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Scuba Forum / General / February 2005Bottle and valve thread data
I have all the data for the threads, but to keep it easy to read and the tables aligned, I need to post a binary text file (notepad in Windows). Or, I can make them into a .pdf if that is better. If it is OK with everyone, I will post with the attachments, which are 2kb each. Scott  Signature-Varium et mutabilis semper femina Why not send them to me and I'll put them on my website... then, I can post a link to them and they don't eat up the newsgroup bandwidth If you want to do it that way, send them to aggie4you_at_yahoo > I have all the data for the threads, but to keep it easy to read and the > tables aligned, I need to post a binary text file (notepad in Windows). [quoted text clipped - 5 lines] > > Scott > Why not send them to me and I'll put them on my website... then, I can post > a link to them and they don't eat up the newsgroup bandwidth > > If you want to do it that way, send them to aggie4you_at_yahoo They will be on the way shortly; thanks Chris. > > Why not send them to me and I'll put them on my website... then, I can > post [quoted text clipped - 3 lines] > > They will be on the way shortly; thanks Chris. The files can be accessed through http://s92136212.onlinehome.us/thread_data.htm. I will leave them there for no less than 6 months from today (2-4-05) > I have all the data for the threads, but to keep it easy to read and the > tables aligned, I need to post a binary text file (notepad in Windows). Uhhhh... Isn't "binary text file" a contradiction in terms? > > I have all the data for the threads, but to keep it easy to read and the > > tables aligned, I need to post a binary text file (notepad in Windows). > > Uhhhh... Isn't "binary text file" a contradiction in terms? I don't know, I am a machinist not a nose picker. =;-) > I have all the data for the threads, but to keep it easy to read and the > tables aligned, I need to post a binary text file (notepad in Windows). [quoted text clipped - 5 lines] > > Scott Here it is in (very slightly edited)text: THREAD DATA for Common US & Euro SCUBA tanks G 5/8 BSP is the common DIN thread used on regs and tank valves. .750-14 NPSM is the larger of the SCUBA tank valve threads. NPSM is National Pipe Straight Mechanical. .875-14 UNF is just that, no pipe designations or other crossovers, this is the thread used on the smaller valves used with HP tanks. M25.000 X 2.000-6g is the European thread used for bottles. OSBORN PRODUCTS INC..DATA FOR PIPE THREADS 3/4-14 NPSM Outside diameter of pipe....................... 1.0500 Threads per inch............................... 14.0 Decimal lead................................... 0.07143 Allowance...................................... 0.0016 Max. major dia. of external thread...class 2A.. 1.034 Min. major dia. of external thread...class 2A.. 1.024 Max. pitch dia. of external thread...class 2A.. 0.9873 Min. pitch dia. of external thread...class 2A.. 0.9820 Min. minor dia. of internal thread...class 2B.. 0.958 Max. minor dia. of internal thread...class 2B.. 0.970 Min. pitch dia. of internal thread...class 2B.. 0.9889 Max. pitch dia. of internal thread...class 2B.. 0.9958 .875-14 UNF-2A EXTERNAL THREAD Number of starts............................... 1 Threads per inch............................... 14.0000 METRIC INCH Decimal lead is.................. 1.814300 0.07143 Major dia. is................from 22.18436 0.87340 to 21.92274 0.86310 Pitch dia. is................from 21.00580 0.82700 to 20.86864 0.82160 Your wire size is................ 1.14300 0.04500 Constant is...................... 1.85778 0.073141 Max. flat at root................ 0.45364 0.01786 Min. flat at root................ 0.22682 0.00893 Max. minor dia. of UN thread..... 20.22094 0.7961 Max. minor dia. of UNR thread.... 20.02282 0.7883 M.O.W. is....................from 22.86358 0.900141 to 22.72642 0.894741 Pitch dia. tol. for 2A is........ 0.13716 0.0054 Allowance for class 2A........... 0.04064 0.0016 The helix angle is............................. 1.57482 Or if you prefer 1 Degree 34 Minutes 29 Seconds .875-14 UNF-2B INTERNAL THREAD Number of starts............................... 1 Threads per inch............................... 14.0000 METRIC INCH Decimal lead is.................. 1.814300 0.07143 Major dia. is.................... 22.22500 0.8750 min. Pitch dia. is................from 21.04644 0.8286 to 21.22424 0.8356 Minor dia. is................from 20.26920 0.798 to 20.65020 0.813 Pitch dia. tol. for 2B is........ 0.17780 0.00700 The helix angle is............................. 1.57178 Or if you prefer 1 Degree 34 Minutes 18 Seconds G5/8 BSP 14 EXTERNAL THREAD Number of starts............................... 