Yamada
Yamada NDP-50BPE-PP — 2" Polypropylene Diaphragm Pump, EPDM Diaphragm
Yamada NDP-50BPE-PP — 2" Polypropylene Diaphragm Pump, EPDM Diaphragm
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The NDP-50BPE-PP covers 2" transfer duty as an air-operated double-diaphragm pump in polypropylene, rated to 164 GPM. It passes solids to 5/16" (8 mm) and handles fluid to 180°F (82°C).
A glass-filled polypropylene wetted path handles dilute acids, alkalis and brines without the galvanic issues a metal body brings, making it the usual pick for chemical transfer and wastewater duty. 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.
The non-metallic center body and glass-filled polypropylene air motor cut weight and remove a corrosion path in wet or chemically aggressive areas. Air drive means no electrics at the pump, seal-less operation with nothing to leak at a shaft, and safe stalling against a closed discharge.
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-50BPE-PP |
| Yamada item no. | 854838 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-50 |
| Port size | 2" |
| Maximum flow | 164 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 5/16" (8 mm) |
| Displacement per cycle | Rubber 1.12 gal (4.25 L) |
| Maximum dry suction lift | 19 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 | Glass-filled polypropylene (non-metallic center body) |
| Air inlet | 3/4” Female NPT |
| Air exhaust | 1” Female NPT |
| Options | Glass-filled polypropylene air motor / non-metallic center body |
| Repair kit | K50-PE |
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