I've only got a 6kg Gasit cylinder, with an external fill point and want to upgrade to either 2x6kg or an 11kg. The cylinder is quite full at the moment, am I ok to disconnect it from the fill point, or is the fill point the NRV?
Found the answer; an NRV is incorparated in the 80% shut off valve.
1) The gas inlet valve known as a 80% shut off valve, is there so when the tank is filled to 80% full this valve shuts off every single time. Should the fill pipe be disconnected or be damaged there is also a non return valve fitted inside our 80% shut off valve which automatically stops any release of gas.