Description
The Techcon TS941 cup seal with Teflon and Viton expander O-ring is one of the dispensing valve parts used when a high-pressure spool valve needs a seal material change or a wear-point replacement. It belongs in the TS941 service stack, where the seal supports controlled shutoff and repeatable material flow through adhesive, sealant, grease, silicone, and similar dispensing processes.
Where these dispensing valve parts fit
The TS941 high-pressure spool valve is used when a shop needs clean on-off control for medium to high viscosity fluids. The seal sits in the front section of the valve, close to the wetted path, so damage or swelling can show up as dripping, slow cutoff, pressure loss, or inconsistent shot size. A Teflon seal with a Viton expander O-ring is useful when the process calls for a different seal package than the standard configuration. It gives maintenance teams a specific replacement option instead of forcing a full valve replacement when the body and spool are still serviceable.
Use this part during planned valve service, after a failed leak check, or when material compatibility points away from the seal already installed in the valve. Before teardown, depressurize the system, disconnect air and material feed, and clean the outside of the valve so cured residue does not enter the bore. Compare the removed seal to the replacement before reassembly, then inspect nearby O-rings, washers, and the spool surface for cuts or scoring.
Installing dispensing valve parts during service
Install the seal without nicking the Teflon lip or twisting the expander O-ring. Techcon spare-parts guidance calls out lubrication practices for O-rings and seals in the TS941 family, so follow the current service guide and keep the special dry-seal exceptions separate from this part. After reassembly, cycle the valve with a low-risk test setup before production material returns to the station. Check cutoff, bead consistency, and leakage around the front section.
| SKU | TECTSD400-58 |
|---|---|
| Part Type | TS941 cup seal |
| Seal Material | Teflon |
| Expander O-Ring | Viton |
| Valve Family | Techcon TS941 high-pressure spool valve |
| Service Role | Front-section sealing component |
For adjacent valve seals, fittings, tubing, and repair hardware, browse dispensers, mixers, and nozzles. For manufacturer background on the valve family, visit Techcon.
Need Help?
Need help matching seal material to your valve, fluid, or cleaning process? Call (800) 220-1966 or email [email protected].
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