Yamada
Yamada NDP-40BFE-NPT — 1-1/2" Cast Iron Diaphragm Pump, EPDM Diaphragm
Yamada NDP-40BFE-NPT — 1-1/2" Cast Iron Diaphragm Pump, EPDM Diaphragm
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The NDP-40BFE-NPT is Yamada's 1-1/2" air-operated double-diaphragm pump in cast iron, with a 107 GPM maximum. It passes solids to 9/32" (7 mm) and handles fluid to 212°F (100°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. EPDM diaphragms and balls handle acids, caustics, ketones and alcohols well — but not petroleum products, which swell the elastomer. Ball check valves are the right choice for flooded-suction installations.
Supplied with NPT threaded connections. 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.
Texas-based, with short lead times and pricing that reflects our supply position. Not sure this is the right build? Send us the fluid and duty and we will confirm.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-40BFE-NPT |
| Yamada item no. | 852874 |
| 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 | 212°F (100°C) |
| Check valve type | Ball valve |
| Body / wetted materials | Cast Iron (FC) |
| Diaphragm material | Nordel (EPDM) |
| Ball material | Nordel (EPDM) |
| Air motor | Standard |
| Air inlet | 1/2" Female NPT |
| Air exhaust | 1" Female NPT |
| Options | NPT connection |
| Repair kit | K40-ME |
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