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Samoa DirectFlo Central Flow Diaphragm Pump Technology

Equipped with Frictionless Pivot Valve Technology
Provides fast reciprocal action, minimizing flow pulsation and pump vibration. Contributes to reduce air consumption.
Center Flow Design
Has no manifolds. Reduced internal pressure loss for improved performance.
Small & Compact
Smaller overall size produces equivalent to higher flow rates than competitive models.
Flexible Installation
Ball guides allow DF models to be installed in horizontal and vertical positions, without any loss in flow or suction.
Can Be Repaired In-Line
Easy, quick and cost saving
Flow Rate Range 
DirectFlo Pumps range from a minimum of 5 US GAL/MIN (20 L/MIN) to a max of 66 US GAL/MIN (250 L/MIN) at maximum free delivery rate.
Samoa DirectFlo Technology How It Works Samoa DirectFlo Technology How It Works

Samoa 1:1 DirectFlo Diaphragm Pump Selection

DC20 1:1 Ratio - 1/4" Pump

- Plastic Body

- 0.016 US Gal Per Cycle

- 23' Max Wet Suction Lift

- 1/4" NPT/BSP (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DC20 Page

DF30 1:1 Ratio - 1/2" Pump

- Plastic Body

- 0.04 US Gal Per Cycle

- 26' Max Wet Suction Lift

- 1/2" NPT/BSP (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DC30 Page

DF50 1:1 Ratio - 1/2" Pump

- Plastic Body

- 0.05 US Gal Per Cycle

- 26' Max Wet Suction Lift

- 1/2" NPT/BSP (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DF50 Page

DF50 1:1 Ratio - 1/2" Pump

- Metal Body

- 0.05 US Gal Per Cycle

- 26' Max Wet Suction Lift

- 1/2" NPT/BSP (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DF50 Page

DF100 1:1 - 1" Pump

- Plastic Body

- 0.13 US Gal Per Cycle

- 23' Max Wet Suction Lift

- 1" NPT/BSP (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DF100 Page

DF100 1:1 Ratio - 1" Pump

- Metal Body

- 0.13 US Gal Per Cycle

- 23' Max Wet Suction Lift

- 1" NPT/BSP (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DF100 Page

DP200 1:1 Ratio - 1" Pump

- Plastic Body

- 0.26 US Gal Per Cycle

- 26' Max Wet Suction Lift

- 1" Flange (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DP200 Page

DP200 1:1 Ratio - 1" Pump

- Metal Body

- 0.26 US Gal Per Cycle

- 26' Max Wet Suction Lift

- 1" NPT/BSP (F) Fluid Inlet/Outlet

- 3/8" NPSM (F) Air Inlet

Visit DP200 Page

DF250 1:1 Ratio - 1-1/2" Pump

- Metal Body

- 0.32 US Gal Per Cycle

- 26' Max Wet Suction Lift

- 1-1/2" (F) or Flange Fluid Inlet/Outlet

- 1/2" NPSM (F) Air Inlet

Visit DF250 Page
Samoa Directflo Pump Material Components List Samoa Directflo Pump Material Components List
Samoa Overmolded Diaphragms

Overmolded Diaphragms

Overmolded Diaghragms come STANDARD on all Samoa 1:1 DC/DF/DP Series of Pumps. Which allows your pump to run much longer and cleaner than standard diaphragms.

Samoa Frictionless Pivot Valve Inside View

Frictionless Pivot Valve

The Frictionless Pivot Valve provides fast reciprocal action, minimizing flow pulsation and pump vibration. It contributes to reduced air consumption.

Samoa Push Rod PTFE Bushing Assembly Inside View

Push Rod PTFE Bushing

The DirectFlo Technology is a unique design where your fluids run through the center of the pump vs the outside. This Push Rod connects the diaphragms and seals the pump.