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Econ LD Series

Accurate low volume injection in compact peristaltic pump


  • 50:1 turndown
  • Enclosed housing
  • Tube replacement without tools
  • Tank System available

Precise Low Volume Injection

The Econ LD is a precise, compact, variable speed, peristaltic pump designed for reliably metering low volume amounts. The quiet, long lasting brushless motor, in a totally enclosed housing, offers premium quality at an economical price. The LD series is adjustable with a potentiometer to control outputs with a 50:1 turndown.  The outputs range from 0.04 to 50.7 ounces per hour, with pressures to 80 psi (1.3 to 1499.4 ml/hr, pressures to 5.5 bar). The pump is also offered in 24VDC for installations where standard voltage is unavailable.

Ideal for pumping flocculants, coagulants, sanitizers, and a variety of solutions. Markets and applications include but are not limited to injecting anti-scalants for reverse osmosis systems, flocculants for pools as a filter aid, reagents for specialty applications or additives for industrial processing.


  • Patented Quick Release Pump Head for tube replacement without tools. VIEW VIDEO
  • Solid one piece tube construction
  • Attach the pump to a wall or select from optional mounting accessories

Advantages of Stenner Peristaltic Pumps

  • Solution is not in contact with moving parts
  • Pump head requires no valves, allows for easy maintenance
  • Self-priming against maximum working pressure, foot valve not required
  • Self-priming to 25 feet
  • Pump does not lose prime or vapor lock
  • Pumps off-gassing solutions and can run dry
  • Output volume is not affected by back pressure

Econ Pump General Installation Video
Econ Pump Tube Replacement Video

Flow Rate Outputs

Flow Rate Outputs – 80 psi (5.5 bar) maximum
Pump Tube Roller Assembly Turndown
per Hour
per Hour
Approximate Maximum Output @ 50/60Hz
E10LHM M White 50:1 0.04 – 2.4 1.3 – 70.0
E10LHF F White 50:1 0.11 – 8.1 3.2 – 240.0
E10LHG G Black 50:1 0.50 – 25.1 14.8 – 742.3
E10LHH H Black 50:1 1.01 – 50.7 29.7 – 1499.4
NOTICE: The information within the charts above 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

Technical Data

Flow Rate Output Control Potentiometer, 50:1 Turndown
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
Shaft rpm (average maximum) 17
Duty Cycle Continuous
Maximum Viscosity 50 Centipoise
Motor Voltage 120V 60Hz(0.25A); 230V 60Hz(0.17A); 230V 50Hz (10W), 24VDC (0.5A)
Power Cord Type 120V 60Hz, 230V 60Hz: SJTOW, 230V 50Hz: H05RN-F, 24VDC pigtail
Power Cord Plug End 120V 60Hz: NEMA 5-15P,  230V 60Hz: NEMA 6-15P,                                                           230V 50Hz: CEE7/7, 24VDC pigtail
Power Cord Length 6 ft (1.8 m) or 24VDC Pigtail 1 ft (30.5 cm)
Classification Indoor/outdoor


Materials of Construction
All Housings Polycarbonate
Pump Tube & Check Valve Duckbill Santoprene®* (FDA approved)
Pump Head Rollers Polyethylene
Suction/Discharge Tubing
and Ferrules
Polyethylene (FDA approved)
Tube and Injection Fittings PVC or Polypropylene (both NSF listed)
Connecting Nuts PVC or Polypropylene (both NSF listed)
Suction Line Strainer and Cap PVC or Polypropylene (both NSF listed); ceramic weight
All Fasteners Stainless Steel

* Santoprene® is a registered trademark of Celanese International Corporation.


Agency Listings

Listings vary by model.


Pump Dimensions

Box Dimensions

8 x 8 x 10 in. (21 x 21 x 25 cm)

Shipping Weight

4 lbs (1.6 kg)


Dimensions & weight

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