Compact valve blocks Kromschroeder CG110, CG115, CG120 (size 1, connection sizes from DN10 to DN20) of various designs: with gas regulator, 2-stage regulator, with pneumatic control of the mixture composition for optimal use of energy and combustion. Kromschroder CG gas valves are used in pressurized or under vacuum gas burners, in pressurized gas burners with multi-stage or modulating regulation.