1 Threads per inch............................... 14.0000 Decimal lead is................................ 0.07143 The major diameter is......................from 0.9027 to 0.8924 The pitch diameter is......................from 0.8563 to 0.8511 Your wire size is.............................. 0.04000 Constant is.................................... 0.058141 Maximum flat at root is........................ 0.01786 Minimum flat at root is........................ 0.00893 Max. minor diameter of UN thread is............ 0.8254 Max. minor diameter of UNR thread is........... 0.8176 Measurement over wires is..................from 0.914441 to 0.909241 Pitch diameter tolerance for 2A is............. 0.0052 Allowance for class 2A is...................... 0.0016 The helix angle is............................. 1.52096 Or if you prefer 1 Degree 31 Minutes 15 Seconds G5/8 BSP 14 INTERNAL THREAD Number of starts............................... 1 Threads per inch............................... 14.0000 Decimal lead is................................ 0.07143 The major diameter is.......................min 0.9027 The pitch diameter is......................from 0.8563 to 0.8631 The minor diameter is......................from 0.825 to 0.841 Pitch diameter tolerance for 2B is............. 0.0068 The helix angle is............................. 1.52096 Or if you prefer 1 Degree 31 Minutes 15 Seconds These are COMPUTER values...................... Run date is 03-22-03 Number of starts............................... 1 Threads per inch............................... 14.0000 Decimal lead is................................ 0.07143 G5/8 BSP 14 THREAD PLUG GAGE The go major diameter is....................... 0.9027 +0.0006 The go pitch diameter is....................... 0.8563 +0.00030 The not go major diameter is................... 0.8940 -0.0006 The not go pitch diameter is................... 0.8631 -0.00030 Pitch diameter tolerance for 2B is............. 0.0068 Your wire size is.............................. 0.04000 Constant is.................................... 0.058141 Measurement over wires, go..................... 0.914441 Measurement over wires, not go................. 0.921241 The helix angle is............................. 1.52096 Or if you prefer 1 Degree 31 Minutes 15 Seconds M25.000 X 2.000-6g external thread. Allowance class is............................. g Tolerance grade for pitch dia. is.............. 6 Tolerance grade for major dia. is.............. 6 Number of starts............................... 1 Metric Inch Pitch is......................... 2.000 0.07874 Major dia. is................from 24.962 0.98276 to 24.682 0.97173 Pitch dia. is................from 23.663 0.93161 to 23.493 0.92492 Allowance is..................... 0.038 0.00150 Major dia. tolerance is.......... 0.280 0.01102 Pitch dia. tolerance is.......... 0.170 0.00669 Your wire size is................ 1.14300 0.045000 Constant is...................... 1.69695 0.066809 Max. width of flat at minor dia.. 0.500 0.01969 Min. width of flat at minor dia.. 0.289 0.01138 Max. flat form minor dia......... 22.797 0.89752 Measurement over wires, go....... 25.35995 0.998423 Measurement over wires, no go.... 25.18995 0.991730 The helix angle is............................. 1.541 Or if you prefer 1 Degree 32 Minutes 27 Seconds M25.000 X 2.000-6G internal thread. Allowance class is............................. G Tolerance grade for pitch dia. is.............. 6 Tolerance grade for minor dia. is.............. 6 Number of starts............................... 1 Metric Inch Pitch is......................... 2.000 0.07874 Minor dia. is................from 22.873 0.90051 to 23.248 0.91528 Pitch dia. is................from 23.739 0.93461 to 23.963 0.94343 Major dia. is................from 25.038 0.98575 to 25.551 1.00594 Allowance is..................... 0.038 0.00150 Minor dia. tolerance is.......... 0.375 0.01476 Pitch dia. tolerance is.......... 0.224 0.00882 Max. flat at major dia. is....... 0.250 0.00984 The helix angle is............................. 1.536 Or if you prefer 1 Degree 32 Minutes 10 Seconds > > I have all the data for the threads, but to keep it easy to read and the > > tables aligned, I need to post a binary text file (notepad in Windows). [quoted text clipped - 212 lines] > The helix angle is............................. 1.536 > Or if you prefer 1 Degree 32 Minutes 10 Seconds I love this group! Although I find Feeshs' obsessional preoccupation with Mr. Mossman's IQ fascinating (in a Freudian kinda sense), every now and then the group that apparently has a combined IQ three below a houseplant, throws us fellow low IQers a bone with the latter useful and informative material relevant to diving. Firstly, thank you very much Scott for providing the latter, Chris for hosting it and of course, thank you Mr. Gray for making it easily copy and pasteable for us Cro-Magnon Darwinian bottom dwellers of the low IQ species. Much appreciated. -- Randy F. Milak ~A man of few words and doesn't know what either one them means!