Yamada
Yamada NDP-20BAC-PP — 3/4" Aluminum Diaphragm Pump, Neoprene Diaphragm
Yamada NDP-20BAC-PP — 3/4" Aluminum Diaphragm Pump, Neoprene Diaphragm
Subscribers save 5% on every order.
Not sure this fits your application? Email us your application details and we'll help you confirm it's the right pump.
Need better pricing? Request a quote
Add service kits for this pump
Ticked kits are added alongside the pump.
Couldn't load pickup availability
The NDP-20BAC-PP is Yamada's 3/4" air-operated double-diaphragm pump in aluminum, with a 31.7 GPM maximum. It passes solids to 1/16" (2.0 mm) and handles fluid to 180°F (82°C).
An aluminum wetted path is the workhorse choice for petroleum products, inks, adhesives and machine coolant, giving metal durability without the cost of 316. Neoprene diaphragms and balls give balanced service across mild chemicals, oils and water, and are the economical default where nothing aggressive is being moved. 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. 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.
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-20BAC-PP |
| Yamada item no. | 854059 |
| 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 | Aluminum (ADC-12) |
| Diaphragm material | Neoprene (CR) |
| Ball material | Neoprene (CR) |
| 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-MC-1 |
Share
