Description
Techcon A0100487 dispensing needle assembly replaces the needle and piston stack in compatible Techcon TS5540 spray valve service work. The part is used when maintenance teams rebuild a valve by the service guide instead of trying to clean or reuse a worn internal assembly.
Dispensing Needle Service Role
Use this assembly when the valve drawing, service guide, or removed part confirms A0100487. A needle and piston assembly sits inside the valve stack, so surrounding seals, air caps, nozzle parts, and O-rings should be inspected before reassembly. Clean cured material from the service area and verify spray pattern after the valve is back together.
Service and Handling
After installing the assembly, cycle the valve with the intended fluid and confirm clean shutoff before returning it to production. A new internal assembly can only solve the problem if the air cap, nozzle, seals, and fluid path are also clean. Keep the removed part until the test passes so the technician can compare wear patterns. Record the rebuild date for future troubleshooting.
Common Applications
- TS5540 series spray valve service and rebuild work.
- Replacement after wear, damage, contamination, or poor shutoff behavior.
- Maintenance kits for adhesive, coating, primer, and low viscosity spray stations.
- Repair benches that organize small Techcon parts by manufacturer number.
Dispensing Needle Assembly Specs
| Property | Value |
|---|---|
| SKU | TECA0100487 |
| Manufacturer part | A0100487 |
| Part type | Needle and piston assembly |
| Related equipment | TS5540 series spray valve |
| Use | Valve service and rebuild work |
| Install note | Confirm service drawing before replacement |
Packaging and Ordering
Order this assembly when the service task calls for A0100487 and the valve model has been confirmed. Browse related dispensers, mixers, and nozzles for valves, nozzles, O-rings, fittings, and repair parts. Manufacturer background is available from Techcon.
Need Help?
Need help matching a dispensing needle assembly to a valve model or spare-part drawing? Call (800) 220-1966 or email [email protected].







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