1:128 Medicator System | Econ Stennicator Meter System

Econ Stennicator Meter System

Watch the video illustrating a poultry farm scenario and the Econ Stennicator pump.

Stenner's 1:128 Econ Stennicator Meter System keep birds hydrated and healthy.

Stenner's proportional pump for the injection of livestock supplements at the fixed ratio of 1:128 is the Econ Stennicator. Saving time is a plus for busy farmers and the Econ Stennicator Meter System is pre-assembled, ready for installation and includes the pump and water meter. The plastic water meter is certified by IAPMO to ANSI/NSF 372, low lead. The components are pre-mounted on a heavy duty panel that is attached to a wall.

Traditional medicators and proportioners are typically hampered by poor water quality or the water bypass that can restrict water flow. In addition, some aggressive solutions attack the internal working parts of the water driven pump. The Stennicator does not restrict flow, the pump injects at the 1:128 ratio straight into the water line. The chemicals injected are contained in the peristaltic pump tube and the suction and discharge lines and do not touch the moving parts in the pump. Like all Stenner peristaltic metering pumps, the Stennicator is self-priming with no loss of prime due to gaseous solutions.

How It Works

The Stennicator runs on electricity and is activated by a dry contact, pulsing water meter. An internal relay allows the water meter pulse to send a signal to the house controller so water consumption continues to register. The system includes a lead-free plastic water meter, select 3/4" 1" and either 1 or 10 pulses per gallon or 1 pulse per liter. The Single meter system provides 1:128 injection for water flow rates up to 2.7 gallons per minute (162 gallons per hour). The Dual meter system includes two pumps to keep up with water flow rates up to 5.4 gallons per minute (325 gallons per hour).

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.
  • The system design allows convenient accessibility.

Meter System Installation Instructions
Econ Stennicator Pump Manual
Econ Stennicator Flyer

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0-80 psi (0-5.5 bar)

Item No.Pump
per Minute
per Minute
Approximate Output @ 60Hz

NOTE: Injection check valve included.

exclamationNOTICE: 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.

Econ Stennicator Pump

Output Controlon/off switch, fixed Output 1ppg, 10 ppg, or 1 ppl
Maximum Working Pressure80 psi (5.5 bar)
Maximum Operating Temperature104°F (40°C)
Maximum Suction Lift25 ft (7.6 m) vertical lift, based on water
Motor Type24 VDC, brushless
Approximate Shaft RPM60
Duty CycleContinuous
Max Viscosity50 cps
Motor Voltage (Amp Draw)120V 60Hz (0.17)
External Power Supply100-120VAC, 60 Hz
Power Cord TypeSTP-2W
Power Cord Length10 ft (3.05 m)
Power Cord Plug EndWall adapter power supply 100-120V, 60Hz
0.75 input, two prong, polarized 24VDC, 1.25A,
Class II output
EnvironmentIndoor & outdoor
Materials of Construction
All HousingsPolycarbonate
Pump Tube & Check Valve DuckbillSantoprene®*, FDA approved
Pump Head RollersPolyethylene
Suction/Discharge Tubing,
Polyethylene, FDA approved
Tube FittingsPolypropylene, NSF listed
Check Valve FittingsType 1 Rigid PVC, NSF listed
Connecting NutsPP or Type 1 Rigid PVC
Suction Line StrainerPP or Type 1 Rigid PVC body with Type 1
Rigid PVC cap, NSF listed; ceramic weight
All FastenersStainless steel

Agency Listings


* Santoprene® is a registered trademark of Exxon Mobil Corporation.

Plastic Water Meter

Flow Rates*

SizeFlow Rate
per Gallon
3/4"0.25 to 2212410
1"0.75 to 5012410
1 1/2"2.0 to 10012410

* Continuous Flow: The meter size should be selected based upon continuous flow, gpm, as opposed to pipe size.

Accuracy±2% when operating between
minimum and maximum flow range
TemperatureRange 35-122°F (1.7-50°C)
Pressure Ratings15-100 psi (1.0-6.9 bar)
Maximum Current20mA
Maximum Voltage24VDC or VAC
SensorReed Switch
Cable Length6 ft (1.8 m)
Materials of Construction
Body**Engineered reinforced plastic (nylon)
InternalEngineered thermoplastic

** 1 1/2" meter may include plastic or lead free brass couplings.

Econ Stennicator Meter System Single

Shipping Weight: 17 lbs (7.7 kg)

Box Dimensions: 24 x 23 x 12 in. (61 x 58 x 30 cm)


Econ Stennicator Meter System Dual

Shipping Weight: 20 lbs (8.8 kg)

Box Dimensions: 24 x 23 x 12 in. (610 x 58 x 30 cm)