Oil-multi-bypass for oil-fired heating system has magnetic valve and needle valve in bypass line each controlled by control device

摘要

The oil-multi-bypass (8), inserted in a fuel line (5) has a magnetic valve (10) and a needle valve (9) inserted in a bypass line, with a control device (12) controlling the operation of both valves, for diverting the fuel along the bypass and for regulating the supplied fuel quantity by periodic opening and closing of the valves.