Yamada
Yamada G25AN11 — 1" Aluminum Diaphragm Pump, Buna-N Diaphragm
Yamada G25AN11 — 1" Aluminum Diaphragm Pump, Buna-N Diaphragm
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Yamada's G25AN11 is a 1" AODD pump in aluminum, moving up to 40.1 GPM. It passes solids to 1/8" (3 mm) and handles fluid to 180°F (82°C).
The aluminum body suits solvents, fuels, oils and paints — the general-industrial fluids where a metal pump is wanted but stainless is more than the job needs. Buna-N diaphragms and balls suit petroleum oils, diesel, hydraulic fluid and greases, but should be kept away from ketones and strong oxidizers. Ball check valves come as standard across the Global Series.
The Global Series air motor uses Yamada's S-Spool valve with no pilot valve and runs completely oil-free, so there are fewer parts to fail and no lubricator to maintain. 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 | G25AN11 |
| Yamada item no. | 854995 |
| Pump type | Air-operated double-diaphragm (AODD) |
| Series | G25 |
| Port size | 1" |
| Maximum flow | 40.1 GPM |
| Air supply pressure | 20-100 PSI |
| Maximum fluid discharge pressure | Same as max air supply (1:1 pump) |
| Maximum solids | 1/8" (3 mm) |
| Displacement per cycle | Rubber 0.158 gal / PTFE 0.118 gal |
| Maximum fluid temperature | 180°F (82°C) |
| Check valve type | Ball valve (standard on G Series) |
| Body / wetted materials | Aluminum (ADC-12) |
| Diaphragm material | Buna-N (NBR) |
| Ball material | Buna-N (NBR) |
| Air motor | S-Spool, no pilot valve, oil-free |
| Air inlet | 3/8” Female NPT |
| Air exhaust | 3/4” Female NPT |
| Port connection | NPT (North America) |
| Repair kit | KG25-AN |
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