Metal series diaphragm pumps
The compact, smooth and simple design is common for metal series air operated diaphragm pumps. Materials available are aluminium, cast iron, stainless steel and PTFE coated aluminium.
You will discover the ingenious simplicity when you maintain the pump. We use approximately 70% fewer parts than our competitors use to build similar sized pumps.
Aluminium and cast iron pumps
For transfer of pH-neutral fluids, both thin, thick, solid-laden or abrasive. The aluminium and cast iron pumps are found in most fields; workshop and paint industries, purifying plants, to mention only a few.
AISI 316 stainless steel pumps
Made in lost wax cast method, ensuring great accuracy and finish. The stainless steel pumps combine great mechanical strength with good chemical resistance. AISI 316 is resistant to aggressive liquids like nitric acid and sodium hydroxide. The centre unit, which is not in contact with liquid, is made from polypropylene (PP) as standard (other materials upon request).
ATEX certified pumps
All metal pumps are available in explosion proof ATEXmarked version. They are supplied with earth connection and conductive materials; conductive centre section (onAISI 316 pump), diaphragms in PTFE (conductive back) orEPDM (conductive).
|Industry||Example of application|
|Workshop||Oil, fat, solvents, water, |
cooling fluid, lubricants
|Print & paint||Glue, additives, varnish, ink, paint, latex, acid, resins, pigments|
|Mining & construction||Adhesives, sump, dewatering, |
coal sludge, pastes
|Ceramic industry||Abrasives, glaze, water, |
|Chemistry||Acids, alkalis, alcohol, solvents, latex, emulsions|
Aluminium and cast iron for thick and thin pH neutral liquids.
Stainless steel for chemicals.
Material of components
|Pump housing and all thermoplastic details||Aluminium, cast iron or AISI316L|
|Centre block, |
alu and cast iron pumps
|Aluminium (standard) or cast iron|
|Centre block, |
AISI 316 pumps
T25 – T420: PP (standard) or conductive PP
|Diaphragms||NBR, PTFE or EPDM|
|Valve ball||NBR, PTFE, AISI 316L, EPDM, polyurethane or ceramic|
|Air valves||Brass/NBR or optional AISI3161/FKM|
|O-rings||EPDM, NBR or FKM|
|Housing pin screws||Alu and cast iron: steel |
Stainless steel: stainless steel AISI 304
|Diaphragm shaft||Stainless steel AISI 304|
|Drum handle |
|T25-T120: stainless steelAISI 316L |
T220 – T420: –
1. Flexible installations
The connections may be rotated 180°. Simply turn the connections to fit your piping system. Threaded BSP orNPT connections is standard. Twin connections are also available.
2. Powerful valveseats
The valve seat is under constant stress from the movement of the valve ball. To obtain the best wear resistant, the integrated seat is made from AISI 316 stainless steel.
3. Low air consumption
The air distribution system is designed with shortest possible air distribution ways. This eliminates "dead spaces", resulting in high effiencey and low air consumption.