Description
Small replacement disc for the anti-suckback valve in Leybold Trivac vacuum pumps. Stops oil from being sucked back when the pump shuts off.
This is a simple but important little part.
It sits inside the anti-suckback valve on your Leybold Trivac pump (models S4A, D2A, D4A, D2AC, and D4AC).
When the pump is running, oil pressure keeps the valve open so everything works normally. The moment you switch it off, this disc helps the valve close fast. That way, oil can’t flow back into your vacuum lines or chamber.
No more messy oil in the inlet, no more lost vacuum, and your system stays clean.
You’ll find this exact disc in almost every major repair kit for these pumps
If your pump has been acting up after shutdown or you’re doing a full service, grab this. It’s cheap, fits perfectly, and makes the pump behave like new again.
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