Model: WILDEN T20 (Turbo-Flo), PS20 and XPS20 (Pro-Flo SHIFT), clamped, flanged, iron
Spare parts for 4″ WILDEN T20, PS20 and XPS20 iron pumps: what is listed under 20- numbers, and which 3″ air kits the 4″ pumps share.
| Flow Rate | Up to 1049 L/min (277 gpm) |
|---|---|
| Inlet / Outlet Diameter | 4" flanged (size code 20) |
| Material | Iron wetted parts; balls in polyurethane and PTFE; seats in polyurethane and FKM |
The 4 inch WILDEN range is short: the T20 with Turbo-Flo, and the PS20 and XPS20 with Pro-Flo SHIFT. All are clamped, flanged and made of iron, and they move up to 1049 L/min (277 gpm). Their parts list is short too. Wilden lists 22 parts under the 20- size code, and several of the most-ordered items for these pumps carry 3 inch numbers.
| Part | Part number |
|---|---|
| Valve ball | 20-1080-50 polyurethane, 20-1080-55 PTFE |
| Valve seat | 20-1120-50 polyurethane, 20-1120-53 FKM |
| O-ring | 20-1250-53 FKM (7.475 inch ID) |
| Gasket, Pro-Flo SHIFT | 20-1400-53, 20-1400-54 EPDM |
| Shaft | 20-3830-03-07 (Pro-Flo, T20), 20-3800-03-07 (Stallion, T20), 20-3810-03 (Pro-Flo SHIFT) |
| Outer piston | 20-4550-02, 20-4560-02 iron |
| Liquid chamber | 20-5000-02 iron |
| T-section / inlet elbow | 20-5160-02 / 20-5220-02 iron |
| Clamp band | 20-7100-03, 20-7200-03 stainless steel |
Most 4 inch builds run polyurethane balls, which is why 20-1080-50 is the one to keep as a spare. The PTFE ball 20-1080-55 is for the builds with TF in the ball position of the code, such as XPS20/WWAAA/TWS/TF/VVT.
The list does not show a diaphragm under a 20- number. Before ordering, read the part number on your old diaphragm or send us the full build code from the nameplate, and we will confirm the right one rather than guess.
We supply genuine WILDEN parts for these pumps from our warehouse stock, 100% original, with worldwide shipping. For the pumps themselves, see our WILDEN AODD pump range.
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