Multiple setting device for gas-burner

摘要

The setting device has two or more electromagnetically-operated safety valves in series with an adjustable servo-controlled gas pressure regulator, contained within a metallic housing (10). The housing is formed as an extruded aluminium block, incorporating the gas flow channels (23,24,25,26), gas chambers (13,14) and at least some of the valve seats (48) for the safety valves. The profile block has a standard length and is sectioned off from an endless extruded profile, with the longitudinal termination walls (4,4') on either side fitted with seals (5,5') for sealing the open profile.