Yamada
Yamada G25AT11 — 1" Aluminum Diaphragm Pump, PTFE Diaphragm
Yamada G25AT11 — 1" Aluminum Diaphragm Pump, PTFE Diaphragm
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This G25AT11 is a 1" G25 air-operated diaphragm pump in aluminum, rated to 40.1 GPM. It passes solids to 1/8" (3 mm) and handles fluid to 212°F (100°C).
Aluminium construction handles solvents, lubricating oils and hydrocarbon-based fluids well, and takes mechanical abuse better than a plastic body in a busy plant. 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. 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 self-primes, tolerates running dry, and stalls harmlessly against a closed valve, so it suits batching and intermittent transfer where a centrifugal pump would be a poor fit.
Texas-based, with short lead times and pricing that reflects our supply position. Not sure this is the right build? Send us the fluid and duty and we will confirm.
| Brand | Yamada |
|---|---|
| Model / MPN | G25AT11 |
| Yamada item no. | 854997 |
| 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 | 212°F (100°C) |
| Check valve type | Ball valve (standard on G Series) |
| Body / wetted materials | Aluminum (ADC-12) |
| Diaphragm material | PTFE |
| Ball material | PTFE |
| 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-AT |
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