DRY-PIT HORIZONTAL SOLIDS HANDLING PUMP

The United Flo Dry Pit HBB Pump is part of our exclusive drop-in replacement line, engineered for seamless integration with existing systems. This high-performance, non-clog horizontal centrifugal pump excels in solids handling for wastewater applications, offering unmatched reliability, efficiency, and durability. With advanced hydraulics and a best-in-class bearing design, it delivers outstanding performance, even in low-suction-pressure environments. Whether you’re upgrading or replacing legacy pumps, our Dry Pit HBB Pump ensures a smooth transition without the need to modify external mounting, piping, or electrical systems.

​

Key features include:

• Horizontal orientation for dry pit installations.

• Superior solids-handling capability for tough wastewater challenges.

• Suction port range from 4” to 54” to handle various flow requirements.

• Industry-leading NPSHR for optimal performance in low-suction-pressure settings.

• More efficient hydraulics for enhanced performance and energy savings.

• Improved non-clog design to tackle clogging issues.

• Best-in-class bearing arrangement for extended pump life.

• Dimensionally and hydraulically interchangeable with legacy pumps, making it an ideal drop-in replacement.

• Multiple configurations available, including horizontal (HBB), vertical pedestal mount, vertical turbine, and vertical open shaft (VOS).

• Designed with CFD and CFX technologies to optimize hydraulic performance.

​

Proudly U.S.-owned and operated, United Flo offers innovative, reliable, and cost-effective pump solutions—ensuring superior performance for your wastewater needs.

​

Tech Specs

​

Design Type:
Horizontal End-Suction, Dry Pit Mounted, Single-Stage Non-Clog Centrifugal Pump

​

Flow Capacity:
Application-specific, based on suction size and impeller trim (available from 4" to 54" suction)

​

Total Dynamic Head (TDH):
10 – 110 feet (typical range depending on configuration)

 

Solids Handling:
Passes solids up to 6" diameter (model dependent)

​

Operating Speed:
900 – 1800 RPM

​

Hydraulics:
CFD/CFX-optimized non-clog impeller profiles for improved efficiency and solids throughput

​

NPSHr Performance:
Low Net Positive Suction Head Required (NPSHR) to support challenging suction conditions

​

Mounting Configuration:
Horizontal dry pit installation with no changes to external piping, electrical, or baseplate — true drop-in replacement

​

Bearings:
Best-in-class radial and thrust bearing configuration for maximum shaft support and extended life

​

Seal Arrangement:
Available with single, double, or split mechanical seals
Seal water optional (based on site requirements)

​

Materials of Construction:

• Impeller & Volute: Cast Iron Class 30/40 or optional stainless steel

• Shafting: 416 or 17-4PH stainless steel

• Wear Components: Replaceable wear rings and bushings available in bronze, SS, or hardened alloys​

 

Installation:
Fully dimensionally and hydraulically interchangeable with legacy dry pit horizontal solids-handling pumps

​

Typical Applications:

• Wastewater Treatment Facilities

• Municipal Lift Stations

• Sludge Transfer Systems

• Industrial Wastewater and Process Water