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3 in. 3.5 hp briggs diaphragm pump

Model Number
DP3B
$1,938.00
Riverside DP3B 3 in. 3.5 hp briggs diaphragm pump

Riverside DP3B

Premium Series Diaphragm Pump

Riverside Pumps’ rugged and reliable diaphragm pumps, often called “mudhogs”, are built to handle heavy mud and sludge thicker than any centrifugal pump can manage. Designed for tough jobs, they can also run dry without damage, making them ideal for seepage control.

The Riverside DP2 and DP3 Premium Series Diaphragm Pumps are known for their dependable, durable construction and easy serviceability, proven through decades of reliable use. Key features include:

  • One-piece x-profile pump rod for strength and longevity
  • Superior fibercore synthetic rubber diaphragm for enhanced durability
  • Rubber diaphragm construction (instead of TPE) for longer life and resistance to tearing – Riverside is the only mud pump manufacturer still using a true rubber diaphragm

The DP2 is compact and lightweight, making it the preferred choice of many utility contractors for seepage control.

Compatibility: Also fits Homelite DP3, 111DP3, and HDP3.



What is a diaphragm pump? Diaphragm pumps are positive displacement pumps. They pump aspecific volume for each pump cycle. Diaphragm pumps move fluidsmore slowly than centrifugal pumps, but can handle mud andlarger amounts of solids including abrasive materials. They also tolerateair being drawn into the pump, and can be run dry withoutdamage. Diaphragm pumps are widely used on construction sitesto control seepage in excavations, and for pumping septic systemsand operating well point systems
Brand Change Notice: Homelite is now Riverside. This pumps homelite model number was 111DP3 as the one picture shows, these pumps have been around for decades.

Replacement diaphragm is 03438, also fits Homelite DP3

More Information
Model Number DP3B
Series Engine Powered diaphragm pumps
Max Flow (GPM.) 80
Max Flow GPH 4800
TDH Maximum (Ft) 50
TDH Maximum (PSI) 22
Horse Power (HP) 3 1/2
Horsepower (IE .5, 1, 1.5, 20) 3.5000
Inlet Connection Type MNPT
inlet size 3"
Inlet (In.) 3
Outlet Connection Type MNPT
Outlet (In.) 3
Wetted Materials Aluminum
Motor Gas Engine
Self Priming Yes
Suction Lift (FT.) 20
Viscosity SAE 10 oil 88.00 cp 500.00 ssu
Mechanical Seal No
Mechanical Seal Type Double
Other Priming @ 25 ft : 61 sec
Drain Yes
Port Rotation Yes
Weight (Lbs) 26.000000
Warranty (YRS.) 1

Supporting Docs

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