These valves enable Unitank fermenters to accurately ferment under pressure and/or condition beer before transferring to a keg. Perfect for the brewer that wants to be able to dial in pressures on the fly without having to match the release pressure using a gauge.
Ideally suited to the blow-off arm of our commercial stainless steel tanks. Or modified for use of larger homebrew scale tanks.

To vent gas / pressure manually, simply lift the ball piece above the polycarbonate cup.

For replacement polycarbonate cups see below.
KL27472 - 1.5 Inch TC Spunding Valve Replacement Polycarbonate Cup