PRODUCT OVERVIEW
Configuration overview
WILDEN XPS1/AAAAA/EPS/EP/AEP is an air-operated double-diaphragm pump configuration organized by DFIN for accurate identification, selection and quotation. The complete code should be used because it defines pump size, wetted construction, air system, elastomers, valve components and special options.
TECHNICAL DATA
Technical parameters
| WILDEN item number | 01-11221 |
|---|---|
| Model / configuration | XPS1/AAAAA/EPS/EP/AEP |
| Port size | 1/2" |
| Air distribution system | Pro-Flo SHIFT® |
| Wetted construction | Aluminum |
| Diaphragms | Epdm |
| Valve balls | Epdm |
| Valve seats | Aluminum with Epdm O-Ring |
| Outer piston | Aluminum |
| Air chamber | Aluminum |
| Center block | Aluminum |
| Air valve | Aluminum |
| Maximum capacity (GPM) | 15 |
| Maximum capacity (L/min) | 60 |
| Weight (kg) | 0 |
| Air end repair kit | 01-9993-99 |
| Wet end repair kit | 01-9804-54 |
Model and configuration explanation
The full WILDEN configuration code identifies size, body and manifold construction, center section, air distribution system, diaphragms, balls, seats and special execution. Similar model families can use different internal parts.
Materials
Review the body, diaphragms, balls, seats, seals and process-fluid compatibility as a complete system. Do not approve a material from one component alone.
Performance
Published maximum flow is a reference value. Actual capacity depends on air supply, discharge pressure, suction condition, viscosity, pipe losses and solids content.
Suitable operating duties
Typical duties include chemical transfer, process circulation, tank unloading, coatings, wastewater and solids-bearing fluids where an AODD pump is appropriate. Final suitability depends on the actual fluid, concentration, temperature and duty point.
Selection guidance
Provide the fluid name and concentration, temperature, viscosity, solids size, suction lift, required flow, discharge pressure, connection standard and available air pressure. For service parts, also provide the pump nameplate and the removed component code where visible.
SERVICE MATCHING
Compatible repair kits and spare parts
WILDEN 01-9993-99
Air Repair Kit for Metal ½" Pro-Flo Shift (PS) Series including PS1 Clamped Pumps With Metal Air Valve
5 referenced component item numbers
00-2650-03Retaining Ring for ¼" Pumps01-2620-56Air Valve Gasket in Hytrel ½" Pro-Flo Shift (PS) Series Pumps01-3220-55Air Valve O-Ring in PTFE ½" Pro-Flo (P), Turbo-Flo (T) Series Pumps01-3502-56Muffler Plate Gasket in Hytrel ½" Pro-Flo Shift (PS) Series Pumps01-2395-52Wetted Path O-ring in Buna (1.362" ID x .103" W)
WILDEN 01-9804-54
Wet End Kit for ½″ Original Clamped Metal including P1, PS1, PX1, T1 - EPDM (EPS) Diaphragms, Standard Components
4 referenced component item numbers
00-1260-54Wetted Path O-ring in Epdm (0.924" ID × 0.103" W)01-1010-54Traditional EPDM (EPS) diaphragm for ½″ pumps01-1080-54Valve Ball in Epdm for ½" Pumps01-1300-54Wetted Path O-ring in Epdm (0.987" ID × 0.103" W)
Spare Parts for item 01-11221
24 referenced component item numbers
01-9993-9901-9804-5472-7063Wilden® Equalizer® Surge Dampener SD Series creates laminar process flow by reducing and/or elimina…00-1260-54Wetted Path O-ring in Epdm (0.924" ID × 0.103" W)01-1010-54Traditional EPDM (EPS) diaphragm for ½″ pumps01-1080-54Valve Ball in Epdm for ½" Pumps01-1120-0101-1300-54Wetted Path O-ring in Epdm (0.987" ID × 0.103" W)01-3711-08Inner Piston for ½" Stainless Steel Rubber/TPE/PTFE Diaphragm Fitted Pumps01-3810-0301-4570-0101-5000-0101-5160-0101-5220-0101-5230-0101-6070-0301-6101-0301-6400-0301-6730-0302-3512-9904-6345-0804-6400-0301-6080-0301-6802-08
Kit contents and quantities can change by pump generation, material code, special option and revision. DFIN verifies the exact item number and BOM before quotation.
Maintenance notes
Isolate and depressurize both air and fluid lines before service. Inspect diaphragms, valve balls, seats, seals, shaft and air-valve wear together. Follow the applicable WILDEN service manual for assembly sequence, lubrication and fastener torque.







