Isolation of a turbine engine heat exchanger in the event of a leak from an electrical and mechanical hydraulic control valve

An assembly for a fluid circuit of a turbine engine, comprising:

• a main branch comprising a heat exchanger,
• wherein the assembly includes a control valve of fluid to the heat exchanger, the fluid control valve comprises:
• a fluid inlet,
• a main fluid outlet which is fluidly connected to the main branch,
• a fluid bypass outlet which is fluidly connected to a bypass branch which is arranged parallel to the main branch,
• a shutter which is movable between a main open position in which it closes the bypass outlet and it allows circulating the fluid in the main branch, and a bypass position in which it closes the main outlet and it allows circulating the fluid in the bypass branch,
• resilient means for biasing the shutter which is configured to bias the displacement of the shutter so that it closes the main outlet when a fluid pressure value is lower than a first threshold value, wherein the resilient means comprise a spring, and
• electrical control means for electrically controlling the shutter configured to bias the displacement of the shutter to the main open position or the bypass position.