Description
Techcon TSD1400-129C dispensing valve parts replace the EPR O-ring used in compatible Techcon valve service. The O-ring has a 1 9/16 inch inside diameter and a 3/32 inch cross section, making it a size-specific seal for maintenance work where the valve must be rebuilt with the correct elastomer and dimensions. It is intended for service teams maintaining dispensing valves used with adhesives, sealants, and production fluids.
Where dispensing valve parts fit in valve rebuilds
O-rings seal static or moving interfaces inside a valve assembly, depending on the valve design. In dispensing service, a damaged or worn seal can allow leakage, pressure loss, inconsistent shutoff, or material migration into areas that should stay clean. During a rebuild, the correct seal size is just as important as the valve model. A seal that is too small, too large, or made from the wrong elastomer can fail quickly or create drag in the assembly.
EPR compatibility depends on the actual fluid, cleaning method, and operating environment. Confirm the seal material against the fluid being processed before returning a rebuilt valve to service. The exact inside diameter and cross section help maintenance teams identify this part in a drawer of similar O-rings.
How dispensing valve parts help control leaks
Valve seals work best when the mating surfaces are clean, undamaged, and lubricated according to the service guide for the equipment. Before installing the replacement O-ring, inspect grooves, pistons, caps, and adjacent hardware for cured adhesive, nicks, or flattened seal residue. Clean the area with a method approved for the material and valve. Do not stretch the seal more than needed, and avoid sharp tools that can cut the sealing surface.
After installation, cycle the valve under a controlled test condition before putting production material back through the system. Watch for leakage around the serviced area and confirm that dispense timing has not changed. If the valve is part of a two-component setup, also check the downstream mixer, cartridge, and related dispensers, mixers, and nozzles so the full path is ready for production.
Dispensing valve parts specifications
| SKU | TEC-TSD1400-129C |
|---|---|
| Manufacturer | Techcon |
| Part type | O-ring |
| Material | EPR |
| Inside diameter | 1 9/16 in |
| Cross section | 3/32 in |
| Use | Dispensing valve service |
Use this O-ring only where the valve service documentation calls for this material and size. Additional product-family information is available from Techcon.
Need Help
Need help confirming the O-ring size, valve family, or related replacement item for a rebuild? Call (800) 220-1966 or email [email protected].
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