Technical Specifications
Operating Principle
Air diaphragm pumps operate with two flexible diaphragms and an air valve system.
Compressed air is directed to one of the diaphragms via the air valve. As one diaphragm moves forward, the fluid is discharged to the outlet line, while the other diaphragm simultaneously moves backward, performing the suction process.
Thanks to the check valve system, flow is controlled in a single direction and the cycle continues continuously by alternating the air direction.
With this operating principle, the following is achieved:
- self-priming operation
- resistance to dry running
- transfer of particle-containing fluids
- adjustable flow rate
- safe chemical transfer
Technical Specifications
Flow Rate Range
- 0.5 m³/h – 60 m³/h
Operating Pressure
- Maximum 8 bar
- Up to 16 bar in heavy-duty models
Maximum Particle Passage
- 1 mm – 10 mm
- (depending on model size)
Viscosity Range
- 1 – 50,000 cP
Operating Temperature
- -10°C / +120°C
- (depending on material type)
Suction Capability (Dry)
- 4 – 6 meters
Connection Sizes
- ½” – 3”
Advantages
- electricity-free operation system
- safe use in explosive environments
- resistance to dry running
- self-priming structure
- suitable for particle-laden fluid transfer
- flow rate adjustable via air pressure
- low maintenance cost
- chemically resistant material options
Design & Material
Air diaphragm pumps are designed with different body and diaphragm materials depending on the chemical structure of the fluid to be transferred and process conditions.
Body Options
- Aluminum
- Cast iron
- AISI 316 Stainless Steel
- PP (Polypropylene)
- PVDF
Diaphragm Materials
- PTFE
- EPDM
- NBR
- Viton (FKM)
- Santoprene
Check Valve Balls / Discs
- PTFE
- Stainless Steel
- Ceramic
- NBR
In pump selection;
- chemical structure of the fluid,
- particle size,
- viscosity,
- air pressure capacity,
- ATEX requirements,
- continuous or intermittent operation
must be taken into consideration. Incorrect material selection may cause diaphragm wear or chemical degradation.
Applications
- Chemical and petrochemical plants
- Paint and coating systems
- Wastewater and sludge transfer
- Ceramic and mining applications
- Fuel transfer systems
- Marine applications
- Food processes
- (With appropriate material selection)
Türkçe