~ > I love this group! > [quoted text clipped - 10 lines] > Randy F. Milak > ~A man of few words and doesn't know what either one them means!~ At the risk of sounding like an AOL "me too'er" I also wanted to thank Scott, Chris and Mike for this information. Great stuff. Alan > At the risk of sounding like an AOL "me too'er" I also wanted to thank > Scott, Chris and Mike for this information. Great stuff. Come on hombre; all you had to do was ask. > > At the risk of sounding like an AOL "me too'er" I also wanted to thank > > Scott, Chris and Mike for this information. Great stuff. > > Come on hombre; all you had to do was ask. Crap, you mean there's no Tequila involved? >> Come on hombre; all you had to do was ask. > > Crap, you mean there's no Tequila involved? How's about putting up the specs for a tequila bottle thread/DIN adapter so I can hook my reg up directly to the source? That way, if the reg is frozen to my mouth after an ice dive, I can simply switch bottles on the surface. >>> Come on hombre; all you had to do was ask. >> [quoted text clipped - 3 lines] >I can hook my reg up directly to the source? That way, if the reg is frozen >to my mouth after an ice dive, I can simply switch bottles on the surface. Perhaps you could sweet talk yer buddy Scott into fabricating a stainless steel switching block and a mounting bracket system to hold the bottle on the plate or backgas bottles a la those argon thingies that wussie drysuit divers use. That way ya wouldn't have to wait till after the dive to start taking the restorative libation on board. You could be well on your way to oblivion before you clear deco, all thanks to the marvels of modern on-the-fly-switching technology. For ice diving you should prolly switch to Vodka. It works well in freezing conditions and is certainly safer than Tequila. The little gusano might get a tad crusty in the cold and jam up the inlet orifice. JF > Perhaps you could sweet talk yer buddy Scott into fabricating a > stainless steel switching block and a mounting bracket system to hold [quoted text clipped - 3 lines] > could be well on your way to oblivion before you clear deco, all > thanks to the marvels of modern on-the-fly-switching technology. If I want to use it for deco, I'd need a redundant system. In that case, I'd rather fill one of the bottles with margarita mix so I have the option of blending on the fly or isolating the tequila bottle if I want straight shots. > For ice diving you should prolly switch to Vodka. It works well in > freezing conditions and is certainly safer than Tequila. The little > gusano might get a tad crusty in the cold and jam up the inlet > orifice. You're probably right about the vodka, but you're wrong about the gusano. Those little guys only find themselves in bottles of mezcal, not true tequila. Mezcal is for strokes. >> Perhaps you could sweet talk yer buddy Scott into fabricating a >> stainless steel switching block and a mounting bracket system to hold [quoted text clipped - 8 lines] >of blending on the fly or isolating the tequila bottle if I want straight >shots. Back gas in the argon bottle? >> For ice diving you should prolly switch to Vodka. It works well in >> freezing conditions and is certainly safer than Tequila. The little >> gusano might get a tad crusty in the cold and jam up the inlet >> orifice. >You're probably right about the vodka, but you're wrong about the gusano. >Those little guys only find themselves in bottles of mezcal, not true >tequila. Mezcal is for strokes. Who knew? I'm a Canuck. Our idea of shots is single malt sipped. JG >>If I want to use it for deco, I'd need a redundant system. In that case, >>I'd rather fill one of the bottles with margarita mix so I have the option >>of blending on the fly or isolating the tequila bottle if I want straight >>shots. > > Back gas in the argon bottle? Damn, I'm not one of those 160CF drinking Canucks, I'm just a normal big-boned American. Back tanks keep the back gas. I'm thinking more in line with the double SpareAir-sized tanks. They may not hold enough air to breathe but they should hold enough tequila to get a buzz. >>You're probably right about the vodka, but you're wrong about the gusano. >>Those little guys only find themselves in bottles of mezcal, not true >>tequila. Mezcal is for strokes. >> > Who knew? I'm a Canuck. Our idea of shots is single malt sipped. Plenty of worms in your malt too, they just filter them out. >>>If I want to use it for deco, I'd need a redundant