Keg pressure

[Steve D]

I'm not quite sure whats going on but I cant get pressure in my king keg. There are no leaks. I fitted a Schrader valve so that I can monitor the pressure but the pressure is not enough to show a reading on the pressure gauge. When I give it a blast of C02 the pressure relief kicks in. How mush pressure should I expect to get before the pressure relief valve gives way?

 

[terrym]

I'm not quite sure whats going on but I cant get pressure in my king keg. There are no leaks. I fitted a Schrader valve so that I can monitor the pressure but the pressure is not enough to show a reading on the pressure gauge. When I give it a blast of C02 the pressure relief kicks in. How mush pressure should I expect to get before the pressure relief valve gives way?

Most PBs should be stamped with 'Maximum Working Pressure n psi', If it's not then it's usually 10 or 15 psig, although. the rubber band RV should vent just before then.
However if you are trying to pressurise the PB and you are certain there is no internal pressure but the RV vents it sounds like you need to replace the rubber band because its faulty. If I remember correctly one of the KK users on here was suggesting that this needs to be done on a regular basis.

 

[Steve D]

Oh right... I didn't know that.
Thanks

Can I buy a rubber band or do I have to get the complete valve?

 

[kelper]

You can get the rubber band here S30 Pressure Release Rubbers - Pack of 10

or singly Replacement Rubber Pressure Relief Valve Washer - Pressure Barrel Cap S30 & Pin 5055265724562 | eBay

or from a local home brew shop

 

[terrym]

.....and perhaps a 'how to change it' somewhere in here
https://www.thehomebrewforum.co.uk/threads/pressure-barrels-more-than-you-wanted-to-know.89344/

 

[Steve D]

Thank you..

 

[kelper]

Thank you..

What pressure gauge are you using? Many tyre pressure gauges are NOT suitable as they go up to 60psi. You want a low-pressure type - 0 - 15 psi

 

[BrewMeHappy]

I used to put a spot of vaseline between the valve and rubber band to help with this. Give it a try and you might find it works too.

 

[kelper]

If you put vaseline inside your rubbers they may slip off

 

[Graz]

If you put vaseline inside your rubbers they may slip off

:hat: