For over 50 years, Stenner's time-tested peristaltic chemical injection pump offers consistency.
Self-priming against maximum working pressure, foot valve not required
Can run dry and does not clog from dirt and debris
Can pump off-gassing solutions without losing prime
Reproducible outputs within 2%
Sub-assemblies fit together without tools; easy service or conversion to another model
Pump head universal to all Stenner pumps
Feed rate control from 5%-100% in 2.5% increments
Pump tubes accept a variety of chemicals
If requiring more output than the Classic single head pump offers then the double head pump may be your answer. Similar to the other models in the Classic series, the pump will dose solutions such as sodium hypochlorite, acid, polyphosphates, biocides for common water treatment applications that include disinfection, pH control, corrosion and scale control, oxidation and sanitization. Also utilized in water and wastewater treatment plants, the pump can inject two compatible liquids at the same ratio. The Classic Series double head pump is built the same way as the single head with the addition of another pump head that doubles the output.
This Manually Adjustable pump has a single feed rate control to reduce the pump output of both heads to as low as 5%.
See Downloads tab for model code pdf and see Videos tab for model code video.
How It Works
All Stenner metering pumps have a 3-point roller design in the pump heads, which act as check valves to prevent back flow, siphoning, overdosing and loss of prime. The chemical solution in the pump tubes is captured between the rollers as they rotate and compress the tubes. As the rollers advance, the squeezed tube sections regain their original form and generate a vacuum, creating the self-priming feature that delivers a constant flow unaffected by the outlet pressure.
Stenner's adjustable metering pump is built with three detachable components: the motor, feed rate control, and pump heads. Output is dependent upon three factors: the rpm of the motor gears, the percentage setting on the feed rate control, and the size of the peristaltic pump tubes. The motor shaft rotates at a fixed rpm which drives the adjustable feed rate control to intermittently engage the roller assemblies within the pump heads.
The self-priming peristaltic pump is also referred to as a hose, tube or dosing pump.
Unique Stenner Features
Interchangeable pump heads and tubes to convert one model to another without having to purchase a new pump.
Easy and fast tube replacement without tools with the QuickPro® pump head.