Yamada
Yamada NDP-20BPE-PP-FLANGE — 3/4" Polypropylene Diaphragm Pump, EPDM Diaphragm
Yamada NDP-20BPE-PP-FLANGE — 3/4" Polypropylene Diaphragm Pump, EPDM Diaphragm
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Yamada's NDP-20BPE-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).
A glass-filled polypropylene wetted path handles dilute acids, alkalis and brines without the galvanic issues a metal body brings, making it the usual pick for chemical transfer and wastewater duty. 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. Fitted with flanged manifolds rather than 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.
Shipped from Texas with short lead times and strong pricing. If you are unsure which build fits your fluid, send us the application details and we will point you at the right part number.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-20BPE-PP-FLANGE |
| Yamada item no. | 854110 |
| 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 | 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; Flanged manifold |
| Repair kit | K20-PE-PP |
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