Leybold UL 500

The Leybold UL 500 is a large user-friendly helium leak detector that uses a large backing pump that allows it to handle large volumes and offer fast cycle times. It uses an integrated D25B or triscroll 600 dry as the roughing pump. This unit is available in single or 3 phase models.

We offer refurbished models. Contact us for price and availability. We currently have wet and dry versions in stock in both singe and 3 phase.

Services Offered:

  • Rentals Available – $700/week
  • Repair Service


The Leybold Ultratest UL500 helium leak detector’s main field of application lies in quality control of all types of components, beginning with small sized test objects with volumes of less than a cubic inch up to large components having volumes of many cubic feet. The unit is well suited for production helium leak testing large quantities with short cycle times.


  • Has a larger internal roughing pump for quicker evacuation time on equipment
  • Smallest Detectable leak rate 1 x 10-10 mbar-l/s for wet or dry version
  • Great work top area for helium leak checking
  • Large internal wet or dry scroll pump


  • Electrical industry
  • Transistors
  • Current feedthroughs
  • Refrigeration and Air conditioning
  • Fusion systems, accelerators, space simulation
  • Boilers, tanks, pressure vessels
  • Barrels, cans, food packaging
  • Automobile industry


  • External test leak
  • Sniffer Probe


Leybold Ultratest UL500 Manual

Leybold Ultratest UL500 Dry manual

Leybold Ultratest UL500 Brochure

Technical Data:

Leybold Ultratest UL500 Technical Data