Description
Diaphragm Valve Piston TEC5620-000-005 is the replacement piston used in Techcon TS5620 and TS5622 diaphragm valve service. It is the moving internal part that responds to air pressure, opens the material path, and lets the spring return close the diaphragm for clean shutoff.
Diaphragm Valve Piston Benefits
- Stainless replacement piston for TS5600 series diaphragm valve rebuilds.
- Helps restore valve actuation when the original piston is worn, damaged, or contaminated.
- Supports low to medium viscosity dispensing work where shot size and shutoff need to stay repeatable.
- Useful for maintenance teams stocking named Techcon spare parts instead of generic substitutes.
- Works within the TS5620 valve design, which uses 70 to 90 psi input air to drive the piston assembly.
Techcon diaphragm valves are normally closed and use a short opening stroke for fast shutoff. That design makes the piston a critical service item when a valve starts responding slowly, leaking, or drifting from the set deposit size. Replacing the worn part helps the valve return to a predictable motion path.
Diaphragm Valve Piston Service Notes
Before installing this part, clean the valve body and inspect the diaphragm, spring, seals, and mating surfaces. Follow the valve guide for lubrication points, keeping the diaphragm dry where the guide calls for it. Do not force the piston into a dirty bore or reuse damaged seals around a new piston.
| Property | Detail |
|---|---|
| SKU | TEC5620-000-005 |
| Techcon part | 5620-000-005 |
| Part type | Replacement piston for diaphragm valve |
| Material reference | Stainless steel in supplier spare-part listing |
| Valve family | TS5600 / TS5620 diaphragm valve service |
Ordering Piston Parts
Keep this piston with matching repair kits, seals, and Chemical Concepts dispensers, mixers, and nozzles. For manufacturer background on Techcon dispensing equipment, visit Techcon.
Need help matching a valve spare to your equipment record? Call (800) 220-1966 or email [email protected].







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