Multiquip Submersible ST3020BCUL 3 Inch Centrifugal Pump 2 HP 170 GPM 230V Single Phase Electric Confined Space Water Dewatering Use

High Volume Electric Drainage with Thermal Overload and Low Level Dewatering Controls

The Multiquip ST3020BCUL 3-Inch Submersible Centrifugal Pump is a heavy-duty drainage system engineered to manage clear water evacuation across confined vaults and open construction sites. Driven by a 2 HP single-phase 230V electric motor, this commercial-grade unit delivers up to 170 GPM of flow capacity while achieving a 72-foot maximum total head lift. The specialized assembly incorporates a cast aluminum housing paired with double mechanical oil-filled seals to maximize structural motor protection and continuously pump fluids down to 1/2-inch floor levels.

Best Used For:

• Confined Space Dewatering: Clearing accumulated groundwater from narrow utility trenches, manholes, and subsurface industrial vaults.
• Flat Surface Drainage: Evacuating thin water layers on commercial concrete pads and basement floors down to 1/2-inch levels.
• Utility Pit Transfer: Managing general drainage inflows and clean effluent removal operations across industrial site reservoirs.

Key Performance & Safety Features

• UL & CUL Listed Motor: The 2 HP single-phase 230V motor integrates an automated internal thermal overload protection framework to protect vital electrical circuits.
• Double Mechanical Seals: Dual oil-filled seals establish a highly resilient protective barrier to prevent water ingress and extend the unit's mechanical lifespan.
• Cast Ductile Iron Impeller: Built with an abrasion-resistant internal rotor layout configured to optimize hydraulic velocity and clean fluid conveyance.
• 50-Foot Molded Cord: Extended power supply reach is backed by an integrated heavy-duty strain relief boot for demanding construction site layouts.

What's Included

• (1) ST3020BCUL 3-Inch Submersible Centrifugal Pump with 50-Foot Power Cable

Technical Specifications

Pro-Tip: Always ensure the pump is fully submerged or has sufficient intake fluid during operation to keep the internal oil-filled mechanical seals cooled. Operating the centrifugal unit completely dry or beyond the 120°F liquid limit can trigger the thermal overload sensor or dry out face seals, altering baseline suction metrics over extended dewatering cycles.