Advise please, pressure switch

[Andzejus1981]

How bad is and how to fix it?

Few more:

is metal filler will help? I have JB Weld Marine right now
new pressure switch? only I can find is Burisch looks the same or you know better place to buy

Thanks

 

[rtbcomp]

Mend it with a new one.

It looks like a generic pressure switch, loads on Ebay, Amazon, Machine Mart &c.

You'll just have to make sure the connection for the thin pipe from the non-return valve to the switch (the unloading pipe) is the same.

 

[Andzejus1981]

Mend it with a new one.

It looks like a generic pressure switch, loads on Ebay, Amazon, Machine Mart &c.

You'll just have to make sure the connection for the thin pipe from the non-return valve to the switch (the unloading pipe) is the same.

Ordered new one
https://www.machinemart.co.uk/p/pressure-switch-4-port-20-amp-1-phase/

but I urgently need to use the compressor this weekend (couple hours I hope) for soda blasting so are metal filler will do the job until new switch arrives?

 

[rtbcomp]

Nothing to lose by trying it, don't overtighten the union though, especially if it has a tapered thread. A couple of wraps of PTFE tape may help.

 

[slim_boy_fat]

so are metal filler will do the job until new switch arrives?

Unless you ordered it for 'next day delivery' it may be that the metal filler won't be fully cured before you need to do the job. Still worth a try if you get it done tonight.

 

[wristpin]

Lots of Loctite Hydraulic Seal and just do it up by hand.

 

[Pigeon_Droppings2]

Make up a steel clamp to brace the outside....like a c clamp that you find on brake hoses....then a load of tape on the threads.

Use a nice thick piece of steel for the clamp....you could shape the casing a little to give it a nice snug fit. Could even use those bolt holes to clamp it on with a couple of tabs....post some pics....I really enjoy quick engineering fixes

 

[roofman]

don't even bother trying to fix.. https://www.amazon.co.uk/COMPRESSOR...ocphy=9046490&hvtargid=pla-696837609734&psc=1

 

[frank horton]

or just use some quality silicone RTV sealant.......clean with brake or carb cleaner screw in by hand and cure overnight.....
given up on JB weld forever......does the marine stuff float....hahaha......

 

[armalites]

Even if it leaks it may still be enough to get you running. Most likely that has been caused by taper fitting being tightened too much I would guess.

 

[Andzejus1981]

Little update:
Metal filling doesn't help at all.
Received today new pressure switch, thread for pipe is to big

Maybe it's no point to return maybe there are some adaptor?

 

[rtbcomp]

Are the other ports the correct size? This is the sort of thing you want, you'll need to know the right thread sizes though

https://uk.rs-online.com/web/p/prod...LWT7FLIp_a-mprSVjmYaAu4AEALw_wcB&gclsrc=aw.ds

 

[Andzejus1981]

Are the other ports the correct size? This is the sort of thing you want, you'll need to know the right thread sizes though

Others are the same, only different is for pipe, Clarke (new) 16mm, mine Wolf is 13mm

 

[rtbcomp]

You should find the info here -

https://www.duncanrogers.com/tools/thread.asp

You're most likely looking for BSP sizes, note with BSP the size (eg 1/2 BSP) is not the thread diameter!

 

[carbon]

From those approx sizes I would have thought you would need a 3/8" to 1/4" BSP reducing bush

 

[Andzejus1981]

Thank you for your help guys

 

[Andzejus1981]

Just a question about PTFE liquid cure time: how long to wait?

 

[123hotchef]

Depends on brand it will say on bottle. Mine is 24hours for.full cure

 

[MCKDAVID]

some might be quicker, but the ones I've had have all been the same, 24hours before full pressure.

 

[Andzejus1981]

Flomasta PTFE Liquid from screwfix I use, it's says rapid cure so left it for almost 24hours and my compressor works like a dream again but new Clarke unit didnt stop even after filling tank 10bar+ . Wolf90 stopped at 8bar, should I addjust up to 8bar again or I can make 10bar? Main works am doing is spray paiting if this helps