Leak valves are used for repeatable precise control the flow of gas into a vacuum system from an external source. This range of Leak valve is the preferred choice for system builders who need a cost effective fine and ultra-fine gas inlet control.
The LVM range offers excellent response and repeatability over a wide dynamic range. The design virtually eliminates hysteresis and has low internal volume to allow rapid clean up. The ultra fine control actuator fitted to the LVM valve enhances the performance to provide high sensitivity.
Bakeable to 250°c Closed
Bakeable to 450°c Open
ZLVM940 AND ZLVM940R
ZLVM263 AND ZLVM263R
Inlet pressure up to 10 bar to give high stability control
Fine control mechanism with minimum backlash
Adjustable graduated index ring
Wide dynamic range
Available with range of mounting flanges
304L Stainless steel body and mallory sealing pad
Operating pressure range from 10-11 mbar
|All Metal Right Angled Leak Valves (LVM Series)|
|DN Type||Axial/Radial |
|Shipping Weight (kg)||Order Code|
|DN19||Rotatable 34||6.4||14||10 bar||100 mbar||1x10-11 mbar||0.1||1x10-12||450°C*||250°C*||2.6||ZLVM940R|
|DN34||Rotatable 70||6.4||14||10 bar||100 mbar||1x10-11 mbar||0.1||1x10-12||450°C*||250°C*||2.6||ZLVM263R|
|*When both ports of the valve are under vacuum|
|All Metal Right Angled Leak Valve Spares|
|LVM Pad with Gold Seal||ZLVMPSK|
|LVM Diaphragm Core, Pad and Gold Seal||ZLVMDSK|
ZLVMPSK - For valves which are becoming hard to control
ZLVMDSK - For valves which have failed after a series of bakes
To make a leak tight UHV seal between two conflat flanges, a gasket is required. Our gaskets are manufactured from quality controlled precision sheet material.
This group can be subdivided into two basic valve types; right angled all metal valves and the right angled elastomer sealed valves.