (EXTREME IRON OR MANGANESE)
The ReVolution package is the key to keeping your Open-Air tank clean and eliminates the need to flush
debris from the tank. This “clean” environment reduces maintenance, increases contact time, and is
one of the most efficient back-washing filters on the market. The open-loop filtration process works by
circulating water from one chamber of the Open-Air tank, through the 10”x45” filter, and back into the
other chamber. This is a must have package for all extreme iron or manganese applications.
SENTRY-ReVOLUTION
Sentry ReVolution Circulation Filter
SENTRY-REVOLUTION
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All prices and products subject to change without notice. ©Nelsen Corporation
