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Manual SS Sapphire-Sealed Variable Leak Valve (CF Flanged)

Bakeable leak valves are used to control the flow of gas into a vacuum system from an external source. A soft metal pad is compressed against a harder metal seat, creating the necessary seal for precise gas flow control.

  • Typical applications include argon processing, sputtering, system purging, precision gas control, and laser back-filling
  • Stainless steel, sapphire and copper alloy construction for long life
  • Inlet pressure to 34 bar maximum
  • Operating pressure from 1 bar to 10-11 Torr
  • Extremely precise control mechanism
  • Bakeable to 450°C in either open or closed position
  • User serviceable

Specifications Table

Temperature (°C) Up to 450°C in either open or closed position
Material 300 series stainless steel, sapphire, OFHC copper and copper alloy
Leak Rate (cc/sec) 1 x 10-9 Torr-liters/sec in normal operation; 1 x 10-10 Torr-liters/sec with condensable vapors eliminated from leak gas; The valve provides an increasing rate of change as the size of the leak increases giving precise control in proportion to size
Weight 1.8 kg (4 lbs)
Max. Inlet Pressure(psi) 500 psi maximum
Vacuum Rating From atmospheric to pressure below 10-11 Torr
Gasket Life For unbaked systems, approximately 300 closures; For baked systems, approximately 20 to 30 closures *Gasket assemblies are replaceable*

Dimensional Drawings

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Ordering Table

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Flange Selection Guide
With a variety of flanges to choose from, the Flange Selection Guide is designed to help you find one to meet your vacuum requirements. Shop Now!
Can't find the flange you need or want a custom configuration? Please call us at +1 412 387 9200 or email international@lesker.com with your inquiry.

Accessories Table

Type Description
VacuCADSM
Part Number Price In Stock Add Item
Type Description
VacuCADSM
Part Number Price In Stock Add Item
Sapphire Assembly
SAPPHIRE ASSEMBLY FOR AML1635CF
N/A
AMLV1635CF-SA
P.O.R.
Contact KJLC for Availability
Repair Kit
REPAIR KIT,FOR AMLV1635CF, INCLUDES SAPPHIRE AND GASKET ASSEMBLIES
N/A
AMLV1635CF-RK
P.O.R.
Contact KJLC for Availability
Gasket Assembly
GASKET ASSEMBLY FOR AML1635CF
N/A
AMLV1635CF-GA
P.O.R.
Contact KJLC for Availability
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Contact Us - Manual SS Sapphire-Sealed Variable Leak Valve (CF Flanged)