Yamada
Yamada NDP-20BPV-PP-D — 3/4" Polypropylene Diaphragm Drum Pump, Viton Diaphragm
Yamada NDP-20BPV-PP-D — 3/4" Polypropylene Diaphragm Drum Pump, Viton Diaphragm
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The NDP-20BPV-PP-D covers 3/4" transfer duty as an air-operated double-diaphragm pump in polypropylene, rated to 31.7 GPM. It passes solids to 1/16" (2.0 mm) and handles fluid to 180°F (82°C).
Polypropylene construction gives broad resistance to inorganic acids and caustics at a lower cost than fluoropolymer, and it stays inert in the salt and chlorine service that corrodes metal pumps. Viton diaphragms and balls are chosen for aggressive chemicals and hot fluids — aromatic solvents, chlorinated hydrocarbons and concentrated acids. 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. Supplied as a drum-mount package with dip tube and bung adapter. 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.
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-20BPV-PP-D |
| Yamada item no. | NDP-20BPV-PP-D |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-20 |
| Port size | 3/4" |
| Maximum flow | 31.7 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 1/16" (2.0 mm) |
| Displacement per cycle | Rubber 0.163 gal (615 cc) / PTFE 0.143 gal (539 cc) |
| 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 | Viton (FKM) |
| Ball material | Viton (FKM) |
| Air motor | Glass-filled polypropylene (non-metallic center body) |
| Air inlet | 1/4" Female NPT |
| Air exhaust | 3/4" Female NPT |
| Options | Glass-filled polypropylene air motor / non-metallic center body; Drum pump |
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