ALMATEC manufactures a range of air-operated double diaphragm pumps with a wide range of products, like the Chemicor Series.
Almatec Chemicor-series AOD Pumps Features
- three sizes:
- AD 20,
- AD 32,
- AD 50
- max. capacities 4.5 / 9 / 24 m3/h
- wetted housing parts made of stainless steel precision casting 1.4408 (also polished available)
- special shape of the product chambers
- pump casing with only two joint faces
- freely turnable suction and discharge ports
- ball valves for liquids containing solids
- maintenance-free air control system PERSWING P® without dead center
- composite diaphragms with integrated metal core and no diaphragm discs
- proof against dry running and overloading
- self-priming
- gentle displacement
- can be infinitely controlled via the air volume
- no drives, no rotating parts, no shaft seals
- unattended operation with long service life
- compact design
- easy to start up
- integrated muffler
- optional features meeting requirements
- pulsation damper
- back flushing system
- barrier chamber system
- diaphragm monitor
- stroke counting
- center block made of PE conductive (ATEX conformity)
- special ports for sanitary connections
Construction and Materials
Stainless steel 1.4408 (G-X 6 CrNiMo 18 10) is a cast steel which is resistant to corrosion and acids and which is frequently used for fittings and pump casings because of its good general chemical stability. This material in a precision lost-wax casting is used for the wetted housing parts of the CHEMICOR series. The lost-wax process is a complex casting process yielding a smooth and dense surface with increased resistance to corrosion. The housing parts are additionally glass-bead blasted and pickled. The polished version is subjected to three additional machining stages, namely grinding, mechanical polishing and electrolytic polishing.
Cast polyamide PA 6 G is used for the center blocks. It displays very good mechanical strength and can withstand temperatures up to 130°C.
The materials PTFE and EPDM are used for ball valves and diaphragms of the ALMATEC metal pumps.
Chemical Resistance
| 1.4408 | PTFE | EPDM | |
|---|---|---|---|
| water | + | + | + |
| mineral oil | + | + | – |
| vegetable, animal fats | + | + | – |
| aliphatic | + | + | – |
| aromatic | + | + | – |
| halogenated | + | + | – |
| chlorinated | + | + | – |
| alcohols | + | + | 0 |
| ketones | + | + | + |
| esters | + | + | + |
| acids, diluted | 0 | + | + |
| acids, concentrated | 0 | + | + |
| alkalis, diluted | 0 | + | + |
| alkalis, concentrated | 0 | + | + |
| salts | 0 | + | + |
+ = resistant
0 = fairly resistant
– = not resistant
all entries are merely intended for guidance!
Technical Data
| AD 20 | AD 32 | AD 50 | |
|---|---|---|---|
| Dimensions (mm) | |||
| length | 154 | 203 | 278 |
| width | 150 | 200 | 270 |
| height | 241 | 325 | 450 |
| Nominal port size | R 3/4 | R 1 1/4 | R 2 |
| Air connection | R 1/4 | R 1/4 | R 1/2 |
| Weight (kg) | 6 | 13 | 29 |
| Max. particle size of solids (mm) | 9 | 12 | 14 |
| Suction lift, dry (mWC) | |||
| EPDM ball valves | 2 | 2 | 3 |
| PTFE ball valves | 1 | 1,5 | 2 |
| Suction lift, wet (mWC) | 9 | 9 | 9 |
| Max. operating temperature (°C) | 130 | 130 | 130 |
| Max. operating temperature (°C) with center block of PE conductive | 80 | 80 | 80 |
Almatec Chemicor Spare Parts
All Pumps stock a wide range of Almatec Chemicor spares, including spare parts kits.
The Almatec spares we stock include:
- Air Valves
- Balls
- Bushings
- Capillary Rod Assembly
- Check Body
- Clamp Bands
- Diaphragms
- End Caps
- End Cap O-Rings
- Expanded PTFE Kits
- Fluid Section Repair Kits
- Gaskets
- Mufflers
- O-Rings
- Oil Bottles
- Pipe Bushing
- Pistons
- Retaining Rings
- Screens
- Shafts
- Valve Balls
- Seats
