Use of SCHMITT Pumps in Water Treatment
Background of the application
In industrial water and wastewater treatment plants, liquids are pumped between tanks, filters, neutralization stages and other process steps. Depending on the application, fluids range from clean process and rinse water to acidic, alkaline or oxidizing solutions with defined solids content.
For safe operation, the pump, material and design must be precisely matched to the application. Important parameters include not only flow rate and head, but also the fluid, concentration, temperature, density, viscosity, particle size, hardness and solids content.
Challenge
Corrosive fluids, changing operating conditions and continuous-duty operation place high demands on hydraulics and materials. Flocs, precipitates and sediment may also occur in neutralization, precipitation or filtration processes. These duties must be clearly distinguished from municipal raw sewage, fibrous media or heavy sludges.
Solution
SCHMITT offers horizontal mag-drive pumps, vertical immersion pumps and self-priming designs for different system layouts. PP, PVDF and stainless steel cover different media and temperature ranges. Magnetically coupled series operate without a dynamic shaft seal.
Our patent-pending NHM plain-bearing solution, together with the MPN in the corresponding SiC/SiC configuration, uses an externally mounted, generously dimensioned design without a plug-in shaft to support defined solids-containing applications. The permissible loading is assessed for the specific fluid. Relevant series are NHM, MPN, T and SMP.
Advantages of SCHMITT Pumps in Water Treatment
PP, PVDF or stainless steel are selected according to the fluid, concentration and temperature.
NHM and MPN operate without dynamic shaft penetration, minimizing the leakage risk.
For the NHM and the MPN in the corresponding SiC/SiC configuration, the externally mounted, generously dimensioned plain-bearing design without a plug-in shaft supports defined solids-containing applications.
The proven SCHMITT sliding-shaft technology used in the relevant series is designed for long service life under normal operating conditions.
The NHM achieves an efficiency of up to 76%, depending on the size and operating point.
Horizontal, vertical, and self-priming designs are suitable for tanks, basins, and pits.
Pumps for Water Treatment and Wastewater Technology (Selection)
- Hermetically sealed, magnetic coupling, PP or PVDF
- Up to 95 °C, flow rate up to 42 m³/h, head up to 27 m
- Up to 76% efficiency: best-in-class energy efficiency
- Sliding shaft technology: wear-free, maintenance-free and durable
- Hermetically sealed by contactless magnetic drive
- Special containment shell geometry for high pressures and temperatures
- Hermetically sealed, magnetic drive, PP or PVDF
- Up to 95 °C, flow rate up to 35 m³/h, head up to 32 m
- Extremely proven pump, used in more than 10,000 applications
- Insensitive to insufficient lubrication and partial dry running due to generously dimensioned plain bearings – no plug-in shaft
- Virtually maintenance-free in normal operation due to generously dimensioned plain bearings
SCHMITT Pumps
Horizontal plastic pumps
Horizontal Stainless-Steel Pumps
