In Wilden’s model names, PS stands for Pro-Flo SHIFT with a polypropylene air side. Pro-Flo SHIFT is the air distribution system Wilden designed to cut compressed air consumption. The XPS models use t…
| Flow Rate | Up to 1049 L/min (277 gpm) on the largest 4" models; depends on model and size |
|---|---|
| Head | Up to 86 m (8.6 bar / 125 psi), depending on air pressure |
| Inlet / Outlet Diameter | 1/4" to 4" (6 to 102 mm), depending on model |
| Material | Aluminum Alloy, Cast Iron, SS316 Stainless Steel, Hastelloy, PP, PVDF, Carbon Filled Acetal |
In Wilden’s model names, PS stands for Pro-Flo SHIFT with a polypropylene air side. Pro-Flo SHIFT is the air distribution system Wilden designed to cut compressed air consumption. The XPS models use the same system with an aluminum air side.
| Model | Port | Body materials | Max flow (example build) |
|---|---|---|---|
| PS25 | 1/4″ | Polypropylene, PVDF | 5.7 gpm (22 L/min) |
| PS4 | 1-1/2″ | Stainless steel, polypropylene, PVDF | 99 gpm (375 L/min), stainless |
| PS420 / PS430 | 1-1/2″ | Stainless steel, iron | 128 gpm (485 L/min) |
| PS8 | 2″ | Stainless steel, polypropylene, iron | 190 gpm (719 L/min), stainless |
| PS820 / PS830 | 2″ | Stainless steel, iron | 173 gpm (655 L/min), stainless |
| PS20 | 4″ | Cast iron | 277 gpm (1049 L/min) |
Plastic bolted versions, PS400, PS800 and PS1500, are also listed in polypropylene and PVDF.
Both use the same air system. The polypropylene air side of a PS pump is typically rated to 175 °F (79 °C) in Wilden’s data, while XPS pumps with an aluminum air side typically reach 220 to 225 °F (104 to 107 °C), and more with some FKM builds. For a cold or hot duty, that is often the deciding factor.
How much air a SHIFT pump saves depends on the duty point, so ask us for the curve at your flow and pressure.
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