Yamada
Yamada NDP-25BVW-PN-FLANGE — 1" Kynar PVDF Diaphragm Pump, Ultimate Diaphragm
Yamada NDP-25BVW-PN-FLANGE — 1" Kynar PVDF Diaphragm Pump, Ultimate Diaphragm
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Yamada's NDP-25BVW-PN-FLANGE is a 1" AODD pump in kynar pvdf, moving up to 46.2 GPM. It passes solids to 1/8" (3 mm) and handles fluid to 212°F (100°C).
The Kynar PVDF wetted path is specified for concentrated sulfuric, hydrochloric and nitric service, and for hot chemicals beyond what polypropylene tolerates. Yamada's Ultimate two-piece diaphragm pairs a PTFE wetted face with an elastomer backer, giving PTFE chemical resistance with markedly longer flex life than solid PTFE. Ball check valves are the right choice for flooded-suction installations.
Fitted with flanged manifolds rather than threaded connections. It runs on plant air with no electrical supply at the pump, self-primes, and will sit stalled against a closed discharge without damage — useful on intermittent or dead-headed duty.
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-25BVW-PN-FLANGE |
| Yamada item no. | 855258 |
| 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 | 212°F (100°C) |
| Check valve type | Ball valve |
| Body / wetted materials | Kynar (PVDF) |
| Diaphragm material | Ultimate |
| Ball material | Ultimate |
| Air motor | Standard |
| Air inlet | 3/8” Female NPT |
| Air exhaust | 3/4” Female NPT |
| Options | Glass-filled polypropylene air motor (Kynar); Flanged manifold |
| Repair kit | K25-VW-PP |
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