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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Leaking 1/2" union -- face on a lathe?
Awl --
It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... Alternatively, can I just putty/dope the faces up? I know this is a no-no in water plumbing, but mebbe it's an OK stopgap here? Even tho the psi are higher -- 120 air vs. 60 or less for water. -- EA |
#2
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Leaking 1/2" union -- face on a lathe?
"Existential Angst" wrote in message ... Awl -- It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... Alternatively, can I just putty/dope the faces up? I know this is a no-no in water plumbing, but mebbe it's an OK stopgap here? Even tho the psi are higher -- 120 air vs. 60 or less for water. -- EA face them off and cut an oring groove in one half. basilisk |
#3
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Leaking 1/2" union -- face on a lathe?
On Apr 9, 11:53*am, "Existential Angst"
wrote: It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... * Alternatively, can I just putty/dope the faces up? If it ever needs disassembly, the 'just dope' solution has flaws. Why not get out the razor knife and some oaktag or gasket material and cut yourself a gasket? Someone did a dope-but-no-gasket replacement on my car's water pump. When it needed replacement, I found that the housing parts were glued tight and couldn't be budged. No gaskets meant that the attaching bolts were a couple of turns tighter, and went into the engine block past the fully-cut-thread length (so the bolts broke, of course, at disassembly time). |
#4
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Leaking 1/2" union -- face on a lathe?
On Apr 9, 2:53*pm, "Existential Angst"
wrote: Awl -- It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... * -- EA I would think it would work. What is the worst that can happen? Does not work and you have to get another union. But it might be easier to use some valve grinding compound and lap the joint smooth. Dan |
#5
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Leaking 1/2" union -- face on a lathe?
"basilisk" wrote in message
... "Existential Angst" wrote in message ... Awl -- It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... Alternatively, can I just putty/dope the faces up? I know this is a no-no in water plumbing, but mebbe it's an OK stopgap here? Even tho the psi are higher -- 120 air vs. 60 or less for water. -- EA face them off and cut an oring groove in one half. Good one! Esp. since I got o-rings!! -- EA basilisk |
#6
Posted to rec.crafts.metalworking
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Leaking 1/2" union -- face on a lathe?
"Existential Angst" wrote in message ... "basilisk" wrote in message ... "Existential Angst" wrote in message ... Awl -- It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... Alternatively, can I just putty/dope the faces up? I know this is a no-no in water plumbing, but mebbe it's an OK stopgap here? Even tho the psi are higher -- 120 air vs. 60 or less for water. -- EA face them off and cut an oring groove in one half. Good one! Esp. since I got o-rings!! -- EA basilisk I remember a flat water union with flat rubber washers. Maybe the washer is old and cracked. |
#7
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Leaking 1/2" union -- face on a lathe?
"Bill McKee" wrote in message
m... "Existential Angst" wrote in message ... "basilisk" wrote in message ... "Existential Angst" wrote in message ... Awl -- It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... Alternatively, can I just putty/dope the faces up? I know this is a no-no in water plumbing, but mebbe it's an OK stopgap here? Even tho the psi are higher -- 120 air vs. 60 or less for water. -- EA face them off and cut an oring groove in one half. Good one! Esp. since I got o-rings!! -- EA basilisk I remember a flat water union with flat rubber washers. Maybe the washer is old and cracked. Heh, no washer, which is proly the real problem, given this style of union. I'll go and see what fits, mebbe a garden hose washer will do.. I can always cut a washer from 1/8" rubber. It doesn't take much of a leak to empty a tank overnight. -- EA |
#8
Posted to rec.crafts.metalworking
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Leaking 1/2" union -- face on a lathe?
"Existential Angst" wrote in message
... "Bill McKee" wrote in message m... "Existential Angst" wrote in message ... "basilisk" wrote in message ... "Existential Angst" wrote in message ... Awl -- It's an old-style union (flat mating faces), immediately on my compressor, with the controls and fittings on that. Should be a quick job, if it will work... will save me a trip to the store. Plus it would be but another DIY thrill.... Alternatively, can I just putty/dope the faces up? I know this is a no-no in water plumbing, but mebbe it's an OK stopgap here? Even tho the psi are higher -- 120 air vs. 60 or less for water. -- EA face them off and cut an oring groove in one half. Good one! Esp. since I got o-rings!! -- EA basilisk I remember a flat water union with flat rubber washers. Maybe the washer is old and cracked. Heh, no washer, which is proly the real problem, given this style of union. I'll go and see what fits, mebbe a garden hose washer will do.. I can always cut a washer from 1/8" rubber. It doesn't take much of a leak to empty a tank overnight. Heh, washer seems to be working! When you got a hammer, everything looks like a nail.... when an empty lathe is standing around, everything seems to need turning! -- EA -- EA |
#9
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Leaking 1/2" union -- face on a lathe?
Existential Angst wrote:
It's 120 psi. Fiber would proly be good, or nylon. I put in a nylon-ish washer, leaked a little, tightened'er up, rock solid now for hours at 105 psi. .... Good to know - thanks for closing the loop. Bob |
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