material e g metal such as e g steel or from a suitable plastic or fiber reinforced plastic also in order to prevent cold welding between valve seat 10 and valve element 2 a suitable material combination can be selected preferably different materials for the valve element 2 and the valve seat 10 are used such as e g a valve seat 10 made of steel and a valve element 2 made of aluminum optionally with a special surface treatment such as e g an eloxal coating however the valve element 2 can also be made in combination with a valve seat 10 made of metal a suitable plastic or fiber reinforced plastic it is also conceivable to omit the movable adjustment part 8 and the adjustment nut 12 as shown in fig2 the electromagnet 5 can be arranged in the suitably formed center part 9 a which e g as center part 9 and adjustment part 8 can be formed together the adjustment of the valve stroke can then be carried out by means of different spacers between center part 9 a and valve element 2 or abutment ring 23 the above described configuration of a gas valve 1 also allows a very simple assembly and maintenance of the valve because the valve seat 10 can be removed in a very simple manner and the other parts of the gas valve 1 are then accessible from the side of the valve seat 1 for this e g a snap ring 29 which fixes the guide pin 4 in the valve seat 10 has to be removed whereupon the valve seat 10 can be removed of course it is also possible to remove the valve seat 10 together with the guide pin 4 through the preferred arrangement of.