Elster - VGBF 50F40-3
86048010 gas pressure regulator Spring-loaded, with pre-pressure compensation membrane and zero degree, for Keeping the adjustable pressure constant DN 50 Flange according to ISO 7005 PU max. 4 bar Locking screw in the input and output For gas, EC type tested and certified Set to 20 mbar (range 10-30 mbar)