From: Hill, JA (John) [J.A.Hill@rl.ac.uk]
Sent: 17 October 2006 09:30
To: Wolfgang Funk; Cockerill, DJA (David)
Subject: Walther Couplings

Attachments: walther_connectors.pdf

Bonjour Wolfgang,
As I stated yesterday in the Crystal Palace Meeting, we intend to purchase a number of 'standard' 
Walther couplings to tryout on the Backplate cooling system for Dee4 prototype. It also seemed 
to make sense that we fit the necessary couplings to the environmental shield and to keep these 
couplings 'in-line' (one male connector onto the pipe, the other female connector to the flexible). 
I can purchase these connectors in the UK however there is a long lead time of 6 weeks, it maybe 
easier to purchase them from CERN.
For Dee4 the plan was to purchase a quadrant worth of Backplate cooling connectors, this would 
mean 8 off the Type 1 connector (10mm pipe) and also the full connector set for an environmental 
shield, this would mean 4 off Type 3 connector (14mm pipe) and 2 off Type 2 connector (12mm pipe). 
For the power cooling of Dee4 we have decided to improvise some solution closer to the test beam work, 
it may be that based on our findings of the standard walther connector we might be able to accommodate 
an in-line solution also.
I attach the proposed connector solution from Walther, I would appreciate that you check my statement 
above and verify my conclusions. The stated (UK) cost for the connectors is approximately 7kChf.
Could you/someone please check the availability/cost of these units with the French representative 
of Walther as we may save a little time on purchase.

Thanks in advance and see you next week.
Best Regards
    John




John A Hill IEng MIED 
Project Engineer

CCLRC Rutherford Appleton Laboratory
Project Engineering Division, Chilton, Didcot, Oxon OX11 0QX


--------------------------------------------------------------------------------

T+44 (0)1235 446611
F+44 (0)1235 446863 
J.A.Hill@rl.ac.uk

http://www.clrc.ac.uk