Yamada
Yamada NDP-20BSE-PP — 3/4" Stainless Steel Diaphragm Pump, EPDM Diaphragm
Yamada NDP-20BSE-PP — 3/4" Stainless Steel Diaphragm Pump, EPDM Diaphragm
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The Yamada NDP-20BSE-PP 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 212°F (100°C).
316 stainless wetted parts take the aggressive chemicals and elevated-temperature service that aluminum cannot, and clean up for food, beverage and pharmaceutical work. EPDM diaphragms and balls handle acids, caustics, ketones and alcohols well — but not petroleum products, which swell the elastomer. 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. The pump self-primes, handles a degree of entrained air, and holds pressure when stalled, which makes it forgiving on transfer duty that starts and stops.
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-20BSE-PP |
| Yamada item no. | 854075 |
| 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 | 212°F (100°C) |
| Check valve type | Ball valve |
| Body / wetted materials | Stainless Steel (316) |
| Diaphragm material | Nordel (EPDM) |
| Ball material | Nordel (EPDM) |
| 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 |
| Repair kit | K20-ME-1 |
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