Model: WILDEN T15 / T20 (Turbo-Flo), XPS15 / PS15 / XPS20 / PS20 (Pro-Flo SHIFT), clamped
Genuine WILDEN 3″ and 4″ cast iron diaphragm pumps: T15, XPS15, PS15, T20, XPS20 and PS20. Up to 277 gpm (1049 L/min), the largest pumps in the Wilden range, 62 builds.
| Flow Rate | Up to 277 gpm / 1049 L/min (62.9 m³/h), depending on build |
|---|---|
| Head | Max air pressure 125 psi / 8.6 bar (120 psi / 8.3 bar for T15) |
| Power | Compressed air, max 8.6 bar (125 psi) |
| Inlet / Outlet Diameter | 3" NPT (T15, XPS15, PS15); 4" ANSI flanged (T20, XPS20, PS20) |
| Material | Cast iron wetted path; aluminum or polypropylene air side; Buna-N, Santoprene, Neoprene, polyurethane, EPDM, FKM, Hytrel, Bunalast or PTFE diaphragms |
The largest pumps Wilden makes are cast iron. At 4 inch there are three models, T20, XPS20 and PS20, and they exist only in iron. At 3 inch, the T15, XPS15 and PS15 are also built in iron. Wilden lists 62 cast iron builds across the six.
The 4 inch pumps show a bigger spread in flow than any other size, and the elastomer is the reason:
| Build | Diaphragm | Max flow | Dry lift |
|---|---|---|---|
| XPS20 20-10088 | Buna-N | 277 gpm (1049 L/min) | 13.5 ft (4.1 m) |
| PS20 20-10096 | Buna-N | 277 gpm (1049 L/min) | 13.5 ft (4.1 m) |
| T20 20-10026 | Buna-N | 274 gpm (1037 L/min) | 12 ft (3.7 m) |
| T20 20-10016 | Santoprene | 240 gpm (908 L/min) | 12 ft (3.7 m) |
| XPS20 20-10094 | PTFE | 232 gpm (878 L/min) | 11.3 ft (3.4 m) |
| XPS20 20-10091 | Santoprene | 164 gpm (621 L/min) | 14.3 ft (4.4 m) |
So a Santoprene XPS20 delivers about 40 percent less than a Buna-N one on Wilden’s figures. If you are sizing a 4 inch pump for flow, the diaphragm choice matters as much as the model. These pumps weigh about 530 to 554 lb (240 to 251 kg), with ANSI flanged ports, and the Buna-N builds are listed from 32 to 150 °F (0 to 66 °C).
Build counts: T15 21, XPS15 13, XPS20 12, T20 11, PS20 4 and a single PS15. Send us the flow, the solids and the discharge pressure, and we will check the right build against Wilden’s curves.
| Part No. | Build code | Elastomer | Connection |
|---|---|---|---|
| 15-13197 | PS15/WWCPP/ZWS/WF/WF | Santoprene | Threaded |
| 15-10269 | T15/WWAAB/BNS/BN/BN | Buna-N | Threaded |
| 15-10134 | T15/WWAAB/NES/NE/NE | Neoprene | Threaded |
| 15-10624 | T15/WWAAB/VTS/VT/VT | FKM | Threaded |
| 15-10144 | T15/WWAPB/EPS/EP/EP | EPDM | Threaded |
| 15-10149 | T15/WSAPB/TNU/TF/MTF | PTFE | Threaded |
| 15-12222 | T15/WWAAB/FSS/FS/FS | Hytrel | Threaded |
| 15-10148 | T15/WWAPB/PUS/NE/NE | Polyurethane | Threaded |
All 62 cast iron builds are listed in our part number lookup: T15 | XPS15 | PS15 | T20 | XPS20 | PS20
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