Yamada
Yamada NDP-20BAC-D — 3/4" Aluminum Diaphragm Drum Pump, Neoprene Diaphragm
Yamada NDP-20BAC-D — 3/4" Aluminum Diaphragm Drum Pump, Neoprene Diaphragm
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The NDP-20BAC-D is Yamada's 3/4" air-operated double-diaphragm pump in aluminum, with a 31.7 GPM maximum. It passes solids to 1/16" (2.0 mm) and handles fluid to 180°F (82°C).
The aluminum body suits solvents, fuels, oils and paints — the general-industrial fluids where a metal pump is wanted but stainless is more than the job needs. Neoprene diaphragms and balls give balanced service across mild chemicals, oils and water, and are the economical default where nothing aggressive is being moved. Ball check valves are the right choice for flooded-suction installations.
Supplied as a drum-mount package with dip tube and bung adapter. Being air-driven, it needs no motor starter or electrical classification at the pump, self-primes from dry, and can be dead-headed and left stalled under pressure.
Ordered online, shipped from Texas, priced well and backed by US support before and after the sale. Send us your application details if you want a second opinion on materials.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-20BAC-D |
| Yamada item no. | NDP-20BAC-D |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-20 |
| Port size | 3/4" |
| Maximum flow | 31.7 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 1/16" (2.0 mm) |
| Displacement per cycle | Rubber 0.163 gal (615 cc) / PTFE 0.143 gal (539 cc) |
| Maximum dry suction lift | 18 ft |
| Maximum fluid temperature | 180°F (82°C) |
| Check valve type | Ball valve |
| Body / wetted materials | Aluminum (ADC-12) |
| Diaphragm material | Neoprene (CR) |
| Ball material | Neoprene (CR) |
| Air motor | Standard |
| Air inlet | 1/4" Female NPT |
| Air exhaust | 3/4" Female NPT |
| Options | Drum pump |
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