STENNER
Frequently asked questions
Common questions about STENNER from 3G Electric.
What is the reproducibility of Stenner fixed-flow peristaltic metering pumps?
Stenner fixed-flow peristaltic metering pumps, such as the 45MFH1A1SUG1, are specified with a reproducibility of ±2.0%. This figure indicates the repeatability of the pump's output under consistent conditions, including tubing condition and suction/discharge pressures. Reproducibility is distinct from accuracy, which can be affected by factors like tube wear, fluid viscosity, and system backpressure. For critical dosing applications, regular tube replacement and calibration checks are recommended to maintain the stated reproducibility. The ±2.0% value applies to the pump's mechanical performance and does not account for variations in chemical concentration or system design.
What tubing materials are available for Stenner peristaltic pumps, and how do I choose?
Stenner peristaltic pumps are available with tubing in Santoprene, Norprene, and Viton, among other materials. Selection depends on chemical compatibility with the fluid being dosed. Santoprene is commonly used for water treatment chemicals like sodium hypochlorite and has good flex fatigue resistance. Norprene offers extended tube life in some applications and is suitable for many acids and bases. Viton is chosen for aggressive chemicals and higher temperatures. The pump model number often indicates the tubing material; for example, the 45MFH1A1SUG1 uses Santoprene. Always verify compatibility with the chemical manufacturer's recommendations and consider temperature and concentration. Tube replacement intervals vary with material and operating conditions.
What replacement parts does 3G Electric carry for Stenner pumps?
3G Electric stocks a range of Stenner replacement parts, including pump heads, tubes, foot valve and strainer assemblies, power cords, coils, toggle switches, switch boots, and wire connectors. Specific examples include the ST114 and ST138 suction strainers, the MP6B010 power cord, the PM6E001 wire connector, the MP6J115 coil, the MP6C000 switch boot, and the PM6E000 toggle switch. These components are intended for maintenance and repair of compatible Stenner equipment. When ordering, reference the manufacturer part number to ensure the correct fit. 3G Electric's catalog includes 243 Stenner SKUs, covering both complete pumps and spares.
What is the maximum flow rate of the Stenner 45MFH1A1SUG1 pump?
The Stenner 45MFH1A1SUG1 fixed-flow peristaltic metering pump has a maximum flow rate of 3 gallons per day (gpd). It operates on 120V AC and uses a 1/30 hp motor. The pump features Santoprene tubing and provides reproducibility of ±2.0%. This model is part of Stenner's fixed-flow series, meaning the flow rate is set by the motor speed and tube size and is not adjustable during operation. For applications requiring variable flow, Stenner offers adjustable-flow models. The 3 gpd capacity is suitable for low-volume chemical dosing in water treatment and similar processes.
How do Stenner foot valve and strainer assemblies work?
Stenner foot valve and strainer assemblies, such as the ST114 and ST138, are installed at the end of the suction line in a chemical metering system. The strainer portion filters debris from the liquid intake, preventing particulates from entering the pump tube and causing wear or blockage. The foot valve maintains prime by preventing backflow when the pump stops. These assemblies typically have a polypropylene body with internal components made from ceramic, polyethylene, polypropylene, and PVC for corrosion resistance. They are designed for use with compatible Stenner equipment. Regular inspection and cleaning are recommended to maintain flow and prevent clogging, especially in solutions that may crystallize or contain suspended solids.
What electrical components are available for Stenner pump repair?
Stenner electrical repair components available through 3G Electric include replacement power cords (e.g., MP6B010, copper conductors), wire connectors (PM6E001, polypropylene), coils (MP6J115, steel), switch boots (MP6C000, polypropylene), and toggle switches (PM6E000, stainless steel). These parts are designed as direct replacements for compatible Stenner metering pumps and feed systems. The coil, for instance, restores pump operation when the original coil fails. The switch boot shields electrical switches from moisture, dust, and debris. When selecting electrical spares, confirm the manufacturer part number matches your equipment. These components support maintenance in water treatment, chemical dosing, and industrial processes.
