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Econ Series Stennicator

Econ Series Stennicator Pump - Medicator Peristaltic Pump From Stenner

Injecting straight into the water line sets the Stennicator apart from traditional medicators and water driven proportioning pumps.

The Stennicator is adaptable to all existing houses with pulsing dry contact water meters, no additional equipment is required. Click here to watch a fun, animated video to see how.

Typical medicators use water to mix stock solutions needed for injection and are adversely affected by poor water quality such as grit, hardness or iron. Poor water quality does not affect the performance of the Stennicator; the pump injects straight into the water line eliminating garden hose bypasses that restrict flow. In addition, the pump is more than just a medicator, it is compatible with a wide range of livestock solutions and can inject strong acids and disinfectants without harm to the pumps's moving parts. The chemicals are contained in the peristaltic pump tube and suction and discharge lines. All Stenner peristaltic metering pumps are self-priming and do not lose prime from gaseous solutions.

How the Medicator Pump Works

The Stennicator requires a pulsing dry contact water meter and electricity to operate. The pulse from the water meter activates the pump which has a fixed run time to deliver the proper dosage. The pump has three different pulse settings to accommodate the most common water meters used in the industry; 1 or 10 pulses per gallon and 1 pulse per liter.

Additional features include prime and a standby setting. An internal relay allows the water meter pulse to send the signal to the house controller to register the water consumption. The internal relay continues to send the signal even if the standby setting is used to stop the pump from injecting.

Easy Installation of the Econ Stennicator

The Stennicator has a small footprint and can be easily adapted into all existing houses with pulsing water meters.

Click here for a video that illustrates how. An injection check valve is installed into the water line, two lead wires from the Stennicator are connected to the water meter and another two leads are connected to the controller. Suction and discharge lines are secured and the pump is plugged into a 110V outlet. For water flows up to 5.4 gallons per minute, a second Stennicator can be added for a duplex installation. A third pair of leads can be intertwined to cut the run time in half. This allows injection at 1:256 so two pumps can be wired in series to accommodate higher flow rates.

Unique Stenner Features

  • Periodic tube replacement, without tools, almost effortless with the patented quick release pump head.
  • Whiteboard animation video illustrates a Stennicator pump on a poultry farm.
  • Strong acids, disinfectants and solids that can attack seals in a medicator, do not affect the tube in a Stennicator.

0-80 psi (0-5.5 bar)

Item No. Pump Tube Roller Assembly
E20MH81S H Black
Ounces per Minute Pressure psi Milliliters per Minute Pressure bar
Approximate Output @ 60Hz
2.7 80 74 5.5


NOTE: Injection check valve included.

NOTICE: The information within this chart is solely intended for use as a guide. The output data is an approximation based on pumping water under a controlled testing environment. Many variables can affect the output of the pump. Stenner Pump Company recommends that all metering pumps undergo field calibration by means of analytical testing to confirm their outputs.

Output Control on/off switch, fixed Output 1ppg, 10 ppg, or 1 ppl
Reproducibility ±2%
Maximum Working Pressure 80 psi (5.5 bar)
Maximum Operating Temperature 104°F (40°C)
Maximum Suction Lift 25 ft (7.6 m) vertical lift, based on water
Motor Type 24 VDC, brushless
Approximate Shaft RPM 60
Duty Cycle Continuous
Max Viscosity 50 cps
Motor Voltage (Amp Draw) 120V 60Hz (0.17)
External Power Supply 100-120VAC, 60 Hz
Power Cord Type STP-2W
Power Cord Length 10 ft (3.05 m)
Power Cord Plug End Wall adapter power supply 100-120V, 60Hz
0.75A input, two prong, polarized 24VDC, 1.25A,
Class II output
Environment Indoor & outdoor


Materials of Construction
All Housings Polycarbonate
Pump Tube & Check Valve Duckbill Santoprene®*, FDA approved
Pump Head Rollers Polyethylene
Suction/Discharge Tubing,
Polyethylene, FDA approved
Tube Fittings Polypropylene, NSF listed
Check Valve Fittings Type 1 Rigid PVC, NSF listed
Connecting Nuts PP or Type 1 Rigid PVC
Suction Line Strainer PP or Type 1 Rigid PVC body
with Type 1 Rigid PVC cap, NSF listed;
ceramic weight
All Fasteners Stainless steel


Listings vary by model.

* Santoprene® is a registered trademark of Exxon Mobil Corporation.
** Versilon™ is a registered trademark of Saint-Gobain Performance Plastics.
† Pellathane® is a registered trademark of The Dow Company.

Pump Dimensions

Shipping Weight: 4 lbs (1.8 kg)

Box Dimensions: 8 x 7 x 10 in. (20 x 18 x 25 cm)