Description
Techcon TSD400-70 Teflon EPR U-Cup Seal is a replacement TSD400-70 seal for spray and needle valve maintenance in precision dispensing systems. It fits service work where a worn cup seal can affect shutoff, bead control, or repeatable material flow through a Techcon valve.
TSD400-70 seal Benefits
- Teflon U-cup construction supports low-friction movement inside compatible valve assemblies.
- EPR O-ring backing helps maintain the sealing interface during repeated dispensing cycles.
- Built for spray and needle valve service where clean shutoff and controlled flow matter.
- Small replacement part format helps maintenance teams rebuild a valve instead of replacing the full dispense setup.
- Useful for service benches supporting adhesives, coatings, lubricants, and other controlled fluids.
- Works with Techcon spare-parts procedures that identify which seals must stay dry during assembly.
Use this part when a compatible valve begins to show leakage, inconsistent shot size, or wear around the seal area. Replacement should follow the valve manual, including pressure release, cleaning, and the dry-install note for this seal in the Techcon service guide. Keep the removed parts organized during teardown so the new seal goes back into the correct position and orientation.
Common Applications for TSD400-70 seal
- Maintenance of Techcon spray valves and needle valves.
- Repair benches that support production dispensing cells.
- Dispensing lines running adhesives, sealants, coatings, oils, or similar process fluids.
- Preventive maintenance kits for shops that standardize on Techcon valve hardware.
- Troubleshooting shutoff problems, seepage, or irregular bead starts after normal seal wear.
Compatible Valve Service Work
- Spray valve seal replacement.
- Needle valve seal replacement.
- Valve cleaning after material buildup.
- Inspection of O-rings, collars, seats, and adjoining wear parts during rebuilds.
TSD400-70 seal Technical Specifications
| Property | Value |
|---|---|
| SKU | TECTSD400-70 |
| Manufacturer part | TSD400-70 |
| Part type | U-cup seal |
| Seal material | Teflon with EPR O-ring |
| Valve family | Spray and needle valves |
| Service note | Install dry where specified by Techcon valve instructions |
Packaging and Ordering
Order this seal for planned valve maintenance or to keep a spare on hand for production cells using Techcon spray and needle valves. Browse related dispensers, mixers, and nozzles for adjacent service parts. For broader dispensing valve information, visit Techcon precision dispensing systems.
Need Help?
Need help matching this seal to a valve model or maintenance kit? Call (800) 220-1966 or email [email protected].
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