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Re: Unions
Posted: Fri Jun 14, 2013 5:35 pm
by Rainer
Do you know Serto from Switzerland?
You can connect and disconnect it without moving the pipes sidewards. All Swiss Steamboaters like them - because the Swiss have the Swiss Frank to pay for it

But in some places for drains or other multi line systems they are quite nice:
Have a look at the catalog here:
Brass:
http://www.serto.com/fileadmin/serto/PD ... _D_F_E.pdf
Stainless:
http://www.serto.com/fileadmin/serto/PD ... _D_F_E.pdf
Re: Unions
Posted: Fri Jun 14, 2013 8:48 pm
by Lopez Mike
Thank you Rainer!
Now that I have all this information I think I will certainly look into machining my own.
Mike
Re: Unions
Posted: Sun Jun 16, 2013 12:18 am
by Rainer
Congratulations - Buying is like giving up
Re: Unions
Posted: Sun Jun 16, 2013 1:48 pm
by fredrosse
In the US, Swagelok makes similar fittings "VCO" type. Swagelok is expensive, and on e-bay the prices for their compression fittings have risen to nearly wholesale prices, as so many have been searching for these fittings. But the "VCO" type fittings are relatively unknown and not wanted by most of the e-bay shoppers, so you can find these at relatively low prices on e-bay. Trolling for the fittings you want may take some time.
I do not have any vested interest in Swagelok Corp., but I have used their fittings for many years, and have never found any other brand that comes close to Swagelok quality.
Re: Unions
Posted: Sun Jun 16, 2013 2:21 pm
by Lopez Mike
Fred,
Thanks for the tip. I got a quote on new ones and it was serious money. I'm falling more and more in love with making my own anyway.
Mike
Re: Unions
Posted: Sun Jun 16, 2013 6:06 pm
by Oilking
Mike,
Before you start turning a lot of brass into chips, you might look at JIC 37deg flare X NPT hydraulic fittings.
http://www.discounthydraulichose.com/SA ... s_s/24.htm
Using NPTFM X 37deg M and a NPTFM X 37deg swivel to make the connections, you should be able to do safety, whistle, & gauges for under $50 if the prices listed on the site above are to be belived.
Dave
Re: Unions
Posted: Sun Jun 16, 2013 6:58 pm
by Lopez Mike
Crips!! I described exactly what I wanted to do at the local hydraulic shop and they never mentioned the female fittings. All I could think of was a short hunk of copper pipe and I wasn't that excited about hanging a couple of feet of whistle stuff out on that.
I'll have a good look at the bore with the respect to the safety valve use. For the others. it will work I'm sure.
The forum coughs up another solution.
Thanks Dave,
Mike
Re: Unions
Posted: Tue Jun 18, 2013 1:17 am
by Lopez Mike
The hydraulic fittings look they are going to work out just right. I'm going to have to go to a 5/8" flare on the safety valve line to keep the bore the same size as a 1/2' schedule 80 pipe. And they are really inexpensive when bought on line. Less than cheap plumbing fittings at the local box store.
Thanks again Dave and all,
Mike