Yamada
Yamada NDP-500BSH-NPT — 2" Stainless Steel Diaphragm Pump, Hytrel Diaphragm
Yamada NDP-500BSH-NPT — 2" Stainless Steel Diaphragm Pump, Hytrel Diaphragm
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Yamada's NDP-500BSH-NPT is a 2" AODD pump in stainless steel, moving up to 226 GPM. It passes solids to 5/16" (8 mm) and handles fluid to 248°F (120°C).
316 stainless construction is specified where corrosion resistance and cleanability both matter — dairy, brewing, fine chemicals and pharmaceutical transfer. 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.
Supplied with NPT 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.
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-500BSH-NPT |
| Yamada item no. | 855402 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-500 |
| Port size | 2" |
| Maximum flow | 226 GPM |
| Air supply pressure | 20-125 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 5/16" (8 mm) |
| Displacement per cycle | Rubber 1.14 gal / Thermoplastic 1.22 gal / PTFE 0.70 gal |
| Maximum dry suction lift | 18 ft |
| Maximum fluid temperature | 248°F (120°C) |
| Check valve type | Ball valve |
| Body / wetted materials | Stainless Steel (316) |
| Diaphragm material | Hytrel (TPE) |
| Ball material | Hytrel (TPE) |
| Air motor | Standard |
| Air inlet | 3/4” Female NPT |
| Air exhaust | 1” Female NPT |
| Options | NPT connection |
| Repair kit | K50-MH |
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