Wilden AODD PumpWilden Cast Iron AODD Pumps — Rugged & Genuine
Genuine Wilden cast iron air-operated diaphragm pumps — the rugged, economical choice for wastewater, heavy transfer and abrasive duties. In stock.

Genuine Wilden polypropylene air-operated diaphragm pumps — cost-effective chemical resistance for a wide range of acids, bases and salts. In stock.
| Flow Rate | model-dependent (1/4-inch–2-inch range |
|---|---|
| Head | up to 86 m (8.6 bar / 125 psi) |
| Inlet / Outlet Diameter | 1/4-inch–2-inch (6–51 mm) |
| Material | polypropylene |
Polypropylene is the workhorse plastic of chemical pumping, and for good reason. It stands up to a genuinely wide spread of acids, bases and salt solutions, and it does it at a price well below PVDF or stainless. For a lot of chemical duties, it’s simply the right call.
A polypropylene Wilden with a PTFE or Santoprene diaphragm covers most everyday chemical transfer — plating rinses, cleaning solutions, mild acids and alkalis. Where it stops is the really aggressive, hot or oxidising stuff; that’s PVDF or Alloy C territory, and we’ll flag it if your fluid sits in that band.
Genuine, full plastic range, common builds stocked. Send the chemical and concentration and we’ll confirm polypropylene is enough — no sense paying for PVDF you don’t need.
Wilden AODD PumpGenuine Wilden cast iron air-operated diaphragm pumps — the rugged, economical choice for wastewater, heavy transfer and abrasive duties. In stock.
Wilden AODD PumpGenuine Wilden aluminium air-operated diaphragm pumps — the economical metal choice for oils, fuels, solvents and general transfer. Full range, in stock.
Wilden AODD PumpThe Wilden Advanced series — bolted air-operated diaphragm pumps built for leak-tight containment on demanding and hazardous duties. Genuine, in stock.