Double effect nitrogen safety valve FEMALE DIN connection

Safety valve, tank for nitrogen installation. The valve is also designed to protect the wine with an inert gas, in this case nitrogen, without causing an increase in pressure in the tank. The valve maintains the pressure in the tank at about 30 Millibar, i.e. 0.03 Bar. Thanks to this, we can protect the wine with nitrogen also in non-pressure tanks, without the risk of damaging them. DIN DN40.