system. In that case, >>>I'd rather fill one of the bottles with margarita mix so I have the option [quoted text clipped - 7 lines] >line with the double SpareAir-sized tanks. They may not hold enough air to >breathe but they should hold enough tequila to get a buzz. There's such a thing as 160's? Man, I'd need a front end loader to carry me to the water and lift me out. Besides, why would you need that much air? There's only so many fish to see. And I've been thinking on this libation transport system. Seems to me it might be simpler to use back gas as a propellant. The pressure would be enough to keep a constant flow tequila mist blowing gently into yer mouthpiece. It would take a little experimentation to get the right flowrate for yer swallow rate, but once it was fine-tuned it would leave you to imbibe on a metered basis thoughout the duration of yer bottom time without the unnecessary taskloading of having to switch to the tequila bottle. >>>You're probably right about the vodka, but you're wrong about the gusano. >>>Those little guys only find themselves in bottles of mezcal, not true [quoted text clipped - 3 lines] > >Plenty of worms in your malt too, they just filter them out. I hate when my malt gets chewy. JF In fact all it takes is a simple combination of already existing items. You need independant doubles, a longer water protection tube inside one of the bottles, reaching down to the bottom. Fill the one bottle with your favorite booze. A DIN valve (G 5/8) with twin outlets, both outlets host a reduction G5/8 to UNF3/8, and an inflator male post. One is fed intermediate pressure by a standard hose from the other bottles first stage. The other has a standard inflator hose equipped with an air gun, acting as a handy tap, ready to supply you with the favorite flavour ("sip a kick into your dive", just according to the old Oceanic tune from the early Eighties " put a spring in your kick". Have fun Matthias >>How's about putting up the specs for a tequila bottle thread/DIN adapter so >>I can hook my reg up directly to the source? That way, if the reg is frozen [quoted text clipped - 14 lines] > > JF >In fact all it takes is a simple combination of already existing items. > [quoted text clipped - 8 lines] >kick into your dive", just according to the old Oceanic tune from the >early Eighties " put a spring in your kick". Independent doubles are for strokes. >Have fun Natch. JF > >> Come on hombre; all you had to do was ask. > > [quoted text clipped - 3 lines] > I can hook my reg up directly to the source? That way, if the reg is frozen > to my mouth after an ice dive, I can simply switch bottles on the surface. May I suggest one of these... only soak the relevant parts in tequila instead of water. that way, you can breathe your booze while you're diving... > > >> Come on hombre; all you had to do was ask. > > > [quoted text clipped - 9 lines] > instead of water. that way, you can breathe your booze while you're > diving... Oops... let me try that again... one of these: http://tinyurl.com/6yy2b > I love this group! > > Although I find Feeshs' obsessional preoccupation with Mr. Mossman's IQ > fascinating (in a Freudian kinda sense), every now and then the group that > apparently has a combined IQ three below a houseplant, throws us fellow low IQers > a bone with the latter useful and informative material relevant to diving. sh.t, all ya had to do was ask. I do this for a living, you know. > Firstly, thank you very much Scott for providing the latter Absolutely no sweat; it makes life worth living for me to know that I was to provide something of value to you. The biggest pain in the a.s of all this was nailing down the G5/8 BSP, AKA "DIN" fitting. I finally determined the dimensions by measuring and averaging 10 DIN fittings from Poseidon, APEKS, making plug gages out of brass in 10 different sizes, and entering the data into the thread software I use. As far as information I could locate, there was a huge variation in the specs called out, depending upon who you listened to, and noe of it matched what I was measuring, at least not within an allowance that I would accept. Typical thread fittings on regs and tanks, to be honest, are horribly sloppy. I wouldnt let a threaded assembly that sloppy leave my bench. We all bet our lives on it, and pay good money for this stuff. > , Chris for hosting it Ditto. Thanks Chris. > and of course, thank you Mr. Gray for making it easily copy and pasteable for us Thanks Guapo. I was going to do it, but I am lazy by nature. (plus I wanted to get it out there before someone puts a valve through their face) > Cro-Magnon Darwinian bottom dwellers of the low IQ species. Much appreciated. <grunt> |
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