Versatile
Adjustable
Self-Regulating
Air Distribution System
SAMOA Pivot Series Universal Pump (UP) combines the innovative concept of a superior Air Distribution System (Central Body, Air Covers, Air Valve and Pilot Sensors) with an enhanced Universal Air Operated Double Diaphragm Pump design.
The exclusive Air Distribution System (ADS) incorporates an innovative Pivot-Shaft together with the “Smooth-Start-Shifter” (3S) actuator (patented). It provides reliable operation, even with very reduced air pressure and / or reduced air flow.
Additionally, the ADS design prevents freezing and delivers higher and smoother flow with reduced air consumption when compared to competitive AODD Pumps. Thanks to its modular concept, SAMOA ADS is very simple to clean and to maintain.

Left Pilot Sensor (closed)
Directs compressed air from the air inlet (red) towards the left air chamber, which moves the diaphragm to the Fluid Discharge Stroke.

Right Pilot Sensor (open)
When the opposite diaphragm (right) has completed a Suction Stroke, it activates the pilot sensor, which sends an instant pneumatic signal to the air side Pivot-Valve pad. This changes the Pivot-Valve position, changing thepump stroke direction, filling the right chamber with air while exhausting the air from the left chamber.


Working Principle
SAMOA Pivot Universal Pumps (UP) are air operated double diaphragm positive displacement pumps. They have two pumping sections and each side has a liquid and air chamber that are divided by a diaphragm. The diaphragms are connected to a shaft and during one pumping stroke, the fluid (blue) is suctioned into one liquid chamber, while simultaneously the fluid in the opposite liquid chamber (red) is discharged.


- Innovative ADS: Reliable operation with patented Pivot-Shaft and 3S actuator.
- No Stalling/Freezing: Prevents pump stalling and freezing with efficient air exhaust.
- Smooth Flow: Reduced vibration and improved efficiency.
- Easy Maintenance: Modular design with fewer parts for quick servicing.
- Durable Air Valve: Lightweight, frictionless, and easy to replace.
- Efficient Performance: Higher flow rates with reduced air consumption.

UP03 – Non-Metallic Pump, 3/8” (9,5 mm)
- Max Flow Rate: 31 LPM
- Max Solid Size: 1,6 mm (1/16”)
- Suction Lift: Dry: 3 m (10’), Wet: 7 m (23’)
- Air Pressure Range: 1,5 to 7 bar (20 to 100 psi)

UP05 – Non-Metallic Pump, 1/2” (13 mm)
- Max Flow Rate: 51 LPM
- Max Solid Size: 2,5 mm (3/32”)
- Suction Lift: Dry: 5 m (16’), Wet: 8 m (26’)
- Air Pressure Range: 1,5 to 7 bar (20 to 100 psi)

UP05 -Metallic Pump, 1/2” (13 mm)
- Max Flow Rate: 54 LPM
- Max Solid Size: 2,5 mm (3/32”)
- Suction Lift: Dry: 5 m (16’), Wet: 8 m (26’)
- Air Pressure Range: 1,5 to 8 bar (20 to 120 psi)

UP10 – Non-Metallic, 1” (25 mm)
- Max Flow Rate: 200 LPM
- Max Solid Size: 6,4 mm (1/4”)
- Suction Lift: Dry: 5 m (16’), Wet: 8 m (26’)
- Air Pressure Range: 1,5 to 7 bar (20 to 100 psi)

UP10 – Metallic, 1” (25 mm)
- Max Flow Rate: 200 LPM
- Max Solid Size: 6,4 mm (1/4”)
- Suction Lift: Dry: 5 m (16’), Wet: 8 m (26’)
- Air Pressure Range: 1,5 to 8 bar (20 to 120 psi)

UP20 – Non-Metallic, 2” (51 mm)
- Max Flow Rate: 650 LPM
- Max Solid Size: 6,4 mm (1/4”)
- Suction Lift: Dry: 5 m (16’), Wet: 8 m (26’)
- Air Pressure Range: 1,5 to 7 bar (20 to 100 psi)

UP20 – Metallic, 2” (51 mm)
- Max Flow Rate: 650 LPM
- Max Solid Size: 6,4 mm (1/4”)
- Suction Lift: Dry: 5 m (16’), Wet: 8 m (26’)
- Air Pressure Range: 1,5 to 8 bar (20 to 120 psi)

UP30 – Metallic, 3” (76 mm)
- Max Flow Rate: 1000 LPM
- Max Solid Size: 12,7 mm (1/2″)
- Suction Lift: Dry: 6 m (19.7′), Wet: 8 m (26′)
- Air Pressure Range: 1,5 to 8 bar (20 to 120 psi)