Yamada
Yamada NDP-40BPE — 1-1/2" Polypropylene Diaphragm Pump, EPDM Diaphragm
Yamada NDP-40BPE — 1-1/2" Polypropylene Diaphragm Pump, EPDM Diaphragm
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Yamada builds the NDP-40BPE as a 1-1/2" double-diaphragm pump in polypropylene, capable of 107 GPM. It passes solids to 9/32" (7 mm) and handles fluid to 180°F (82°C).
The glass-filled polypropylene wetted path resists most acids, caustics and salt solutions, which is why plastic-bodied units dominate plating lines, water treatment and chemical dosing. 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.
It self-primes, tolerates running dry, and stalls harmlessly against a closed valve, so it suits batching and intermittent transfer where a centrifugal pump would be a poor fit.
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-40BPE |
| Yamada item no. | 852422 |
| 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 | Polypropylene (PPG) |
| Diaphragm material | Nordel (EPDM) |
| Ball material | Nordel (EPDM) |
| Air motor | Standard |
| Air inlet | 1/2" Female NPT |
| Air exhaust | 1" Female NPT |
| Repair kit | K40-PE |
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