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Double diaphragm air-operated pumps for dosing, spraying, transferring, and distributing a wide range of fluids in applications with low to moderate flow rates. Pump wetted components can be used in corrosive situations and are compatible with even the most aggressive fluids. Polypropylene is used to make the air motor's air chamber covers and directional air valve.
Fluids |
Diluted alkalis, Alcohol, Water based fluids, Coating, Diluted acids, Adhesive |
Maximum wet suction head |
8 m (26 ft) |
Maximum free flow delivery |
50 l/min (14 gal/min) |
Fluid inlet |
1/2" BSPP (F) |
Pressure ratio |
1:1 |
Pump size |
1/2" |
Air pressure operating range |
1.5 - 8 bar (20 - 120 psi) |
Weight |
2.2 kg (4.85 lb) |
Wetted materials |
Polypropylene, PTFE, Santoprene, Stainless steel (AISI 316), Stainless steel |
Air inlet |
3/8" NPSM (F) |
Delivery per cycle |
0.2 l (0.05 gal) |
Maximum dry suction head |
6 m (20 ft) |
Certification |
- |
Solids in suspension maximum size |
3 mm (0.12 ") |
Fluid outlet |
1/2" BSPP (F) |
Product code |
Diaphragms |
Balls |
Seats |
Other wetted materials |
Air motor |
Fluid Path |
DF50PPSVSTHBAS |
Hytrel |
PTFE |
Stainless steel (AISI 316) |
Stainless steel |
Polypropylene |
Polypropylene |
DF50PPYTWTTBAS |
PTFE |
PTFE |
PVDF |
Hastelloy C |
Polypropylene |
Polypropylene |
DF50PPSTSTTBAS |
PTFE |
PTFE |
Stainless steel (AISI 316) |
Stainless steel |
Polypropylene |
Polypropylene |
DF50PDSTSTTBAS |
PTFE |
PTFE |
Stainless steel (AISI 316) |
Stainless steel |
Polypropylene |
Conductive acetal |
DF50PPSESTMBAS |
Santoprene |
PTFE |
Stainless steel (AISI 316) |
Stainless steel |
Polypropylene |
Polypropylene |
DF50PKYTWTTBAS |
PTFE |
PTFE |
PVDF |
Hastelloy C |
Polypropylene |
Conductive PVDF |