Air Operated Double Diaphragm Pumps

Leading Air Operated Double Diaphragm Pump In Malaysia

When it comes to air-operated double diaphragm pumps (AODD), we offer a diverse selection at competitive prices without compromising quality. As the leading AODD pump supplier in Malaysia, our products meet high standards. So how does AODD work?

The air operated double diaphragm pump is a type of positive displacement pump that draws fluid into the inlet side of one or more pistons, where it is compressed and pushed out through the outlet side. The inlet and outlet ports are separated by a diaphragm. As the diaphragm moves outward, it creates an area of low pressure on its outer side, drawing fluid into the pump chamber. As this area expands, so does its volume. The air operated double diaphragm pump uses compressed air to actuate these pistons.

The diaphragm seals against a surface called a sealing face or seat, which can be made from various materials including metal and plastic. The chamber wall may also be made from a variety of materials, but should be able to withstand high temperatures and pressures without becoming brittle over time.

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Versatile

Flexible installation where pump can be installed with negative or positive suction and even submerged.

Adjustable

Flowrate is adjustable easily with regulator as compressed air is used to drive the pump.

Self-Regulating

Pump can stop running by itself if it has a closed discharge or a shut off valve situation.

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)
What is an AODD pump?

An AODD pump (Air Operated Double Diaphragm pump) is a positive displacement pump that is operated by compressed air to propel fluids through the means of two elastic diaphragms

AODD pumps may be operated in a dry condition safely without harm and thus are ideal for unloading and transfer operations.

Yes, AODD pumps have a very basic design with minimal moving parts, and they are easy to maintain and repair.

Most AODD pumps run at 100 psi (7 bar) but there are models that can handle higher pressures.

AODD pumps come in materials such as aluminum, stainless steel, polypropylene, and PVDF for a range of chemicals and liquids.

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Malaysia

Thermac Engineering Sdn Bhd (969201-P)
26 & 26A, Jalan Permata 8/KS9, Taman Perindustrian Air Hitam 41200 Klang, Selangor, Malaysia.

Singapore

Thermac Heat Exchangers Singapore Pte Ltd (201608379G)
1003 Bt Merah Central #06-23 Singapore 159836.

  • +65 8782 5594
  • sales@thermacgroup.com

Thailand

Thermac Engineering Thailand Co. Ltd (0-1055-59041-77-6)
No. 7 Soi Suan Siam 2, Soi 4, Kannayao Bangkok 10230, Thailand.

  • +66 81 902 1373
  • sales@thermacgroup.com

Copyright 2023 THERMAC ENGINEERING SDN BHD. (969201-P) All Rights Reserved.

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