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This is a multi-part message in MIME format. ------=_NextPart_000_0062_01C0C6B0.AD35C5A0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit dsmith218@ho*.co* ICQ# 25409809 Moderation is for the poor, and the healthy...of which I am neither. - Polver -----Original Message----- From: Mike Rodriguez [mailto:mikey@ma*.co*] Sent: Monday, April 16, 2001 10:42 AM To: David E. Smith Cc: Joel Silverstein; RDecker388@ao*.co*; rikard.lundgren@sw*.se*; techdiver@aquanaut.com Subject: RE: Isolating Manifold Question <snip> Absolutism (is there such a word?) aside, the arguments presented for keeping the isolator fully open are based on logic and are not being made arbitrarily because it "suits someone's argument". The problem you propose to solve by leaving the isolator mostly closed, that of loss of gas due to a freeflow or valve disk or o-ring failure, is an invention of paranoia. These failures take far longer Again, I have proposed no solution to any problem. Read more carefully. <snip> >To this end, what is your source >on the design basis of scuba valves being several turns to shut as an >"intrinsic safety factor". David, this is common knowledge. In contrast, medical oxygen valves, such as those on DAN O2 systems, are fully open with just a single twist. This is because those valves are designed with different objectives than SCUBA valves. I say what you call common knowledge is really an assumption that serves to support your argument. -Mike Rodriguez <mikey@mi*.ne*> http://www.mikey.net/scuba Pn(x) = (1/(2^n)n!)[d/dx]^n(x^2 - 1)^n -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. ------=_NextPart_000_0062_01C0C6B0.AD35C5A0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE></TITLE> <META content=3D"text/html; charset=3DWindows-1252" = http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.3019.2500" name=3DGENERATOR></HEAD> <BODY><BR><BR> <P><FONT size=3D2>dsmith218@ho*.co*<BR>ICQ# 25409809<BR><BR>Moderation = is for the=20 poor, and the healthy...of which I am neither. -=20 Polver<BR> <BR><BR><BR><BR>-----Original Message-----<BR>From: Mike = Rodriguez [<A=20 href=3D"mailto:mikey@ma*.co*">mailto:mikey@mangonet.com</A>]<BR>Sent= : Monday,=20 April 16, 2001 10:42 AM<BR>To: David E. Smith<BR>Cc: Joel Silverstein;=20 RDecker388@ao*.co*;=20 rikard.lundgren@sw*.se*;<BR>techdiver@aquanaut.com<BR>Subject: RE: = Isolating=20 Manifold Question<BR><BR><BR><snip><BR><BR>Absolutism (is there = such a=20 word?) aside, the arguments presented for<BR>keeping the isolator fully = open are=20 based on logic and are not being<BR>made arbitrarily because it "suits = someone's=20 argument".<BR><BR>The problem you propose to solve by leaving the = isolator=20 mostly<BR>closed, that of loss of gas due to a freeflow or valve disk or = o-ring<BR>failure, is an invention of paranoia. These failures = take far=20 longer</FONT></P> <P><FONT color=3D#0000ff face=3DTahoma>Again, I have proposed no = solution to any=20 problem.</FONT></P> <P><FONT color=3D#0000ff face=3DTahoma>Read more carefully.</FONT></P> <P><FONT size=3D2><BR><snip></FONT></P> <P><FONT size=3D2>>To this end, what is your source<BR>>on the = design basis=20 of scuba valves being several turns to shut as an<BR>>"intrinsic = safety=20 factor".<BR><BR>David, this is common knowledge. In contrast, = medical=20 oxygen valves,<BR>such as those on DAN O2 systems, are fully open with = just a=20 single<BR>twist. This is because those valves are designed with=20 different<BR>objectives than SCUBA valves</FONT><FONT = size=3D3>.<BR><BR><FONT=20 color=3D#0000ff>I say what you call common knowledge is really an = assumption=20 that</FONT></FONT></P> <P><FONT color=3D#0000ff>serves to support your argument.</FONT></P> <P><FONT size=3D2>-Mike Rodriguez<BR><mikey@mi*.ne*><BR><A=20 href=3D"http://www.mikey.net/scuba"=20 target=3D_blank>http://www.mikey.net/scuba</A><BR>Pn(x) =3D = (1/(2^n)n!)[d/dx]^n(x^2=20 - 1)^n<BR><BR>--<BR>Send mail for the `techdiver' mailing list to=20 `techdiver@aquanaut.com'.<BR>Send subscribe/unsubscribe requests to=20 `techdiver-request@aquanaut.com'.<BR></P></FONT></BODY></HTML> ------=_NextPart_000_0062_01C0C6B0.AD35C5A0-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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