Valve housing for valve

The invention relates to a method for manufacturing a valve housing (10) of a valve (1), in which the valve housing is formed from a main part (11) and a cover (12), in which first, the main part (11) is formed with an outer edge section (20) defining an inner surface and an outer surface, and an opening from the outside to an inner hollow (6), in which the inner surface is formed with an inner recess (23), and the outer surface is formed with an outer recess (23); the inner recess (23) has a first surface (22) and a second surface (24) and a first contact surface (27), and wherein the cover (12) comprises a fourth surface (31) and a second contact surface (33), and wherein the method comprises positioning the cover (12) within the main part (11), a step of pressing the fourth surface (31) against the second surface (24) and the second contact surface (33) against the first contact surface (27), and wherein the next step is radially pressing at least the outer portion of the outer edge section (20) to a secon