Yamada
Yamada NDP-50BPH-PP — 2" Polypropylene Diaphragm Pump, Hytrel Diaphragm
Yamada NDP-50BPH-PP — 2" Polypropylene Diaphragm Pump, Hytrel Diaphragm
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The NDP-50BPH-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).
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. Hytrel diaphragms and balls carry the highest temperature rating in the range and resist abrasion well, which suits hot oils and particulate-bearing fluids. 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. 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.
Shipped from Texas with short lead times and strong pricing. If you are unsure which build fits your fluid, send us the application details and we will point you at the right part number.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-50BPH-PP |
| Yamada item no. | 854841 |
| 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 | Hytrel (TPE) |
| Ball material | Hytrel (TPE) |
| 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-PH |
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