Manifold blocks MVI are designed to distribute the flow of the working medium of hot water heating systems to consumers. In this case, the "consumer" means a separate heating device or a group of devices, a circuit or loop of a "warm floor", individual parts or branches of the system. The manifold block combines stainless steel supply and return manifolds, shut-off valves, thermostatic valves (with the possibility of installing an electrothermal actuator) and mounting brackets. Manifold blocks can operate on both water and low-freezing (glycol) coolant. The manifold blocks are produced with the number of outlets from 2 to 12. The circulation loops are connected using 3/4 "Eurocone" (HP) fittings.