<DIV>Thanks Dan.</DIV>
<DIV> </DIV>
<DIV>John K.</DIV>
<DIV>(203) 414-1000<BR><BR>----- Original Message -----<BR>From: "Dan H." <JUMACHINE@COMCAST.NET><BR>Date: Thursday, September 19, 2013 9:46 am<BR>Subject: Re: [PSUBS-MAILIST] O-rings<BR>To: Personal Submersibles General Discussion <PERSONAL_SUBMERSIBLES@PSUBS.ORG><BR><BR>> John,<BR>> That makes a lot more sense. ;-)<BR>> <BR>> The cross section that's called for should work well. As I said <BR>> in the earlier E-mail, it's pretty important to have the mating <BR>> surfaces true to each other. Weld first then machine. That <BR>> will keep all surfaces true and give you the proper compression <BR>> of the O-ring all the way around the hatch.<BR>> <BR>> Dan H.<BR>> <BR>> ----- Original Message ----- <BR>> From: subvet596@optonline.net <BR>> To: Personal Submersibles General Discussion <BR>> Sent: Thursday, September 19, 2013 7:48 AM<BR>> Subject: Re: [PSUBS-MAILIST] O-rings<BR>> <BR>> <BR>> Hi Dan:<BR>> <BR>> Sorry for the confusion, a run on sentence will do that. I was <BR>> asking about the size/cross-section of the O-ring. The 316 <BR>> stainless steel ring would be welded to the dish lid in which <BR>> the O-ring would be mounted using a machined dove-tail grove, <BR>> <BR>> Thanks for the input.<BR>> <BR>> John K.<BR>> <BR>> <BR>> ----- Original Message -----<BR>> From: "Dan H." <BR>> Date: Wednesday, September 18, 2013 7:07 pm<BR>> Subject: Re: [PSUBS-MAILIST] O-rings<BR>> To: Personal Submersibles General Discussion <BR>> <BR>> > John,<BR>> > <BR>> > Are you sure you really want an O-ring with a one inch cross <BR>> > section??????????You'd need to machine a groove just under <BR>> an <BR>> > inch deep and an inch in across to accept it. If your hatch <BR>> > cover is what the print calls for, it's not think enough for <BR>> a <BR>> > groove of that size. <BR>> > <BR>> > The .275 cross section is plenty. The two mating surfaces <BR>> being <BR>> > flat and mating with no gap is much more important then the <BR>> O-<BR>> > ring cross section. <BR>> > <BR>> > You should be fine with the O-ring called for. <BR>> > <BR>> > Dan H.<BR>> > ----- Original Message ----- <BR>> > From: subvet596@optonline.net <BR>> > To: PSUBS, Inc. <BR>> > Sent: Wednesday, September 18, 2013 3:35 PM<BR>> > Subject: [PSUBS-MAILIST] O-rings<BR>> > <BR>> > <BR>> > Hi All:<BR>> > <BR>> > I need O-rings for the entry hatches which are 24" id. 26" <BR>> od. <BR>> > he question I have is, what is the best cross section size <BR>> to <BR>> > use The parker site has the E1157 @ .275 it seemed a little <BR>> > small to me. I have not yet machined the dove -tail grove <BR>> yet. <BR>> > Also are there any specs. available for setting up a 3 dog <BR>> > mechanism, able to open from inside or out? <BR>> > <BR>> > Looking forward to the convention.<BR>> > <BR>> > <BR>> > John K.<BR>> > (203) 414-1000<BR>> > <BR>> > <BR>> > <BR>> > -------------------------------------------------------------<BR>> ----<BR>> > -------------<BR>> > <BR>> > <BR>> > _______________________________________________<BR>> > Personal_Submersibles mailing list<BR>> > Personal_Submersibles@psubs.org<BR>> > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<BR>> > <BR>> <BR>> <BR>> -----------------------------------------------------------------<BR>> -------------<BR>> <BR>> <BR>> _______________________________________________<BR>> Personal_Submersibles mailing list<BR>> Personal_Submersibles@psubs.org<BR>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<BR>> </DIV>