HN55-128-2 Chemilizer non-electric chemical injector pump

HN55-128-2 Chemilizer non-electric chemical injector pump
HN55 Chem Feeder 2 to 128 Ratio - 1.56 percent Injection
List PriceUS$555.00
Our Price0
Catalog IDHN55-128-2
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The HN55 is a proportional liquid chemical injector; it injects a precise amount of chemical in proportion to a volume of water.

The HN55 does not use electricity. It runs off of water flows as low as one gallon per hour, and will work with gravity via a water drop of as little as 5 feet (1.5 meters)!

See extended Info : Chemilizer Inejction Pumps

Accurate and dependable injection

The HN55 utilizes a unique diaphragm driven water motor and a hardened, positive displacement chemical pump ensuring a high level of accuracy!

Durable and rugged performance

The HN55 is field-proven to be highly reliable and rugged. The HN55’s diaphragm water motor is unaffected by small particles in the water flow, such as sand, which scar pistons damaging competitive injectors. Also, the HN55 injects chemicals into the water flow downstream of the injector. Chemicals never enter the water motor, precluding it from chemical damage.

Simple to install

Chemilizer injectors are simply installed using standard plumbing parts that are easily obtained from most hardware or plumbing stores. Chemilizer also sells installation kits, ensuring you have everything you need to get the job done.

Quick and easy maintenance

Typical maintenance does not require tools! General maintenance involves the chemical pump which is easily removed with a quick ¼ turn. Otherwise, Chemilizer has a nationwide network of Factory Authorized Repair Centers to assist you.


Chemilizer Products, Inc. provides the most comprehensive warranty in the industry! We provide a 2-year warranty on the water motor – a warranty that provides for more than just defects in materials and manufacturing!


The chemical pump on the HN55 is available in six (6) sizes (injection ratios), and is offered with either Viton or silicone seals. Selection of a Chemical Pump is typically determined by the chemical(s) to be injected.

The optional Remote Injection Kit is always used when injecting chlorine solutions or acids for pH control.

Technical Specifications

U.S. Measure Metric Measure
Water Flow 1 GPH – 780 GPH
0.01666 GPM – 13 GPM
3.78 LPH – 2,724 LPH
0.063 LPM – 45.4 LPM
Pressure Range 2 to 80 psi 0.138 to 5.51 bar
Max. Temp 110° F 43.3° C
Pipe Size* 3/4” nht (National Hose Thread) N/A
Ratio **see label on chemical pump **see label on chemical pump
Size 11” high x 8.5” wide 27.9 cm high x 21.6 cm wide
Weight 6.75 lbs 2.5 kg

HN55 Pump Ratios Options

Model No. HN55  

Fixed Ratio














pH Range

2 - 12

2 - 12

2 - 12

2 - 12

2 - 12

2 - 12


To learn more, contact APS WATER at 1.800.460.9011

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