Yamada
Yamada NDP-20BSH — 3/4" Stainless Steel Diaphragm Pump, Hytrel Diaphragm
Yamada NDP-20BSH — 3/4" Stainless Steel Diaphragm Pump, Hytrel Diaphragm
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The Yamada NDP-20BSH is a 3/4" air-operated double-diaphragm pump in stainless steel, rated to 31.7 GPM. It passes solids to 1/16" (2.0 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.
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.
Ordered online, shipped from Texas, priced well and backed by US support before and after the sale. Send us your application details if you want a second opinion on materials.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-20BSH |
| Yamada item no. | 852099 |
| 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 | 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 | 1/4" Female NPT |
| Air exhaust | 3/4" Female NPT |
| Repair kit | K20-MH-1 |
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