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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. This pump is compatible with a wide range of substances, including acids, alkalis, and CIPs chlorinated cleaning chemicals for industrial and domestic cleaning processes as well as water treatment.
Fluids |
Detergent, Alkalis, Acids |
Air inlet |
3/8" NPSM (F) |
Pump size |
1/2" |
Wetted materials |
PVDF, Polypropylene, Hastelloy C, PTFE |
Solids in suspension maximum size |
3 mm (0.12 ") |
Weight |
2.2 kg (4.85 lb) |
Air pressure operating range |
1.5 - 8 bar (20 - 120 psi) |
Pressure ratio |
1:1 |
Certification |
- |
Maximum free flow delivery |
50 l/min (14 gal/min) |
Maximum wet suction head |
8 m (26 ft) |
Fluid inlet |
1/2" BSPP (F) |
Maximum dry suction head |
6 m (20 ft) |
Delivery per cycle |
0.2 l (0.05 gal) |
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 |