Yamada
Yamada NDP-40BFS-NPT — 1-1/2" Cast Iron Diaphragm Pump, Santoprene Diaphragm
Yamada NDP-40BFS-NPT — 1-1/2" Cast Iron Diaphragm Pump, Santoprene Diaphragm
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The NDP-40BFS-NPT covers 1-1/2" transfer duty as an air-operated double-diaphragm pump in cast iron, rated to 107 GPM. It passes solids to 9/32" (7 mm) and handles fluid to 180°F (82°C).
The cast iron body is built for heavy industrial duty — waste oils, sludges and abrasive slurries where mass and rigidity matter more than corrosion resistance. Santoprene diaphragms and balls offer broad chemical compatibility with a long flex life, and are usually the best value where the duty cycle is heavy. Ball check valves are the right choice for flooded-suction installations.
Supplied with NPT threaded connections. 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.
We ship from Texas, quote honest lead times and price sharply. Tell us the fluid, temperature and flow you need and we will confirm the right configuration before you order.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-40BFS-NPT |
| Yamada item no. | 852875 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-40 |
| Port size | 1-1/2" |
| Maximum flow | 107 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 9/32" (7 mm) |
| Displacement per cycle | Rubber 0.73 gal (2.74 L) |
| Maximum dry suction lift | 18 ft |
| Maximum fluid temperature | 180°F (82°C) |
| Check valve type | Ball valve |
| Body / wetted materials | Cast Iron (FC) |
| Diaphragm material | Santoprene (TPO) |
| Ball material | Santoprene (TPO) |
| Air motor | Standard |
| Air inlet | 1/2" Female NPT |
| Air exhaust | 1" Female NPT |
| Options | NPT connection |
| Repair kit | K40-MS |
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