PRODUCT OVERVIEW
Configuration overview
WILDEN XH220/SSSAA/TWS/TF/STF/0320 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 | 02-12433 |
|---|---|
| Model / configuration | XH220/SSSAA/TWS/TF/STF/0320 |
| Port size | 1" |
| Air distribution system | HIGH-PRESSURE 1" Atex |
| Wetted construction | Stainless Steel |
| Diaphragms | Full Stroke Ptfe, Wil-Flex Back-Up |
| Valve balls | Teflon |
| Valve seats | SS with Teflon O-ring |
| Outer piston | Stainless Steel |
| Air chamber | Stainless Steel |
| Center block | Aluminum |
| Air valve | Aluminum |
| Maximum capacity (GPM) | 24 |
| Maximum capacity (L/min) | 93 |
| Weight (kg) | 40 |
| Air end repair kit | 02-9992-99 |
| Wet end repair kit | 02-9844-55-201 |
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 02-9992-99
Air Repair Kit for Metal 1" High Pressure (H) Series including H220, H230 Bolted Pumps With Metal Air Valve
5 referenced component item numbers
02-2003-01Air Valve Assembly for 1" High Pressure (H) Series in Aluminum02-2603-52Isolator Gasket in Buna 1" High Pressure (H) Series Pumps02-3260-52Center Block Gasket in Buna 1" High Pressure (H) Series Pumps08-3200-52Air Valve O-Ring in Buna 2" High Pressure (H) Series Pumps00-2286-52Wetted Path O-ring in Buna (0.364" ID × 0.070" W)
WILDEN 02-9844-55-201
Wet End Kit for 1" High Pressure Metal including H220 - PTFE/Santoprene® (TWS) Diaphragms, Standard Components
5 referenced component item numbers
02-1011-55High Pressure PTFE (TWS) diaphragm for 1" pumps02-1067-57High Pressure Santoprene® (TWS) back-up diaphragm for 1" pumps02-1085-55Valve Ball in Ptfe for 1" Bolted Metal Pumps02-1205-55Wetted Path O-ring in Ptfe (1.734" ID × 0.139" W)70-1280-55Genuine Wilden Spare Part, PTFE. O-ring used in 1" Bolted Metal Pumps.
Spare Parts for item 02-12433
No official item-specific component list is verified for this configuration yet.
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.








