UNITOR AEROFLOW DOUBLE DIAPHRAGM PUMP 1/2 INCH SS
Compact air-operated double diaphragm pump in stainless steel for sampling and fluid transfer onboard vessels. The Unitor Aeroflow 1/2″ SS delivers up to 35 L/min, handles viscous fluids and solids, and is suitable for applications including ballast water, wastewater and chemical sampling.
Description
The Unitor Aeroflow Double Diaphragm Pump 1/2″ SS is a compact and robust air-operated pump designed for demanding marine sampling and fluid transfer applications.
With a maximum flow capacity of 35 litres per minute, the pump can handle fluids with viscosities up to 15,000 CPS and solids up to approximately 3 mm. Its stainless-steel construction makes it suitable for handling a wide range of fluids, including aggressive chemicals.
The pump is self-priming and capable of dry running, making it particularly suitable for portable and permanent installations onboard vessels.
Typical applications
- Ballast water sampling
- Ballast Water Treatment Systems (BWTS)
- Wastewater sampling
- Chemical sampling
- Fluid transfer for testing and analysis
- Marine and industrial fluid transfer
Wilhelmsen specifically highlights the pump for ballast-water treatment monitoring and other onboard sampling applications.
Features & Benefits
- Air operated double diaphragm pump
- Stainless steel construction
- Maximum flow capacity: 35 L/min
- Handles viscosity up to 15,000 CPS
- Self-priming
- Can run dry
- Handles suspended solids
- Compact design for installation in restricted spaces
- Low weight – only 3.8 kg
- Suitable for aggressive chemicals
- No electrical motor required
- ATEX Zone 2 certified
The air-operated design is particularly useful in marine environments where electrical equipment may be undesirable or where operation in potentially explosive atmospheres is required.
Technical Specifications
| Specification | Value |
|---|---|
| Product number | 635620 |
| Product group | 422 |
| Pump type | Air-operated double diaphragm |
| Fluid inlet/outlet | 1/2″ BSP |
| Air inlet | 1/4″ BSP |
| Maximum air pressure | 7 bar |
| Maximum flow | 35 L/min |
| Maximum viscosity | 15,000 CPS |
| Pumpable solid size | 3 mm |
| Suction lift – wet | 9.8 m |
| Suction lift – dry | 5 m |
| Dimensions | 181 × 106 × 192 mm |
| Weight | 3.8 kg |
ATEX
The Unitor Aeroflow 1/2″ SS is ATEX certified for use in potentially explosive atmospheres. Wilhelmsen specifies:
Ex h IIC T4 Gb / Ex h IIIB T135°C Db X
and describes the pump as compliant for ATEX Zone 2 applications.
Accessories and spare parts
Accessories and service kits are available for the pump, including:
- Air barbs – 545070
- Fluid barbs + collar clamps – 545075
- Fluid & air hose kit – 770205
- Fluid service kit – 635653
- Air service kit – 635654
Delivery throughout Norway
Ålesund Supply supplies Unitor Aeroflow pumps and spare parts throughout Norway.
We can arrange delivery to customers in Ålesund, Bergen, Trondheim, Oslo, Stavanger, Kristiansand, Haugesund, Molde, Kristiansund, Bodø and Tromsø, as well as directly to vessels, shipyards and industrial customers throughout Norway.
