Redditch Secondary Regulator

[alexlark]

Can someone tell me if it is possible to remove the hex screw from the top of this reg and fit a bottom entry pressure gauge? If yes, what size thread is it?

Thanks

[Kev888]

Yes it is possible. Some of mine have unscrewed reasonably easily, others not so much, in fact I broke the Allen key on one!

If you do get a really stubborn one, I ended up taking 'everything' else off/out of the body and heating with a blow torch (being careful not to melt the aluminium) to loosen the screw; this worked very well on two, but the third had a plastic washer hidden underneath the screw which melted and dripped down inside, making cleaning it up annoying.

The gauge thread is 1/8" BSP, if I recall correctly (the gas in/out threads are bigger). The official cornelius gauges have unusual long parallel threads that allow them to be screwed right down to seat on a washer at the bottom of the hole, but I got some cheapo ebay gauges with a more standard tapered thread and just used a liquid PTFE to seal them.

EDIT: BTW if its new to you, could be worth testing it before you go to the trouble; some of mine (which I got 'sold as seen') had leaks and a couple even had internal leaks with the valve, that allowed the output pressure to slowly climb up to the same as the input pressure.

Cheers
Kev

[alexlark]

Thanks Kev, much appreciated. I see a lot on ebay without the gauge.

[Kev888]

Yes, they do come up quite often. They can be quite good value, though I can't find a source of (small quantity) spares and quite a few of mine have had defects, so its not always been a bargain.

Cheers
Kev

[MattyBoy]

Could someone please inform me what the little tiny pipe is that comes out of the Redditch secondary reg and also which position is which for the black "tap"

Can't find anything on www

Thanks
Matty

[Kev888]

The small hollow tube about a mm or two in diameter near the bottom left screw here:

is a spring pin, or at least a friction-fit pin. IIRC its job is to hold the plastic lever in the aluminium block.

My regulators are in storage at the mo, but 'I think' I'm right in recalling that when the lever is pointing downwards it is closed, i.e. preventing gas out of the outlet. If it helps to check, my regulators have the word 'open' formed in raised plastic on one side of the lever, which is only visible from the front when the lever is in the open position.

Cheers
Kev

[kisslikeether]

I've got a couple where I managed to fit a gauge successfully. The thing that threw me was that I only had metric allen keys and the hole was imperial....

[MattyBoy]

The small hollow tube about a mm or two in diameter near the bottom left screw here:

is a spring pin, or at least a friction-fit pin. IIRC its job is to hold the plastic lever in the aluminium block.

My regulators are in storage at the mo, but 'I think' I'm right in recalling that when the lever is pointing downwards it is closed, i.e. preventing gas out of the outlet. If it helps to check, my regulators have the word 'open' formed in raised plastic on one side of the lever, which is only visible from the front when the lever is in the open position.

Cheers
Kev

Thanks Kev. Good info

Matty