Yamada
Yamada NDP-20BPV-PP-FLANGE — 3/4" Polypropylene Diaphragm Pump, Viton Diaphragm
Yamada NDP-20BPV-PP-FLANGE — 3/4" Polypropylene Diaphragm Pump, Viton Diaphragm
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Yamada's NDP-20BPV-PP-FLANGE is a 3/4" AODD pump in polypropylene, moving up to 31.7 GPM. It passes solids to 1/16" (2.0 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. 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. Fitted with flanged manifolds rather than threaded connections. 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.
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-20BPV-PP-FLANGE |
| Yamada item no. | 854111 |
| 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; Flanged manifold |
| Repair kit | K20-PV-PP |
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