Yamada
Yamada NDP-5FST — 1/4" Stainless Steel Diaphragm Pump, PTFE Diaphragm
Yamada NDP-5FST — 1/4" Stainless Steel Diaphragm Pump, PTFE Diaphragm
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The NDP-5FST covers 1/4" transfer duty as an air-operated double-diaphragm pump in stainless steel, rated to 3.4 GPM. It handles fluid to 212°F (100°C).
316 stainless construction is specified where corrosion resistance and cleanability both matter — dairy, brewing, fine chemicals and pharmaceutical transfer. PTFE diaphragms and balls give near-universal chemical resistance, covering solvents, concentrated acids and oxidizers that destroy rubber elastomers, at the cost of a slightly lower displacement per stroke. Flat check valves are the right choice where the pump has to lift liquid rather than being fed by gravity.
Air drive means no electrics at the pump, seal-less operation with nothing to leak at a shaft, and safe stalling against a closed discharge.
We ship from Texas, quote honest lead times and price sharply. Tell us the fluid, temperature and flow you need and we will confirm the right configuration before you order.
| Brand | Yamada |
|---|---|
| Model / MPN | NDP-5FST |
| Yamada item no. | 851565 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | NDP-5 |
| Port size | 1/4" |
| Maximum flow | 3.4 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Displacement per cycle | 0.0078 gal (29 cc) |
| Maximum dry suction lift | 5 ft |
| Maximum fluid temperature | 212°F (100°C) |
| Check valve type | Flat valve |
| Body / wetted materials | Stainless Steel (316) |
| Diaphragm material | PTFE |
| Ball material | PTFE |
| Air motor | Standard |
| Air inlet | 1/4” Female NPT |
| Air exhaust | 3/8” Female NPT |
| Repair kit | K5-MT |
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