Parralell thread end feed fittings

[mutley racers]

Morning all. Just about to install a crosswatwr shower valve and want to connect in the valve with end feed 22mm x 3/4 male. Manual says not to use tapered threads. Cannot find parallel out there that come with end feed.

Any ideas

Thanks

 

[ShaunCorbs]

Tapered will be fine just don’t go ott tightening it

JTM Endfeed Male Iron | Plumbing Superstore®

JTM's 'Endfeed' range of copper piping and fittings is a versatile, varied option for every aspect of gas and heating applications, from domesti...

www.jtmplumbing.co.uk

 

[Ben-gee]

As BSPT and BSTT will fit in each other’s female sockets; you will be fine using a tapered thread, just don’t graunch it up too much and measure carefully in case it needs shortening.

 

[mutley racers]

Tapered will be fine just don’t go ott tightening it

JTM Endfeed Male Iron | Plumbing Superstore®

JTM's 'Endfeed' range of copper piping and fittings is a versatile, varied option for every aspect of gas and heating applications, from domesti...

www.jtmplumbing.co.uk

Is it only compression that do parallel threads? The valve comes with a 15yr warranty so don't really want to mess that up by using tapered.

Anyone used loctite 577. Going to be trying this on my metal to metal fittings from now on.

 

[Ben-gee]

Shaun beat me to it!

 

[mutley racers]

As BSPT and BSTT will fit in each other’s female sockets; you will be fine using a tapered thread, just don’t graunch it up too much and measure carefully in case it needs shortening.

Thanks. Still a bit weary when MI's say not too.

 

[ShaunCorbs]

Yes tapered will be better with 577

Parallel unless tight you have to leave for 24 hours

 

[SimonG]

Watch out with the crosswater body. They seem to use some really crap brass in their castings

 

[mutley racers]

Watch out with the crosswater body. They seem to use some really crap brass in their castings

Geesh, not what I am wanting to hear as this valve just cost me over 1300 quids

 

[mutley racers]

Think I will just have to go with compression with parralel threads. Crazy really as compression fittings are meant to be accessible.

 

[Basher]

Would a tank connector be a bodge too far? Has a parallel thread!

 

[mutley racers]

Would a tank connector be a bodge too far? Has a parallel thread!

20 quid a pop.

 

[Basher]

20 quid a pop.

Makes the price of the valve seem very reasonable!

 

[WC1]

If it does the job and gives you peace of mind then why not.

 

[mutley racers]

Yes tapered will be better with 577

Parallel unless tight you have to leave for 24 hours

Hi Shaun, where did you find the info on parralel threads cure time. I cannot find any info on the uses of 577?

 

[Gasmk1]

End Feed Male Straight Coupling - 22mm x 3/4"

END FEED MALE STRAIGHT COUPLER 22MM X 3/4"

www.monsterplumb.co.uk

 

[Timmy D]

Think I will just have to go with compression with parralel threads. Crazy really as compression fittings are meant to be accessible.

Just leave the nut/olive off and solder it.

 

[mutley racers]

Just got this from Loctite.

Good morning Lee,



Thank you for your email.

The Loctite 577 has potable water approval only if Loctite SF 7649 is used with it. This approval is only up to 23C.

However, you can use Loctite 5400 it has WRAS approval up to 86C.

Bugger, I used it without the activator a couple of days ago.

 

[ShaunCorbs]

It was approved for hot and cold but they pulled it around a year ago I guess because they made a new one

 

[mutley racers]

It was approved for hot and cold but they pulled it around a year ago I guess because they made a new one

Correct Shaun. It failed the wras bucket test. Which means they apply it to fittings and drop the fittings in the water and leave for a while. If it tastes a little different, it fails. This failed.

 

[WC1]

Spoke to a mate couple of weeks ago who swears by 577, especially on rad tails. He's used gallons of the stuff. I got a tube a few days ago to see what it's all about. It is amazing but I was concerned about the not suitable for hot water business above - is that just for potable?
I did a strength test this evening - loctite 577 on a 15mm thread, do up loosely, leave 20 mins to cure, then soak for 5 mins in red hot water out of the kettle, while still hot I could barely get it apart even with a spanner and it was hard work all the way.

 

[ShaunCorbs]

Once it cured it won’t come apart easily it’s because they have brought a new product to market and haven’t re done the wras approval for hot water (tbh it’s bs it was approved for all applications don’t get why they can remove it / the application)

 

[WC1]

It's great stuff I've just been playing with it tonight. I think I'll be using it a lot.

 

[ShaunCorbs]

The only down side if the threads are a bit loose eg you can put the fitting in by hand you have to let it set and don’t move it

 

[WC1]

But on the upside, even if the threads are a bit loose you can get a good strong joint 👍