A refrigeration device having a refrigerant circuit comprising a compression unit , a heat source heat exchanger , a first utilization heat exchanger and a second utilization heat exchanger connected in parallel at the heat source heat exchanger , and a flow path switching mechanism that switches flow of refrigerant, wherein the flow path switching mechanism includes first to fourth flow paths and an opening and closing mechanism (V1, V2, V3, V4, 75, 76) that opens and closes a corresponding one of the flow paths , a first connection point (C1) connecting an inflow portion of the first flow path and an inflow portion of the second flow path is connected to a discharge portion of the compression unit , a second connection point (C2) connecting an outflow portion of the first flow path and an inflow portion of the third flow path is connected to a gas-side end of the heat source heat exchanger , a third connection point (C3) connecting an outflow portion of the second flow path and an inflow portion of the fourth flow path is connected to a gas-side end of the second utilization heat exchanger , and a fourth connection point (C4) connecting an outflow portion of the third flow path and an outflow portion of the fourth flow path , and a gas-side end of the first utilization heat exchanger are connected to a suction portion of the compression unit , wherein the opening and closing mechanism (V1, V2, V3, V4, 75, 76) includes a valve (V1, V2, V3, V4) connected to at least one of the first flow path , the second flow path , the third flow path , and the fourth flow path , and the valve (V1, V2, V3, V4) is configured to open and close the corresponding one of the flow paths , characterized in that the valve (V1, V2, V3, V4) includes a flow rate adjustment valve having an adjustable opening degree. the flow path switching mechanism includes first to fourth flow paths and an opening and closing mechanism (V1, V2, V3, V4, 75, 76) that opens and closes a corresponding one of the flow paths , a first connection point (C1) connecting an inflow portion of the first flow path and an inflow portion of the second flow path is connected to a discharge portion of the compression unit , a second connection point (C2) connecting an outflow portion of the first flow path and an inflow portion of the third flow path is connected to a gas-side end of the heat source heat exchanger , a third connection point (C3) connecting an outflow portion of the second flow path and an inflow portion of the fourth flow path is connected to a gas-side end of the second utilization heat exchanger , and a fourth connection point (C4) connecting an outflow portion of the third flow path and an outflow portion of the fourth flow path , and a gas-side end of the first utilization heat exchanger are connected to a suction portion of the compression unit , wherein the opening and closing mechanism (V1, V2, V3, V4, 75, 76) includes a valve (V1, V2, V3, V4) connected to at least one of the first flow path , the second flow path , the third flow path , and the fourth flow path , and the valve (V1, V2, V3, V4) is configured to open and close the corresponding one of the flow paths , characterized in that the valve (V1, V2, V3, V4) includes a flow rate adjustment valve having an adjustable opening degree. <EOS>