Dear Brooks, The device you could be enquiring about is a Pressure Control Valve or PCV. That is a standard item and should be quite readily available a reasonable cost. Any reputabe pneumatic or compressed air engineer should be able to find the correct component in their catalogue. The parameters vital to sizing the device correctly are Flow Rate, Inlet Pressure, and Outlet Pressure which I assume would be atmospheric ie 0 psig. If the bag inflation pressure is to be 2 atmospheres above atmospheric then the gauge would read about 30 psig. If you are talking about two atmospheres absolute pressure then the gauge would be about 15 psig. This point needs to be cleared up before live guineapig stage. Kind regards, Tony
BROOKS BRADLEY wrote: > > Our principal problem was in finding the proper > continuously-relieving escape valve for the chamber proper. We > evaluated several off-the-shelf, and custom made commercial valves. All > worked to some degree, but we are, at present, testing a method whicn > uses only a couple of variable-diameter holes fashioned in the outer > fabric and reinforced against tearing. This latter approach is by far > the most economical. However, the downside is that the pressurizing > air-supply compressor system is required to supply much greater > quantities of air....to keep the bag properly inflated (at about 2 > atmospheres) and to evacuate the C02 sufficiently. > Do remember this system uses either a conventional > oxygen-mask, or our "Home-Made" nebulizer system for supplying the > oxygen component......and a conventional air compressor (with low > cut-off limits) as the pressurizing source for the contained > atmosphere. -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
