PRODUCT OVERVIEW
Part identification
WILDEN 04-3858-13 is identified as Air Control Spool. The recorded material is ACETAL. This page is structured for part identification, maintenance planning and RFQ review.
TECHNICAL DATA
Technical parameters
| WILDEN item number | 04-3858-13 |
|---|---|
| Model / configuration | 1.5 |
| Part type | Air Control Spool |
| Part function | Air Control Spool |
| Material | ACETAL |
| Purpose / application | Air Control Spool |
| Technical identification | Air Control Spool for 1½" Pro-Flo Shift (PS) Series Pumps |
| 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
04-3858-13 · Air Control Spool
Air Control Spool for 1½" Pro-Flo Shift (PS) Series Pumps
No verified component-level BOM is available for this record.
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.









