Heat control device

摘要

The device has a check valve (60) with a body (1) to circulate a fluid. The fluid compresses a spring (7) and releases a fluid flow control unit (5) from an opening (2) to open electric contact ends (C1, C2), when the fluid flows in a direction (S1) at a pressure higher than loading of the spring. The unit is supported against the opening to close the ends, when the fluid flows in another direction (S2). The fluid flows from the opening (2) towards an opening (4) in the direction (S1) in a conducting state and flows from the opening (4) towards the opening (2) in the direction (S2) in a resistive state.