Davey DT37G Cast Iron High-Head Discharge Submersible Grinder Pump for Black Water with Open Impeller

The Davey DT37G is the ultimate high-head sewage grinder for large-scale industrial complexes, combining massive 3.7 kW power with extreme material durability. This powerful three-phase 415v unit is equipped with a high-performance motor designed to move waste water through massive elevations up to 35 metres. By addressing the environmental demands of large-scale water accumulation and sewage disposal, the pump ensures structural protection through high-capacity fluid removal. The system effectively manages black and grey water by shredding all soft solids into a free-flowing slurry.

Generating massive hydraulic force, this model achieves a maximum total head of 35 metres and a maximum flow rate of 324 L/Min. The motor operates with a rated run current of 7.9 Amps, ensuring efficient energy use during prolonged discharge cycles in deep industrial pits. This performance profile is engineered to provide the necessary torque for consistent behavior when processing textiles and sanitary products in high-volume settings. The high volumetric throughput is managed through the 2" BSP F outlet port, ensuring rapid evacuation from commercial sites.

Hydraulic efficiency is centered on a cast iron open impeller and a high chromium steel grinding mechanism that facilitates the passage of macerated solids. This design handles liquids containing soft solids in suspension, preventing the accumulation of sediment that could compromise volumetric efficiency over long-term service. By utilizing a centrifugal flow path, the unit minimizes internal friction and vibration, extending the functional life of the 3.7 kW rotating assembly. This configuration is essential for industrial sewage disposal in pressurized discharge systems.

Structural longevity is provided by a 304 stainless steel motor shell and heavy-duty powder-coated cast iron pump components. Motor security is maintained by a double mechanical shaft seal in an oil bath and an internal thermal overload with automatic reset. For secure industrial deployment, the pump includes a 10-metre HO7RN-F oil-resistant lead and seal sensor leads for professional termination. The architectural casting features integrated stable mounting feet and a heavy-duty lifting handle for secure manipulation in deep pits.

FEATURES

• Extreme 3.7 kW three-phase motor provides a massive 35m head for high-elevation industrial discharge.
• High chromium steel shredder and grinding ring effectively macerate tough textiles and organic solids.
• Double mechanical shaft seal in an oil bath with silicon carbide faces ensures maximum motor protection.
• Open centrifugal impeller design allows for the efficient passage of slurry without hydraulic clogging.
• Corrosive resistant 304 stainless steel motor shell and fasteners for extreme industrial longevity.
• Integrated seal sensor leads allow for connection to a protection relay for proactive maintenance.
• HO7RN-F 10 metre oil-resistant power lead designed for safe industrial three-phase termination.