Yamada
Yamada NDP-25BAN — 1" Aluminum Diaphragm Pump, Buna-N Diaphragm
Yamada NDP-25BAN — 1" Aluminum Diaphragm Pump, Buna-N Diaphragm
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The NDP-25BAN covers 1" transfer duty as an air-operated double-diaphragm pump in aluminum, rated to 46.2 GPM. It passes solids to 1/8" (3 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. Buna-N diaphragms and balls suit petroleum oils, diesel, hydraulic fluid and greases, but should be kept away from ketones and strong oxidizers. Ball check valves are the right choice for flooded-suction installations.
The pump self-primes, handles a degree of entrained air, and holds pressure when stalled, which makes it forgiving on transfer duty that starts and stops.
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-25BAN |
| Yamada item no. | 851528 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-25 |
| Port size | 1" |
| Maximum flow | 46.2 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 1/8" (3 mm) |
| Displacement per cycle | Rubber 0.22 gal (833 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 | Buna-N (NBR) |
| Ball material | Buna-N (NBR) |
| Air motor | Standard |
| Air inlet | 3/8” Female NPT |
| Air exhaust | 3/4” Female NPT |
| Repair kit | K25-MN-1 |
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