PRODUCT OVERVIEW
Part identification
WILDEN 15-9993-20 is identified as Air Kits. The recorded material is Polypropylene. This page is structured for part identification, maintenance planning and RFQ review.
TECHNICAL DATA
Technical parameters
| WILDEN item number | 15-9993-20 |
|---|---|
| Model / configuration | 3 |
| Part type | Air Repair Kit |
| Part function | Air Kits |
| Material | Polypropylene |
| Purpose / application | Air Kits |
| Technical identification | Air Repair Kit for 3"-4" Pro-Flo Shift (PS) Series Pumps |
| Related WILDEN item numbers | 04-2390-52-700, 04-3879-50, 04-3890-03, 04-3509-56, 15-3210-55-225, 04-2639-56, 04-3529-56, 04-3219-49 |
| Kit scope | Air Repair Kit for Metal 3"-4" Pro-Flo Shift (PS) Series including PS15, PS1500, PS1520, PS1530, PS20 Clamped and Bolted Pumps with Plastic Air Valve |
| Compatible models | Pro-Flo SHIFT |
Compatibility and code verification
Match the complete pump model, generation, size, air distribution system, wetted material and elastomer before ordering. Similar-looking components may not be interchangeable.
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
Part performance and service life depend on the correct pump generation, operating pressure, fluid compatibility, assembly condition and maintenance procedure.
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
Kit contents and service relationship
15-9993-20 · Air Kits
Air Repair Kit for 3"-4" Pro-Flo Shift (PS) Series Pumps
8 referenced component item numbers
04-2390-52-700Wetted Path O-ring in Buna (1.859" ID × 0.139" W)04-3879-50Air Valve O-Ring in Polyurethane 1½" - 3" Pro-Flo Shift (PS) Series Pumps04-3890-03Retaining Ring for 1½" Pumps04-3509-56Muffler Plate Gasket in Hytrel 1½"-3" Pro-Flo Shift (PS) Series Pumps15-3210-55-225Air Valve O-Ring in PTFE 3" Pro-Flo (P), Turbo-Flo (T) Series, Surge Dampeners Serues Pumps04-2639-56Air Valve Gasket in Hytrel 1½"-3" Pro-Flo Shift (PS) Series Pumps04-3529-56Center Block Gasket in Hytrel 1½" - 2" Pro-Flo Shift (PS) Series Pumps04-3219-49Air Control Spool O-Ring in Polyurethane 1½" - 3" Pro-Flo Shift (PS) Series Pumps
Compatible models: Pro-Flo SHIFT
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.







