Spunding Valve | Adjustable Pressure Release Valve | Push Fittings

See here for a video of how to use simply and easily without a pressure gauge

While this spunding valve may look a little clunky compared to the more common brass one with the poppet valve on the end after a lot of testing we believe this to be a superior design.

The diaphragm valve is much more accurate and allows for extremely precise adjustments of the outlet pressure.

A spunding valve is an adjustable pressure relief valve, they are most commonly used to do keg to keg transfers of carbonated liquid under pressure.

To do this attach your regulator to the full vessels gas inlet post (snub nose for instance) then join the 2 liquid post together with 2 liquid disconnects and a length of beer line.

Attach the spunding valve with a gas disconnect to the empty vessel (mini keg for example). 

Set the pressure on the regulator to 12-15psi and then unwind the spunding valve until gas begins to vent. Set pressure to 8-10psi on it and the liquid will transfer across under pressure without losing any carbonation.

It can also be used to set a release point for pressure in a pressure fermenter, this is very useful as you can set it to the correct psi (depending on fermentation temperature and beer style - see this page for more details) and once finished the beer will already be carbonated (you will need to either chill the fermenter to allow the liquid to hold carbonation while you bottle or use the method outlined above to transfer under pressure to stop it losing the carbonation while warm though.