Can someone tell me what causes a regulator to do this and how to fix it? This is just with the gas turned on, both lines are closed with no kegs connected on either side. Pressure will not establish and instead just rapidly rises to the point I’m afraid something is going to explode. https://m.youtube.com/shorts/LxWd_Zeo6Ig
If the pressure gauge is right (and it appears it is) then the regulator probably has a defective diaphragm. It may be fouled (some type of impurity) or maybe the spring behind the adjustment knob is not doing its job correctly. Q1?: Is this new? If yes I would let the supplier replace it. If it's out of warranty I'm told it's easy to disassemble and inspect (lots of instructions online for this step). Q2? It looks like the adjustment knob is loosey-goosey, i.e. not a firm connection. Is that the case or can you firmly feel the spring behind as you turn? Q3? How high have you let it rise?
it appears that the keg is set to a high pressure point. Simply put, the regulator is one way valve. If the keg presents 50 psi to the gauge, and the gauge is set to anything less than 50 psi the gauge will show 50 psi, or whatever is present within the keg. Turn the regulator down... a lot. Turn off the quarter turn gas valve. Pull the PRV until almost no gas escapes, listen for it to stop. Then turn the quarter turn valve on. Turn the regulator pressure up, slowly, clockwise. When you reach 10 psi or so, stop, let it reach the set point. Dial it in slowly. Gas goes from 800 psi (more or less) in the gas tank, through the regulator, down to a regulated pressure, maybe 12 psi. Gas will not go back into the tank. If your keg presents anything more than your set point the gauge is going to show the reg pressure because that is the system pressure. You can't put gas back into the gas tank. Disconnecting the keg does not solve the problem. The PRV must be pulled to dump the pressure. If you still have problems, check back with us. Regulators are notoriously squirrely. Simple. Cheers.
