CPAC NeSSI Focus Group May 3, 2004

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CPAC NeSSI Focus GroupMay 3, 2004

• Focus Group Agenda
• Dave Veltkamp Roll Out of NeSSI Knowledge
  Network website (30 min)
• discussion
• John Mosher Update on DOE activities (10 min)
• discussion
• Rob Dubois Some de facto preferences for SP76
  technology (20 min)
• slides and discussion

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Some De Facto Preferences for SP76 Technology

• May 3, 2004
• CPAC, Seattle, WA

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de facto spacing back panel marking
A preferred practice would be to leave spaces
between substrate rows and columns in multiples
of SP76 blocks. e.g. 1.53, 3.06, etc. By this
means the back plate can be pegboard drilled and
tube to block connectors may be built in standard
multiples to span open spaces. Tagging the back
panel as illustrated is also helpful to the End
User.
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Consider substrate flow marking
Here is an example where one manufacturer marks
his substrate to indicate the flow paths. This
may not be feasible in some cases but is shown as
one way to demonstrate flow.
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helium leak check channel useful
Some manufacturers provide this channel. We
think that this is a good idea.
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SM component leak check port
Some manufacturers provide helium check ports on
their components. We believe that this is a good
idea. Do you plan to do this with your SM
components?
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We like comprehensive SM component identification
Some surface mount components incorporate
extensive indelible tagging. Having material of
construction, serial number, manufacturer name
and logo, model number, material traceability,
pressure rating, directional arrows, inlet/outlet
etc. are all very helpful to the End User.
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End User tagging replaceable tags
Consider some way to add End User tagging e.g.
AFL-001 (and variable information i.e. filter
element size) to the SM component. Needs to be
non-permanent. Adhesive tags may be ideal.
Wired on tags are not acceptable.
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Combi-Valve Interfaces
combi- valve
A Standard Interface (close-coupled) between
pneumatic actuator and electrical operator would
be desirable.
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Further thoughts

• Enclosure Mounting. Use flexible metallic hoses
  between substrate and enclosure bulkheads/tube
  entries
• must be low cost/light weight
• eliminates the need for any tube bending
• SAE fittings are useful for angle connectors esp.
  on solenoid/pneumatic valve connections
• low cost flow switch which operates in both
  vertical and horizontal positions
• require more items on substrate incl. close
  coupled or on substrate pumps, coolers,
  coalescers
• as a de facto requirement use the "center
  position hole as the INLET for surface mounted
  components