OM Series Calibrated Orifice Leaks

The OM Series leaks utilize a precision tapered glass capillary as the leak element. Gases pass through a single orifice, with the leak rate dependent upon size and gas pressure. To prevent clogging of the fine orifice, a unique particle trap is located between the capillary tube and outlet fitting.

High Performance features

• Lowest temperature coefficient available, 0.2 %/°C ensures predictable leak rates over a wide temperature band

• Wide range of leak rates available, 10^-3 to 10^-9 atm-cc/sec

• Specific leak rate values available to match your product’s leak specifications

• Supplied with N.I.S.T. certificate at no additional charge

• Unique particle trap virtually eliminates clogging, typically associated with capillary leaks

• Leaks supplied with 300cc or 500cc stainless steel cylinder (depending on leak rate) with DOT-3E1800 rating offering maximum life span

• Available in a wide variety of gases (see ordering information) and outlet fittings

Ordering Information for OM Series

Available in a wide range of gases as coded below. Specify gas code and leak rate. When ordering Part No. 922-XYY, X = Leak Rate Exponent and YY = Gas Code from the chart below. Leak Rates: 10^-3 to 10^-9.

Example: OM No. 922-501 = 10^-5 range Helium Leak

All leaks filled with high purity gases. All OM models supplied with 1/2" OD smooth tube connection unless otherwise specified. OM-3 range leaks provided with 500 cc volume. Please note that other gases and specific leak rate values are also available upon request. Available gases include:

01 Helium

02 Helium 3

03 Argon

04 Nitrogen

05 Hydrogen

06 Oxygen

07 Air

08 Deuterium

09 R-12

10 R-22

11 R-23

12 Krypton

13 Carbon Dioxide

14 Carbon Monoxide

15 Methane

16 Neon

17 Sulfur Dioxide

18 SF₆

19 Xenon

20 —

21 R-134A

Other gases and specific leak rate values are available upon request. At an additional charge, all OM model gas leaks can be supplied at a specific leak rate ±1 of specified leak rate (example: a 2.5 x 10^-5 atm-cc/sec specified will receive leak at 1.5 to 3.5 x 10^-5 atm-cc/sec) or, at an extra close tolerance of specific leak rate ±0.5 of specified leak rate (example: a 2.5 x 10^-5 atm-cc/sec will receive leak at 2 to 3 x 10^-5 atm-cc/sec.


	OM Series Calibrated Orifice Leaks


		The OM Series leaks utilize a precision tapered glass capillary as the leak element. Gases pass through a single orifice, with the leak rate dependent upon size and gas pressure. To prevent clogging of the fine orifice, a unique particle trap is located between the capillary tube and outlet fitting. High Performance features • Lowest temperature coefficient available, 0.2 %/°C ensures predictable leak rates over a wide temperature band • Wide range of leak rates available, 10^-3 to 10^-9 atm-cc/sec • Specific leak rate values available to match your product’s leak specifications • Supplied with N.I.S.T. certificate at no additional charge • Unique particle trap virtually eliminates clogging, typically associated with capillary leaks • Leaks supplied with 300cc or 500cc stainless steel cylinder (depending on leak rate) with DOT-3E1800 rating offering maximum life span • Available in a wide variety of gases (see ordering information) and outlet fittings Ordering Information for OM Series Available in a wide range of gases as coded below. Specify gas code and leak rate. When ordering Part No. 922-XYY, X = Leak Rate Exponent and YY = Gas Code from the chart below. Leak Rates: 10^-3 to 10^-9. Example: OM No. 922-501 = 10^-5 range Helium Leak All leaks filled with high purity gases. All OM models supplied with 1/2" OD smooth tube connection unless otherwise specified. OM-3 range leaks provided with 500 cc volume. Please note that other gases and specific leak rate values are also available upon request. Available gases include: 01 Helium 02 Helium 3 03 Argon 04 Nitrogen 05 Hydrogen 06 Oxygen 07 Air 08 Deuterium 09 R-12 10 R-22 11 R-23 12 Krypton 13 Carbon Dioxide 14 Carbon Monoxide 15 Methane 16 Neon 17 Sulfur Dioxide 18 SF₆ 19 Xenon 20 — 21 R-134A Other gases and specific leak rate values are available upon request. At an additional charge, all OM model gas leaks can be supplied at a specific leak rate ±1 of specified leak rate (example: a 2.5 x 10^-5 atm-cc/sec specified will receive leak at 1.5 to 3.5 x 10^-5 atm-cc/sec) or, at an extra close tolerance of specific leak rate ±0.5 of specified leak rate (example: a 2.5 x 10^-5 atm-cc/sec will receive leak at 2 to 3 x 10^-5 atm-cc/sec.








Information Request Form Calibrated Gas Leaks