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2" B&S 550 Diaphragm Pump

3.5HP diaphragm pump
Model Number
Riverside DP2B 2 BS 550 Diaphragm Pump

Riverside DP2B

Riverside Pumps' rugged and reliable Diaphragm Pumps are sometimes called "mudhogs" for their ability to pump heavy mud and sludge, thicker than any centrifugal pump can handle. They also have the advantage of being able to run dry without damage, so they are often used to control seepage. Riverside Pumps' Premium Series Diaphragm Pumps feature simple and durable designs proven in decades of reliable service. The DP2 and DP3 Premium Series Diaphragm Pumps feature dependable, rugged designs that are easy to service.

A simple and durable one-piece x-profile pump rod, and a superior fiber core synthetic rubber diaphragm are among the reasons construction professionals choose these pumps. With a rubber diaphragm rather than TPE, you can expect longer life which may tear the TPE. Riverside is the only mud pump with a true rubber diaphragm still.  The DP2 is compact and light, making it the choice of many utility contractors for seepage control. also fits Homelite DP2 111DP2 HDP2. Other 2" trash pumps 

Suction and discharge port size cannot be reduced. Due to positive pumping action of diaphragm pumps, by all mfr's, the discharge is recommended to only be 25FT long unless oversized. Discharge can not be restricted. There is no relief valve.

Brand Change Notice: Homelite is now Riverside. This pumps homelite model number was 111DP2 as the one picture shows, these pumps have been around for decades. 
More Information
Model Number DP2B
Series Engine Powered diaphragm pumps
Max Flow (GPM.) 33
Max Flow GPH 1980
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 2"
Inlet (In.) 2
Outlet Connection Type MNPT
Outlet (In.) 2
Wetted Materials Aluminum
Elastomers / O-ring Buna-Nitrile
Diaphragm Buna-Nitrile
Motor Gas Engine
Self Priming Yes
Suction Lift (FT.) 20
Viscosity SAE 10 oil 88.00 cp 500.00 ssu
Mechanical Seal No
Other Priming @ 25 ft : 36 sec
Drain No
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 92.000000
Warranty (YRS.) 1

Supporting Docs

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