Lukasz Krzempek TE-VSC-DLM 28th WP8 Bi-weekly meeting Tuesday, 24 November 2015 Vacuum layout (Experimental side) Lukasz Krzempek TE-VSC-DLM Current vacuum layout TAS Gate valve assembly TAS side VAX-BPM assembly Gate valve assembly Chamber side Lukasz Krzempek TE-VSC-DLM VAX-BPM assembly 740[mm]-frame length 1275[mm]-from bellow to bellow (installation length of bellows) 2078[mm]-from TAS wall to bellows quick flange Lukasz Krzempek TE-VSC-DLM Gate valve assembly - TAS sideGate valve assembly - IR side Lukasz Krzempek TE-VSC-DLM General view - ATLAS experiment Different position of Angle valves for ATLAS and CMS Lukasz Krzempek TE-VSC-DLM Horizontal position of angle valves determined by given envelope ATLAS experiment Front view Top view Lukasz Krzempek TE-VSC-DLM Side view of vacuum layout ATLAS experiment Gate valve from IR side intended to install on chamber support On-going studies on another solution aiming to avoid bellows and its compressing mechanisms -> valves directly attached to TAS and exp. vacuum chambers Envelope length available for ATLAS vacuum layout 1789[mm] Vacuum layout from ATLAS experiment fitted in envelope available for CMS detector Lukasz Krzempek TE-VSC-DLM Horizontal position for angle valves not possible in CMS layout Lukasz Krzempek TE-VSC-DLM General view and modifications of vacuum layout - CMS experiment ! Vertical position of angle valves for CMS experiment Next slide Assumed 6[mm] gap between head of angle valve and VAX-BPM support to ease maintenance Lukasz Krzempek TE-VSC-DLM Modification of vacuum layout - CMS experiment New vertical position for angle valves demands 25[mm] extension of tube equipped with bellow and actuator Lukasz Krzempek TE-VSC-DLM Vertical position of angle valves determined by given envelope CMS experiment Front view Top view Lukasz Krzempek TE-VSC-DLM Side view of vacuum layout CMS experiment Up to date design shows handling issues - transport Envelope length available for CMS vacuum layout 2048[mm] Lukasz Krzempek TE-VSC-DLM d models: ST CMS ST ATLAS