Yamada
Yamada NDP-25BPV-PP — 1" Polypropylene Diaphragm Pump, Viton Diaphragm
Yamada NDP-25BPV-PP — 1" Polypropylene Diaphragm Pump, Viton Diaphragm
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This NDP-25BPV-PP is a 1" NDP-25 air-operated diaphragm pump in polypropylene, rated to 46.2 GPM. It passes solids to 1/8" (3 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. 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. 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.
Stocked and shipped from Texas with fast dispatch and competitive pricing. Send over your application details if you want the material selection checked before ordering.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-25BPV-PP |
| Yamada item no. | 854174 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-25 |
| Port size | 1" |
| Maximum flow | 46.2 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 1/8" (3 mm) |
| Displacement per cycle | Rubber 0.22 gal (833 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 | 3/8” Female NPT |
| Air exhaust | 3/4” Female NPT |
| Options | Glass-filled polypropylene air motor / non-metallic center body |
| Repair kit | K25-PV-PP |
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