Compression Spring, Vane, Leybold, Trivac, D2.5E, D1.2E, Part# 490024 – vacstellar

It’s a vane compression spring. Its one job is to sit behind each vane and push it outward with steady, reliable force.

Think of it like a tiny, powerful leg constantly pressing the vane against the wall. Without this spring’s push, the vane wouldn’t seal. Air would leak past, and the pump couldn’t pull a good vacuum. Your pump would lose its power and efficiency.

This is the exact, Leybold part for this vital task. It replaces part number 490024. It is -made to provide the perfect amount of force—not too weak, not too strong—for your specific pump model.

Use this vane spring for your Trivac D2.5E or D1.2E pump. Replacing worn vane springs during a rebuild is one of the most important steps. It restores the pump’s sealing power and brings its vacuum performance back to like-new condition.