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Calibrated Leak Standards

 

 

CLS Series Helium Permeation Calibrated Leaks

  • Chrome plated brass body
  • Bellows sealed shutoff valve
  • Used for helium leak detector calibration

CLS Series Helium Permeation Calibrated Leaks

CLS Series Helium Permeation Calibrated Leaks

 
PART NUMBER LEAK RANGES (TORR L/SEC @ 25 °C)
CLS-8 1 x 10-5 to 2 x 10-6
CLS-9 1 x 10-6 to 2 x 10-7
CLS-10 1 x 10-7 to 2 x 10-8
CLS-11 1 x 10-8 to 2 x 10-9
CLS-12 1 x 10-9 to 2 x 10-10

 

Notes

  • Actual leak rates that exist within the ranges given above for each model is considered within specifications.
  • Key High recommends storing all permeation leaks with the Shut off valve open to prevent saturation of the glass element.

Options

  • KEY SPEEDY NW40 and NW50 fittings are available upon request
  • Larger or smaller leak rates are available upon request

Recalibration Service

Key High provides a complete recalibration and refilling service traceable to the National Bureau of Standards. Key High also services and repairs other brand helium permeation gas leaks. All calibrated gas leaks are shipped with certified calibration reports traceable to the NBS.


Product information is subject to change without notice. Product images may include options or accessories not included with the base model.

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For 50 years, Key High Vacuum Products, Inc. has been a trusted leader in precision-engineered stainless steel high vacuum weldments. With tens of thousands of unique weldments in use—from particle accelerators to industrial leak detectors—our expertise is proven across industries. Rooted in innovation, craftsmanship, and an unwavering commitment to customer satisfaction, we deliver high-quality, customized solutions that drive success. Every day, our team brings a unique blend of passion and precision, ensuring your goals are met with excellence—because your mission matters. Experience the Key High difference.
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