Help with primary regulator from UK

[reverb1983]

Hey brewers! Im just getting started with my kegging set up. I have two beautiful 15L s/s kegs, but now I need to use them. I have the primary regulator pictured below, which will reduce me down to around 35psi.

Problem is, what I expect to be the outlet has a weird plastic T-piece in it and it doesnt want to unscrew or anything, just spins but won't come out. Anyone know what it is, and if I should just brute force unscrew it?

Thanks peeps! Appreciate the help!

Reverb

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[jekeane]

I have no idea what this thing is. It certainly looks like a regulator of some sort but not like one i've ever seen for kegs.

Have you unscrewed the silver part and looked at the gray piece from the inside? It looks like some sort of pressure release to me.

What are the two brass arms for and where is your pressure gauge? is there a set screw missing from the picture?

35psi is way to much pressure to serve or carbonate at. Initial carbonation can happen at that pressure but normalization for serving pressure is between 8-14psi depending on your set up.

 

[reverb1983]

Ah... Pressure release makes sense in how it feels. Just not where it's located.

The two brass arms are over pressure safety release valves set to 45psi I think. So that if the diaphragm fails it doesn't let full bottle pressure fill the system. Safety first eh!

http://www.cellartrainingcourse.co.uk/page33.html

As this website suggests, the purpose of the primary is simply to reduce system pressure down to safer values, not provide control.

The set screw is set down inside the top threaded pipe. But I have no guages yet to be able to adjust this.

Still early days in this adventure. Thanks for your help!

 

[reverb1983]

I'm such a doofus. It's a metal speed fit fitting, and a bung. Problem solved!

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