This had already been posted back in September
2007 on our old blog and as it had attracted tremendous interest I'm happy to
give it a makeover with more detail !
For those who do not often change things on a UHV vacuum system, here's some tips if you need to mount a viewport. First, never use a viewport that appears to be, or is known to be damaged. A replacement viewport costs far less than repairing a system that has been subject of an implosion caused by a faulty viewport.
For those who do not often change things on a UHV vacuum system, here's some tips if you need to mount a viewport. First, never use a viewport that appears to be, or is known to be damaged. A replacement viewport costs far less than repairing a system that has been subject of an implosion caused by a faulty viewport.
SAFETY
Pressure differentials: Kodial VPZ viewports are designed to
withstand 1 Bar differential pressure. Other standard viewports are designed to
withstand 2 Bar differential pressure. The pressure on the ‘vacuum side’ of the
viewport must not exceed a positive pressure differential of 1 bar. The
viewports are designed for vacuum applications.
- WARNING: Pressures in excess of this or high reverse pressures may cause catastrophic failure and result in serious injury.
